Browsing by Author "Provost, Kaiya"
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- A Simple Interpretable Transformer for Fine-Grained Image Classification and AnalysisPaul, Dipanjyoti; Chowdhury, Arpita; Xiong, Xinqi; Chang, Feng-Ju; Carlyn, David; Stevens, Samuel; Provost, Kaiya; Karpatne, Anuj; Carstens, Bryan; Rubenstein, Daniel I.; Stewart, Charles V.; Berger-Wolf, Tanya Y.; Su, Yu; Chao, Wei-Lun (2023)We present a novel usage of Transformers to make image classification interpretable. Unlike mainstream classifiers that wait until the last fully-connected layer to incorporate class information to make predictions, we investigate a proactive approach, asking each class to search for itself in an image. We realize this idea via a Transformer encoder-decoder inspired by DEtection TRansformer (DETR). We learn “class-specific” queries (one for each class) as input to the decoder, enabling each class to localize its patterns in an image via cross-attention. We name our approach INterpretable TRansformer (INTR), which is fairly easy to implement and exhibits several compelling properties. We show that INTR intrinsically encourages each class to attend distinctively; the cross-attention weights thus provide a faithful interpretation of the prediction. Interestingly, via “multi-head” cross-attention, INTR could identify different “attributes” of a class, making it particularly suitable for fine-grained classification and analysis, which we demonstrate on eight datasets. Our code and pre-trained model are publicly accessible at https://github.com/Imageomics/INTR.