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Explainability of CNN Based Classification Models for Acoustic Signal

Created by
  • Haebom

Author

Zubair Faruqui, Mackenzie S. McIntire, Rahul Dubey, Jay McEntee

Outline

This paper explores the potential of explainable artificial intelligence (XAI) in the field of bioacoustics. To analyze bird sounds, which show significant geographical variation across North America, we transformed acoustic signals into spectrogram images and trained a classification model using a deep convolutional neural network (CNN). To interpret the model's predictions, which achieved 94.8% accuracy, we applied XAI techniques such as LIME, SHAP, DeepLIFT, and Grad-CAM, and integrated the results from different techniques to obtain more complete and interpretable insights. We demonstrate that combining various XAI techniques can improve model reliability and interoperability, suggesting that this approach can be applied to other domain-specific tasks.

Takeaways, Limitations

Takeaways:
We present the potential application of XAI techniques in the field of bioacoustics.
We demonstrate that combining different XAI techniques can improve the completeness and reliability of model interpretation.
It extends the applicability of XAI to various domain-specific tasks, not just acoustic signal analysis.
We present a method to increase the confidence in the prediction results of deep learning models.
Limitations:
The study was limited to a specific bird species, so further research is needed to determine generalizability.
There is a lack of discussion on the Limitations of the XAI techniques used. (A comparative analysis of the pros and cons of each technique is needed.)
Additional research may be needed to compare and analyze other XAI techniques.
Further research is needed to determine whether the results of this study can be applied to other species or other acoustic data.
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