elastic search java api 向量搜索实践 / java结合es实现 以图搜图

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准备数据

elastic search java api 向量搜索实践 / java结合es实现 以图搜图,elasticsearch,springboot,java,elasticsearch,机器学习

1. FunctionScoreQueryBuilder 方式

代码

//构建脚本查询
Script script = new Script(
        Script.DEFAULT_SCRIPT_TYPE,
        "painless",
        //pic_vector - 搜索字段
        "cosineSimilarity(params.queryVector, doc['pic_vector']) + 1.0",
        new HashMap<String, Object>() {{
            //searchData.getPicVector() - 需要搜索的向量数组,List<Double> 类型
            put("queryVector", searchData.getPicVector());
        }});
ScriptScoreFunctionBuilder scriptScoreFunctionBuilder = ScoreFunctionBuilders.scriptFunction(script);

//构建普通查询
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
// 只查存在的数据
boolQueryBuilder.filter(QueryBuilders.termQuery(FieldGetterUtil.getPropName(searchData::getState), ConstantEnum.ONE.code));
// 查询名称
if (StringUtils.isNotBlank(searchData.getName())) {
    boolQueryBuilder.filter(QueryBuilders.termQuery(FieldGetterUtil.getPropName(searchData::getName), searchData.getName()));
}

// 构建查询请求
SearchRequest searchRequest = new SearchRequest("picture");
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
FunctionScoreQueryBuilder functionScoreQueryBuilder = QueryBuilders.functionScoreQuery(boolQueryBuilder, scriptScoreFunctionBuilder);
searchSourceBuilder.query(functionScoreQueryBuilder);
searchRequest.source(searchSourceBuilder);

// 执行搜索
SearchResponse searchResponse = null;
try {
    searchResponse = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);
} catch (IOException e) {
    e.printStackTrace();
}

DSL

GET picture/_search
{
  "query": {
    "function_score": {
      "query": {
        "bool": {
          "filter": [
            {
              "term": {
                "state": {
                  "value": 1,
                  "boost": 1
                }
              }
            }
          ],
          "adjust_pure_negative": true,
          "boost": 1
        }
      },
      "functions": [
        {
          "filter": {
            "match_all": {
              "boost": 1
            }
          },
          "script_score": {
            "script": {
              "source": "cosineSimilarity(params.queryVector, doc['pic_vector']) + 1.0",
              "lang": "painless",
              "params": {
                "queryVector": [
                  数据太长了,先不展示了~
                ]
              }
            }
          }
        }
      ],
      "score_mode": "multiply",
      "max_boost": 3.4028235e+38,
      "boost": 1
    }
  }
}

搜索图片

elastic search java api 向量搜索实践 / java结合es实现 以图搜图,elasticsearch,springboot,java,elasticsearch,机器学习

搜索结果

elastic search java api 向量搜索实践 / java结合es实现 以图搜图,elasticsearch,springboot,java,elasticsearch,机器学习文章来源地址https://www.toymoban.com/news/detail-745546.html

2. WrapperQueryBuilder 方式

代码

BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
searchRequest.source().query(boolQueryBuilder);

// 只查存在的数据
boolQueryBuilder.filter(QueryBuilders.termQuery(FieldGetterUtil.getPropName(searchData::getState), ConstantEnum.ONE.code));

// 查询拖名称
if (StringUtils.isNotBlank(searchData.getName())) {
    boolQueryBuilder.filter(QueryBuilders.termQuery(FieldGetterUtil.getPropName(searchData::getName), searchData.getName()));
}

/*
    若包含图片向量,使用 WrapperQueryBuilder 重新构建搜索 DSL 。
    这个方法要在所有条件设置完成之后调用
 */
List<Double> picVector = searchData.getPicVector();
if (CollectionUtil.isNotEmpty(picVector)) {
    buildPicVectorWrapperQueryBuilder(searchData, searchRequest);
}
//执行检索
SearchResponse searchResponse = null;
try {
    searchResponse = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);
} catch (IOException e) {
    e.printStackTrace();
    return ElasticSearchUtil.getEmptyList();
}

/**
 * 构建向量搜索DSL
 *
 * @param searchData
 * @param searchRequest
 */
private void buildPicVectorWrapperQueryBuilder(PictureSearchParam searchData, SearchRequest searchRequest) {
    SearchSourceBuilder source = searchRequest.source();
    source.minScore(searchData.getMinCosScore());
    JSONObject boolQueryDsl = JSONObject.parseObject(source.toString()).getJSONObject("query");
    String fieldName = MapUtils.camelToUnderline(FieldGetterUtil.getPropName(searchData::getPicVector));
    JSONObject queryObject = new JSONObject();
    queryObject.
            put("script_score", new JSONObject() {{
                put("query", boolQueryDsl);
                put("script", new JSONObject() {{
                    put("source", "cosineSimilarity(params." + fieldName + ", doc['" + fieldName + "'])+1.0");
                    put("params", new JSONObject() {{
                        put(fieldName, searchData.getPicVector());
                    }});
                }});
            }});
    WrapperQueryBuilder wrapperQueryBuilder = new WrapperQueryBuilder(JSON.toJSONString(queryObject));
    searchRequest.source().query(wrapperQueryBuilder);
}

DSL

GET picture/_search
{
  "from": 0,
  "size": 10,
  "query": {
    "wrapper": {
      "query": "{"script_score":{"query":{"bool":{"filter":[{"term":{"state":{"value":1,"boost":1.0}}}],"adjust_pure_negative":true,"boost":1.0}},"script":{"source":"cosineSimilarity(params.pic_vector, doc['pic_vector'])+1.0","params":{"pic_vector":[1.6442052125930786,1.8865864276885986,1.7520954608917236,1.468852162361145,0.5215243697166443,0.7162830829620361,0.24571764469146729,1.4161274433135986,0.6646647453308105,1.3490488529205322,0.48114028573036194,0.2379283457994461,1.2469896078109741,0.08662496507167816,0.5922273993492126,0.10052661597728729,0.10489580780267715,2.9626169204711914,0.9646034240722656,0.19339174032211304,0.6715909242630005,0.04913193732500076,0.0,0.42337557673454285,0.025834018364548683,0.0,0.11716371029615402,0.6066735982894897,0.014276627451181412,2.884373903274536,1.64122474193573,1.2666609287261963,0.25835415720939636,1.1439200639724731,1.4614897966384888,0.11240338534116745,0.41580113768577576,1.0173624753952026,0.5987152457237244,1.2826963663101196,0.5032907724380493,1.057185173034668,0.547160804271698,0.05201975628733635,0.9926323890686035,0.21758079528808594,1.5080771446228027,0.8714171648025513,1.0743465423583984,0.26693201065063477,0.09906674176454544,0.6293906569480896,1.286428451538086,0.0,0.3668249547481537,0.5311413407325745,0.061351045966148376,2.250185012817383,2.789849042892456,0.15071651339530945,0.1434730738401413,0.9516364932060242,0.1407829225063324,0.25287064909935,0.17089177668094635,1.6555739641189575,0.0,0.0019493978470563889,1.3358027935028076,0.07204823940992355,0.16275016963481903,0.11294800788164139,0.5596479177474976,2.8226816654205322,0.14157873392105103,0.03585885465145111,0.9136238098144531,0.41478878259658813,1.0509036779403687,0.3129948079586029,2.0000646114349365,0.8153970837593079,1.3230550289154053,1.1095032691955566,0.28675076365470886,0.18675370514392853,0.2574092745780945,0.45135366916656494,0.016980139538645744,0.20753440260887146,0.41814732551574707,0.45569372177124023,0.3243209421634674,2.3663172721862793,0.3488512933254242,0.3961148262023926,1.2847280502319336,0.4596094787120819,0.295514315366745,0.27450114488601685,0.3971012234687805,0.09721055626869202,1.0776207447052002,1.7841401100158691,1.1067540645599365,0.47844311594963074,0.20624254643917084,0.31310611963272095,0.6461139917373657,0.7538109421730042,0.395407110452652,0.45494332909584045,0.6232404112815857,0.8919894695281982,0.07885006815195084,0.4594714045524597,0.0811014398932457,0.4367794096469879,0.38426822423934937,0.32951658964157104,0.39118894934654236,0.22487390041351318,0.8610787391662598,0.5830796957015991,0.22959084808826447,0.0,0.9512133002281189,1.5710111856460571,1.2377055883407593,0.7546780109405518,0.48969006538391113,0.01670645736157894,0.003672399092465639,0.13706518709659576,1.7633861303329468,0.0814945325255394,1.1701894998550415,1.7390072345733643,0.3970920443534851,0.12410901486873627,0.25183501839637756,0.0,0.8199000358581543,0.7423927187919617,0.6346560716629028,0.022905947640538216,0.04582146182656288,0.9695563912391663,0.12152308970689774,0.17273357510566711,0.7655898928642273,0.08139333128929138,0.07582168281078339,0.9004191756248474,0.14518927037715912,0.6863758563995361,0.1891728788614273,1.0480291843414307,0.19950711727142334,0.8628987073898315,0.5608657598495483,0.8113354444503784,1.4624766111373901,1.43254554271698,0.4083332121372223,0.34310656785964966,0.9406865835189819,0.25686052441596985,1.1322646141052246,1.3540557622909546,0.02817135490477085,0.9846411943435669,0.9473340511322021,0.011850777082145214,0.061210229992866516,1.5749471187591553,0.07743599265813828,0.021998148411512375,0.3337361216545105,1.3646867275238037,0.197146937251091,0.02684418112039566,0.12807682156562805,1.0077452659606934,0.3472479283809662,1.2218244075775146,0.09163398295640945,0.933601975440979,0.9883574843406677,0.0011759570334106684,1.3720240592956543,0.6321293711662292,0.4054896831512451,0.35202157497406006,0.9274296164512634,0.31666436791419983,0.2984192967414856,1.3704978227615356,0.5182018876075745,1.0565110445022583,0.40002939105033875,0.4459632635116577,0.040395546704530716,0.10418936610221863,0.17342320084571838,0.2005527913570404,0.8796011209487915,0.11033149808645248,1.0753612518310547,1.6421480178833008,0.8594897389411926,0.23118343949317932,0.020162638276815414,0.11008383333683014,1.025146484375,0.6431025266647339,0.3835214376449585,0.2778571844100952,0.19006343185901642,0.1956976354122162,0.33776241540908813,1.3048166036605835,0.404217928647995,0.2543957233428955,0.6464782953262329,0.11861731112003326,0.3645017445087433,0.39175671339035034,0.001248408923856914,0.21438832581043243,1.7175337076187134,0.023903202265501022,0.08463321626186371,2.3428306579589844,1.0570204257965088,0.7067260146141052,0.02989930287003517,0.5042319893836975,1.3931736946105957,2.6658830642700195,0.15046465396881104,0.06599919497966766,0.950067937374115,1.8213883638381958,1.1690945625305176,0.24541716277599335,0.2557571828365326,1.3565306663513184,0.8072720766067505,0.08816192299127579,0.35571640729904175,0.18390542268753052,0.21673527359962463,0.03435497358441353,0.6771786212921143,0.3647828698158264,0.013729920610785484,3.0426361560821533,2.367980480194092,0.5787132382392883,1.466723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    }
  },
  "min_score": 1,
  "explain": true,
  "_source": {
    "includes": [
      "id",
      "pic_path"
    ],
    "excludes": []
  },
  "sort": [
    {
      "create_time": {
        "order": "desc"
      }
    }
  ],
  "track_total_hits": 2147483647
}

搜索图片

elastic search java api 向量搜索实践 / java结合es实现 以图搜图,elasticsearch,springboot,java,elasticsearch,机器学习

搜索结果

elastic search java api 向量搜索实践 / java结合es实现 以图搜图,elasticsearch,springboot,java,elasticsearch,机器学习

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