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Shasha Li

19 accepted papers

2026

Beyond Plain Demos: A Demo-Centric Anchoring Paradigm for In-Context Learning in Alzheimer’s Disease Detection

AAAI 2026technical

Detecting Alzheimer’s disease (AD) from narrative transcripts challenges large language models (LLMs): pre-training rarely covers this out-of-distribution task, and all transcript demos describe the same scene, producing highly homogeneous contexts. These factors cripple both the model’s built-in ta

Cited by 0SourcePDFScholar
2026

Leveraging Image as Compressed Visual Prompt and Hierarchical Visual Knowledge for Effective Image Utilization in MLLMs

AAAI 2026technical

Multimodal Large Language Models (MLLMs) integrate text and images for complex reasoning tasks, but efficiently utilizing image remains a challenge due to redundancy and noise. Traditional methods take the entire image features as visual prompt into the MLLMs, leading to excessive visual tokens tha

Cited by 0SourcePDFScholar
2026

Where Does Vision Meet Language? Understanding and Refining Visual Fusion in MLLMs via Contrastive Attention

CVPR 2026

Multimodal Large Language Models (MLLMs) have achieved remarkable progress in vision-language understanding, yet how they internally integrate visual and textual information remains poorly understood. To bridge this gap, we perform a systematic layer-wise masking analysis across multiple architectur

Cited by 0SourceScholar
2025

R2A-TLS: Reflective Retrieval-Augmented Timeline Summarization with Causal-Semantic Integration

EMNLP 2025

Open-domain timeline summarization (TLS) faces challenges from information overload and data sparsity when processing large-scale textual streams. Existing methods struggle to capture coherent event narratives due to fragmented descriptions and often accumulate noise through iterative retrieval stra

Cited by 0SourcePDFScholar
2025

Rethinking Residual Distribution in Locate-then-Edit Model Editing

NeurIPS 2025poster

Model editing enables targeted updates to the knowledge of large language models (LLMs) with minimal retraining. Among existing approaches, locate-then-edit methods constitute a prominent paradigm: they first identify critical layers, then compute residuals at the final critical layer based on the t…

Cited by 0SourcecodeScholar
2025

SWEA: Updating Factual Knowledge in Large Language Models via Subject Word Embedding Altering

AAAI 2025technical

The general capabilities of large language models (LLMs) make them the infrastructure for various AI applications, but updating their inner knowledge requires significant resources. Recent model editing is a promising technique for efficiently updating a small amount of knowledge of LLMs and has att…

2025

Stand on The Shoulders of Giants: Building JailExpert from Previous Attack Experience

EMNLP 2025

Large language models (LLMs) generate human-aligned content under certain safety constraints. However, the current known technique “jailbreak prompt” can circumvent safety-aligned measures and induce LLMs to output malicious content. Research on Jailbreaking can help identify vulnerabilities in LLMs

Cited by 0SourcePDFScholar
2025

Towards Verifiable Text Generation with Generative Agent

AAAI 2025technical

Text generation with citations makes it easy to verify the factuality of Large Language Models’ (LLMs) generations. Existing one-step generation studies expose distinct shortages in answer refinement and in-context demonstration matching. In light of these challenges, we propose R2-MGA, a Retrieval…

Cited by 0SourcePDFScholar
2024

A Dual-Way Enhanced Framework from Text Matching Point of View for Multimodal Entity Linking

AAAI 2024technical

Multimodal Entity Linking (MEL) aims at linking ambiguous mentions with multimodal information to entity in Knowledge Graph (KG) such as Wikipedia, which plays a key role in many applications. However, existing methods suffer from shortcomings, including modality impurity such as noise in raw image…

2024

PMET: Precise Model Editing in a Transformer

AAAI 2024technical

Model editing techniques modify a minor proportion of knowledge in Large Language Models (LLMs) at a relatively low cost, which have demonstrated notable success. Existing methods assume Transformer Layer (TL) hidden states are values of key-value memories of the Feed-Forward Network (FFN). They usu…

2024

Recommending Missed Citations Identified by Reviewers: A New Task, Dataset and Baselines

COLING 2024main

Citing comprehensively and appropriately has become a challenging task with the explosive growth of scientific publications. Current citation recommendation systems aim to recommend a list of scientific papers for a given text context or a draft paper. However, none of the existing work focuses on a…

2022

Context-Aware Transfer Attacks for Object Detection

AAAI 2022technical

Blackbox transfer attacks for image classifiers have been extensively studied in recent years. In contrast, little progress has been made on transfer attacks for object detectors. Object detectors take a holistic view of the image and the detection of one object (or lack thereof) often depends on ot…

2022

Few-shot Named Entity Recognition with Entity-level Prototypical Network Enhanced by Dispersedly Distributed Prototypes

COLING 2022main

Few-shot named entity recognition (NER) enables us to build a NER system for a new domain using very few labeled examples. However, existing prototypical networks for this task suffer from roughly estimated label dependency and closely distributed prototypes, thus often causing misclassifications. T…

Cited by 36SourcePDFScholar
2022

Multi-Document Scientific Summarization from a Knowledge Graph-Centric View

COLING 2022main

Multi-Document Scientific Summarization (MDSS) aims to produce coherent and concise summaries for clusters of topic-relevant scientific papers. This task requires precise understanding of paper content and accurate modeling of cross-paper relationships. Knowledge graphs convey compact and interpreta…

2021

Adversarial Attacks on Black Box Video Classifiers: Leveraging the Power of Geometric Transformations

NeurIPS 2021poster

When compared to the image classification models, black-box adversarial attacks against video classification models have been largely understudied. This could be possible because, with video, the temporal dimension poses significant additional challenges in gradient estimation. Query-efficient black…

2021

Exploiting Multi-Object Relationships for Detecting Adversarial Attacks in Complex Scenes

ICCV 2021poster

Vision systems that deploy Deep Neural Networks (DNNs) are known to be vulnerable to adversarial examples. Recent research has shown that checking the intrinsic consistencies in the input data is a promising way to detect adversarial attacks (e.g., by checking the object co-occurrence relationships…

Cited by 33PDFScholar
2021

Multi-Expert Adversarial Attack Detection in Person Re-Identification Using Context Inconsistency

ICCV 2021poster

The success of deep neural networks (DNNs) has promoted the widespread applications of person re-identification (ReID). However, ReID systems inherit the vulnerability of DNNs to malicious attacks of visually inconspicuous adversarial perturbations. Detection of adversarial attacks is, therefore, a…

Cited by 44PDFScholar
2020

Connecting the Dots: Detecting Adversarial Perturbations Using Context Inconsistency

ECCV 2020poster

There has been a recent surge in research on adversarial perturbations that defeat Deep Neural Networks (DNNs); most of these attacks target object classifiers. Inspired by the observation that humans are able to recognize objects that appear out of place in a scene or along with other unlikely obje…

Cited by 52SourcePDFScholar
2020

Span-based Joint Entity and Relation Extraction with Attention-based Span-specific and Contextual Semantic Representations

COLING 2020main

Span-based joint extraction models have shown their efficiency on entity recognition and relation extraction. These models regard text spans as candidate entities and span tuples as candidate relation tuples. Span semantic representations are shared in both entity recognition and relation extraction…

Cited by 88SourcePDFScholar