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Youngjun Lee

4 accepted papers

2026

Breaking the Reference Bottleneck via Learning to Rewrite Conversational Queries without Gold Reference Passages

ICML 2026poster

Conversational query reformulation (CQR) has become indispensable for improving retrieval in dialogue-based applications. However, existing approaches typically rely on reference passages for optimization, which are **impractical** to acquire in real-world scenarios. To address this limitation, we i…

Cited by 0SourceScholar
2025

RA-TTA: Retrieval-Augmented Test-Time Adaptation for Vision-Language Models

ICLR 2025poster

Vision-language models (VLMs) are known to be susceptible to distribution shifts between pre-training data and test data, and test-time adaptation (TTA) methods for VLMs have been proposed to mitigate the detrimental impact of the distribution shifts. However, the existing methods solely rely on th…

Cited by 0SourcePDFScholar
2024

One Size Fits All for Semantic Shifts: Adaptive Prompt Tuning for Continual Learning

ICML 2024poster

In real-world continual learning (CL) scenarios, tasks often exhibit intricate and unpredictable semantic shifts, posing challenges for *fixed* prompt management strategies which are tailored to only handle semantic shifts of *uniform* degree (i.e., uniformly mild or uniformly abrupt). To address th…

2022

Meta-Query-Net: Resolving Purity-Informativeness Dilemma in Open-set Active Learning

NeurIPS 2022accept

Unlabeled data examples awaiting annotations contain open-set noise inevitably. A few active learning studies have attempted to deal with this open-set noise for sample selection by filtering out the noisy examples. However, because focusing on the purity of examples in a query set leads to overlook…