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@ -22,19 +22,6 @@ logger = logging.getLogger(__name__)
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logger.setLevel(logging.INFO)
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# # BGEEmbedding 类,继承自 HuggingFaceEmbedding,用于生成查询的嵌入
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# class BGEEmbedding(HuggingFaceEmbedding):
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# def _get_query_embedding(self, query: str) -> List[float]:
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# # 在查询前加上前缀,生成嵌入向量
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# prefix = "Represent this sentence for searching relevant passages: "
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# return super()._get_query_embedding(prefix + query)
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# def _get_query_embeddings(self, queries: List[str]) -> List[List[float]]:
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# # 批量生成嵌入向量
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# prefix = "Represent this sentence for searching relevant passages: "
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# return super()._get_query_embeddings([prefix + q for q in queries])
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# BGEEmbedding 类,继承自 HuggingFaceEmbedding,用于生成查询的嵌入
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class BGEEmbedding(HuggingFaceEmbedding):
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def _get_query_embedding(self, query: str) -> List[float]:
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@ -44,14 +31,14 @@ class BGEEmbedding(HuggingFaceEmbedding):
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prefix = "Represent this sentence for searching relevant passages: "
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embedding = super()._get_query_embedding(prefix + query)
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# 转换为 float32 类型
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# 转换为 numpy 数组并记录 dtype
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embedding = np.array(embedding, dtype=np.float32)
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# 将 numpy 数组转换为列表,确保 embedding 是一个列表
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embedding = embedding.tolist()
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# 使用 logger 打印数据类型
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# 使用 logger 打印数据类型(dtype 在 numpy 数组上有效)
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logger.info(f"Query embedding dtype after conversion: {embedding.dtype}")
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# 转换为列表返回
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embedding = embedding.tolist() # 转换为 Python 列表
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return embedding
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except Exception as e:
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logger.error(f"Error in _get_query_embedding: {e}")
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@ -64,17 +51,23 @@ class BGEEmbedding(HuggingFaceEmbedding):
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prefix = "Represent this sentence for searching relevant passages: "
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embeddings = super()._get_query_embeddings([prefix + q for q in queries])
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# 转换为 float32 类型并转换为列表
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embeddings = [np.array(embedding, dtype=np.float32).tolist() for embedding in embeddings]
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# 转换为 numpy 数组并记录 dtype
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embeddings = [np.array(embedding, dtype=np.float32) for embedding in embeddings]
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# 使用 logger 打印数据类型
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# 使用 logger 打印数据类型(dtype 在 numpy 数组上有效)
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logger.info(f"Batch query embeddings dtype after conversion: {embeddings[0].dtype}")
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# 转换为列表返回
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embeddings = [embedding.tolist() for embedding in embeddings]
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return embeddings
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except Exception as e:
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logger.error(f"Error in _get_query_embeddings: {e}")
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raise
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def build_user_index(user_id: str):
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logger.info(f"开始为用户 {user_id} 构建索引...")
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