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Wanchun Dou

17 accepted papers

2026

DIAA: A Decoding-Efficient Inference Acceleration Approach for On-Device Large Language Models

AAAI 2026technical

Large Language Models (LLMs) have revolutionized intelligent interactions, enabling mobile applications such as personal assistants on edge devices for local execution. Speculative decoding (SD) has emerged as a promising paradigm to accelerate LLM inference without compromising generation quality,

Cited by 0SourcePDFScholar
2026

Reference Recommendation Based Membership Inference Attack Against Hybrid-Based Recommender Systems

AAAI 2026technical

Recommender systems have been widely deployed across various domains such as e-commerce and social media, and intelligently suggest items like products and potential friends to users based on their preferences and interaction history, which are often privacy-sensitive. Recent studies have revealed t

Cited by 0SourcePDFScholar
2026

Retrieval-driven Reasoning for Deliberative Visual Classification

AAAI 2026technical

Vision-Language Models (VLMs) have demonstrated remarkable capabilities in visual classification tasks. Existing methods for enhancing VLMs on this task often rely heavily on direct category-to-image matching, which limits generalization and results in suboptimal performance. In addition, these meth

Cited by 0SourcePDFScholar
2025

A Fair Federated Learning Method for Handling Client Participation Probability Inconsistencies in Heterogeneous Environments

NeurIPS 2025poster

Federated learning (FL) is a distributed machine learning paradigm that enables multiple clients to collaboratively train a shared model without exposing their raw data. However, existing FL research has primarily focused on optimizing learning performance based on the assumption of uniform client p…

Cited by 0SourcecodeScholar
2025

Balancing User-Item Structure and Interaction with Large Language Models and Optimal Transport for Multimedia Recommendation

IJCAI 2025

The rapid growth of multimedia content has driven the development of recommender systems. Most previous work focuses on uncovering latent relationships among items to learn better representations. However, this approach does not sufficiently account for user affinities, potentially leading to an imb

2025

CLLMRec: Contrastive Learning with LLMs-based View Augmentation for Sequential Recommendation

IJCAI 2025

Sequential recommendation generates embedding representations from historical user-item interactions to recommend the next potential interaction item. Due to the complexity and variability of historical user-item interactions, extracting effective user features is quite challenging. Recent studies h

Cited by 0SourcePDFScholar
2025

DocKS-RAG: Optimizing Document-Level Relation Extraction through LLM-Enhanced Hybrid Prompt Tuning

ICML 2025poster

Document-level relation extraction (RE) aims to extract comprehensive correlations between entities and relations from documents. Most of existing works conduct transfer learning on pre-trained language models (PLMs), which allows for richer contextual representation to improve the performance. Howe…

Cited by 0SourcePDFScholar
2025

Enhancing Diffusion Model with Auxiliary Information Mining-Exploration and Efficient Sampling Mechanism for Sequential Recommendation

AAAI 2025technical

Sequential recommendation aims to capture the temporal dependencies of items in a user's historical interactions and make recommendations based on this. Previous generative methods addressed the issue of data not directly reflecting user preference uncertainty by modeling the distribution of latent…

Cited by 1SourcePDFScholar
2025

NLGT: Neighborhood-based and Label-enhanced Graph Transformer Framework for Node Classification

AAAI 2025technical

Graph Neural Networks (GNNs) are widely applied on graph-level tasks, such as node classification, link prediction and graph generation. Existing GNNs mostly adopt a message-passing mechanism to aggregate node information with their neighbors, which often makes node information similar after rounds…

2025

PFedCS: A Personalized Federated Learning Method for Enhancing Collaboration among Similar Classifiers

AAAI 2025technical

Personalized federated learning (PFL) has recently gained significant attention for its capability to address the poor convergence performance on highly heterogeneous data and the lack of personalized solutions of traditional federated learning (FL). Existing mainstream approaches either perform per…

Cited by 0SourcePDFScholar
2025

Policy Filtration for RLHF to Mitigate Noise in Reward Models

ICML 2025poster

While direct policy optimization methods exist, pioneering LLMs are fine-tuned with reinforcement learning from human feedback (RLHF) to generate better responses under the supervision of a reward model learned from preference data. One major challenge of RLHF is the inaccuracy of the intermediate r…

Cited by 0SourcePDFScholar
2025

Universal Backdoor Defense via Label Consistency in Vertical Federated Learning

IJCAI 2025

Backdoor attacks in vertical federated learning (VFL) are particularly concerning as they can covertly compromise VFL decision-making, posing a severe threat to critical applications of VFL. Existing defense mechanisms typically involve either label obfuscation during training or model pruning durin

Cited by 0SourcePDFScholar
2024

Attention Based Document-level Relation Extraction with None Class Ranking Loss

IJCAI 2024poster

Through document-level relation extraction (RE), the analysis of the global relation between entities in the text is feasible, and more comprehensive and accurate semantic information can be obtained. In document-level RE, the model needs to infer the implicit relations between two entities in diffe…

2024

Counterfactual User Sequence Synthesis Augmented with Continuous Time Dynamic Preference Modeling for Sequential POI Recommendation

IJCAI 2024poster

With the proliferation of Location-based Social Networks (LBSNs), user check-in data at Points-of-Interest (POIs) has surged, offering rich insights into user preferences. However, sequential POI recommendation systems always face two pivotal challenges. A challenge lies in the difficulty of modelin…

Cited by 11SourcePDFScholar
2024

DapperFL: Domain Adaptive Federated Learning with Model Fusion Pruning for Edge Devices

NeurIPS 2024oral

Federated learning (FL) has emerged as a prominent machine learning paradigm in edge computing environments, enabling edge devices to collaboratively optimize a global model without sharing their private data. However, existing FL frameworks suffer from efficacy deterioration due to the system heter…

2024

FedLPS: Heterogeneous Federated Learning for Multiple Tasks with Local Parameter Sharing

AAAI 2024technical

Federated Learning (FL) has emerged as a promising solution in Edge Computing (EC) environments to process the proliferation of data generated by edge devices. By collaboratively optimizing the global machine learning models on distributed edge devices, FL circumvents the need for transmitting raw d…

2023

OptIForest: Optimal Isolation Forest for Anomaly Detection

IJCAI 2023poster

Anomaly detection plays an increasingly important role in various fields for critical tasks such as intrusion detection in cybersecurity, financial risk detection, and human health monitoring. A variety of anomaly detection methods have been proposed, and a category based on the isolation forest mec…