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Commits on Jan 19, 2017

• Allow HashTableOP to map int64 to int64.

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Commits on Dec 13, 2016

• Add sparse_column_with_vocabulary_file, to specify a feature column that transform string features to IDs, where the mapping is defined by a vocabulary file.

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• Added index_to_string_table which returns a lookup table that maps indices to strings where the mapping set specified via a vocabulary file or a mapping tensor.

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Commits on Dec 12, 2016

• Add string_to_index_table, which returns a lookup table that matches strings to indices.

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Commits on Dec 8, 2016

• Add IdTableWithHashBuckets to assign out-of-vocabulary hash buckets for terms not covered by the wrapped lookup table.

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Commits on Dec 7, 2016

• Allow HashTable op support string to string mapping.

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• Minor updates in lookup table names scopes.

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Commits on Oct 12, 2016

• Clarify and fix tf.case documentation.

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Commits on Aug 10, 2016

• Add string_split operation which splits string tensors given a delimiter and returns it as SparseTensors.

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Commits on Jul 27, 2016

• Log values of the config used by the Estimator.

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Commits on Jun 21, 2016

• Update feature_column to use string_to_hash_bucket_fast instead of the deprecated and not stable string_to_hash_bucket.

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• Use string_to_hash_bucket_fast in feature_column

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Commits on Jun 17, 2016

• Add lookup table initializer from text file.

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Commits on Jun 10, 2016

• Temporarily remove deprecation warning of tf.string_to_hash_bucket.

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Commits on Jun 3, 2016

• Expose strong_hash.h and fingerprint.h

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Commits on May 24, 2016

• Add a strong keyed hash function based on highwayhash's siphash.

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Commits on May 17, 2016

• Added string_to_hash_bucket_stable, which uses fingerprint64

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Commits on May 13, 2016

• Add farmhash fingerprint64 into hash.h and include corresponding dependencies.

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Commits on Mar 16, 2016

• Add tf.contrib.lookup.string_to_index and tf.contrib.lookup.index_to_string to map strings to IDs and viceversa.

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• - Add a generic immutable hash table op that is initialized once and used to map key tensors to values.

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Commits on Mar 15, 2016

• Ensure that keys and values, in HashTable::Insert, are validated in the face of asynchronous

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• Ensure that keys, in HashTable::Find, are validated in the face of asynchronous

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Commits on Mar 14, 2016

• Ensure the table size is returned only when the table is initialized.

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Commits on Jan 12, 2016

• Update generated Op docs.

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Commits on Jan 7, 2016

• Update init_ops to also support initialization of float64 variables.

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Commits on Dec 18, 2015

• Improve shape inference of embedding lookup sparse when using weights.

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• Add asset filepaths graph key.

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