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Zibin Zheng

26 accepted papers

2026

Fine-Tune Once, Reuse Across Models: Bayesian Task-Update Factors and Approximations

ICML 2026poster

As pre-trained models evolve rapidly, transferring fine-tuning knowledge to updated models without retraining has become a critical challenge. Most existing methods reuse parameter updates, yet the same dataset can induce substantially different updates across base models due to mismatched local los…

Cited by 0SourceScholar
2026

Guiding Diffusion Models with Fine-Grained Conditions and Semantics-Preserving Sampling for One-Shot Federated Learning

CVPR 2026

One-shot Federated Learning (OSFL) has emerged as a promising paradigm to mitigate the high communication overhead of traditional federated learning. However, its effectiveness is often hindered by data heterogeneity across clients. While recent methods leverage pre-trained diffusion models to gener

Cited by 0SourceScholar
2026

Learning Multi-Indicator Weights for Data Selection: A Joint Task-Model Adaptation Framework with Efficient Proxies

IJCAI 2026

Data selection is a key component of efficient instruction tuning for large language models, as recent work has shown that data quality often matters more than data quantity. Accordingly, prior studies have introduced various multi-dimensional heuristics to evaluate and filter instruction data. Howe

Cited by 0Scholar
2026

MIRNet: Integrating Constrained Graph-Based Reasoning with Pre-training for Diagnostic Medical Imaging

AAAI 2026technical

Automated interpretation of medical images demands robust modeling of complex visual-semantic relationships while addressing annotation scarcity, label imbalance, and clinical plausibility constraints. We introduce MIRNet (Medical Image Reasoner Network), a novel framework that integrates self-super

Cited by 0SourcePDFScholar
2026

Position: Code Benchmarks Should Prioritize Rigor, Reliability, and Reproducibility

ICML 2026poster

Code-related benchmarks play a critical role in evaluating large language models (LLMs), yet their quality fundamentally shapes how the com- munity interprets model capabilities. In the past few years, awareness of benchmark quality has grown. Yet, after a decade-scale (2014 - 2025) survey over 572 …

Cited by 0SourceScholar
2026

QRShield: Exploiting Vulnerabilities of Latent Diffusion Models for Preventing AI Art Plagiarism

AAAI 2026technical

Latent Diffusion Models (LDMs) have achieved remarkable success in image generation tasks, yet their low barrier to customization poses severe threats related to art plagiarism. As a countermeasure, adversarial methods have been proposed to protect artworks from plagiarism. However, current methods

Cited by 0SourcePDFScholar
2026

Ref4D-VideoBench: Four-Dimensional Reference-Based Evaluation of Text-to-Video Generative Models

CVPR 2026

Most existing evaluations of generated videos adopt a no-reference paradigm. Although recent benchmarks cover multiple dimensions and show moderate correlation with human preferences, relying solely on textual prompts weakens real-world constraints and makes it difficult to produce accountable and i

Cited by 0SourcecodeScholar
2026

Rethinking the Gold Standard: Why Discrete Curvature Fails to Fully Capture Over-squashing in GNNs?

ICLR 2026poster

As a topological invariant for discrete structures, discrete curvature has been widely adopted in the study of complex networks and graph neural networks. A prevailing viewpoint posits that edges with highly negative curvature will induce graph bottlenecks and the over-squashing phenomenon. In this…

Cited by 0SourceScholar
2025

Clients Collaborate: Flexible Differentially Private Federated Learning with Guaranteed Improvement of Utility-Privacy Trade-off

ICML 2025poster

To defend against privacy leakage of user data, differential privacy is widely used in federated learning, but it is not free. The addition of noise randomly disrupts the semantic integrity of the model and this disturbance accumulates with increased communication rounds. In this paper, we introduce…

2025

Federated Domain Generalization with Decision Insight Matrix

IJCAI 2025

Federated domain generalization addresses the crucial challenge of developing models that can generalize across diverse domains while maintaining data privacy in federated learning settings. Current approaches either compromise privacy constraints or focus narrowly on specific aspects of model invar

Cited by 0SourcePDFScholar
2025

Graph Neural Ricci Flow: Evolving Feature from a Curvature Perspective

ICLR 2025poster

Differential equations provide a dynamical perspective for understanding and designing graph neural networks (GNNs). By generalizing the discrete Ricci flow (DRF) to attributed graphs, we can leverage a new paradigm for the evolution of node features with the help of curvature. We show that in the a…

Cited by 1SourcePDFScholar
2025

Measuring Diversity in Synthetic Datasets

ICML 2025poster

Large language models (LLMs) are widely adopted to generate synthetic datasets for various natural language processing (NLP) tasks, such as text classification and summarization. However, accurately measuring the diversity of these synthetic datasets—an aspect crucial for robust model performance—re…

2025

Mitigating Social Bias in Large Language Models: A Multi-Objective Approach Within a Multi-Agent Framework

AAAI 2025technical

Natural language processing (NLP) has seen remarkable advancements with the development of large language models (LLMs). Despite these advancements, LLMs often produce socially biased outputs. Recent studies have mainly addressed this problem by prompting LLMs to behave ethically, but this approach…

2024

A Graph is Worth 1-bit Spikes: When Graph Contrastive Learning Meets Spiking Neural Networks

ICLR 2024poster

While contrastive self-supervised learning has become the de-facto learning paradigm for graph neural networks, the pursuit of higher task accuracy requires a larger hidden dimensionality to learn informative and discriminative full-precision representations, raising concerns about computation, memo…

2024

A Swiss Army Knife for Heterogeneous Federated Learning: Flexible Coupling via Trace Norm

NeurIPS 2024poster

The heterogeneity issue in federated learning (FL) has attracted increasing attention, which is attempted to be addressed by most existing methods. Currently, due to systems and objectives heterogeneity, enabling clients to hold models of different architectures and tasks of different demands has be…

Cited by 3SourcePDFScholar
2024

Contrastive Deep Nonnegative Matrix Factorization For Community Detection

ICASSP 2024accepted

Recently, nonnegative matrix factorization (NMF) has been widely adopted for community detection, because of its better interpretability. However, the existing NMF-based methods have the following three problems: 1) they directly transform the original network into community membership space, so it…

Cited by 0SourceScholar
2024

Improving Transferable Targeted Adversarial Attacks with Model Self-Enhancement

CVPR 2024poster

Various transfer attack methods have been proposed to evaluate the robustness of deep neural networks (DNNs). Although manifesting remarkable performance in generating untargeted adversarial perturbations existing proposals still fail to achieve high targeted transferability. In this work we discove…

2024

Self-Para-Consistency: Improving Reasoning Tasks at Low Cost for Large Language Models

ACL 2024findings

Recently, the self-consistency decoding strategy has shown the ability to improve performance for complex reasoning tasks with large language models (LLMs). However, the costs may be high because the sampling process of the strategy generates some low-probability text, resulting in low-quality reaso…

Cited by 5SourcePDFScholar
2024

State Space Models on Temporal Graphs: A First-Principles Study

NeurIPS 2024poster

Over the past few years, research on deep graph learning has shifted from static graphs to temporal graphs in response to real-world complex systems that exhibit dynamic behaviors. In practice, temporal graphs are formalized as an ordered sequence of static graph snapshots observed at discrete time…

2023

CDTA: A Cross-Domain Transfer-Based Attack with Contrastive Learning

AAAI 2023technical

Despite the excellent performance, deep neural networks (DNNs) have been shown to be vulnerable to adversarial examples. Besides, these examples are often transferable among different models. In other words, the same adversarial example can fool multiple models with different architectures at the sa…

2023

Scaling Up Dynamic Graph Representation Learning via Spiking Neural Networks

AAAI 2023technical

Recent years have seen a surge in research on dynamic graph representation learning, which aims to model temporal graphs that are dynamic and evolving constantly over time. However, current work typically models graph dynamics with recurrent neural networks (RNNs), making them suffer seriously from…

2021

Understanding Structural Vulnerability in Graph Convolutional Networks

IJCAI 2021poster

Recent studies have shown that Graph Convolutional Networks (GCNs) are vulnerable to adversarial attacks on the graph structure. Although multiple works have been proposed to improve their robustness against such structural adversarial attacks, the reasons for the success of the attacks remain uncle…

2020

Phishing Scam Detection on Ethereum: Towards Financial Security for Blockchain Ecosystem

IJCAI 2020poster

In recent years, blockchain technology has created a new cryptocurrency world and has attracted a lot of attention. It also is rampant with various scams. For example, phishing scams have grabbed a lot of money and has become an important threat to users' financial security in the blockchain ecosyst…

Cited by 0SourcePDFScholar
2018

Learning Semantic Representations for Unsupervised Domain Adaptation

ICML 2018oral

It is important to transfer the knowledge from label-rich source domain to unlabeled target domain due to the expensive cost of manual labeling efforts. Prior domain adaptation methods address this problem through aligning the global distribution statistics between source domain and target domain, b…