ADD: CB Recall

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/recall/strategy/ContentBaseRecallStrategy.java

@@ -0,0 +1,79 @@
+package com.tzld.piaoquan.recommend.server.service.recall.strategy;
+
+import com.google.common.collect.Lists;
+import com.tzld.piaoquan.recommend.server.model.Video;
+import com.tzld.piaoquan.recommend.server.service.filter.FilterParam;
+import com.tzld.piaoquan.recommend.server.service.filter.FilterResult;
+import com.tzld.piaoquan.recommend.server.service.filter.RegionFilterService;
+import com.tzld.piaoquan.recommend.server.service.recall.FilterParamFactory;
+import com.tzld.piaoquan.recommend.server.service.recall.RecallParam;
+import com.tzld.piaoquan.recommend.server.service.recall.RecallStrategy;
+import com.tzld.piaoquan.recommend.server.service.score.ScorerUtils;
+import com.tzld.piaoquan.recommend.server.service.score4recall.ScorerPipeline4Recall;
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.lang3.tuple.Pair;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.Resource;
+import java.util.*;
+
+/**
+ * @author zhangbo
+ */
+@Component
+public class ContentBaseRecallStrategy implements RecallStrategy {
+
+    public static final String PUSH_FORM = "content_base_recall_strategy";
+
+    @Resource
+    private RegionFilterService filterService;
+
+    @Override
+    public List<Video> recall(RecallParam param) {
+
+        // 1 获取省份key 放入参数map中
+        String provinceCn = param.getProvince();
+        if (provinceCn == null) {
+            provinceCn = "中国";
+        } else {
+            provinceCn = provinceCn.replaceAll("省$", "");
+        }
+        Map<String, String> param4Model = new HashMap<>(1);
+        param4Model.put("region_province", provinceCn);
+        // 2 通过model拿到召回list
+        ScorerPipeline4Recall pipeline = ScorerUtils.getScorerPipeline4Recall("content_base_recall.conf");
+        List<List<Pair<Long, Double>>> results = pipeline.recall(param4Model);
+        List<Pair<Long, Double>> result = results.get(0);
+        for (int i = 1; i < results.size(); ++i) {
+            result.addAll(results.get(i));
+        }
+        Map<Long, Double> videoMap = new LinkedHashMap<>();
+        for (Pair<Long, Double> v : result) {
+            videoMap.put(v.getLeft(), v.getRight());
+        }
+        FilterParam filterParam = FilterParamFactory.create(param, Lists.newArrayList(videoMap.keySet()));
+        filterParam.setForceTruncation(10000);
+        filterParam.setConcurrent(true);
+        filterParam.setNotUsePreView(false);
+        FilterResult filterResult = filterService.filter(filterParam);
+        List<Video> videosResult = new ArrayList<>();
+        if (filterResult != null && CollectionUtils.isNotEmpty(filterResult.getVideoIds())) {
+            filterResult.getVideoIds().forEach(vid -> {
+                Video video = new Video();
+                video.setVideoId(vid);
+                video.setAbCode(param.getAbCode());
+                video.setRovScore(videoMap.get(vid));
+                video.setPushFrom(pushFrom());
+                videosResult.add(video);
+            });
+        }
+        return videosResult;
+    }
+
+    @Override
+    public String pushFrom() {
+        return PUSH_FORM;
+    }
+
+
+}

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/score4recall/strategy/ContentBaseRecallScore.java

@@ -0,0 +1,35 @@
+package com.tzld.piaoquan.recommend.server.service.score4recall.strategy;
+
+import com.tzld.piaoquan.recommend.server.service.score.ScorerConfigInfo;
+import com.tzld.piaoquan.recommend.server.service.score4recall.AbstractScorer4Recall;
+import com.tzld.piaoquan.recommend.server.service.score4recall.model4recall.Model4RecallKeyValue;
+import org.apache.commons.lang3.tuple.Pair;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+
+public class ContentBaseRecallScore extends AbstractScorer4Recall {
+
+    public ContentBaseRecallScore(ScorerConfigInfo configInfo) {
+        super(configInfo);
+    }
+
+    @Override
+    public void loadModel() {
+        doLoadModel(Model4RecallKeyValue.class);
+    }
+
+    @Override
+    public List<Pair<Long, Double>> recall(Map<String, String> params) {
+        Model4RecallKeyValue model = (Model4RecallKeyValue) this.getModel();
+        if (model == null || model.kv == null) {
+            return new ArrayList<>();
+        }
+        List<Pair<Long, Double>> festivalLists = model.kv.getOrDefault("", new ArrayList<>());
+        return null;
+    }
+
+
+}

recommend-server-service/src/main/resources/content_base_recall.conf

@@ -0,0 +1,7 @@
+scorer-config = {
+  content-score-config = {
+    scorer-name = "com.tzld.piaoquan.recommend.server.service.score4recall.strategy.ContentBaseRecallScore"
+    scorer-priority = 100
+    model-path = "alg_recall_file/content_base_recall.txt"
+  }
+}