feat: milvus检索的时候手动过滤分数过低的检索文档块

app/utils/milvus_utils.py

@@ -95,6 +95,7 @@ class MilvusService:
     retriever = vector_index.as_retriever(filters=filters, similarity_top_k=param.top_k)
 
     result_nodes = await retriever.aretrieve(param.question)
+    result_nodes = [node for node in result_nodes if node.score >= 0.3]
 
     chain = ChatPromptTemplate.from_template("""
         你将收到一个用户问题和一组来自LlamaIndex的检索结果。你的任务是：
@@ -124,6 +125,9 @@ class MilvusService:
 
     relative_content = await chain.ainvoke(chain_input)
 
+    # print("milvus search answer", relative_content)
+    # print("milvus search nodes", [node.node.text for node in result_nodes])
+
     return MilvusSearchResponse(
       answer=relative_content,
       nodes=[