remove duplicates

src/diary_cover_similarity.py

@@ -104,7 +104,7 @@ def get_similar_diary_ids_by_url(url, index, face_to_vec_f, limit=0.1):
             _scores, _ids = index.search(np.array([face_feature]), 10)
             ids = _ids.flat
             scores = _scores.flat
-            tmp = list(zip(ids, scores))
+            tmp = list(set(zip(ids, scores)))
             res = []
             for (id, score) in tmp:
                 if score >= limit: