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DistanceMeasureType(value)
Values: DISTANCE_MEASURE_TYPE_UNSPECIFIED (0): Should not be set. SQUARED_L2_DISTANCE (1): Euclidean (L_2) Distance. COSINE_DISTANCE (2): Cosine Distance. Defined as 1 - cosine similarity.
We strongly suggest using DOT_PRODUCT_DISTANCE +
UNIT_L2_NORM instead of COSINE distance. Our algorithms have
been more optimized for DOT_PRODUCT distance which, when
combined with UNIT_L2_NORM, is mathematically equivalent to
COSINE distance and results in the same ranking.
DOT_PRODUCT_DISTANCE (3):
Dot Product Distance. Defined as a negative
of the dot product.
Methods
DistanceMeasureType
DistanceMeasureType(value)
Values: DISTANCE_MEASURE_TYPE_UNSPECIFIED (0): Should not be set. SQUARED_L2_DISTANCE (1): Euclidean (L_2) Distance. COSINE_DISTANCE (2): Cosine Distance. Defined as 1 - cosine similarity.
We strongly suggest using DOT_PRODUCT_DISTANCE +
UNIT_L2_NORM instead of COSINE distance. Our algorithms have
been more optimized for DOT_PRODUCT distance which, when
combined with UNIT_L2_NORM, is mathematically equivalent to
COSINE distance and results in the same ranking.
DOT_PRODUCT_DISTANCE (3):
Dot Product Distance. Defined as a negative
of the dot product.