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Zhihua Wei

23 accepted papers

2026

A Unified Approach to Interpreting Knowledge Distillation for Large Language Models via Interactions

ICML 2026poster

Despite the success of knowledge distillation (KD) in Large Language Models (LLMs), the underlying mechanism behind its efficacy remains unclear. In this paper, we propose a unified approach to explore the common mechanism of various KD methods using interactions. Specifically, we decompose the outp…

Cited by 0SourceScholar
2026

Evaluating and Explaining Prompt Sensitivity of LLMs Using Interactions

ICML 2026poster

The remarkable capabilities of large language models (LLMs) are often undermined by their instability. Even subtle and semantically irrelevant changes in prompts can cause dramatic fluctuations in performance, a phenomenon known as prompt sensitivity. Previous studies typically evaluate prompt sensi…

Cited by 0SourceScholar
2026

PICACO: Pluralistic In-Context Value Alignment via Total Correlation Optimization

ICML 2026poster

In-Context Learning has shown great potential for aligning Large Language Models (LLMs) with human values, helping reduce harmful outputs and accommodate diverse preferences without costly post-training, known as *In-Context Alignment* (ICA). However, LLMs' comprehension of input prompts remains agn…

Cited by 0SourceScholar
2025

A Unified Approach to Interpreting Self-supervised Pre-training Methods for 3D Point Clouds via Interactions

CVPR 2025highlight

Recently, many self-supervised pre-training methods have been proposed to improve the performance of deep neural networks (DNNs) for 3D point clouds processing. However, the common mechanism underlying the effectiveness of different pre-training methods remains unclear. In this paper, we use game-th…

Cited by 0SourcePDFScholar
2025

COSMO: Combination of Selective Memorization for Low-cost Vision-and-Language Navigation

ICCV 2025poster

Vision-and-Language Navigation (VLN) tasks have gained prominence within artificial intelligence research due to their potential application in fields like home assistants. Many contemporary VLN approaches, while based on transformer architectures, have increasingly incorporated additional component…

2025

DeTAM: Defending LLMs Against Jailbreak Attacks via Targeted Attention Modification

ACL 2025finding

With the widespread adoption of Large Language Models (LLMs), jailbreak attacks have become an increasingly pressing safety concern. While safety-aligned LLMs can effectively defend against normal harmful queries, they remain vulnerable to such attacks. Existing defense methods primarily rely on fin…

2025

Improving Prediction Certainty Estimation for Reliable Early Exiting via Null Space Projection

IJCAI 2025

Early exiting has demonstrated great potential in accelerating the inference of pre-trained language models (PLMs) by enabling easy samples to exit at shallow layers, eliminating the need for executing deeper layers. However, existing early exiting methods primarily rely on class-relevant logits to

2025

Interpreting Arithmetic Reasoning in Large Language Models using Game-Theoretic Interactions

NeurIPS 2025poster

In recent years, large language models (LLMs) have made significant advancements in arithmetic reasoning. However, the internal mechanism of how LLMs solve arithmetic problems remains unclear. In this paper, we propose explaining arithmetic reasoning in LLMs using game-theoretic interactions. Speci…

Cited by 0SourceScholar
2025

Leveraging Debiased Cross-modal Attention Maps and Code-based Reasoning for Zero-shot Referring Expression Comprehension

ICCV 2025poster

Zero-shot Referring Expression Comprehension (REC) aims at locating an object described by a natural language query without training on task-specific datasets. Current approaches often utilize Vision-Language Models (VLMs) to perform region-text matching based on region proposals. However, this may…

Cited by 0SourcePDFScholar
2025

MMUnlearner: Reformulating Multimodal Machine Unlearning in the Era of Multimodal Large Language Models

ACL 2025finding

Recent progress in Machine Unlearning (MU) has introduced solutions for the selective removal of private or sensitive information encoded within deep neural networks. Nonetheless, MU for Multimodal Large Language Models (MLLMs) remains in its nascent phase. Therefore, we propose to **reformulate the…

2025

Raising the Bar: Investigating the Values of Large Language Models via Generative Evolving Testing

ICML 2025poster

*Warning: Contains harmful model outputs.* Despite significant advancements, the propensity of Large Language Models (LLMs) to generate harmful and unethical content poses critical challenges. Measuring value alignment of LLMs becomes crucial for their regulation and responsible deployment. Althoug…

Cited by 5SourcePDFScholar
2024

DAMRO: Dive into the Attention Mechanism of LVLM to Reduce Object Hallucination

EMNLP 2024main

Despite the great success of Large Vision-Language Models (LVLMs), they inevitably suffer from hallucination. As we know, both the visual encoder and the Large Language Model (LLM) decoder in LVLMs are Transformer-based, allowing the model to extract visual information and generate text outputs via…

2024

Extending Implicit Neural Representations for Text-to-Image Generation

ICASSP 2024accepted

Implicit neural representations (INRs) have demonstrated their effectiveness in continuous modeling for image signals. However, INRs typically operate in a continuous space, which makes it difficult to integrate the discrete symbols and structures inherent in human language. Despite this, text featu…

Cited by 0SourceScholar
2024

On the Essence and Prospect: An Investigation of Alignment Approaches for Big Models

IJCAI 2024poster

Big models have achieved revolutionary breakthroughs in the field of AI, but they also pose potential ethical and societal risks to humans. Addressing such problems, alignment technologies were introduced to make these models conform to human preferences and values. Despite the considerable advancem…

Cited by 12SourcePDFScholar
2023

Large-Scale and Multi-Perspective Opinion Summarization with Diverse Review Subsets

EMNLP 2023long findings

Opinion summarization is expected to digest larger review sets and provide summaries from different perspectives. However, most existing solutions are deficient in epitomizing extensive reviews and offering opinion summaries from various angles due to the lack of designs for information selection. T…

Cited by 0SourcecodeScholar
2023

ToViLaG: Your Visual-Language Generative Model is Also An Evildoer

EMNLP 2023long main

Recent large-scale Visual-Language Generative Models (VLGMs) have achieved unprecedented improvement in multimodal image/text generation. However, these models might also generate toxic content, e.g., offensive text and pornography images, raising significant ethical risks. Despite exhaustive studie…

Cited by 0SourcecodeScholar
2022

CHAE: Fine-Grained Controllable Story Generation with Characters, Actions and Emotions

COLING 2022main

Story generation has emerged as an interesting yet challenging NLP task in recent years. Some existing studies aim at generating fluent and coherent stories from keywords and outlines; while others attempt to control the global features of the story, such as emotion, style and topic. However, these…

2022

Multi-View Self-Attention Based Transformer for Speaker Recognition

ICASSP 2022accepted

Initially developed for natural language processing (NLP), Transformer model is now widely used for speech processing tasks such as speaker recognition, due to its powerful sequence modeling capabilities. However, conventional self-attention mechanisms are originally designed for modeling textual se…

Cited by 0SourceScholar
2022

SpeechT5: Unified-Modal Encoder-Decoder Pre-Training for Spoken Language Processing

ACL 2022long

Motivated by the success of T5 (Text-To-Text Transfer Transformer) in pre-trained natural language processing models, we propose a unified-modal SpeechT5 framework that explores the encoder-decoder pre-training for self-supervised speech/text representation learning. The SpeechT5 framework consists…

2021

Interpretable Compositional Convolutional Neural Networks

IJCAI 2021poster

This paper proposes a method to modify a traditional convolutional neural network (CNN) into an interpretable compositional CNN, in order to learn filters that encode meaningful visual patterns in intermediate convolutional layers. In a compositional CNN, each filter is supposed to consistently repr…

2021

Verifiability and Predictability: Interpreting Utilities of Network Architectures for Point Cloud Processing

CVPR 2021poster

In this paper, we diagnose deep neural networks for 3D point cloud processing to explore utilities of different network architectures. We propose a number of hypotheses on the effects of specific network architectures on the representation capacity of DNNs. In order to prove the hypotheses, we desig…

Cited by 4PDFScholar
2020

3D-Rotation-Equivariant Quaternion Neural Networks

ECCV 2020poster

This paper proposes a set of rules to revise various neural networks for 3D point cloud processing to rotation-equivariant quaternion neural networks (REQNNs). We find that when a neural network uses quaternion features, the network feature naturally has the rotation-equivariance property. Rotation…

Cited by 68SourcePDFScholar