fix term weight issue (#3306)

### What problem does this PR solve?

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

rag/benchmark.py

@@ -34,12 +34,13 @@
 
 class Benchmark:
     def __init__(self, kb_id):
-        e, kb = KnowledgebaseService.get_by_id(kb_id)
-        self.similarity_threshold = kb.similarity_threshold
-        self.vector_similarity_weight = kb.vector_similarity_weight
-        self.embd_mdl = LLMBundle(kb.tenant_id, LLMType.EMBEDDING, llm_name=kb.embd_id, lang=kb.language)
+        e, self.kb = KnowledgebaseService.get_by_id(kb_id)
+        self.similarity_threshold = self.kb.similarity_threshold
+        self.vector_similarity_weight = self.kb.vector_similarity_weight
+        self.embd_mdl = LLMBundle(self.kb.tenant_id, LLMType.EMBEDDING, llm_name=self.kb.embd_id, lang=self.kb.language)
 
     def _get_benchmarks(self, query, dataset_idxnm, count=16):
+
         req = {"question": query, "size": count, "vector": True, "similarity": self.similarity_threshold}
         sres = retrievaler.search(req, search.index_name(dataset_idxnm), self.embd_mdl)
         return sres
@@ -48,11 +49,15 @@ def _get_retrieval(self, qrels, dataset_idxnm):
         run = defaultdict(dict)
         query_list = list(qrels.keys())
         for query in query_list:
-            sres = self._get_benchmarks(query, dataset_idxnm)
-            sim, _, _ = retrievaler.rerank(sres, query, 1 - self.vector_similarity_weight,
-                                           self.vector_similarity_weight)
-            for index, id in enumerate(sres.ids):
-                run[query][id] = sim[index]
+
+            ranks = retrievaler.retrieval(query, self.embd_mdl, dataset_idxnm.replace("ragflow_", ""),
+                                          [self.kb.id], 0, 30,
+                           0.0, self.vector_similarity_weight)
+            for c in ranks["chunks"]:
+                if "vector" in c:
+                    del c["vector"]
+                run[query][c["chunk_id"]] = c["similarity"]
+
         return run
 
     def embedding(self, docs, batch_size=16):
@@ -99,7 +104,8 @@ def slow_actions(es_docs, idx_nm):
                 query = data.iloc[i]['query']
                 for rel, text in zip(data.iloc[i]['passages']['is_selected'], data.iloc[i]['passages']['passage_text']):
                     d = {
-                        "id": get_uuid()
+                        "id": get_uuid(),
+                        "kb_id": self.kb.id
                     }
                     tokenize(d, text, "english")
                     docs.append(d)
@@ -208,6 +214,8 @@ def save_results(self, qrels, run, texts, dataset, file_path):
                 scores = sorted(scores, key=lambda kk: kk[1])
                 for score in scores[:10]:
                     f.write('- text: ' + str(texts[score[0]]) + '\t qrel: ' + str(score[1]) + '\n')
+        json.dump(qrels, open(os.path.join(file_path, dataset + '.qrels.json'), "w+"), indent=2)
+        json.dump(run, open(os.path.join(file_path, dataset + '.run.json'), "w+"), indent=2)
         print(os.path.join(file_path, dataset + '_result.md'), 'Saved!')
 
     def __call__(self, dataset, file_path, miracl_corpus=''):

rag/nlp/search.py

@@ -211,8 +211,8 @@ def getFields(self, sres, flds):
                     continue
                 if not isinstance(v, type("")):
                     m[n] = str(m[n])
-                if n.find("tks") > 0:
-                    m[n] = rmSpace(m[n])
+                #if n.find("tks") > 0:
+                #    m[n] = rmSpace(m[n])
 
             if m:
                 res[d["id"]] = m