优化了现有的知识库系统

src/plugins/chat_module/reasoning_chat/reasoning_prompt_builder.py

@@ -1,16 +1,19 @@
 import random
 import time
-from typing import Optional
+from typing import Optional, Union
+import re
+import jieba
+import numpy as np
 
 from ....common.database import db
-from ...memory_system.Hippocampus import HippocampusManager
-from ...moods.moods import MoodManager
-from ...schedule.schedule_generator import bot_schedule
-from ...config.config import global_config
 from ...chat.utils import get_embedding, get_recent_group_detailed_plain_text, get_recent_group_speaker
 from ...chat.chat_stream import chat_manager
-from src.common.logger import get_module_logger
+from ...moods.moods import MoodManager
+from ...memory_system.Hippocampus import HippocampusManager
+from ...schedule.schedule_generator import bot_schedule
+from ...config.config import global_config
 from ...person_info.relationship_manager import relationship_manager
+from src.common.logger import get_module_logger
 
 logger = get_module_logger("prompt")
 
@@ -128,7 +131,7 @@ class PromptBuilder:
         # 知识构建
         start_time = time.time()
         prompt_info = ""
-        prompt_info = await self.get_prompt_info(message_txt, threshold=0.5)
+        prompt_info = await self.get_prompt_info(message_txt, threshold=0.38)
         if prompt_info:
             prompt_info = f"""\n你有以下这些**知识**：\n{prompt_info}\n请你**记住上面的知识**，之后可能会用到。\n"""
 
@@ -158,16 +161,156 @@ class PromptBuilder:
         return prompt
 
     async def get_prompt_info(self, message: str, threshold: float):
+        start_time = time.time()
         related_info = ""
         logger.debug(f"获取知识库内容，元消息：{message[:30]}...，消息长度: {len(message)}")
-        embedding = await get_embedding(message, request_type="prompt_build")
-        related_info += self.get_info_from_db(embedding, limit=1, threshold=threshold)
         
+        # 1. 先从LLM获取主题，类似于记忆系统的做法
+        topics = []
+        try:
+            # 先尝试使用记忆系统的方法获取主题
+            hippocampus = HippocampusManager.get_instance()._hippocampus
+            topic_num = min(5, max(1, int(len(message) * 0.1)))
+            topics_response = await hippocampus.llm_topic_judge.generate_response(hippocampus.find_topic_llm(message, topic_num))
+            
+            # 提取关键词
+            topics = re.findall(r"<([^>]+)>", topics_response[0])
+            if not topics:
+                topics = []
+            else:
+                topics = [
+                    topic.strip()
+                    for topic in ",".join(topics).replace("，", ",").replace("、", ",").replace(" ", ",").split(",")
+                    if topic.strip()
+                ]
+            
+            logger.info(f"从LLM提取的主题: {', '.join(topics)}")
+        except Exception as e:
+            logger.error(f"从LLM提取主题失败: {str(e)}")
+            # 如果LLM提取失败，使用jieba分词提取关键词作为备选
+            words = jieba.cut(message)
+            topics = [word for word in words if len(word) > 1][:5]
+            logger.info(f"使用jieba提取的主题: {', '.join(topics)}")
+        
+        # 如果无法提取到主题，直接使用整个消息
+        if not topics:
+            logger.info("未能提取到任何主题，使用整个消息进行查询")
+            embedding = await get_embedding(message, request_type="prompt_build")
+            if not embedding:
+                logger.error("获取消息嵌入向量失败")
+                return ""
+                
+            related_info = self.get_info_from_db(embedding, limit=3, threshold=threshold)
+            logger.info(f"知识库检索完成，总耗时: {time.time() - start_time:.3f}秒")
             return related_info
         
-    def get_info_from_db(self, query_embedding: list, limit: int = 1, threshold: float = 0.5) -> str:
-        if not query_embedding:
+        # 2. 对每个主题进行知识库查询
+        logger.info(f"开始处理{len(topics)}个主题的知识库查询")
+        
+        # 优化：批量获取嵌入向量，减少API调用
+        embeddings = {}
+        topics_batch = [topic for topic in topics if len(topic) > 0]
+        if message:  # 确保消息非空
+            topics_batch.append(message)
+        
+        # 批量获取嵌入向量
+        embed_start_time = time.time()
+        for text in topics_batch:
+            if not text or len(text.strip()) == 0:
+                continue
+                
+            try:
+                embedding = await get_embedding(text, request_type="prompt_build")
+                if embedding:
+                    embeddings[text] = embedding
+                else:
+                    logger.warning(f"获取'{text}'的嵌入向量失败")
+            except Exception as e:
+                logger.error(f"获取'{text}'的嵌入向量时发生错误: {str(e)}")
+        
+        logger.info(f"批量获取嵌入向量完成，耗时: {time.time() - embed_start_time:.3f}秒")
+        
+        if not embeddings:
+            logger.error("所有嵌入向量获取失败")
             return ""
+        
+        # 3. 对每个主题进行知识库查询
+        all_results = []
+        query_start_time = time.time()
+        
+        # 首先添加原始消息的查询结果
+        if message in embeddings:
+            original_results = self.get_info_from_db(embeddings[message], limit=3, threshold=threshold, return_raw=True)
+            if original_results:
+                for result in original_results:
+                    result["topic"] = "原始消息"
+                all_results.extend(original_results)
+                logger.info(f"原始消息查询到{len(original_results)}条结果")
+        
+        # 然后添加每个主题的查询结果
+        for topic in topics:
+            if not topic or topic not in embeddings:
+                continue
+                
+            try:
+                topic_results = self.get_info_from_db(embeddings[topic], limit=3, threshold=threshold, return_raw=True)
+                if topic_results:
+                    # 添加主题标记
+                    for result in topic_results:
+                        result["topic"] = topic
+                    all_results.extend(topic_results)
+                    logger.info(f"主题'{topic}'查询到{len(topic_results)}条结果")
+            except Exception as e:
+                logger.error(f"查询主题'{topic}'时发生错误: {str(e)}")
+        
+        logger.info(f"知识库查询完成，耗时: {time.time() - query_start_time:.3f}秒，共获取{len(all_results)}条结果")
+        
+        # 4. 去重和过滤
+        process_start_time = time.time()
+        unique_contents = set()
+        filtered_results = []
+        for result in all_results:
+            content = result["content"]
+            if content not in unique_contents:
+                unique_contents.add(content)
+                filtered_results.append(result)
+        
+        # 5. 按相似度排序
+        filtered_results.sort(key=lambda x: x["similarity"], reverse=True)
+        
+        # 6. 限制总数量（最多10条）
+        filtered_results = filtered_results[:10]
+        logger.info(f"结果处理完成，耗时: {time.time() - process_start_time:.3f}秒，过滤后剩余{len(filtered_results)}条结果")
+        
+        # 7. 格式化输出
+        if filtered_results:
+            format_start_time = time.time()
+            grouped_results = {}
+            for result in filtered_results:
+                topic = result["topic"]
+                if topic not in grouped_results:
+                    grouped_results[topic] = []
+                grouped_results[topic].append(result)
+            
+            # 按主题组织输出
+            for topic, results in grouped_results.items():
+                related_info += f"【主题: {topic}】\n"
+                for i, result in enumerate(results, 1):
+                    similarity = result["similarity"]
+                    content = result["content"].strip()
+                    # 调试：为内容添加序号和相似度信息
+                    # related_info += f"{i}. [{similarity:.2f}] {content}\n"
+                    related_info += f"{content}\n"
+                related_info += "\n"
+            
+            logger.info(f"格式化输出完成，耗时: {time.time() - format_start_time:.3f}秒")
+        
+        logger.info(f"知识库检索总耗时: {time.time() - start_time:.3f}秒")
+        return related_info
+
+    def get_info_from_db(self, query_embedding: list, limit: int = 1, threshold: float = 0.5, return_raw: bool = False) -> Union[str, list]:
+        if not query_embedding:
+            return "" if not return_raw else []
         # 使用余弦相似度计算
         pipeline = [
             {
@@ -221,11 +364,14 @@ class PromptBuilder:
         ]
 
         results = list(db.knowledges.aggregate(pipeline))
-        # print(f"\033[1;34m[调试]\033[0m获取知识库内容结果: {results}")
+        logger.debug(f"知识库查询结果数量: {len(results)}")
 
         if not results:
-            return ""
+            return "" if not return_raw else []
 
+        if return_raw:
+            return results
+        else:
             # 返回所有找到的内容，用换行分隔
             return "\n".join(str(result["content"]) for result in results)
 

src/plugins/zhishi/knowledge_library.py

@@ -41,7 +41,7 @@ class KnowledgeLibrary:
             return f.read()
 
     def split_content(self, content: str, max_length: int = 512) -> list:
-        """将内容分割成适当大小的块，保持段落完整性
+        """将内容分割成适当大小的块，按空行分割
 
         Args:
             content: 要分割的文本内容
@@ -50,66 +50,20 @@ class KnowledgeLibrary:
         Returns:
             list: 分割后的文本块列表
         """
-        # 首先按段落分割
+        # 按空行分割内容
         paragraphs = [p.strip() for p in content.split("\n\n") if p.strip()]
         chunks = []
-        current_chunk = []
-        current_length = 0
         
         for para in paragraphs:
             para_length = len(para)
             
-            # 如果单个段落就超过最大长度
-            if para_length > max_length:
-                # 如果当前chunk不为空，先保存
-                if current_chunk:
-                    chunks.append("\n".join(current_chunk))
-                    current_chunk = []
-                    current_length = 0
-
-                # 将长段落按句子分割
-                sentences = [
-                    s.strip()
-                    for s in para.replace("。", "。\n").replace("！", "！\n").replace("？", "？\n").split("\n")
-                    if s.strip()
-                ]
-                temp_chunk = []
-                temp_length = 0
-
-                for sentence in sentences:
-                    sentence_length = len(sentence)
-                    if sentence_length > max_length:
-                        # 如果单个句子超长，强制按长度分割
-                        if temp_chunk:
-                            chunks.append("\n".join(temp_chunk))
-                            temp_chunk = []
-                            temp_length = 0
-                        for i in range(0, len(sentence), max_length):
-                            chunks.append(sentence[i : i + max_length])
-                    elif temp_length + sentence_length + 1 <= max_length:
-                        temp_chunk.append(sentence)
-                        temp_length += sentence_length + 1
+            # 如果段落长度小于等于最大长度，直接添加
+            if para_length <= max_length:
+                chunks.append(para)
             else:
-                        chunks.append("\n".join(temp_chunk))
-                        temp_chunk = [sentence]
-                        temp_length = sentence_length
-
-                if temp_chunk:
-                    chunks.append("\n".join(temp_chunk))
-
-            # 如果当前段落加上现有chunk不超过最大长度
-            elif current_length + para_length + 1 <= max_length:
-                current_chunk.append(para)
-                current_length += para_length + 1
-            else:
-                # 保存当前chunk并开始新的chunk
-                chunks.append("\n".join(current_chunk))
-                current_chunk = [para]
-                current_length = para_length
-
-        # 添加最后一个chunk
-        if current_chunk:
-            chunks.append("\n".join(current_chunk))
+                # 如果段落超过最大长度，则按最大长度切分
+                for i in range(0, para_length, max_length):
+                    chunks.append(para[i:i + max_length])
         
         return chunks