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LLM: modify transformersembeddings.embed() in langchain (#10051)

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Zhicun 2024-02-05 10:42:10 +08:00 committed by GitHub
parent ad050107b3
commit 676d6923f2
2 changed files with 8 additions and 2 deletions
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4
python/llm/src/bigdl/llm/langchain/embeddings/transformersembeddings.py
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@ -135,7 +135,7 @@ class TransformersEmbeddings(BaseModel, Embeddings):
extra = Extra.forbid extra = Extra.forbid
def embed(self, text: str): def embed(self, text: str, **kwargs):
"""Compute doc embeddings using a HuggingFace transformer model. """Compute doc embeddings using a HuggingFace transformer model.
Args: Args:
@ -144,7 +144,7 @@ class TransformersEmbeddings(BaseModel, Embeddings):
Returns: Returns:
List of embeddings, one for each text. List of embeddings, one for each text.
""" """
input_ids = self.tokenizer.encode(text, return_tensors="pt") # shape: [1, T] input_ids = self.tokenizer.encode(text, return_tensors="pt", **kwargs) # shape: [1, T]
embeddings = self.model(input_ids, return_dict=False)[0] # shape: [1, T, N] embeddings = self.model(input_ids, return_dict=False)[0] # shape: [1, T, N]
embeddings = embeddings.squeeze(0).detach().numpy() embeddings = embeddings.squeeze(0).detach().numpy()
embeddings = np.mean(embeddings, axis=0) embeddings = np.mean(embeddings, axis=0)

6
python/llm/test/langchain/test_transformers_api.py
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@ -130,6 +130,12 @@ class Test_Langchain_Transformers_API(TestCase):
self.assertTrue(res) self.assertTrue(res)
""" """
def test_embed_kwargs(self):
embeddings = TransformersEmbeddings.from_model_id(model_id=self.llama_model_path)
encode_kwargs = {"truncation": True, "max_length": 512}
en_texts = ["hello","goodbye"]
embeddings.embed(en_texts,**encode_kwargs)
if __name__ == '__main__': if __name__ == '__main__':
pytest.main([__file__]) pytest.main([__file__])