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Fix error when encoding empty set of strings with convert_to_tensor=True #1775

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merged 2 commits into from
Dec 18, 2023
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Fix error when encoding empty set of strings with convert_to_tensor=True #1775

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1a919cc
Fix error when encoding empty set of strings with convert_to_tensor=True
oToToT Dec 2, 2022
2048166
Place common behaviour in if-branch
tomaarsen Dec 18, 2023
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5 changes: 4 additions & 1 deletion sentence_transformers/SentenceTransformer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -192,7 +192,10 @@ def encode(self, sentences: Union[str, List[str]],
all_embeddings = [all_embeddings[idx] for idx in np.argsort(length_sorted_idx)]

if convert_to_tensor:
all_embeddings = torch.stack(all_embeddings)
if len(all_embeddings) == 0:
all_embeddings = torch.Tensor()
else:
all_embeddings = torch.stack(all_embeddings)
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elif convert_to_numpy:
all_embeddings = np.asarray([emb.numpy() for emb in all_embeddings])

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