← Search

Jiwei Wei

11 accepted papers

2026

ALTER: Asymmetric LoRA for Token-Entropy-Guided Unlearning of LLMs

AAAI 2026technical

Large language models (LLMs) have advanced to encompass extensive knowledge across diverse domains. Yet controlling what a LLMs should not know is important for ensuring alignment and thus safe use. However, effective unlearning in LLMs is difficult due to the fuzzy boundary between knowledge retent

Cited by 0SourcePDFScholar
2026

DWTSG: Parameter-Efficient Fine-Tuning of Large Pre-trained Models via Discrete Wavelet Transform and Subband Guidance

AAAI 2026technical

Fully fine-tuning large pre-trained models for each downstream task is impractical due to prohibitive memory, computation, and storage costs. Although parameter-efficient fine-tuning (PEFT) methods address this issue, leading methods like LoRA still exhibit linear scaling of trainable parameters wit

Cited by 0SourcePDFScholar
2026

Domain Adaptive Object Detection via Dynamic Causal Refinement

ICML 2026poster

Domain Adaptive Object Detection (DAOD) addresses the challenge of transferring object detectors from labeled source domains to unlabeled target domains. Existing domain adaptation methods primarily rely on feature distribution alignment, which enhances domain-invariant features (statistical invaria…

Cited by 0SourceScholar
2026

From Talking to Singing: A New Challenge for Audio-Visual Deepfake Detection

ICML 2026poster

With rapid advances in audio-visual generative models, reliable forgery detection becomes increasingly critical. Existing methods for audio-visual deepfake detection typically rely on cross-modal inconsistencies. In singing, rhythmic vocalization weakens this coupling and introduces a nontrivial dom…

Cited by 0SourceScholar
2026

MM-R1: Unleashing the Power of Unified Multimodal Large Language Models for Personalized Image Generation

AAAI 2026technical

Multimodal Large Language Models (MLLMs) with unified architectures excel across a wide range of vision-language tasks, yet aligning them with personalized image generation remains a significant challenge. Existing methods for MLLMs are frequently subject-specific, demanding a data-intensive fine-tu

Cited by 0SourcePDFScholar
2026

ViTPrompt: Training-Free Prompt Refinement with Visual Tokens for Open-Vocabulary Detection

CVPR 2026

Test-Time Adaptive Object Detection (TTAOD) aims to maintain detection performance under distribution shifts without retraining. While recent vision-language models enable open-vocabulary detection, existing TTAOD methods--whether closed-set or open-vocabulary--focus exclusively on improving classif

Cited by 0SourceScholar
2025

CDTR: Semantic Alignment for Video Moment Retrieval Using Concept Decomposition Transformer

AAAI 2025technical

Video Moment Retrieval (VMR) involves locating specific moments within a video based on natural language queries. However, existing VMR methods that employ various strategies for cross-modal alignment still face challenges such as limited understanding of fine-grained semantics, semantic overlap, an…

Cited by 0SourcePDFScholar
2025

SyncGaussian: Stable 3D Gaussian-Based Talking Head Generation with Enhanced Lip Sync via Discriminative Speech Features

IJCAI 2025

Generating high-fidelity talking heads that maintain stable head poses and achieve robust lip sync remains a significant challenge. Although methods based on 3D Gaussian Splatting (3DGS) offer a promising solution via point-based deformation, they suffer from inconsistent head dynamics and mismatche

Cited by 0SourcePDFScholar
2024

CDPNet: Cross-Modal Dual Phases Network for Point Cloud Completion

AAAI 2024technical

Point cloud completion aims at completing shapes from their partial. Most existing methods utilized shape’s priors information for point cloud completion, such as inputting the partial and getting the complete one through an encoder-decoder deep learning structure. However, it is very often to easi…

Cited by 7SourcePDFScholar
2023

Learning Semantic-Aware Knowledge Guidance for Low-Light Image Enhancement

CVPR 2023poster

Low-light image enhancement (LLIE) investigates how to improve illumination and produce normal-light images. The majority of existing methods improve low-light images via a global and uniform manner, without taking into account the semantic information of different regions. Without semantic priors,…

2020

Universal Weighting Metric Learning for Cross-Modal Matching

CVPR 2020poster

Cross-modal matching has been a highlighted research topic in both vision and language areas. Learning appropriate mining strategy to sample and weight informative pairs is crucial for the cross-modal matching performance. However, most existing metric learning methods are developed for unimodal mat…

Cited by 113PDFcodeScholar