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Pre-trained Vision and Language Transformers Are Few-Shot Incremental Learners

Keon Hee Park · Kyungwoo Song · Gyeong-Moon Park

Arch 4A-E Poster #423
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Fri 21 Jun 10:30 a.m. PDT — noon PDT

Abstract: Few-Shot Class Incremental Learning (FSCIL) is a task that requires a model to learn new classes incrementally without forgetting when only a few samples for each class are given. FSCIL encounters two significant challenges: catastrophic forgetting and overfitting, and these challenges have driven prior studies to primarily rely on shallow models, such as ResNet-18. Even though their limited capacity can mitigate both forgetting and overfitting issues, it leads to inadequate knowledge transfer during few-shot incremental sessions. In this paper, we argue that $\textit{large models such as vision and language transformers pre-trained}$ $\textit{on large datasets can be excellent few-shot incremental learners.}$ To this end, we propose a novel FSCIL framework called $\textbf{PriViLege}$, $\textbf{Pr}$e-tra$\textbf{i}$ned $\textbf{Vi}$sion and $\textbf{L}$anguage transformers with prompting functions and knowl$\textbf{e}$d$\textbf{ge}$ distillation. Our framework effectively addresses the challenges of catastrophic forgetting and overfitting in large models through new pre-trained knowledge tuning (PKT) and two losses: entropy-based divergence loss and semantic knowledge distillation loss.Experimental results show that the proposed PriViLege significantly outperforms the existing state-of-the-art methods with a large margin, \textit{e.g.}, $+9.38$% in CUB200, $+20.58$% in CIFAR-100, and $+13.36$% in miniImageNet. The code will be publicly released after the review.

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