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51 lines
1.7 KiB
Cython
51 lines
1.7 KiB
Cython
# cython: profile=True
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# coding: utf8
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from preshed.maps import PreshMap
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cdef class KnowledgeBase:
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def __init__(self):
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self._entry_index = PreshMap()
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self._alias_index = PreshMap()
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self.mem = Pool()
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def __len__(self):
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return self.get_size_entities()
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def get_size_entities(self):
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return self._entries.size()
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def get_size_aliases(self):
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return self._aliases_table.size()
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def add_entity(self, unicode entity_id, float prob, vectors=None, features=None):
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cdef hash_t id_hash = hash_string(entity_id)
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# TODO: more friendly check for non-unique name
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if id_hash in self._entry_index:
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return
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cdef int32_t dummy_value = 342
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self.c_add_entity(entity_key=id_hash, prob=prob, vector_rows=&dummy_value, feats_row=dummy_value)
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# TODO self._vectors_table.get_pointer(vectors),
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# self._features_table.get(features))
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def add_alias(self, unicode alias, entities, probabilities):
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"""For a given alias, add its potential entities and prior probabilies to the KB."""
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cdef hash_t alias_hash = hash_string(alias)
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# TODO: check that alias hadn't been defined before
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# TODO: check that entity is already in this KB (entity_index is OK)
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# TODO: check sum(probabilities) <= 1
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# TODO: check len(entities) == len(probabilities)
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self.c_add_aliases(alias_key=alias_hash, entities=entities, probabilities=probabilities)
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def get_candidates(self, unicode alias):
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cdef hash_t alias_hash = hash_string(alias)
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alias_index = <int64_t>self._alias_index.get(alias_hash)
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return self._aliases_table[alias_index]
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