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Losses & Metrics

Permutation invariant training (PIT) made easy

Asteroid supports regular Permutation Invariant Training (PIT), it’s extension using Sinkhorn algorithm (SinkPIT) as well as Mixture Invariant Training (MixIT).

PIT

MixIT

SinkPIT

Available loss functions

PITLossWrapper supports three types of loss function. For “easy” losses, we implement the three types (pairwise point, single-source loss and multi-source loss). For others, we only implement the single-source loss which can be aggregated into both PIT and nonPIT training.

MSE

SDR

PMSQE

STOI

MultiScale Spectral Loss

Deep clustering (Affinity) loss

Computing metrics

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