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Audio and Acoustic Signal Processing
AUD-P1.3
Poster
Deep Learning for Audio Classification

SPIDERnet: ATTENTION NETWORK FOR ONE-SHOT ANOMALY DETECTION IN SOUNDS

Yuma Koizumi

Date & Time

Tue, May 5, 2020

12:30 pm – 2:30 pm

Location

On-Demand

Abstract

We propose a similarity function for one-shot anomaly detection in sounds (ADS) called SPecific anomaly IDentifiER network (SPIDERnet). In ADS systems, since overlooking an anomaly may result in serious incidents, we need to update such systems using an (often only one) overlooked anomalous sample. A previous study proposed the use of memory-based one-shot learning. A problem with this previous method is that it can detect only short anomalous sounds such as collision sounds because its similarity function is based on a naive mean-squared-error between the input and memorized spectrogram. To detect various anomalous sounds, SPIDERnet consists of (i) a neural network-based feature extractor for measuring similarity in embedded space and (ii) attention mechanisms for absorbing time-frequency stretching. Experimental results on two public datasets indicate that SPIDERnet outperforms conventional methods and robustly detects various anomalous sounds.


Presenter

Yuma Koizumi

NTT Corporation
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Session Chair