Yuzo Senda

Acoustic event detection based on non-negative matrix factorization with mixtures of local dictionaries and activation aggregation

This paper proposes a new non-negative matrix factorization (NMF) based acoustic event detection (AED) method with mixtures of local dictionaries (MLD) and activation aggregation. One of the key problems of conventional NMF-based methods is instability of activations due to redundancy of a region sp…