这是indexloc提供的服务，不要输入任何密码
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282 return relevancy score with similarityresponse #304

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Merged
merged 6 commits into from
Oct 30, 2023
Merged

282 return relevancy score with similarityresponse #304

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0103633
include score value in similarityResponse for weaviate
shatfield4 Oct 27, 2023
4b27430
include score value in si
shatfield4 Oct 27, 2023
fdafc70
include score value in si
shatfield4 Oct 27, 2023
29dc228
include score value in similarityResponse for chroma
shatfield4 Oct 27, 2023
744ba66
include score value in similarityResponse for lancedb
shatfield4 Oct 27, 2023
fc65248
distance to similarity
timothycarambat Oct 30, 2023
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8 changes: 8 additions & 0 deletions server/utils/vectorDbProviders/chroma/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,12 @@ const Chroma = {
}
return totalVectors;
},
distanceToSimilarity: function (distance = null) {
if (distance === null || typeof distance !== "number") return 0.0;
if (distance >= 1.0) return 1;
if (distance <= 0) return 0;
return 1 - distance;
},
namespaceCount: async function (_namespace = null) {
const { client } = await this.connect();
const namespace = await this.namespace(client, _namespace);
Expand All @@ -59,6 +65,7 @@ const Chroma = {
const result = {
contextTexts: [],
sourceDocuments: [],
scores: [],
};

const response = await collection.query({
Expand All @@ -68,6 +75,7 @@ const Chroma = {
response.ids[0].forEach((_, i) => {
result.contextTexts.push(response.documents[0][i]);
result.sourceDocuments.push(response.metadatas[0][i]);
result.scores.push(this.distanceToSimilarity(response.distances[0][i]));
});

return result;
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8 changes: 8 additions & 0 deletions server/utils/vectorDbProviders/lance/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,12 @@ const LanceDb = {
const client = await lancedb.connect(this.uri);
return { client };
},
distanceToSimilarity: function (distance = null) {
if (distance === null || typeof distance !== "number") return 0.0;
if (distance >= 1.0) return 1;
if (distance <= 0) return 0;
return 1 - distance;
},
heartbeat: async function () {
await this.connect();
return { heartbeat: Number(new Date()) };
Expand Down Expand Up @@ -54,6 +60,7 @@ const LanceDb = {
const result = {
contextTexts: [],
sourceDocuments: [],
scores: [],
};

const response = await collection
Expand All @@ -66,6 +73,7 @@ const LanceDb = {
const { vector: _, ...rest } = item;
result.contextTexts.push(rest.text);
result.sourceDocuments.push(rest);
result.scores.push(this.distanceToSimilarity(item.score));
});

return result;
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2 changes: 2 additions & 0 deletions server/utils/vectorDbProviders/pinecone/index.js
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Expand Up @@ -41,6 +41,7 @@ const Pinecone = {
const result = {
contextTexts: [],
sourceDocuments: [],
scores: [],
};
const response = await index.query({
queryRequest: {
Expand All @@ -54,6 +55,7 @@ const Pinecone = {
response.matches.forEach((match) => {
result.contextTexts.push(match.metadata.text);
result.sourceDocuments.push(match);
result.scores.push(match.score);
});

return result;
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3 changes: 3 additions & 0 deletions server/utils/vectorDbProviders/qdrant/index.js
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Expand Up @@ -51,11 +51,13 @@ const QDrant = {
const result = {
contextTexts: [],
sourceDocuments: [],
scores: [],
};

const responses = await client.search(namespace, {
vector: queryVector,
limit: 4,
with_payload: true,
});

responses.forEach((response) => {
Expand All @@ -64,6 +66,7 @@ const QDrant = {
...(response?.payload || {}),
id: response.id,
});
result.scores.push(response.score);
});

return result;
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6 changes: 4 additions & 2 deletions server/utils/vectorDbProviders/weaviate/index.js
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Expand Up @@ -77,14 +77,15 @@ const Weaviate = {
const result = {
contextTexts: [],
sourceDocuments: [],
scores: [],
};

const weaviateClass = await this.namespace(client, namespace);
const fields = weaviateClass.properties.map((prop) => prop.name).join(" ");
const queryResponse = await client.graphql
.get()
.withClassName(camelCase(namespace))
.withFields(`${fields} _additional { id }`)
.withFields(`${fields} _additional { id certainty }`)
.withNearVector({ vector: queryVector })
.withLimit(4)
.do();
Expand All @@ -94,11 +95,12 @@ const Weaviate = {
// In Weaviate we have to pluck id from _additional and spread it into the rest
// of the properties.
const {
_additional: { id },
_additional: { id, certainty },
...rest
} = response;
result.contextTexts.push(rest.text);
result.sourceDocuments.push({ ...rest, id });
result.scores.push(certainty);
});

return result;
Expand Down