男女频道降分考虑性别

 package com.yoho.search.service.personalized;
 
-import com.yoho.search.core.personalized.BigDataRedisOper;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import com.alibaba.fastjson.JSONArray;
+import com.yoho.search.core.personalized.BigDataRedisOper;
+
 /**
  * Created by ginozhang on 2017/1/5.
  */
@@ -12,6 +19,8 @@ public class PersonalizedRedisService {
 
 	// 保存用户特征向量的key格式，比如 “1022102:w2v:20170103” 值是一个字符串，各个值之间用逗号分隔
 	private static final String USER_FEATURE_KEY_TEMPLATE = "%s:w2v:%s";
+	
+	private static final String USER_GENDER_KEY= "%s:gender";
 
 	@Autowired
 	private BigDataRedisOper<?,?> bigDataRedisOper;
@@ -20,5 +29,39 @@ public class PersonalizedRedisService {
 		String key = String.format(USER_FEATURE_KEY_TEMPLATE, uid, generateDate);
 		return bigDataRedisOper.getValue(key);
 	}
+	
+	/**
+	 * 获取用户性别维度
+	 * @param uid
+	 * @param generateDate
+	 * @return
+	 */
+	public Map<String,Float> getUserGenderFeature(String uid) {
+		String key = String.format(USER_GENDER_KEY, uid);
+		String userGenderWeightValue =  bigDataRedisOper.getValue(key);
+		if(StringUtils.isBlank(userGenderWeightValue)){
+			return new HashMap<String, Float>();
+		}
+		Map<String,Float> result = new HashMap<String, Float>();
+		List<String>  userGenderWeightList = JSONArray.parseArray(userGenderWeightValue, String.class);
+		for (String genderWeight : userGenderWeightList) {
+			String [] userGenderWeight = genderWeight.split(":");
+			result.put(userGenderWeight[0], Float.parseFloat(userGenderWeight[1]));
+		}
+		return result;
+	}
+	
+	public static void main(String[] args) {
+		String userGenderWeightValue = "['2:0.1686046511627907', '1:0.6957364341085271', '3:0.13565891472868216']";
+		Map<String,Float> result = new HashMap<String, Float>();
+		List<String>  userGenderWeightList = JSONArray.parseArray(userGenderWeightValue, String.class);
+		for (String genderWeight : userGenderWeightList) {
+			String [] userGenderWeight = genderWeight.split(":");
+			result.put(userGenderWeight[0], Float.parseFloat(userGenderWeight[1]));
+		}
+		for (Map.Entry<String, Float> entry : result.entrySet()) {
+			System.out.println(entry.getKey()+ ":" + entry.getValue());
+		}
+	}
 
 }

 package com.yoho.search.service.service.helper;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Map;
 
 import org.apache.commons.lang.StringUtils;
@@ -15,8 +17,10 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 import com.yoho.search.service.personalized.PersonalVectorFeatureSearch;
+import com.yoho.search.service.personalized.PersonalizedRedisService;
 import com.yoho.search.service.service.SearchDynamicConfigService;
 import com.yoho.search.service.utils.SearchRequestParams;
+import com.yoho.search.service.vo.PhysicalChannelScore;
 
 @Component
 public class FunctionScoreSearchHelper {
@@ -27,6 +31,8 @@ public class FunctionScoreSearchHelper {
 	private PersonalVectorFeatureSearch personalVectorFeatureSearch;
 	@Autowired
 	private SearchDynamicConfigService dynamicConfig;
+	@Autowired
+	private PersonalizedRedisService personalizedRedisService;
 
 	static float globalWeight = 0.50f;
 
@@ -52,10 +58,9 @@ public class FunctionScoreSearchHelper {
 		}
 		// 针对频道降分
 		if (searchCommonHelper.isNeedDeScoreForChannel(paramMap)) {
-			QueryBuilder physicalChannelQueryBuilder = this.getPhysicalChannelQueryBuilder(paramMap);
-			if (physicalChannelQueryBuilder != null) {
-				float physicalChannelWeight = (float) dynamicConfig.getDeScorePhysicalChannelWeight();
-				functionScoreQueryBuilder.add(physicalChannelQueryBuilder, ScoreFunctionBuilders.weightFactorFunction(physicalChannelWeight));
+			List<PhysicalChannelScore> physicalChannelScores = this.getPhysicalChannelQueryBuilder(paramMap);
+			for (PhysicalChannelScore physicalChannelScore : physicalChannelScores) {
+				functionScoreQueryBuilder.add(physicalChannelScore.getQueryBuilder(), ScoreFunctionBuilders.weightFactorFunction(physicalChannelScore.getWeight()));
 			}
 		}
 		functionScoreQueryBuilder.boostMode(CombineFunction.MULT);
@@ -75,39 +80,69 @@ public class FunctionScoreSearchHelper {
 		return functionScoreQueryBuilder;
 	}
 
-	private QueryBuilder getPhysicalChannelQueryBuilder(Map<String, String> paramMap) {
+	/**
+	 * 获取将要降分的性别权重
+	 * 
+	 * @param uid
+	 * @param baseScore
+	 * @param descoreGender
+	 * @return
+	 */
+	public float getDescoreGenderWeight(String uid, float baseScore, String descoreGender) {
+		Map<String, Float> userGenderFloat = personalizedRedisService.getUserGenderFeature(uid);
+		Float userGenderWeight = userGenderFloat.get(descoreGender);
+		if (userGenderWeight == null) {
+			return baseScore;
+		}
+		return baseScore * (1 + userGenderWeight);
+	}
+
+	private List<PhysicalChannelScore> getPhysicalChannelQueryBuilder(Map<String, String> paramMap) {
+		float physicalChannelWeight = (float) dynamicConfig.getDeScorePhysicalChannelWeight();
+		String uid = paramMap.get("uid");
+
 		String physicalChannel = paramMap.get(SearchRequestParams.PHYSICAL_CHANNEL);
-		BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
 		TermsQueryBuilder physicalChannelsTermsQueryBuilder = QueryBuilders.termsQuery("physicalChannels", physicalChannel);
+
+		List<PhysicalChannelScore> results = new ArrayList<PhysicalChannelScore>();
+
 		// 潮童频道，对非潮童频道的或成人的商品降分
 		if (physicalChannel.equals("3")) {
+			BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
 			boolQueryBuilder.should(QueryBuilders.boolQuery().mustNot(physicalChannelsTermsQueryBuilder));
 			boolQueryBuilder.should(QueryBuilders.termsQuery("ageLevel", "1"));
-			return boolQueryBuilder;
+			results.add(new PhysicalChannelScore(boolQueryBuilder, physicalChannelWeight));
+			return results;
 		}
 		// 创意生活频道，对非创意生活频道的商品降分
 		if (physicalChannel.equals("4")) {
-			return boolQueryBuilder.mustNot(physicalChannelsTermsQueryBuilder);
+			BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery().mustNot(physicalChannelsTermsQueryBuilder);
+			results.add(new PhysicalChannelScore(boolQueryBuilder, physicalChannelWeight));
+			return results;
 		}
-
 		// 如果用户在男女频道的意图中包含了明显的性别意图，则只针对频道降分
 		if (isUserSearchContainGender(paramMap)) {
-			return boolQueryBuilder.mustNot(physicalChannelsTermsQueryBuilder);
+			BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery().mustNot(physicalChannelsTermsQueryBuilder);
+			results.add(new PhysicalChannelScore(boolQueryBuilder, physicalChannelWeight));
+			return results;
 		}
-
 		// 男生频道，对非男生频道的商品或者性别女的降分
 		if (physicalChannel.equals("1")) {
+			BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
 			boolQueryBuilder.should(QueryBuilders.boolQuery().mustNot(physicalChannelsTermsQueryBuilder));
 			boolQueryBuilder.should(QueryBuilders.termsQuery("gender", "2"));
-			return boolQueryBuilder;
+			results.add(new PhysicalChannelScore(boolQueryBuilder, this.getDescoreGenderWeight(uid, physicalChannelWeight, "2")));
+			return results;
 		}
 		// 女生频道，对非女生频道的商品或者性别男的降分
 		if (physicalChannel.equals("2")) {
+			BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
 			boolQueryBuilder.should(QueryBuilders.boolQuery().mustNot(physicalChannelsTermsQueryBuilder));
 			boolQueryBuilder.should(QueryBuilders.termsQuery("gender", "1"));
-			return boolQueryBuilder;
+			results.add(new PhysicalChannelScore(boolQueryBuilder, this.getDescoreGenderWeight(uid, physicalChannelWeight, "1")));
+			return results;
 		}
-		return null;
+		return new ArrayList<PhysicalChannelScore>();
 	}
 
 	private boolean isUserSearchContainGender(Map<String, String> paramMap) {

+package com.yoho.search.service.vo;
+
+import org.elasticsearch.index.query.QueryBuilder;
+
+public class PhysicalChannelScore {
+
+	QueryBuilder queryBuilder;
+	float weight;
+
+	public PhysicalChannelScore(QueryBuilder queryBuilder, float weight) {
+		super();
+		this.queryBuilder = queryBuilder;
+		this.weight = weight;
+	}
+
+	public QueryBuilder getQueryBuilder() {
+		return queryBuilder;
+	}
+
+	public float getWeight() {
+		return weight;
+	}
+}