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(improvement)(headless) Adjust the similarity threshold for vector retrieval (#887)

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This commit is contained in:
lexluo09
2024-04-06 10:03:52 +08:00
committed by GitHub
parent 3ef3c44277
commit 0577090b39
4 changed files with 12 additions and 12 deletions
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4
common/src/main/java/com/tencent/supersonic/common/pojo/SysParameter.java
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@@ -74,8 +74,8 @@ public class SysParameter {
"批量向量召回文本请求个数", "每次进行向量语义召回的原始文本片段个数", "number", "Mapper相关配置"));
parameters.add(new Parameter("embedding.mapper.number", "5",
"批量向量召回文本返回结果个数", "每个文本进行向量语义召回的文本结果个数", "number", "Mapper相关配置"));
parameters.add(new Parameter("embedding.mapper.distance.threshold",
"0.01", "向量召回相似度阈值", "相似度大于该阈值的则舍弃", "number", "Mapper相关配置"));
parameters.add(new Parameter("embedding.mapper.threshold",
"0.99", "向量召回相似度阈值", "相似度小于该阈值的则舍弃", "number", "Mapper相关配置"));
//parser config
Parameter s2SQLParameter = new Parameter("s2SQL.generation", "TWO_PASS_AUTO_COT",

10
headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/EmbeddingMatchStrategy.java
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@@ -49,13 +49,13 @@ public class EmbeddingMatchStrategy extends BaseMatchStrategy<EmbeddingResult> {
@Override
public void detectByStep(QueryContext queryContext, Set<EmbeddingResult> existResults, Set<Long> detectDataSetIds,
String detectSegment, int offset) {
String detectSegment, int offset) {
}
@Override
protected void detectByBatch(QueryContext queryContext, Set<EmbeddingResult> results, Set<Long> detectDataSetIds,
Set<String> detectSegments) {
Set<String> detectSegments) {
List<String> queryTextsList = detectSegments.stream()
.map(detectSegment -> detectSegment.trim())
@@ -73,9 +73,9 @@ public class EmbeddingMatchStrategy extends BaseMatchStrategy<EmbeddingResult> {
}
private void detectByQueryTextsSub(Set<EmbeddingResult> results, Set<Long> detectDataSetIds,
List<String> queryTextsSub, Map<Long, List<Long>> modelIdToDataSetIds) {
List<String> queryTextsSub, Map<Long, List<Long>> modelIdToDataSetIds) {
int embeddingNumber = optimizationConfig.getEmbeddingMapperNumber();
Double distance = optimizationConfig.getEmbeddingMapperDistanceThreshold();
Double distance = optimizationConfig.getEmbeddingMapperThreshold();
// step1. build query params
RetrieveQuery retrieveQuery = RetrieveQuery.builder().queryTextsList(queryTextsSub).build();
@@ -94,7 +94,7 @@ public class EmbeddingMatchStrategy extends BaseMatchStrategy<EmbeddingResult> {
if (CollectionUtils.isNotEmpty(retrievals)) {
retrievals.removeIf(retrieval -> {
if (!retrieveQueryResult.getQuery().contains(retrieval.getQuery())) {
return retrieval.getDistance() > distance.doubleValue();
return retrieval.getDistance() > 1 - distance.doubleValue();
}
return false;
});

2
headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/parser/QueryTypeParser.java
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@@ -66,7 +66,7 @@ public class QueryTypeParser implements SemanticParser {
}
List<String> selectFields = SqlSelectHelper.getSelectFields(sqlInfo.getS2SQL());
selectFields.addAll(whereFields);
List<String> selectWhereFilterByTimeFields = filterByTimeFields(whereFields);
List<String> selectWhereFilterByTimeFields = filterByTimeFields(selectFields);
if (CollectionUtils.isNotEmpty(selectWhereFilterByTimeFields)) {
Set<String> tags = semanticSchema.getTags(dataSetId).stream().map(SchemaElement::getName)
.collect(Collectors.toSet());

8
headless/core/src/main/java/com/tencent/supersonic/headless/core/config/OptimizationConfig.java
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@@ -52,8 +52,8 @@ public class OptimizationConfig {
@Value("${embedding.mapper.round.number:10}")
private int embeddingMapperRoundNumber;
@Value("${embedding.mapper.distance.threshold:0.01}")
private Double embeddingMapperDistanceThreshold;
@Value("${embedding.mapper.threshold:0.99}")
private Double embeddingMapperThreshold;
@Value("${s2SQL.linking.value.switch:true}")
private boolean useLinkingValueSwitch;
@@ -135,8 +135,8 @@ public class OptimizationConfig {
return convertValue("embedding.mapper.round.number", Integer.class, embeddingMapperRoundNumber);
}
public Double getEmbeddingMapperDistanceThreshold() {
return convertValue("embedding.mapper.distance.threshold", Double.class, embeddingMapperDistanceThreshold);
public Double getEmbeddingMapperThreshold() {
return convertValue("embedding.mapper.threshold", Double.class, embeddingMapperThreshold);
}
public boolean isUseLinkingValueSwitch() {