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Optimize Poincare model training #2589

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merged 3 commits into from Sep 7, 2019
Merged

Optimize Poincare model training #2589

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09209c8
fix list operation
koiizukag Sep 3, 2019
dc4555b
fix variable name
koiizukag Sep 3, 2019
b7bf63f
fix list comprehension
koiizukag Sep 4, 2019
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4 changes: 3 additions & 1 deletion gensim/models/poincare.py
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Expand Up @@ -567,10 +567,12 @@ def _handle_duplicates(vector_updates, node_indices):

"""
counts = Counter(node_indices)
node_dict = defaultdict(list)
[node_dict[node_index].append(i) for i, node_index in enumerate(node_indices)]
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for node_index, count in counts.items():
if count == 1:
continue
positions = [i for i, index in enumerate(node_indices) if index == node_index]
positions = node_dict[node_index]
# Move all updates to the same node to the last such update, zeroing all the others
vector_updates[positions[-1]] = vector_updates[positions].sum(axis=0)
vector_updates[positions[:-1]] = 0
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