[MRG] Poincare Model implementation #1696
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gensim/models/poincare.py
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| Whether the input array contains any duplicates. | ||
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| """ | ||
| seen = set() |
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return len(array) != len(set(array)) simpler. Probably not even worth adding a method.
gensim/models/poincare.py
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| Parameters | ||
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| train_data : iterable of (str, str) |
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str is ambiguous for Python 2 vs 3. Better to say unicode or bytes instead.
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Both unicode and bytes are allowed here. Wherever this is true, I've used str, wherever a specific type is required returned, I've used unicode/bytes. Does that sound okay?
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Yes, perfect. Are you sure it works correctly with bytes, though? I suppose if we train on bytes we'll end up with a bytes based model. I wonder if that's common for other gensim models. Won't that cause unexpected behavior with some KeyedVectors calls?
gensim/models/poincare.py
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| node_relations = defaultdict(set) # Mapping from node index to its related node indices | ||
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| logger.info("Loading relations from train data..") | ||
| for hypernym_pair in self.train_data: |
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Please rename hypernym_pair to something more generic such as relation.
gensim/models/poincare.py
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| Vectors of all nodes `u` in the batch. | ||
| Expected shape (batch_size, dim). | ||
| vectors_v : numpy.array | ||
| Vectors of all hypernym nodes `v` and negatively sampled nodes `v'`, |
gensim/models/poincare.py
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| class PoincareRelations(object): | ||
| """Class to stream hypernym relations for `PoincareModel` from a tsv-like file.""" |
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just "relations", here and elsewhere
gensim/models/poincare.py
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| """Class to stream hypernym relations for `PoincareModel` from a tsv-like file.""" | ||
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| def __init__(self, file_path, encoding='utf8', delimiter='\t'): | ||
| """Initialize instance from file containing one hypernym pair per line. |
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hypernym pair -> relation (here and elsewhere)
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I've added the rst files and made some fixes for python2 bugs. The only failing test is the one that requires autograd now (due to it being missing from test dependencies). With autograd added to test dependencies, the build errors (due to some MKL error, as you mentioned). |
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@jayantj maybe remove this test (because we can't run it correctly in CI)? |
gensim/models/poincare.py
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| def __init__( | ||
| self, train_data, size=50, alpha=0.1, negative=10, workers=1, | ||
| epsilon=1e-5, burn_in=10, burn_in_alpha=0.01, init_range=(-0.001, 0.001), seed=0): | ||
| """Initialize and train a Poincare embedding model from an iterable of transitive closure relations. |
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Is the transitive closure a requirement? If not, let's just say "iterable of relations".
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@menshikh-iv I've instead added a skiptest in case autograd is not installed, that way we can continue to check if the test runs locally, making development easier. Does that seem okay? |
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Pure Python implementation of the Poincare model from [1].
TODO -
Follow up PR: #1700
[1] Poincaré Embeddings for Learning Hierarchical Representations