GraphQL - Vector search parameters
Setting search parameters​
Vector search parameters are added to GraphQL queries on the class level.
For example:
{
Get {
<Class> (
<filter>: {
variables: values
}
){
property
}
}
}
Built-in parameters​
B​uilt-in search parameters are available in all Weaviate instances and don't require any modules.​
nearVector​
This filter allows you to find data objects in the vicinity of an input vector. It's supported by the Get{}
function.
- Note: this argument is different from the GraphQL
Explore{}
function ) - Note: Cannot use multiple
'near'
arguments, or a'near'
argument along with an'ask'
filter
Variables​
Variables | Mandatory | Type | Description |
---|---|---|---|
vector | yes | [float] | This variable takes a vector embedding in the form of an array of floats. The array should have the same length as the vectors in this class. |
distance | no | float | The required degree of similarity between an object's characteristics and the provided filter values. Can't be used together with the certainty variable. The interpretation of the value of the distance field depends on the distance metric used. |
certainty | no | float | Normalized Distance between the result item and the search vector. Normalized to be between 0 (identical vectors) and 1 (perfect opposite).. Can't be used together with the distance variable. |
Example​
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get{
Publication(
nearVector: {
vector: [-0.36840257,0.13973749,-0.28994447,-0.18607682,0.20019795,0.15541431,-0.42353877,0.30262852,0.2724561,0.07069917,0.4877447,0.038771532,0.64523,-0.15907241,-0.3413626,-0.026682584,-0.63310874,-0.33411884,0.082939014,0.30305764,0.045918174,-0.21439327,-0.5005205,0.6210859,-0.2729049,-0.51221114,0.09680918,0.094923325,-0.15688285,-0.07325482,0.6588305,0.0523736,-0.14173415,-0.27428055,0.25526586,0.057506185,-0.3103442,0.028601522,0.124522656,0.66984487,0.12160647,-0.5090515,-0.540393,-0.39546522,-0.2201204,0.34625968,-0.21068871,0.21132985,0.048714135,0.09043683,0.3176081,-0.056684002,-0.12117501,-0.6591976,-0.26731065,0.42615625,0.33333477,-0.3240578,-0.18771006,0.2328068,-0.17239179,-0.33583146,-0.6556605,-0.10608161,-0.5135395,-0.25123677,-0.23004892,0.7036331,0.04456794,0.41253626,0.27872285,-0.28226635,0.11927197,-0.4677766,0.4343466,-0.17538455,0.10621233,0.95815116,0.23587844,-0.006406698,-0.10512518,-1.1125883,-0.37921682,0.040789194,0.676718,0.3369762,0.040712647,0.580487,0.20063736,-0.021220192,-0.09071747,-0.0023735985,0.30007777,-0.039925132,0.4035474,-0.2518212,-0.17846306,0.12371392,-0.0703354,-0.3752431,-0.652917,0.5952828,1.3426708,-0.08167235,-0.38515738,0.058423538,-0.08100355,-0.192886,0.3745164,-0.23291737,0.33326542,-0.6019264,-0.42822492,-0.6524583,-0.15210791,-0.5073593,0.022548754,-0.058033653,-0.47369233,-0.30890635,0.6338296,0.0017854869,0.1954949,0.99348027,-0.26558784,-0.058124136,1.149388,0.02915948,0.013422121,0.25484946,-0.030017598,-0.23879935,0.053123385,-0.36463016,-0.0024245526,0.1202083,-0.45966506,-0.34140104,-0.08484162,-0.03537422,-0.2817959,0.25044164,-0.5060605,0.1252808,-0.032539487,0.110069446,-0.20679846,-0.46421885,-0.4141739,0.26994973,-0.070687145,0.16862138,-0.20162229,0.22199251,-0.2771402,0.23653336,0.16585203,-0.08286354,-0.15343396,0.23893964,-0.7453282,-0.16549355,-0.1947069,0.46136436,0.22064126,0.28654936,-0.038697664,0.037633028,-0.80988157,0.5094175,-0.0920082,0.25405347,-0.64169943,0.43366328,-0.2999211,-0.4090591,0.11957859,0.00803617,-0.0433745,0.12818244,0.28464508,-0.31760025,0.16558012,-0.33553946,-0.3943465,0.59569097,-0.6524206,0.3683173,-0.60456693,0.2046492,0.46010277,0.24695799,0.2946015,0.11376746,-0.027988048,0.03749422,-0.16577742,0.23407385,-0.0231737,-0.023245076,0.08752677,0.2299883,0.35467404,0.046193745,-0.39828986,0.21079691,0.38396686,-0.0018698421,0.16047359,-0.057517264,-0.203534,0.23438136,-0.84250915,0.22371331,0.0058325706,0.30733636,0.19518353,-0.108008966,0.6509316,0.070131645,-0.24023099,0.28779706,0.2326336,0.07004021,-0.45955566,0.20426086,-0.37472793,-0.049604423,0.4537271,0.6133582,-1.0527759,-0.5472505,0.15193434,0.5296606,-0.11560251,0.07279209,0.40557706,0.2505283,0.24490519,0.017602902,-0.004647707,0.16608049,0.12576887,0.118216865,0.4403996,0.39552462,-0.22196701,-0.061155193,0.03693534,-0.4022908,0.3842317,-0.0831345,0.01930883,0.3446575,-0.2167439,-0.23994556,-0.09370326,-0.3671856,0.044011243,0.017895095,-0.019855855,-0.16416992,0.17858285,0.31287143,0.38368022,-0.006513525,0.45780763,-0.23027879,0.108570844,-0.4449492,-0.035763215,0.03818417,0.040017277,-0.17022872,-0.2622464,0.65610534,0.16720143,0.2515769,-0.23535803,0.62484455,0.16771325,-0.62404263,0.19176348,-0.72786695,0.18485649,-0.30914405,-0.3230534,-0.24064465,0.28841522,0.39792386,0.15618932,0.03928854,0.18277727,-0.101632096,0.1868196,-0.33366352,0.086561844,0.48557812,-0.6198209,-0.07978742]
}
){
name
_additional {
certainty
}
}
}
}
import weaviate
client = weaviate.Client("http://localhost:8080")
nearVector = {
"vector": [-0.36840257,0.13973749,-0.28994447,-0.18607682,0.20019795,0.15541431,-0.42353877,0.30262852,0.2724561,0.07069917,0.4877447,0.038771532,0.64523,-0.15907241,-0.3413626,-0.026682584,-0.63310874,-0.33411884,0.082939014,0.30305764,0.045918174,-0.21439327,-0.5005205,0.6210859,-0.2729049,-0.51221114,0.09680918,0.094923325,-0.15688285,-0.07325482,0.6588305,0.0523736,-0.14173415,-0.27428055,0.25526586,0.057506185,-0.3103442,0.028601522,0.124522656,0.66984487,0.12160647,-0.5090515,-0.540393,-0.39546522,-0.2201204,0.34625968,-0.21068871,0.21132985,0.048714135,0.09043683,0.3176081,-0.056684002,-0.12117501,-0.6591976,-0.26731065,0.42615625,0.33333477,-0.3240578,-0.18771006,0.2328068,-0.17239179,-0.33583146,-0.6556605,-0.10608161,-0.5135395,-0.25123677,-0.23004892,0.7036331,0.04456794,0.41253626,0.27872285,-0.28226635,0.11927197,-0.4677766,0.4343466,-0.17538455,0.10621233,0.95815116,0.23587844,-0.006406698,-0.10512518,-1.1125883,-0.37921682,0.040789194,0.676718,0.3369762,0.040712647,0.580487,0.20063736,-0.021220192,-0.09071747,-0.0023735985,0.30007777,-0.039925132,0.4035474,-0.2518212,-0.17846306,0.12371392,-0.0703354,-0.3752431,-0.652917,0.5952828,1.3426708,-0.08167235,-0.38515738,0.058423538,-0.08100355,-0.192886,0.3745164,-0.23291737,0.33326542,-0.6019264,-0.42822492,-0.6524583,-0.15210791,-0.5073593,0.022548754,-0.058033653,-0.47369233,-0.30890635,0.6338296,0.0017854869,0.1954949,0.99348027,-0.26558784,-0.058124136,1.149388,0.02915948,0.013422121,0.25484946,-0.030017598,-0.23879935,0.053123385,-0.36463016,-0.0024245526,0.1202083,-0.45966506,-0.34140104,-0.08484162,-0.03537422,-0.2817959,0.25044164,-0.5060605,0.1252808,-0.032539487,0.110069446,-0.20679846,-0.46421885,-0.4141739,0.26994973,-0.070687145,0.16862138,-0.20162229,0.22199251,-0.2771402,0.23653336,0.16585203,-0.08286354,-0.15343396,0.23893964,-0.7453282,-0.16549355,-0.1947069,0.46136436,0.22064126,0.28654936,-0.038697664,0.037633028,-0.80988157,0.5094175,-0.0920082,0.25405347,-0.64169943,0.43366328,-0.2999211,-0.4090591,0.11957859,0.00803617,-0.0433745,0.12818244,0.28464508,-0.31760025,0.16558012,-0.33553946,-0.3943465,0.59569097,-0.6524206,0.3683173,-0.60456693,0.2046492,0.46010277,0.24695799,0.2946015,0.11376746,-0.027988048,0.03749422,-0.16577742,0.23407385,-0.0231737,-0.023245076,0.08752677,0.2299883,0.35467404,0.046193745,-0.39828986,0.21079691,0.38396686,-0.0018698421,0.16047359,-0.057517264,-0.203534,0.23438136,-0.84250915,0.22371331,0.0058325706,0.30733636,0.19518353,-0.108008966,0.6509316,0.070131645,-0.24023099,0.28779706,0.2326336,0.07004021,-0.45955566,0.20426086,-0.37472793,-0.049604423,0.4537271,0.6133582,-1.0527759,-0.5472505,0.15193434,0.5296606,-0.11560251,0.07279209,0.40557706,0.2505283,0.24490519,0.017602902,-0.004647707,0.16608049,0.12576887,0.118216865,0.4403996,0.39552462,-0.22196701,-0.061155193,0.03693534,-0.4022908,0.3842317,-0.0831345,0.01930883,0.3446575,-0.2167439,-0.23994556,-0.09370326,-0.3671856,0.044011243,0.017895095,-0.019855855,-0.16416992,0.17858285,0.31287143,0.38368022,-0.006513525,0.45780763,-0.23027879,0.108570844,-0.4449492,-0.035763215,0.03818417,0.040017277,-0.17022872,-0.2622464,0.65610534,0.16720143,0.2515769,-0.23535803,0.62484455,0.16771325,-0.62404263,0.19176348,-0.72786695,0.18485649,-0.30914405,-0.3230534,-0.24064465,0.28841522,0.39792386,0.15618932,0.03928854,0.18277727,-0.101632096,0.1868196,-0.33366352,0.086561844,0.48557812,-0.6198209,-0.07978742]
}
result = (
client.query
.get("Publication", "name")
.with_additional("distance")
.with_near_vector(nearVector)
.do()
)
print(result)
const weaviate = require('weaviate-client');
const client = weaviate.client({
scheme: 'http',
host: 'localhost:8080',
});
client.graphql
.get()
.withClassName('Publication')
.withFields('name _additional {certainty}}')
.withNearVector({vector: [-0.36840257,0.13973749,-0.28994447,-0.18607682,0.20019795,0.15541431,-0.42353877,0.30262852,0.2724561,0.07069917,0.4877447,0.038771532,0.64523,-0.15907241,-0.3413626,-0.026682584,-0.63310874,-0.33411884,0.082939014,0.30305764,0.045918174,-0.21439327,-0.5005205,0.6210859,-0.2729049,-0.51221114,0.09680918,0.094923325,-0.15688285,-0.07325482,0.6588305,0.0523736,-0.14173415,-0.27428055,0.25526586,0.057506185,-0.3103442,0.028601522,0.124522656,0.66984487,0.12160647,-0.5090515,-0.540393,-0.39546522,-0.2201204,0.34625968,-0.21068871,0.21132985,0.048714135,0.09043683,0.3176081,-0.056684002,-0.12117501,-0.6591976,-0.26731065,0.42615625,0.33333477,-0.3240578,-0.18771006,0.2328068,-0.17239179,-0.33583146,-0.6556605,-0.10608161,-0.5135395,-0.25123677,-0.23004892,0.7036331,0.04456794,0.41253626,0.27872285,-0.28226635,0.11927197,-0.4677766,0.4343466,-0.17538455,0.10621233,0.95815116,0.23587844,-0.006406698,-0.10512518,-1.1125883,-0.37921682,0.040789194,0.676718,0.3369762,0.040712647,0.580487,0.20063736,-0.021220192,-0.09071747,-0.0023735985,0.30007777,-0.039925132,0.4035474,-0.2518212,-0.17846306,0.12371392,-0.0703354,-0.3752431,-0.652917,0.5952828,1.3426708,-0.08167235,-0.38515738,0.058423538,-0.08100355,-0.192886,0.3745164,-0.23291737,0.33326542,-0.6019264,-0.42822492,-0.6524583,-0.15210791,-0.5073593,0.022548754,-0.058033653,-0.47369233,-0.30890635,0.6338296,0.0017854869,0.1954949,0.99348027,-0.26558784,-0.058124136,1.149388,0.02915948,0.013422121,0.25484946,-0.030017598,-0.23879935,0.053123385,-0.36463016,-0.0024245526,0.1202083,-0.45966506,-0.34140104,-0.08484162,-0.03537422,-0.2817959,0.25044164,-0.5060605,0.1252808,-0.032539487,0.110069446,-0.20679846,-0.46421885,-0.4141739,0.26994973,-0.070687145,0.16862138,-0.20162229,0.22199251,-0.2771402,0.23653336,0.16585203,-0.08286354,-0.15343396,0.23893964,-0.7453282,-0.16549355,-0.1947069,0.46136436,0.22064126,0.28654936,-0.038697664,0.037633028,-0.80988157,0.5094175,-0.0920082,0.25405347,-0.64169943,0.43366328,-0.2999211,-0.4090591,0.11957859,0.00803617,-0.0433745,0.12818244,0.28464508,-0.31760025,0.16558012,-0.33553946,-0.3943465,0.59569097,-0.6524206,0.3683173,-0.60456693,0.2046492,0.46010277,0.24695799,0.2946015,0.11376746,-0.027988048,0.03749422,-0.16577742,0.23407385,-0.0231737,-0.023245076,0.08752677,0.2299883,0.35467404,0.046193745,-0.39828986,0.21079691,0.38396686,-0.0018698421,0.16047359,-0.057517264,-0.203534,0.23438136,-0.84250915,0.22371331,0.0058325706,0.30733636,0.19518353,-0.108008966,0.6509316,0.070131645,-0.24023099,0.28779706,0.2326336,0.07004021,-0.45955566,0.20426086,-0.37472793,-0.049604423,0.4537271,0.6133582,-1.0527759,-0.5472505,0.15193434,0.5296606,-0.11560251,0.07279209,0.40557706,0.2505283,0.24490519,0.017602902,-0.004647707,0.16608049,0.12576887,0.118216865,0.4403996,0.39552462,-0.22196701,-0.061155193,0.03693534,-0.4022908,0.3842317,-0.0831345,0.01930883,0.3446575,-0.2167439,-0.23994556,-0.09370326,-0.3671856,0.044011243,0.017895095,-0.019855855,-0.16416992,0.17858285,0.31287143,0.38368022,-0.006513525,0.45780763,-0.23027879,0.108570844,-0.4449492,-0.035763215,0.03818417,0.040017277,-0.17022872,-0.2622464,0.65610534,0.16720143,0.2515769,-0.23535803,0.62484455,0.16771325,-0.62404263,0.19176348,-0.72786695,0.18485649,-0.30914405,-0.3230534,-0.24064465,0.28841522,0.39792386,0.15618932,0.03928854,0.18277727,-0.101632096,0.1868196,-0.33366352,0.086561844,0.48557812,-0.6198209,-0.07978742]})
.do()
.then(res => {
console.log(res)
})
.catch(err => {
console.error(err)
});
package main
import (
"context"
"fmt"
"github.com/weaviate/weaviate-go-client/v4/weaviate"
"github.com/weaviate/weaviate-go-client/v4/weaviate/graphql"
)
func main() {
cfg := weaviate.Config{
Host: "localhost:8080",
Scheme: "http",
}
client := weaviate.New(cfg)
className := "Publication"
name := graphql.Field{Name: "name"}
_additional := graphql.Field{
Name: "_additional", Fields: []graphql.Field{
{Name: "certainty"}, // only supported if distance==cosine
{Name: "distance"}, // always supported
},
}
nearVector := client.GraphQL().NearVectorArgBuilder().
WithVector([]float32{-0.36840257, 0.13973749, -0.28994447, -0.18607682, 0.20019795, 0.15541431, -0.42353877, 0.30262852, 0.2724561, 0.07069917, 0.4877447, 0.038771532, 0.64523, -0.15907241, -0.3413626, -0.026682584, -0.63310874, -0.33411884, 0.082939014, 0.30305764, 0.045918174, -0.21439327, -0.5005205, 0.6210859, -0.2729049, -0.51221114, 0.09680918, 0.094923325, -0.15688285, -0.07325482, 0.6588305, 0.0523736, -0.14173415, -0.27428055, 0.25526586, 0.057506185, -0.3103442, 0.028601522, 0.124522656, 0.66984487, 0.12160647, -0.5090515, -0.540393, -0.39546522, -0.2201204, 0.34625968, -0.21068871, 0.21132985, 0.048714135, 0.09043683, 0.3176081, -0.056684002, -0.12117501, -0.6591976, -0.26731065, 0.42615625, 0.33333477, -0.3240578, -0.18771006, 0.2328068, -0.17239179, -0.33583146, -0.6556605, -0.10608161, -0.5135395, -0.25123677, -0.23004892, 0.7036331, 0.04456794, 0.41253626, 0.27872285, -0.28226635, 0.11927197, -0.4677766, 0.4343466, -0.17538455, 0.10621233, 0.95815116, 0.23587844, -0.006406698, -0.10512518, -1.1125883, -0.37921682, 0.040789194, 0.676718, 0.3369762, 0.040712647, 0.580487, 0.20063736, -0.021220192, -0.09071747, -0.0023735985, 0.30007777, -0.039925132, 0.4035474, -0.2518212, -0.17846306, 0.12371392, -0.0703354, -0.3752431, -0.652917, 0.5952828, 1.3426708, -0.08167235, -0.38515738, 0.058423538, -0.08100355, -0.192886, 0.3745164, -0.23291737, 0.33326542, -0.6019264, -0.42822492, -0.6524583, -0.15210791, -0.5073593, 0.022548754, -0.058033653, -0.47369233, -0.30890635, 0.6338296, 0.0017854869, 0.1954949, 0.99348027, -0.26558784, -0.058124136, 1.149388, 0.02915948, 0.013422121, 0.25484946, -0.030017598, -0.23879935, 0.053123385, -0.36463016, -0.0024245526, 0.1202083, -0.45966506, -0.34140104, -0.08484162, -0.03537422, -0.2817959, 0.25044164, -0.5060605, 0.1252808, -0.032539487, 0.110069446, -0.20679846, -0.46421885, -0.4141739, 0.26994973, -0.070687145, 0.16862138, -0.20162229, 0.22199251, -0.2771402, 0.23653336, 0.16585203, -0.08286354, -0.15343396, 0.23893964, -0.7453282, -0.16549355, -0.1947069, 0.46136436, 0.22064126, 0.28654936, -0.038697664, 0.037633028, -0.80988157, 0.5094175, -0.0920082, 0.25405347, -0.64169943, 0.43366328, -0.2999211, -0.4090591, 0.11957859, 0.00803617, -0.0433745, 0.12818244, 0.28464508, -0.31760025, 0.16558012, -0.33553946, -0.3943465, 0.59569097, -0.6524206, 0.3683173, -0.60456693, 0.2046492, 0.46010277, 0.24695799, 0.2946015, 0.11376746, -0.027988048, 0.03749422, -0.16577742, 0.23407385, -0.0231737, -0.023245076, 0.08752677, 0.2299883, 0.35467404, 0.046193745, -0.39828986, 0.21079691, 0.38396686, -0.0018698421, 0.16047359, -0.057517264, -0.203534, 0.23438136, -0.84250915, 0.22371331, 0.0058325706, 0.30733636, 0.19518353, -0.108008966, 0.6509316, 0.070131645, -0.24023099, 0.28779706, 0.2326336, 0.07004021, -0.45955566, 0.20426086, -0.37472793, -0.049604423, 0.4537271, 0.6133582, -1.0527759, -0.5472505, 0.15193434, 0.5296606, -0.11560251, 0.07279209, 0.40557706, 0.2505283, 0.24490519, 0.017602902, -0.004647707, 0.16608049, 0.12576887, 0.118216865, 0.4403996, 0.39552462, -0.22196701, -0.061155193, 0.03693534, -0.4022908, 0.3842317, -0.0831345, 0.01930883, 0.3446575, -0.2167439, -0.23994556, -0.09370326, -0.3671856, 0.044011243, 0.017895095, -0.019855855, -0.16416992, 0.17858285, 0.31287143, 0.38368022, -0.006513525, 0.45780763, -0.23027879, 0.108570844, -0.4449492, -0.035763215, 0.03818417, 0.040017277, -0.17022872, -0.2622464, 0.65610534, 0.16720143, 0.2515769, -0.23535803, 0.62484455, 0.16771325, -0.62404263, 0.19176348, -0.72786695, 0.18485649, -0.30914405, -0.3230534, -0.24064465, 0.28841522, 0.39792386, 0.15618932, 0.03928854, 0.18277727, -0.101632096, 0.1868196, -0.33366352, 0.086561844, 0.48557812, -0.6198209, -0.07978742})
ctx := context.Background()
result, err := client.GraphQL().Get().
WithClassName(className).
WithFields(name, _additional).
WithNearVector(nearVector).
Do(ctx)
if err != nil {
panic(err)
}
fmt.Printf("%v", result)
}
package technology.semi.weaviate;
import technology.semi.weaviate.client.Config;
import technology.semi.weaviate.client.WeaviateClient;
import technology.semi.weaviate.client.base.Result;
import technology.semi.weaviate.client.v1.graphql.model.GraphQLResponse;
import technology.semi.weaviate.client.v1.graphql.query.argument.NearVectorArgument;
import technology.semi.weaviate.client.v1.graphql.query.fields.Field;
public class App {
public static void main(String[] args) {
Config config = new Config("http", "localhost:8080");
WeaviateClient client = new WeaviateClient(config);
String className = "Publication";
Field title = Field.builder().name("title").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{
Field.builder().name("certainty").build() // only supported if distance==cosine
Field.builder().name("distance").build() // always supported
}).build();
Float[] vector = new Float[]{-0.36840257f,0.13973749f,-0.28994447f,-0.18607682f,0.20019795f,0.15541431f,-0.42353877f,0.30262852f,0.2724561f,0.07069917f,0.4877447f,0.038771532f,0.64523f,-0.15907241f,-0.3413626f,-0.026682584f,-0.63310874f,-0.33411884f,0.082939014f,0.30305764f,0.045918174f,-0.21439327f,-0.5005205f,0.6210859f,-0.2729049f,-0.51221114f,0.09680918f,0.094923325f,-0.15688285f,-0.07325482f,0.6588305f,0.0523736f,-0.14173415f,-0.27428055f,0.25526586f,0.057506185f,-0.3103442f,0.028601522f,0.124522656f,0.66984487f,0.12160647f,-0.5090515f,-0.540393f,-0.39546522f,-0.2201204f,0.34625968f,-0.21068871f,0.21132985f,0.048714135f,0.09043683f,0.3176081f,-0.056684002f,-0.12117501f,-0.6591976f,-0.26731065f,0.42615625f,0.33333477f,-0.3240578f,-0.18771006f,0.2328068f,-0.17239179f,-0.33583146f,-0.6556605f,-0.10608161f,-0.5135395f,-0.25123677f,-0.23004892f,0.7036331f,0.04456794f,0.41253626f,0.27872285f,-0.28226635f,0.11927197f,-0.4677766f,0.4343466f,-0.17538455f,0.10621233f,0.95815116f,0.23587844f,-0.006406698f,-0.10512518f,-1.1125883f,-0.37921682f,0.040789194f,0.676718f,0.3369762f,0.040712647f,0.580487f,0.20063736f,-0.021220192f,-0.09071747f,-0.0023735985f,0.30007777f,-0.039925132f,0.4035474f,-0.2518212f,-0.17846306f,0.12371392f,-0.0703354f,-0.3752431f,-0.652917f,0.5952828f,1.3426708f,-0.08167235f,-0.38515738f,0.058423538f,-0.08100355f,-0.192886f,0.3745164f,-0.23291737f,0.33326542f,-0.6019264f,-0.42822492f,-0.6524583f,-0.15210791f,-0.5073593f,0.022548754f,-0.058033653f,-0.47369233f,-0.30890635f,0.6338296f,0.0017854869f,0.1954949f,0.99348027f,-0.26558784f,-0.058124136f,1.149388f,0.02915948f,0.013422121f,0.25484946f,-0.030017598f,-0.23879935f,0.053123385f,-0.36463016f,-0.0024245526f,0.1202083f,-0.45966506f,-0.34140104f,-0.08484162f,-0.03537422f,-0.2817959f,0.25044164f,-0.5060605f,0.1252808f,-0.032539487f,0.110069446f,-0.20679846f,-0.46421885f,-0.4141739f,0.26994973f,-0.070687145f,0.16862138f,-0.20162229f,0.22199251f,-0.2771402f,0.23653336f,0.16585203f,-0.08286354f,-0.15343396f,0.23893964f,-0.7453282f,-0.16549355f,-0.1947069f,0.46136436f,0.22064126f,0.28654936f,-0.038697664f,0.037633028f,-0.80988157f,0.5094175f,-0.0920082f,0.25405347f,-0.64169943f,0.43366328f,-0.2999211f,-0.4090591f,0.11957859f,0.00803617f,-0.0433745f,0.12818244f,0.28464508f,-0.31760025f,0.16558012f,-0.33553946f,-0.3943465f,0.59569097f,-0.6524206f,0.3683173f,-0.60456693f,0.2046492f,0.46010277f,0.24695799f,0.2946015f,0.11376746f,-0.027988048f,0.03749422f,-0.16577742f,0.23407385f,-0.0231737f,-0.023245076f,0.08752677f,0.2299883f,0.35467404f,0.046193745f,-0.39828986f,0.21079691f,0.38396686f,-0.0018698421f,0.16047359f,-0.057517264f,-0.203534f,0.23438136f,-0.84250915f,0.22371331f,0.0058325706f,0.30733636f,0.19518353f,-0.108008966f,0.6509316f,0.070131645f,-0.24023099f,0.28779706f,0.2326336f,0.07004021f,-0.45955566f,0.20426086f,-0.37472793f,-0.049604423f,0.4537271f,0.6133582f,-1.0527759f,-0.5472505f,0.15193434f,0.5296606f,-0.11560251f,0.07279209f,0.40557706f,0.2505283f,0.24490519f,0.017602902f,-0.004647707f,0.16608049f,0.12576887f,0.118216865f,0.4403996f,0.39552462f,-0.22196701f,-0.061155193f,0.03693534f,-0.4022908f,0.3842317f,-0.0831345f,0.01930883f,0.3446575f,-0.2167439f,-0.23994556f,-0.09370326f,-0.3671856f,0.044011243f,0.017895095f,-0.019855855f,-0.16416992f,0.17858285f,0.31287143f,0.38368022f,-0.006513525f,0.45780763f,-0.23027879f,0.108570844f,-0.4449492f,-0.035763215f,0.03818417f,0.040017277f,-0.17022872f,-0.2622464f,0.65610534f,0.16720143f,0.2515769f,-0.23535803f,0.62484455f,0.16771325f,-0.62404263f,0.19176348f,-0.72786695f,0.18485649f,-0.30914405f,-0.3230534f,-0.24064465f,0.28841522f,0.39792386f,0.15618932f,0.03928854f,0.18277727f,-0.101632096f,0.1868196f,-0.33366352f,0.086561844f,0.48557812f,-0.6198209f,-0.07978742f};
NearVectorArgument nearVector = NearVectorArgument.builder()
.vector(vector)
.build();
Result<GraphQLResponse> result = client.graphQL().get()
.withClassName(className)
.withFields(title, _additional)
.withNearVector(nearVector)
.run();
if (result.hasErrors()) {
System.out.println(result.getError());
return;
}
System.out.println(result.getResult());
}
}
$ echo '{
"query": "{
Get{
Publication(
nearVector: {
vector: [-0.36840257,0.13973749,-0.28994447,-0.18607682,0.20019795,0.15541431,-0.42353877,0.30262852,0.2724561,0.07069917,0.4877447,0.038771532,0.64523,-0.15907241,-0.3413626,-0.026682584,-0.63310874,-0.33411884,0.082939014,0.30305764,0.045918174,-0.21439327,-0.5005205,0.6210859,-0.2729049,-0.51221114,0.09680918,0.094923325,-0.15688285,-0.07325482,0.6588305,0.0523736,-0.14173415,-0.27428055,0.25526586,0.057506185,-0.3103442,0.028601522,0.124522656,0.66984487,0.12160647,-0.5090515,-0.540393,-0.39546522,-0.2201204,0.34625968,-0.21068871,0.21132985,0.048714135,0.09043683,0.3176081,-0.056684002,-0.12117501,-0.6591976,-0.26731065,0.42615625,0.33333477,-0.3240578,-0.18771006,0.2328068,-0.17239179,-0.33583146,-0.6556605,-0.10608161,-0.5135395,-0.25123677,-0.23004892,0.7036331,0.04456794,0.41253626,0.27872285,-0.28226635,0.11927197,-0.4677766,0.4343466,-0.17538455,0.10621233,0.95815116,0.23587844,-0.006406698,-0.10512518,-1.1125883,-0.37921682,0.040789194,0.676718,0.3369762,0.040712647,0.580487,0.20063736,-0.021220192,-0.09071747,-0.0023735985,0.30007777,-0.039925132,0.4035474,-0.2518212,-0.17846306,0.12371392,-0.0703354,-0.3752431,-0.652917,0.5952828,1.3426708,-0.08167235,-0.38515738,0.058423538,-0.08100355,-0.192886,0.3745164,-0.23291737,0.33326542,-0.6019264,-0.42822492,-0.6524583,-0.15210791,-0.5073593,0.022548754,-0.058033653,-0.47369233,-0.30890635,0.6338296,0.0017854869,0.1954949,0.99348027,-0.26558784,-0.058124136,1.149388,0.02915948,0.013422121,0.25484946,-0.030017598,-0.23879935,0.053123385,-0.36463016,-0.0024245526,0.1202083,-0.45966506,-0.34140104,-0.08484162,-0.03537422,-0.2817959,0.25044164,-0.5060605,0.1252808,-0.032539487,0.110069446,-0.20679846,-0.46421885,-0.4141739,0.26994973,-0.070687145,0.16862138,-0.20162229,0.22199251,-0.2771402,0.23653336,0.16585203,-0.08286354,-0.15343396,0.23893964,-0.7453282,-0.16549355,-0.1947069,0.46136436,0.22064126,0.28654936,-0.038697664,0.037633028,-0.80988157,0.5094175,-0.0920082,0.25405347,-0.64169943,0.43366328,-0.2999211,-0.4090591,0.11957859,0.00803617,-0.0433745,0.12818244,0.28464508,-0.31760025,0.16558012,-0.33553946,-0.3943465,0.59569097,-0.6524206,0.3683173,-0.60456693,0.2046492,0.46010277,0.24695799,0.2946015,0.11376746,-0.027988048,0.03749422,-0.16577742,0.23407385,-0.0231737,-0.023245076,0.08752677,0.2299883,0.35467404,0.046193745,-0.39828986,0.21079691,0.38396686,-0.0018698421,0.16047359,-0.057517264,-0.203534,0.23438136,-0.84250915,0.22371331,0.0058325706,0.30733636,0.19518353,-0.108008966,0.6509316,0.070131645,-0.24023099,0.28779706,0.2326336,0.07004021,-0.45955566,0.20426086,-0.37472793,-0.049604423,0.4537271,0.6133582,-1.0527759,-0.5472505,0.15193434,0.5296606,-0.11560251,0.07279209,0.40557706,0.2505283,0.24490519,0.017602902,-0.004647707,0.16608049,0.12576887,0.118216865,0.4403996,0.39552462,-0.22196701,-0.061155193,0.03693534,-0.4022908,0.3842317,-0.0831345,0.01930883,0.3446575,-0.2167439,-0.23994556,-0.09370326,-0.3671856,0.044011243,0.017895095,-0.019855855,-0.16416992,0.17858285,0.31287143,0.38368022,-0.006513525,0.45780763,-0.23027879,0.108570844,-0.4449492,-0.035763215,0.03818417,0.040017277,-0.17022872,-0.2622464,0.65610534,0.16720143,0.2515769,-0.23535803,0.62484455,0.16771325,-0.62404263,0.19176348,-0.72786695,0.18485649,-0.30914405,-0.3230534,-0.24064465,0.28841522,0.39792386,0.15618932,0.03928854,0.18277727,-0.101632096,0.1868196,-0.33366352,0.086561844,0.48557812,-0.6198209,-0.07978742]
}
){
name
_additional {
certainty // only supported if distance==cosine
distance // always supported
}
}
}
}"
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
🟢 Try out this GraphQL example in the Weaviate Console.
Additional information​
If the distance metric is cosine
you can also use certainty
instead of
distance
. Certainty normalizes the distance in a range of 0..1, where 0
represents a perfect opposite (cosine distance of 2) and 1 represents vectors
with an identical angle (cosine distance of 0). Certainty is not available on
non-cosine distance metrics.
nearObject​
This filter allows you to find data objects in the vicinity of other data objects by UUID. It's supported by the Get{}
function.
- Note: You cannot use multiple
near<Media>
arguments, or anear<Media>
argument along with anask
argument. - Note: You can specify an object's
id
orbeacon
in the argument, along with a desiredcertainty
. - Note that the first result will always be the object in the filter itself.
- Near object search can also be combined with
text2vec
modules.
Variables​
Variables | Mandatory | Type | Description |
---|---|---|---|
id | yes | UUID | Data object identifier in the uuid format. |
beacon | yes | url | Data object identifier in the beacon URL format. E.g., weaviate://<hostname>/<kind>/id . |
distance | no | float | The required degree of similarity between an object's characteristics and the provided filter values. Can't be used together with the certainty variable. The interpretation of the value of the distance field depends on the distance metric used. |
certainty | no | float | Normalized Distance between the result item and the search vector. Normalized to be between 0 (identical vectors) and 1 (perfect opposite).. Can't be used together with the distance variable. |
Example​
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get{
Publication(
nearObject: {
id: "e5dc4a4c-ef0f-3aed-89a3-a73435c6bbcf", # or weaviate://localhost/e5dc4a4c-ef0f-3aed-89a3-a73435c6bbcf
distance: 0.6 # prior to v1.14, use certainty: 0.7
}
){
name
_additional {
certainty # only works if distance==cosine
distance # always works
}
}
}
}
import weaviate
client = weaviate.Client("http://localhost:8080")
nearObject = {"id": "e5dc4a4c-ef0f-3aed-89a3-a73435c6bbcf"} # or {"beacon": "weaviate://localhost/e5dc4a4c-ef0f-3aed-89a3-a73435c6bbcf"}
result = (
client.query
.get("Publication", "name")
.with_additional("distance") # "certainty" only supported if distance==cosine
.with_near_object(nearObject)
.do()
)
print(result)
const weaviate = require('weaviate-client');
const client = weaviate.client({
scheme: 'http',
host: 'localhost:8080',
});
client.graphql
.get()
.withClassName('Publication')
.withFields('name _additional {certainty distance}}') # certainty only supported if distance==cosine
.withNearObject({id: 'e5dc4a4c-ef0f-3aed-89a3-a73435c6bbcf'})
.do()
.then(res => {
console.log(res)
})
.catch(err => {
console.error(err)
});
package main
import (
"context"
"fmt"
"github.com/weaviate/weaviate-go-client/v4/weaviate"
"github.com/weaviate/weaviate-go-client/v4/weaviate/graphql"
)
func main() {
cfg := weaviate.Config{
Host: "localhost:8080",
Scheme: "http",
}
client := weaviate.New(cfg)
className := "Publication"
fields := []graphql.Field{
{Name: "name"},
{Name: "_additional", Fields: []graphql.Field{
{Name: "certainty"}, // certainty only supported if distance==cosine
{Name: "distance"}, // distance always supported
}},
}
nearObject := client.GraphQL().NearObjectArgBuilder().WithID("e5dc4a4c-ef0f-3aed-89a3-a73435c6bbcf")
ctx := context.Background()
result, err := client.GraphQL().Get().
WithClassName(className).
WithFields(fields...).
WithNearObject(nearObject).
Do(ctx)
if err != nil {
panic(err)
}
fmt.Printf("%v", result)
}
package technology.semi.weaviate;
import technology.semi.weaviate.client.Config;
import technology.semi.weaviate.client.WeaviateClient;
import technology.semi.weaviate.client.base.Result;
import technology.semi.weaviate.client.v1.graphql.model.GraphQLResponse;
import technology.semi.weaviate.client.v1.graphql.query.argument.NearObjectArgument;
import technology.semi.weaviate.client.v1.graphql.query.fields.Field;
public class App {
public static void main(String[] args) {
Config config = new Config("http", "localhost:8080");
WeaviateClient client = new WeaviateClient(config);
String className = "Publication";
Field name = Field.builder().name("name").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{
Field.builder().name("certainty").build(), // only supported if distance==cosine
Field.builder().name("distance").build() // always supported
}).build();
NearObjectArgument nearObject = client.graphQL().arguments().nearObjectArgBuilder()
.id("e5dc4a4c-ef0f-3aed-89a3-a73435c6bbcf")
.build();
Result<GraphQLResponse> result = client.graphQL().get()
.withClassName(className)
.withFields(name, _additional)
.withNearObject(nearObject)
.run();
if (result.hasErrors()) {
System.out.println(result.getError());
return;
}
System.out.println(result.getResult());
}
}
$ echo '{
"query": "{
Get{
Publication(
nearObject: {
id: "e5dc4a4c-ef0f-3aed-89a3-a73435c6bbcf",
distance: 0.6 # prior to v1.14 use certainty instead of distance
}
){
name
_additional {
certainty # only supported if distance==cosine
distance # always supported
}
}
}
}"
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
🟢 Try out this GraphQL example in the Weaviate Console.
hybrid​
This filter allows you to combine dense and sparse vectors to get the best of both search methods. It's supported by the Get{}
function.
Variables | Mandatory | Description |
---|---|---|
hybrid | yes | need to specify that you want to use hybrid search |
query | yes | search query |
alpha | no (default is set to 0.75) | weighting for each search algorithm |
vector | no | optional to supply your own vector |
score | no | ranked score that is assigned to each document |
- Note:
alpha
can be any number from 0 to 1- If
alpha
= 0, it is using a pure sparse search method - If
alpha
= 1, it is using a pure vector search method - If
alpha
= 0.5, it is weighing the sparse and vector method evenly
- If
Example​
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get {
Article (
hybrid: {
query: "Fisherman that catches salmon"
alpha: 0.5
})
{
title
summary
_additional {score}
}
}
}
result = (
client.query
.get("Article", ["title", "summary"])
.with_hybrid("Fisherman that catches salmon", alpha=0.5)
.do()
)
client.graphql
.get()
.withClassName('Article')
.withFields('title summary _additional{score}')
.withHybrid({
query: 'Fisherman that catches salmon'
alpha: 0.5, // optional, defaults to 0.75
}
})
.do()
.then(console.log)
.catch(console.error);
hybrid := &HybridArgumentBuilder{}
hybrid.WithQuery("Fisherman that catches salmon").WithAlpha(0.5)
query := builder.WithClassName("Article").WithHybrid(hybrid).build()
HybridArgument hybrid = client.graphQL().arguments().HybridArgBuilder()
.query("Fisherman that catches salmon")
.alpha(0.5f)
.build();
Field name = Field.builder().name("title" "summary").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{Field.builder().name("id").build()})
.build();
// when
testGenerics.createTestSchemaAndData(client);
Result<GraphQLResponse> result = client.graphQL().get().withClassName("Article")
.withHybrid(hybrid)
.withFields(name, _additional).run();
$ echo '{
"query": "{
{
Get {
Article(
hybrid: {
query: "Fisherman that catches salmon"
alpha: 0.5
})
{
title
summary
_additional {score}
}
}
}
}"
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
🟢 Try out this GraphQL example in the Weaviate Console.
Example with vector parameter​
If you're providing your own embeddings, you can add the vector query to the vector
parameter. If Weaviate is handling the vectorization, then you can ignore the vector
parameter and use the example code snippets above.
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get {
Article (
hybrid: {
query: "Fisherman that catches salmon"
alpha: 0.5
vector: [1, 2, 3] # optional. Not needed if Weaviate handles the vectorization. If you provide your own embeddings, put the vector query here.
})
{
title
summary
_additional {score}
}
}
}
result = (
client.query
.get("Article", ["title", "summary"])
.with_hybrid("Fisherman that catches salmon", alpha=0.5, vector=[1, 2, 3])
.do()
)
client.graphql
.get()
.withClassName('Article')
.withFields('title summary _additional{score}')
.withHybrid({
query: 'Fisherman that catches salmon',
vector: [1, 2, 3] // optional. Not needed if weaviate handles the vectorization.
alpha: 0.5, // optional, defaults to 0.75
}
})
.do()
.then(console.log)
.catch(console.error);
hybrid := &HybridArgumentBuilder{}
hybrid.WithQuery("Fisherman that catches salmon").WithVector(1, 2, 3).WithAlpha(0.5)
query := builder.WithClassName("Article").WithHybrid(hybrid).build()
HybridArgument hybrid = client.graphQL().arguments().HybridArgBuilder()
.query("Fisherman that catches salmon")
.vector(Float[]{1f,2f,3f})
.alpha(0.5f)
.build();
Field name = Field.builder().name("title" "summary").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{Field.builder().name("id").build()})
.build();
// when
testGenerics.createTestSchemaAndData(client);
Result<GraphQLResponse> result = client.graphQL().get().withClassName("Article")
.withHybrid(hybrid)
.withFields(name, _additional).run();
$ echo '{
"query": "{
{
Get {
Article(
hybrid: {
query: "Fisherman that catches salmon"
alpha: 0.5
vector: [1, 2, 3] # Optional. Not needed if Weaviate handles the vectorization. If you provide your own embeddings, put the vector query here.
})
{
title
summary
_additional {score}
}
}
}
}"
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
bm25​
The bm25
operator performs a keyword (sparse vector) search, and uses the BM25F ranking function to score the results. BM25F (Best Match 25 with Extension to Multiple Weighted Fields) is an extended version of BM25 that applies the scoring algorithm to multiple fields (properties
), producing better results.
The search is case-insensitive, and case matching does not confer a score advantage. Stop words are removed. Stemming is not supported yet.
Schema configuration​
The settings for BM25 are the free parameters k1
and b
, and they are optional. The defaults (k1
= 1.2 and b
= 0.75) work well for most cases. If necessary, they can be configured in the schema per class, and can optionally be overridden per property:
{
"class": "string",
"sparseIndexType": "bm25f",
// Configuration of the sparse index
"sparseIndexConfig": {
"bm25f": {
"b": 0.75,
"k1": 1.2
}
},
"properties": [
{
"name": "string",
"description": "string",
"dataType": [
"string"
],
// Property-level settings override the class-level settings
"sparseIndexConfig": {
"bm25f": {
"b": 0.75,
"k1": 1.2
}
},
"indexInverted": true
}
]
}
Variables​
The bm25
operator supports two variables:
query
(mandatory) - the keyword search queryproperties
(optional) - array of properties (fields) to search in, defaulting to all properties in the class. Specific properties can be boosted by a factor specified as a number after the caret sign, for exampleproperties: ["title^3", "description"]
.
Example query​
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get {
Article(
bm25: {
query: ["fox"],
properties: ["title"]
}
) {
title
_additional {
score
}
}
}
}
import weaviate
client = weaviate.Client("http://localhost:8080")
bm25 = {
"query": ["fox"],
"properties": ["title"], # by default, all properties are searched
}
result = (
client.query
.get("Article", ["title", "_additional {score} "])
.with_bm25(bm25)
.do()
)
print(result)
const weaviate = require('weaviate-client');
const client = weaviate.client({
scheme: 'http',
host: 'localhost:8080',
});
client.graphql
.get()
.withClassName('Article')
.withFields('title _additional{score}')
.withBm25({
query: 'fox',
properties: ['title'],
})
.do()
.then(console.log)
.catch(console.error);
package main
import (
"context"
"fmt"
"github.com/weaviate/weaviate-go-client/v4/weaviate"
"github.com/weaviate/weaviate-go-client/v4/weaviate/graphql"
)
func main() {
cfg := weaviate.Config{
Host: "localhost:8080",
Scheme: "http",
}
client := weaviate.New(cfg)
className := "Article"
title := graphql.Field{Name: "title"}
_additional := graphql.Field{
Name: "_additional", Fields: []graphql.Field{
{Name: "score"},
},
}
query := string{"fox"}
properties: []string{"title"},
bm25 := client.GraphQL().Bm25ArgBuilder().
WithQuery(query).
WithProperties(properties)
ctx := context.Background()
result, err := client.GraphQL().Get().
WithClassName(className).
WithFields(title, _additional).
WithBm25(bm25).
Do(ctx)
if err != nil {
panic(err)
}
fmt.Printf("%v", result)
}
package technology.semi.weaviate;
import technology.semi.weaviate.client.Config;
import technology.semi.weaviate.client.WeaviateClient;
import technology.semi.weaviate.client.base.Result;
import technology.semi.weaviate.client.v1.graphql.model.GraphQLResponse;
import technology.semi.weaviate.client.v1.graphql.query.argument.Bm25Argument;
import technology.semi.weaviate.client.v1.graphql.query.fields.Field;
public class App {
public static void main(String[] args) {
Config config = new Config("http", "localhost:8080");
WeaviateClient client = new WeaviateClient(config);
Bm25Argument bm25 = client.graphQL().arguments().bm25ArgBuilder()
.query(new String("fox"))
.properties(new String[]{ "title" })
.build();
Field title = Field.builder().name("title").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{
Field.builder().name("score").build()
}).build();
Result<GraphQLResponse> result = client.graphQL().get()
.withClassName("Article")
.withFields(title, _additional)
.withBm25(bm25)
.run();
if (result.hasErrors()) {
System.out.println(result.getError());
return;
}
System.out.println(result.getResult());
}
}
$ echo '{
"query": "{
Get {
Article(
bm25: {
query: \"fox\",
properties: [\"title\"],
}
) {
title
_additional {
score
}
}
}
}"
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
🟢 Try out this GraphQL example in the Weaviate Console.
GraphQL response​
The _additional
object in the GraphQL result exposes the score:
{
"_additional": {
"score": "5.3201",
"distance": null, // always null
"certainty": null // always null
}
}
Example response​
{
"data": {
"Get": {
"Article": [
{
"_additional": {
"certainty": null,
"distance": null,
"score": "3.4985464"
},
"title": "Tim Dowling: is the dog’s friendship with the fox sweet – or a bad omen?"
}
]
}
},
"errors": null
}
group​
You can use a group operator to combine similar concepts (aka entity merging). There are two ways of grouping objects with a semantic similarity together.
Variables​
Variables | Mandatory | Type | Description |
---|---|---|---|
type | yes | string | You can only show the closest concept (closest ) or merge all similar entities into one single string (merge ). |
force | yes | float | The force to apply for a particular movements. Must be between 0 and 1 where 0 is equivalent to no movement and 1 is equivalent to largest movement possible. |
Example​
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get {
Publication(
group:{
type: merge,
force:0.05
}
) {
name
}
}
}
import weaviate
client = weaviate.Client("http://localhost:8080")
get_articles_group = """
{
Get {
Publication(
group:{
type: merge,
force:0.05
}
) {
name
}
}
}
"""
query_result = client.query.raw(get_articles_group)
print(query_result)
const weaviate = require('weaviate-client');
const client = weaviate.client({
scheme: 'http',
host: 'localhost:8080',
});
client.graphql
.get()
.withClassName('Publication')
.withFields('name')
.withGroup({
type: 'merge',
force: 0.05
})
.do()
.then(res => {
console.log(res)
})
.catch(err => {
console.error(err)
});
package main
import (
"context"
"fmt"
"github.com/weaviate/weaviate-go-client/v4/weaviate"
"github.com/weaviate/weaviate-go-client/v4/weaviate/graphql"
)
func main() {
cfg := weaviate.Config{
Host: "localhost:8080",
Scheme: "http",
}
client := weaviate.New(cfg)
name := graphql.Field{Name: "name"}
group := client.GraphQL().GroupArgBuilder().WithType(graphql.Merge).WithForce(0.05)
result, err := client.GraphQL().Get().
WithClassName("Publication").
WithFields(name).
WithGroup(group).
Do(context.Background())
if err != nil {
panic(err)
}
fmt.Printf("%v", result)
}
package technology.semi.weaviate;
import technology.semi.weaviate.client.Config;
import technology.semi.weaviate.client.WeaviateClient;
import technology.semi.weaviate.client.base.Result;
import technology.semi.weaviate.client.v1.graphql.model.GraphQLResponse;
import technology.semi.weaviate.client.v1.graphql.query.argument.GroupArgument;
import technology.semi.weaviate.client.v1.graphql.query.argument.GroupType;
import technology.semi.weaviate.client.v1.graphql.query.fields.Field;
public class App {
public static void main(String[] args) {
Config config = new Config("http", "localhost:8080");
WeaviateClient client = new WeaviateClient(config);
Field name = Field.builder().name("name").build();
GroupArgument group = GroupArgument.builder()
.type(GroupType.merge)
.force(0.05f)
.build();
Result<GraphQLResponse> result = client.graphQL().get()
.withClassName("Publication")
.withFields(name)
.withGroup(group)
.run();
if (result.hasErrors()) {
System.out.println(result.getError());
return;
}
System.out.println(result.getResult());
}
}
$ echo '{
"query": "{
Get {
Publication(
group:{
type: merge,
force:0.05
}
) {
name
}
}
}"
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
This results in the following. Note that publications International New York Times
, The New York Times Company
and New York Times
are merged. The property values that do not have an exact overlap will all be shown, with the value of the most central concept before the brackets.
{
"data": {
"Get": {
"Publication": [
{
"name": "Vogue"
},
{
"name": "Wired"
},
{
"name": "Financial Times"
},
{
"name": "New Yorker"
},
{
"name": "The Economist"
},
{
"name": "International New York Times (The New York Times Company, New York Times)"
},
{
"name": "Wall Street Journal"
},
{
"name": "CNN"
},
{
"name": "Game Informer"
},
{
"name": "The Guardian"
},
{
"name": "Fox News"
}
]
}
},
"errors": null
}
Module specific parameters​
Module specific search parameters are made available in certain Weaviate modules.​
nearText​
Enabled by the modules: text2vec-openai, text2vec-transformers, text2vec-contextionary.
This filter allows you to find data objects in the vicinity of the vector representation of a single or multiple concepts. It's supported by the Get{}
function.
Variables​
Variables | Mandatory | Type | Description |
---|---|---|---|
concepts | yes | [string] | An array of strings, this can be natural language queries or single words. If multiple strings are used, a centroid is calculated and used. Learn more about how the concepts are parsed here |
certainty | no | float | The required degree of similarity between an object's characteristics and the provided filter values. Values can be between 0 (no match) and 1 (perfect match). Can't be used together with the distance variable. |
distance | no | float | Normalized Distance between the result item and the search vector. The interpretation of the value of the distance field depends on the distance metric used. Can't be used together with the certainty variable. |
autocorrect | no | boolean | Autocorrect input text values |
moveTo | no | object{} | Move your search term closer to another vector described by keywords |
moveTo{concepts} | no | [string] | An array of strings, this can be natural language queries or single words. If multiple strings are used, a centroid is calculated and used. |
moveTo{objects} | no | [UUID] | Object IDs to move the results to. This is used to "bias" NLP search results into a certain direction in vector space |
moveTo{force} | no | float | The force to apply for a particular movements. Must be between 0 and 1 where 0 is equivalent to no movement and 1 is equivalent to largest movement possible |
moveAwayFrom | no | object{} | Move your search term away from another vector described by keywords |
moveAwayFrom{concepts} | no | [string] | An array of strings, this can be natural language queries or single words. If multiple strings are used, a centroid is calculated and used. |
moveAwayFrom{objects} | no | [UUID] | Object IDs to move the results to. This is used to "bias" NLP search results into a certain direction in vector space |
moveAwayFrom{force} | no | float | The force to apply for a particular movements. Must be between 0 and 1 where 0 is equivalent to no movement and 1 is equivalent to largest movement possible |
Example I​
This example shows a basic overview of using the nearText
filter.
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get{
Publication(
nearText: {
concepts: ["fashion"],
distance: 0.6 # prior to v1.14 use "certainty" instead of "distance"
moveAwayFrom: {
concepts: ["finance"],
force: 0.45
},
moveTo: {
concepts: ["haute couture"],
force: 0.85
}
}
){
name
_additional {
certainty # only supported if distance==cosine.
distance # always supported
}
}
}
}
import weaviate
client = weaviate.Client("http://localhost:8080")
nearText = {
"concepts": ["fashion"],
"distance": 0.6, # prior to v1.14 use "certainty" instead of "distance"
"moveAwayFrom": {
"concepts": ["finance"],
"force": 0.45
},
"moveTo": {
"concepts": ["haute couture"],
"force": 0.85
}
}
result = (
client.query
.get("Publication", "name")
.with_additional("certainty OR distance"]) # note that certainty is only supported if distance==cosine
.with_near_text(nearText)
.do()
)
print(result)
const weaviate = require('weaviate-client');
const client = weaviate.client({
scheme: 'http',
host: 'localhost:8080',
});
client.graphql
.get()
.withClassName('Publication')
.withFields('name _additional{certainty distance}') // note that certainty is only supported if distance==cosine
.withNearText({
concepts: ['fashion'],
distance: 0.6, // prior to v1.14 use certainty instead of distance
moveAwayFrom: {
concepts: ['finance'],
force: 0.45
},
moveTo: {
concepts: ['haute couture'],
force: 0.85
}
})
.do()
.then(console.log)
.catch(console.error);
package main
import (
"context"
"fmt"
"github.com/weaviate/weaviate-go-client/v4/weaviate"
"github.com/weaviate/weaviate-go-client/v4/weaviate/graphql"
)
func main() {
cfg := weaviate.Config{
Host: "localhost:8080",
Scheme: "http",
}
client := weaviate.New(cfg)
className := "Publication"
name := graphql.Field{Name: "name"}
_additional := graphql.Field{
Name: "_additional", Fields: []graphql.Field{
{Name: "certainty"}, // only supported if distance==cosine
{Name: "distance"}, // always supported
},
}
concepts := []string{"fashion"}
distance := float32(0.6)
moveAwayFrom := &graphql.MoveParameters{
Concepts: []string{"finance"},
Force: 0.45,
}
moveTo := &graphql.MoveParameters{
Concepts: []string{"haute couture"},
Force: 0.85,
}
nearText := client.GraphQL().NearTextArgBuilder().
WithConcepts(concepts).
WithDistance(distance). // use WithCertainty(certainty) prior to v1.14
WithMoveTo(moveTo).
WithMoveAwayFrom(moveAwayFrom)
ctx := context.Background()
result, err := client.GraphQL().Get().
WithClassName(className).
WithFields(name, _additional).
WithNearText(nearText).
Do(ctx)
if err != nil {
panic(err)
}
fmt.Printf("%v", result)
}
package technology.semi.weaviate;
import technology.semi.weaviate.client.Config;
import technology.semi.weaviate.client.WeaviateClient;
import technology.semi.weaviate.client.base.Result;
import technology.semi.weaviate.client.v1.graphql.model.GraphQLResponse;
import technology.semi.weaviate.client.v1.graphql.query.argument.NearTextArgument;
import technology.semi.weaviate.client.v1.graphql.query.argument.NearTextMoveParameters;
import technology.semi.weaviate.client.v1.graphql.query.fields.Field;
public class App {
public static void main(String[] args) {
Config config = new Config("http", "localhost:8080");
WeaviateClient client = new WeaviateClient(config);
NearTextMoveParameters moveTo = NearTextMoveParameters.builder()
.concepts(new String[]{ "haute couture" }).force(0.85f).build();
NearTextMoveParameters moveAway = NearTextMoveParameters.builder()
.concepts(new String[]{ "finance" }).force(0.45f)
.build();
NearTextArgument nearText = client.graphQL().arguments().nearTextArgBuilder()
.concepts(new String[]{ "fashion" })
.distance(0.6f) // use .certainty(0.7f) prior to v1.14
.moveTo(moveTo)
.moveAwayFrom(moveAway)
.build();
Field name = Field.builder().name("name").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{
Field.builder().name("certainty").build(), // only supported if distance==cosine
Field.builder().name("distance").build(), // always supported
}).build();
Result<GraphQLResponse> result = client.graphQL().get()
.withClassName("Publication")
.withFields(name, _additional)
.withNearText(nearText)
.run();
if (result.hasErrors()) {
System.out.println(result.getError());
return;
}
System.out.println(result.getResult());
}
}
$ echo '{
"query": "{
Get{
Publication(
nearText: {
concepts: [\"fashion\"],
distance: 0.6, // use certainty instead of distance prior to v1.14
moveAwayFrom: {
concepts: [\"finance\"],
force: 0.45
},
moveTo: {
concepts: [\"haute couture\"],
force: 0.85
}
}
){
name
_additional {
certainty // only supported if distance==cosine
distance // always supported
}
}
}
}"
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
🟢 Try out this GraphQL example in the Weaviate Console.
Example II​
You can also bias results toward other data objects' vector representations. For example, in this dataset, we have an ambiguous query on our news article dataset, which we bias towards an article called: "Tohoku: A Japan destination for all seasons."
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get{
Article(
nearText: {
concepts: ["traveling in Asia"],
certainty: 0.7,
moveTo: {
objects: [{
# this ID is of the article:
# "Tohoku: A Japan destination for all seasons."
id: "2faf2b7d-f185-30c0-8c80-a01b7cfeefb4"
}]
force: 0.85
}
}
){
title
summary
_additional {
certainty
}
}
}
}
import weaviate
client = weaviate.Client("http://localhost:8080")
nearText = {
"concepts": ["traveling in Asia"],
"certainty": 0.7,
"moveTo": {
"objects": [{"id": "2faf2b7d-f185-30c0-8c80-a01b7cfeefb4"}],
"force": 0.85
}
}
result = (
client.query
.get("Article", ["title", "summary", "_additional { certainty }"])
.with_near_text(nearText)
.do()
)
print(result)
const weaviate = require('weaviate-client');
const client = weaviate.client({
scheme: 'http',
host: 'localhost:8080',
});
client.graphql
.get()
.withClassName('Article')
.withFields('title summary _additional { certainty }')
.withNearText({
concepts: ['traveling in Asia'],
certainty: 0.7,
moveTo: {
// this ID is of the article: "Tohoku: A Japan destination for all seasons."
objects: [{ id: '2faf2b7d-f185-30c0-8c80-a01b7cfeefb4' }],
force: 0.85
}
})
.do()
.then(console.log)
.catch(console.error);
package main
import (
"context"
"fmt"
"github.com/weaviate/weaviate-go-client/v4/weaviate"
"github.com/weaviate/weaviate-go-client/v4/weaviate/graphql"
)
func main() {
cfg := weaviate.Config{
Host: "localhost:8080",
Scheme: "http",
}
client := weaviate.New(cfg)
className := "Article"
title := graphql.Field{Name: "title"}
summary := graphql.Field{Name: "summary"}
_additional := graphql.Field{
Name: "_additional", Fields: []graphql.Field{
{Name: "certainty"},
},
}
concepts := []string{"traveling in Asia"}
certainty := float32(0.7)
moveTo := &graphql.MoveParameters{
Objects: []graphql.MoverObject{
// this ID is of the article: "Tohoku: A Japan destination for all seasons."
{ID: "2faf2b7d-f185-30c0-8c80-a01b7cfeefb4"},
},
Force: 0.85,
}
nearText := client.GraphQL().NearTextArgBuilder().
WithConcepts(concepts).
WithCertainty(certainty).
WithMoveTo(moveTo)
ctx := context.Background()
result, err := client.GraphQL().Get().
WithClassName(className).
WithFields(title, summary, _additional).
WithNearText(nearText).
Do(ctx)
if err != nil {
panic(err)
}
fmt.Printf("%v", result)
}
package technology.semi.weaviate;
import technology.semi.weaviate.client.Config;
import technology.semi.weaviate.client.WeaviateClient;
import technology.semi.weaviate.client.base.Result;
import technology.semi.weaviate.client.v1.graphql.model.GraphQLResponse;
import technology.semi.weaviate.client.v1.graphql.query.argument.NearTextArgument;
import technology.semi.weaviate.client.v1.graphql.query.argument.NearTextMoveParameters;
import technology.semi.weaviate.client.v1.graphql.query.fields.Field;
public class App {
public static void main(String[] args) {
Config config = new Config("http", "localhost:8080");
WeaviateClient client = new WeaviateClient(config);
NearTextMoveParameters moveTo = NearTextMoveParameters.builder()
.objects(new NearTextMoveParameters.ObjectMove[]{
// this ID is of the article: "Tohoku: A Japan destination for all seasons."
NearTextMoveParameters.ObjectMove.builder().id("2faf2b7d-f185-30c0-8c80-a01b7cfeefb4").build()
})
.force(0.85f)
.build();
NearTextArgument nearText = client.graphQL().arguments().nearTextArgBuilder()
.concepts(new String[]{ "traveling in Asia" })
.certainty(0.7f)
.moveTo(moveTo)
.build();
Field title = Field.builder().name("title").build();
Field summary = Field.builder().name("summary").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{
Field.builder().name("certainty").build(),
}).build();
Result<GraphQLResponse> result = client.graphQL().get()
.withClassName("Article")
.withFields(title, summary, _additional)
.withNearText(nearText)
.run();
if (result.hasErrors()) {
System.out.println(result.getError());
return;
}
System.out.println(result.getResult());
}
}
$ echo '{
Get{
Article(
nearText: {
concepts: [\"traveling in Asia\"],
certainty: 0.7,
moveTo: {
objects: [{
# this ID is of the article:
# "Tohoku: A Japan destination for all seasons."
id: \"2faf2b7d-f185-30c0-8c80-a01b7cfeefb4\"
}]
force: 0.85
}
}
){
title
summary
_additional {
certainty
}
}
}
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
🟢 Try out this GraphQL example in the Weaviate Console.
Additional information​
Distance metrics​
If the distance metric is cosine
you can also use certainty
instead of
distance
. Certainty normalizes the distance in a range of 0..1, where 0
represents a perfect opposite (cosine distance of 2) and 1 represents vectors
with an identical angle (cosine distance of 0). Certainty is not available on
non-cosine distance metrics.
Concept parsing​
Strings written in the concepts array are your fuzzy search terms. An array of concepts is required to set in the Explore query, and all words in this array should be present in the Contextionary.
There are three ways to define the concepts array argument in the filter.
["New York Times"]
= one vector position is determined based on the occurrences of the words["New", "York", "Times"]
= all concepts have a similar weight.["New York", "Times"]
= a combination of the two above.
A practical example would be: concepts: ["beatles", "John Lennon"]
Semantic Path​
- Only available in
txt2vec-contextionary
module
The semantic path returns an array of concepts from the query to the data object. This allows you to see which steps Weaviate took and how the query and data object are interpreted.
| Property | Description |
| concept
| the concept that is found in this step. |
| distanceToNext
| the distance to the next step (null for the last step). |
| distanceToPrevious
| this distance to the previous step (null for the first step). |
| distanceToQuery
| the distance of this step to the query. |
| distanceToResult
| the distance of the step to this result. |
Note: Building a semantic path is only possible if a nearText: {}
filter is set as the explore term represents the beginning of the path and each search result represents the end of the path. Since nearText: {}
queries are currently exclusively possible in GraphQL, the semanticPath
is therefore not available in the REST API.
Example: showing a semantic path without edges.
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get {
Publication (
nearText:{
concepts: ["fashion"],
distance: 0.6, #prior to v1.14 use certainty: 0.7
moveAwayFrom: {
concepts: ["finance"],
force: 0.45
},
moveTo: {
concepts: ["haute couture"],
force: 0.85
}
}
) {
name
_additional {
semanticPath{
path {
concept
distanceToNext
distanceToPrevious
distanceToQuery
distanceToResult
}
}
}
}
}
}
import weaviate
client = weaviate.Client("http://localhost:8080")
near_text_filter = {
"concepts": ["fashion"],
"distance": 0.6, #prior to v1.14 use certainty: 0.7
"moveAwayFrom": {
"concepts": ["finance"],
"force": 0.45
},
"moveTo": {
"concepts": ["haute couture"],
"force": 0.85
}
}
additional_props = {
"semanticPath": "path {distanceToNext distanceToPrevious distanceToQuery distanceToResult}"
}
query_result = (
client.query
.get("Publication", "name")
.with_additional(additional_props)
.with_near_text(near_text_filter)
.do()
)
print(query_result)
const weaviate = require('weaviate-client');
const client = weaviate.client({
scheme: 'http',
host: 'localhost:8080',
});
client.graphql
.get()
.withClassName('Publication')
.withFields('name _additional { semanticPath{ path {concept distanceToNext distanceToPrevious distanceToQuery distanceToResult}}}')
.withNearText({
concepts: ['fashion'],
distance: 0.6, #prior to v1.14 use certainty: 0.7
moveAwayFrom: {
concepts: ['finance'],
force: 0.45
},
moveTo: {
concepts: ['haute couture'],
force: 0.85
}
})
.do()
.then(res => {
console.log(res)
})
.catch(err => {
console.error(err)
});
package main
import (
"context"
"fmt"
"github.com/weaviate/weaviate-go-client/v4/weaviate"
"github.com/weaviate/weaviate-go-client/v4/weaviate/graphql"
)
func main() {
cfg := weaviate.Config{
Host: "localhost:8080",
Scheme: "http",
}
client := weaviate.New(cfg)
className := "Publication"
fields := []graphql.Field{
{Name: "name"},
{Name: "_additional", Fields: []graphql.Field{
{Name: "semanticPath", Fields: []graphql.Field{
{Name: "path", Fields: []graphql.Field{
{Name: "concept"},
{Name: "distanceToNext"},
{Name: "distanceToPrevious"},
{Name: "distanceToQuery"},
{Name: "distanceToResult"},
}},
}},
}},
}
concepts := []string{"fashion"}
moveTo := &graphql.MoveParameters{
Concepts: []string{"haute couture"},
Force: 0.85,
}
moveAwayFrom := &graphql.MoveParameters{
Concepts: []string{"finance"},
Force: 0.45,
}
nearText := client.GraphQL().NearTextArgBuilder().
WithConcepts(concepts).
WithDistance(0.6). // prior to v1.14, use WithCertainty(0.7)
WithMoveTo(moveTo).
WithMoveAwayFrom(moveAwayFrom)
ctx := context.Background()
result, err := client.GraphQL().Get().
WithClassName(className).
WithFields(fields...).
WithNearText(nearText).
Do(ctx)
if err != nil {
panic(err)
}
fmt.Printf("%v", result)
}
package technology.semi.weaviate;
import technology.semi.weaviate.client.Config;
import technology.semi.weaviate.client.WeaviateClient;
import technology.semi.weaviate.client.base.Result;
import technology.semi.weaviate.client.v1.graphql.model.GraphQLResponse;
import technology.semi.weaviate.client.v1.graphql.query.argument.NearTextArgument;
import technology.semi.weaviate.client.v1.graphql.query.argument.NearTextMoveParameters;
import technology.semi.weaviate.client.v1.graphql.query.fields.Field;
public class App {
public static void main(String[] args) {
Config config = new Config("http", "localhost:8080");
WeaviateClient client = new WeaviateClient(config);
Field name = Field.builder().name("name").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{
Field.builder()
.name("semanticPath")
.fields(new Field[]{
Field.builder()
.name("path")
.fields(new Field[]{
Field.builder().name("concept").build(),
Field.builder().name("distanceToNext").build(),
Field.builder().name("distanceToPrevious").build(),
Field.builder().name("distanceToQuery").build(),
Field.builder().name("distanceToResult").build()
})
.build()
}).build()
}).build();
NearTextMoveParameters moveTo = NearTextMoveParameters.builder()
.concepts(new String[]{ "haute couture" }).force(0.85f).build();
NearTextMoveParameters moveAway = NearTextMoveParameters.builder()
.concepts(new String[]{ "finance" }).force(0.45f)
.build();
NearTextArgument explore = client.graphQL().arguments().nearTextArgBuilder()
.concepts(new String[]{ "fashion" })
.distance(0.6f) // prior to v1.14, use .certainty(0.7f)
.moveTo(moveTo)
.moveAwayFrom(moveAway)
.build();
Result<GraphQLResponse> result = client.graphQL().get()
.withClassName("Publication")
.withFields(name, _additional)
.withNearText(explore)
.run();
if (result.hasErrors()) {
System.out.println(result.getError());
return;
}
System.out.println(result.getResult());
}
}
$ echo '{
"query": "{
Get {
Publication (
nearText:{
concepts: [\"fashion\"],
distance: 0.6, #prior to v1.14 use certainty: 0.7
moveAwayFrom: {
concepts: [\"finance\"],
force: 0.45
},
moveTo: {
concepts: [\"haute couture\"],
force: 0.85
}
}
) {
name
_additional {
semanticPath{
path {
concept
distanceToNext
distanceToPrevious
distanceToQuery
distanceToResult
}
}
}
}
}
}"
}' | curl \
-X POST \
-H 'Content-Type: application/json' \
-d @- \
http://localhost:8080/v1/graphql
Ask​
Enabled by the module: Question Answering.
This filter allows you to return answers to questions by running the results through a Q&A model.
Variables​
Variables | Mandatory | Type | Description |
---|---|---|---|
question | yes | string | The question to be answered. |
certainty | no | float | Desired minimal certainty or confidence of answer to the question. The higher the value, the stricter the search becomes. The lower the value, the fuzzier the search becomes. If no certainty is set, any answer that could be extracted will be returned |
properties | no | [string] | The properties of the queries Class which contains text. If no properties are set, all are considered. |
rerank | no | boolean | If enabled, the qna module will rerank the result based on the answer score. For example, if the 3rd result - as determined by the previous (semantic) search contained the most likely answer, result 3 will be pushed to position 1, etc. Not supported prior to v1.10.0 |
Example​
- GraphQL
- Python
- JavaScript
- Go
- Java
- Curl
{
Get {
Article(
ask: {
question: "Who is the king of the Netherlands?",
properties: ["summary"],
rerank: false # supported from v1.10.0 on
},
limit: 1
) {
title
_additional {
answer {
hasAnswer
certainty
property
result
startPosition
endPosition
}
}
}
}
}
import weaviate
client = weaviate.Client("http://localhost:8080")
ask = {
"question": "Who is the king of the Netherlands?",
"properties": ["summary"]
}
result = (
client.query
.get("Article", ["title", "_additional {answer {hasAnswer certainty property result startPosition endPosition} }"])
.with_ask(ask)
.with_limit(1)
.do()
)
print(result)
const weaviate = require('weaviate-client');
const client = weaviate.client({
scheme: 'http',
host: 'localhost:8080',
});
client.graphql
.get()
.withClassName('Article')
.withAsk({
question: 'Who is the king of the Netherlands?',
properties: ['summary'],
})
.withFields('title _additional { answer { hasAnswer certainty property result startPosition endPosition } }')
.withLimit(1)
.do()
.then(res => {
console.log(res)
})
.catch(err => {
console.error(err)
});
package main
import (
"context"
"fmt"
"github.com/weaviate/weaviate-go-client/v4/weaviate"
"github.com/weaviate/weaviate-go-client/v4/weaviate/graphql"
)
func main() {
cfg := weaviate.Config{
Host: "localhost:8080",
Scheme: "http",
}
client := weaviate.New(cfg)
className := "Article"
fields := []graphql.Field{
{Name: "title"},
{Name: "_additional", Fields: []graphql.Field{
{Name: "answer", Fields: []graphql.Field{
{Name: "hasAnswer"},
{Name: "certainty"},
{Name: "property"},
{Name: "result"},
{Name: "startPosition"},
{Name: "endPosition"},
}},
}},
}
ask := client.GraphQL().AskArgBuilder().
WithQuestion("Who is the king of the Netherlands?").
WithProperties([]string{"summary"})
ctx := context.Background()
result, err := client.GraphQL().Get().
WithClassName(className).
WithFields(fields...).
WithAsk(ask).
WithLimit(1).
Do(ctx)
if err != nil {
panic(err)
}
fmt.Printf("%v", result)
}
package technology.semi.weaviate;
import technology.semi.weaviate.client.Config;
import technology.semi.weaviate.client.WeaviateClient;
import technology.semi.weaviate.client.base.Result;
import technology.semi.weaviate.client.v1.graphql.model.GraphQLResponse;
import technology.semi.weaviate.client.v1.graphql.query.argument.AskArgument;
import technology.semi.weaviate.client.v1.graphql.query.fields.Field;
public class App {
public static void main(String[] args) {
Config config = new Config("http", "localhost:8080");
WeaviateClient client = new WeaviateClient(config);
Field title = Field.builder().name("title").build();
Field _additional = Field.builder()
.name("_additional")
.fields(new Field[]{
Field.builder()
.name("answer")
.fields(new Field[]{
Field.builder().name("hasAnswer").build(),
Field.builder().name("certainty").build(),
Field.builder().name("property").build(),
Field.builder().name("result").build(),
Field.builder().name("startPosition").build(),
Field.builder().name("endPosition").build()
}).build()
}).build();
AskArgument ask = AskArgument.builder()
.question("Who is the king of the Netherlands?")
.properties(new String[]{ "summary" })
.build();
Result<GraphQLResponse> result = client.graphQL().get()
.withClassName("Article")
.withFields(title, _additional)
.withAsk(ask)
.withLimit(1)
.run();
if (result.hasErrors()) {
System.out.println(result.getError());
return;
}
System.out.println(result.getResult());
}
}
$ echo '{
"query": "{
Get {
Article(
ask: {
question: \"Who is the king of the Netherlands?\",
properties: [\"summary\"]
},
limit: 1
) {
title
_additional {
answer {
hasAnswer
certainty