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[utils] sparse_matrix_add_unique_columns_alias, adds the actual column indices to hashtable/array and aliases those in the table from 1 to N (where N is the number of unique columns in this batch). This way it's compatible with smaller matrices of batch weights.

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Al
2017-04-02 13:48:46 -04:00
parent a2563a4dcd
commit 96e1ca5e89
2 changed files with 60 additions and 16 deletions
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4
src/sparse_matrix_utils.h
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@@ -8,6 +8,8 @@
sparse_matrix_t *sparse_matrix_new_from_matrix(double_matrix_t *matrix);
uint32_array *sparse_matrix_unique_columns(sparse_matrix_t *matrix);
bool sparse_matrix_add_unique_columns(sparse_matrix_t *matrix, khash_t(int_set) *unique_columns, uint32_array *array);
bool sparse_matrix_add_unique_columns(sparse_matrix_t *matrix, khash_t(int_uint32) *unique_columns, uint32_array *array);
bool sparse_matrix_alias_columns(sparse_matrix_t *matrix, khash_t(int_uint32) *unique_columns);
bool sparse_matrix_add_unique_columns_alias(sparse_matrix_t *matrix, khash_t(int_uint32) *unique_columns, uint32_array *array);
#endif