tfr.keras.losses.DCGLambdaWeight

Keras serializable class for DCG.

topn (int) The topn for the DCG metric.
gain_fn (function) Transforms labels.
rank_discount_fn (function) The rank discount function.
normalized (bool) If True, normalize weight by the max DCG.
smooth_fraction (float) parameter to control the contribution from LambdaMART.

Methods

get_config

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individual_weights

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See _LambdaWeight.

pair_weights

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See _LambdaWeight.