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oborchers/SIF_Variant_4.py

Created June 8, 2019 09:32
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SIF_Variant_4.py
def sif_embeddings(sentences, model):
""" Uses a pre-computed list of indices and skips the use of strings alltogether
"""
vectors = model.wv.sif_vectors
output = np.zeros(shape=(len(sentences), model.vector_size), dtype=REAL)
for i,s in enumerate(sentences):
output[i] = np.sum(vectors[s], axis=0) * ( (1/len(s)) if len(s)>0 else 1)
return output.astype(REAL)
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