Cross-corpus open set bird species recognition by vocalization

Jiangjian Xie,Luyang Zhang,Junguo Zhang,Yanyun Zhang,Björn W. Schuller

ECOLOGICAL INDICATORS（2023）

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摘要

•Instance Frequency Normalization (IFN) is proposed to eliminate instance-specific frequency differences across different corpora.•The threshold-based Probabilistic Linear Discriminant Analysis (PLDA) is introduced to discover the unknown species.•An x-vector feature extraction model integrated TDNN and LSTM is designed to better capture sequence information.•Focusing on frequency information is more beneficial for cross-corpus open set bird species recognition by vocalization.

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关键词

Bird species recognition,Cross-corpus recognition,Open set,Vocalization,Instance frequency normalization

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