Merge branch 'similar_sort' into 'master'

modify linucb

See merge request !139

linucb/views/collect_data.py

@@ -109,7 +109,7 @@ class CollectData(object):
                     # 更新该用户的推荐tag数据，放在 更新完成user tag行为信息之后
                     self.update_recommend_tag_list(device_id, user_feature)
                 elif "type" in raw_val_dict and "page_precise_exposure"==raw_val_dict["type"]:
-                    exposure_cards_list = raw_val_dict["params"]["exposure_cards"]
+                    exposure_cards_list = json.loads(raw_val_dict["params"]["exposure_cards"])
                     device_id = raw_val_dict["device"]["device_id"]
                     for item in exposure_cards_list:
                         exposure_topic_id = item["card_id"]