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Guojun Yin

30 accepted papers

2026

AgentConductor: Topology Evolution for Multi-Agent Competition-Level Code Generation

ICML 2026poster

Large language model(LLM)-driven multi-agent systems(MAS) coordinate specialized agents through predefined interaction topologies and have shown promise for complex tasks such as competition-level code generation. Recent studies demonstrate that carefully designed multi-agent workflows and communica…

Cited by 0SourceScholar
2026

Contextual Rollout Bandits for Reinforcement Learning with Verifiable Rewards

ICML 2026poster

Reinforcement Learning with Verifiable Rewards (RLVR) is an effective paradigm for improving the reasoning capabilities of large language models. However, existing RLVR methods utilize rollouts in an indiscriminate and short-horizon manner: responses of heterogeneous quality within each prompt are t…

Cited by 0SourceScholar
2026

Enhancing Complex Symbolic Logical Rea­soning of Large Language Models via Sparse Multi-Agent Debate

ICLR 2026poster

Large language models (LLMs) struggle with complex logical reasoning. Previous work has primarily explored single-agent methods, with their performance remains fundamentally limited by the capabilities of a single model. To our knowledge, this paper first introduce a multi-agent approach specificall…

Cited by 0SourcecodeScholar
2026

GRASP: Graph Reasoning via Agentic Solving and Probing of LLMs

ICML 2026poster

Integrating graph knowledge into Large Language Models (LLMs) via passive representation faces critical bottlenecks: limited context windows, unreliable numerical computation, and structural hallucinations. To solve this, we propose **GRASP** (Graph Reasoning via Agentic Solving and Probing), shifti…

Cited by 0SourceScholar
2026

LogiConBench: Benchmarking Logical Consistencies of LLMs

ICLR 2026poster

Logical consistency, the requirement that statements remain non-contradictory under logical rules, is fundamental for trustworthy reasoning, yet current LLMs often fail to maintain it even on simple inference tasks. Existing benchmarks for LLM logical consistency are not scalable, not diverse, and n…

Cited by 0SourcecodeScholar
2026

Promoting Efficient Reasoning with Verifiable Stepwise Reward

AAAI 2026technical

Large reasoning models (LRMs) have recently achieved significant progress in complex reasoning tasks, aided by reinforcement learning with verifiable rewards. However, LRMs often suffer from overthinking, expending excessive computation on simple problems and reducing efficiency. Existing efficient

Cited by 0SourcePDFScholar
2026

ResRL: Boosting LLM Reasoning via Negative Sample Projection Residual Reinforcement Learning

ICML 2026poster

Reinforcement Learning with Verifiable Rewards (RLVR) enhances reasoning of Large Language Models (LLMs) but usually exhibits limited generation diversity due to the over-incentivization of positive rewards. Although methods like Negative Sample Reinforcement (NSR) mitigate this issue by upweighting…

Cited by 0SourceScholar
2026

ResT: Reshaping Token-Level Policy Gradients for Tool-Use Large Language Models

ICLR 2026poster

Large language models (LLMs) transcend passive generation and act as goal-directed agents by invoking external tools. Reinforcement learning (RL) offers a principled framework for optimizing these emergent tool-use policies, yet the prevailing paradigm relies exclusively on sparse outcome rewards an…

Cited by 0SourcecodeScholar
2026

Rethinking Personalization in Large Language Models at the Token Level

ICML 2026poster

With large language models (LLMs) now performing strongly across diverse tasks, there is growing demand for them to personalize outputs for individual users. Personalization is typically framed as an additional layer on top of a base NLP task, requiring model responses to meet user-specific needs wh…

Cited by 0SourceScholar
2026

SAE as a Crystal Ball: Interpretable Features Predict Cross-domain Transferability of LLMs without Training

ICLR 2026poster

In recent years, pre-trained large language models have achieved remarkable success across diverse tasks. Besides the pivotal role of self-supervised pre-training, their effectiveness in downstream applications also depends critically on the post-training process, which adapts models to task-specifi…

Cited by 0SourcecodeScholar
2026

SRFT: A Single-Stage Method with Supervised and Reinforcement Fine-Tuning for Reasoning

ICLR 2026poster

Large language models (LLMs) have achieved remarkable progress in reasoning tasks, yet optimally integrating Supervised Fine-Tuning (SFT) and Reinforcement Learning (RL) remains a fundamental challenge. Through a comprehensive analysis of token distributions, learning dynamics, and integration mecha…

Cited by 0SourcecodeScholar
2026

SSL4RL: Revisiting Self-supervised Learning as Intrinsic Reward for Visual-Language Reasoning

ICML 2026poster

Vision-language models (VLMs) have shown remarkable abilities by integrating large language models with visual inputs. However, they often fail to utilize visual evidence adequately, either depending on linguistic priors in vision-centric tasks or resorting to textual shortcuts during reasoning. Alt…

Cited by 0SourceScholar
2026

ViPER: Empowering the Self-Evolution of Visual Perception Abilities in Vision-Language Models

ICLR 2026poster

The limited capacity for fine-grained visual perception presents a critical bottleneck for Vision-Language Models (VLMs) in real-world applications. Addressing this is challenging due to the scarcity of high-quality data and the limitations of existing methods: supervised fine-tuning (SFT) often com…

Cited by 0SourcecodeScholar
2025

Beyond Static Testbeds: An Interaction-Centric Agent Simulation Platform for Dynamic Recommender Systems

EMNLP 2025

Evaluating and iterating upon recommender systems is crucial, yet traditional A/B testing is resource-intensive, and offline methods struggle with dynamic user-platform interactions. While agent-based simulation is promising, existing platforms often lack a mechanism for user actions to dynamically

2025

PolarQuant: Leveraging Polar Transformation for Key Cache Quantization and Decoding Acceleration

NeurIPS 2025poster

The increasing demand for long-context generation has made the KV cache in large language models a bottleneck in memory consumption. Quantizing the cache to lower bit widths is an effective way to reduce memory costs; however, previous methods struggle with key cache quantization due to outliers, re…

Cited by 0SourcecodeScholar
2025

RLAE: Reinforcement Learning-Assisted Ensemble for LLMs

EMNLP 2025

Ensembling large language models (LLMs) can effectively combine diverse strengths of different models, offering a promising approach to enhance performance across various tasks. However, existing methods typically rely on fixed weighting strategies that fail to adapt to the dynamic, context-dependen

Cited by 0SourcePDFScholar
2025

Semantic Convergence: Harmonizing Recommender Systems via Two-Stage Alignment and Behavioral Semantic Tokenization

AAAI 2025technical

Large language models (LLMs), endowed with exceptional reasoning capabilities, are adept at discerning profound user interests from historical behaviors, thereby presenting a promising avenue for the advancement of recommendation systems. However, a notable discrepancy persists between the sparse co…

Cited by 4SourcePDFScholar
2025

UIOrchestra: Generating High-Fidelity Code from UI Designs with a Multi-agent System

EMNLP 2025

Recent advances in large language models (LLMs) have significantly improved automated code generation, enabling tools such as GitHub Copilot and CodeWhisperer to assist developers in a wide range of programming tasks. However, the translation of complex mobile UI designs into high-fidelity front-end

Cited by 0SourcePDFScholar
2024

Tri^{2}-plane: Thinking Head Avatar via Feature Pyramid

ECCV 2024poster

"Recent years have witnessed considerable achievements in facial avatar reconstruction with neural volume rendering. Despite notable advancements, the reconstruction of complex and dynamic head movements from monocular videos still suffers from capturing and restoring fine-grained details. In this w…

2023

Emotional Listener Portrait: Neural Listener Head Generation with Emotion

ICCV 2023poster

Listener head generation centers on generating non-verbal behaviors (e.g., smile) of a listener in reference to the information delivered by a speaker. A significant challenge when generating such responses is the non-deterministic nature of fine-grained facial expressions during a conversation, whi…

Cited by 9PDFScholar
2022

Counterfactual Intervention Feature Transfer for Visible-Infrared Person Re-identification

ECCV 2022poster

"Graph-based models have achieved great success in person re-identification tasks recently, which compute the graph topology structure (affinities) among different people first and then pass the information across them to achieve stronger features. But we find existing graph-based methods in the vis…

Cited by 51SourcePDFScholar
2021

ForgeryNet: A Versatile Benchmark for Comprehensive Forgery Analysis

CVPR 2021poster

The rapid progress of photorealistic synthesis techniques has reached at a critical point where the boundary between real and manipulated images starts to blur. Thus, benchmarking and advancing digital forgery analysis have become a pressing issue. However, existing face forgery datasets either have…

Cited by 178PDFScholar
2020

CelebA-Spoof: Large-Scale Face Anti-Spoofing Dataset with Rich Annotations

ECCV 2020poster

As facial interaction systems are prevalently deployed, security and reliability of these systems become a critical issue, with substantial research efforts devoted. Among them, face anti-spoofing emerges as an important area, whose objective is to identify whether a presented face is live or spoof.…

2020

Thinking in Frequency: Face Forgery Detection by Mining Frequency-aware Clues

ECCV 2020poster

As realistic facial manipulation technologies have achieved remarkable progress, social concerns about potential malicious abuse of these technologies bring out an emerging research topic of face forgery detection. However, it is extremely challenging since recent advances are able to forge faces be…

2019

Learning to Predict Layout-to-image Conditional Convolutions for Semantic Image Synthesis

NeurIPS 2019poster

Semantic image synthesis aims at generating photorealistic images from semantic layouts. Previous approaches with conditional generative adversarial networks (GAN) show state-of-the-art performance on this task, which either feed the semantic label maps as inputs to the generator, or use them to mod…

2018

FD-GAN: Pose-guided Feature Distilling GAN for Robust Person Re-identification

NeurIPS 2018poster

Person re-identification (reID) is an important task that requires to retrieve a person's images from an image dataset, given one image of the person of interest. For learning robust person features, the pose variation of person images is one of the key challenges. Existing works targeting the probl…