Add benchmark ndcg@10 (#2326)

### What problem does this PR solve?

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

rag/benchmark.py

@@ -0,0 +1,94 @@
+#
+#  Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+import argparse
+from collections import defaultdict
+from api.db import FileType, TaskStatus, ParserType, LLMType
+from api.db.services.llm_service import LLMBundle
+from api.db.services.knowledgebase_service import KnowledgebaseService
+from api.settings import retrievaler
+from api.utils import get_uuid
+from rag.nlp import tokenize, search
+from rag.utils.es_conn import ELASTICSEARCH
+from ranx import evaluate
+
+
+class benchmark_ndcg10:
+    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)
+
+    def _get_benchmarks(self, query, count=16):
+        req = {"question": query, "size": count, "vector": True, "similarity": self.similarity_threshold}
+        sres = retrievaler.search(req, search.index_name("benchmark"), self.embd_mdl)
+        return sres
+
+    def _get_retrieval(self, qrels):
+        run = defaultdict(dict)
+        query_list = list(qrels.keys())
+        for query in query_list:
+            sres = self._get_benchmarks(query)
+            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]
+        return run
+
+    def embedding(self, docs, batch_size=16):
+        vects = []
+        cnts = [d["content_with_weight"] for d in docs]
+        for i in range(0, len(cnts), batch_size):
+            vts, c = self.embd_mdl.encode(cnts[i: i + batch_size])
+            vects.extend(vts.tolist())
+        assert len(docs) == len(vects)
+        for i, d in enumerate(docs):
+            v = vects[i]
+            d["q_%d_vec" % len(v)] = v
+        return docs
+
+    def __call__(self, file_path):
+        qrels = defaultdict(dict)
+
+        docs = []
+        with open(file_path) as f:
+            for line in f:
+                query, text, rel = line.strip('\n').split()
+                d = {
+                    "id": get_uuid()
+                }
+                tokenize(d, text)
+                docs.append(d)
+                if len(docs) >= 32:
+                    ELASTICSEARCH.bulk(docs, search.index_name("benchmark"))
+                    docs = []
+                qrels[query][d["id"]] = float(rel)
+            docs = self.embedding(docs)
+            ELASTICSEARCH.bulk(docs, search.index_name("benchmark"))
+
+        run = self._get_retrieval(qrels)
+        return evaluate(qrels, run, "ndcg@10")
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-f', '--filepath', default='', help="file path", action='store', required=True)
+    parser.add_argument('-k', '--kb_id', default='', help="kb_id", action='store', required=True)
+    args = parser.parse_args()
+
+    ex = benchmark_ndcg10(args.kb_id)
+    print(ex(args.filepath))

requirements.txt

@@ -70,6 +70,7 @@ python_dateutil==2.8.2
 python_pptx==0.6.23
 pywencai==0.12.2
 qianfan==0.4.6
+ranx==0.3.20
 readability_lxml==0.8.1
 redis==5.0.3
 Requests==2.32.2

requirements_arm.txt

@@ -171,3 +171,4 @@ vertexai==1.64.0
 yfinance==0.2.43
 pywencai==0.12.2
 akshare==1.14.72
+ranx==0.3.20