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Meng Lin

4 accepted papers

2026

ActiShade: Activating Overshadowed Knowledge to Guide Multi-Hop Reasoning in Large Language Models

AAAI 2026technical

In multi-hop reasoning, multi-round retrieval-augmented generation (RAG) methods typically rely on LLM-generated content as the retrieval query. However, these approaches are inherently vulnerable to knowledge overshadowing—a phenomenon where critical information is overshadowed during generation.

Cited by 0SourcePDFScholar
2023

ConTextual Masked Auto-Encoder for Dense Passage Retrieval

AAAI 2023technical

Dense passage retrieval aims to retrieve the relevant passages of a query from a large corpus based on dense representations (i.e., vectors) of the query and the passages. Recent studies have explored improving pre-trained language models to boost dense retrieval performance. This paper proposes CoT…

2023

Good Is Bad: Causality Inspired Cloth-Debiasing for Cloth-Changing Person Re-Identification

CVPR 2023poster

Entangled representation of clothing and identity (ID)-intrinsic clues are potentially concomitant in conventional person Re-IDentification (ReID). Nevertheless, eliminating the negative impact of clothing on ID remains challenging due to the lack of theory and the difficulty of isolating the exact…

2022

Text Smoothing: Enhance Various Data Augmentation Methods on Text Classification Tasks

ACL 2022short

Before entering the neural network, a token needs to be converted to its one-hot representation, which is a discrete distribution of the vocabulary. Smoothed representation is the probability of candidate tokens obtained from the pre-trained masked language model, which can be seen as a more informa…