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Xiangyu Li

16 accepted papers

2026

Ambiguity-aware Truncated Flow Matching for Ambiguous Medical Image Segmentation

AAAI 2026technical

A simultaneous enhancement of accuracy and diversity of predictions remains a challenge in ambiguous medical image segmentation (AMIS) due to the inherent trade-offs. While truncated diffusion probabilistic models (TDPMs) hold strong potential with a paradigm optimization, existing TDPMs suffer from

Cited by 0SourcePDFScholar
2026

AwareVLN: Reasoning with Self-awareness for Vision-Language Navigation

CVPR 2026

Vision-and-Language Navigation (VLN) requires an agent to ground language instructions to its own movement within a visual environment. While state-of-the-art methods leverage the reasoning capabilities of Vision-Language Models (VLMs) for end-to-end action prediction, they often lack an explicit an

Cited by 0SourcecodeScholar
2026

SHAPE: Structure-aware Hierarchical Unsupervised Domain Adaptation with Plausibility Evaluation for Medical Image Segmentation

CVPR 2026

Unsupervised Domain Adaptation (UDA) is essential for deploying medical segmentation models across diverse clinical environments. Existing methods are fundamentally limited, suffering from semantically unaware feature alignment that results in poor distributional fidelity and from pseudo-label valid

Cited by 0SourceScholar
2025

An Empirical Study of LLM Reasoning Ability Under Strict Output Length Constraint

EMNLP 2025

Recent work has demonstrated the remarkable potential of Large Language Models (LLMs) in test-time scaling. By making models think before answering, they are able to achieve much higher accuracy with extra inference computation.However, in many real-world scenarios, models are used under time constr

Cited by 0SourcePDFScholar
2025

Benchmarking and Understanding Compositional Relational Reasoning of LLMs

AAAI 2025technical

Compositional relational reasoning (CRR) is a hallmark of human intelligence, but we lack a clear understanding of whether and how existing transformer large language models (LLMs) can solve CRR tasks. To enable systematic exploration of the CRR capability of LLMs, we first propose a new synthetic b…

2025

DiffusionDrive: Truncated Diffusion Model for End-to-End Autonomous Driving

CVPR 2025highlight

Recently, the diffusion model has emerged as a powerful generative technique for robotic policy learning, capable of modeling multi-mode action distributions. Leveraging its capability for end-to-end autonomous driving is a promising direction. However, the numerous denoising steps in the robotic di…

2025

Q-MiniSAM2: A Quantization-based Benchmark for Resource-Efficient Video Segmentation

IJCAI 2025

Segment Anything Model 2 (SAM2) is a new-generation, high-precision model for image and video segmentation, offering extensive application prospects across numerous computer vision fields. However, as a large-scale model, its huge memory demands and expansive computing costs pose challenges for prac

Cited by 0SourcePDFScholar
2025

QuantAgents: Towards Multi-agent Financial System via Simulated Trading

EMNLP 2025

In this paper, our objective is to develop a multi-agent financial system that incorporates simulated trading , a technique extensively utilized by financial professionals. While current LLM-based agent models demonstrate competitive performance, they still exhibit significant deviations from real-w

2025

RAD: Training an End-to-End Driving Policy via Large-Scale 3DGS-based Reinforcement Learning

NeurIPS 2025poster

Existing end-to-end autonomous driving (AD) algorithms typically follow the Imitation Learning (IL) paradigm, which faces challenges such as causal confusion and an open-loop gap. In this work, we propose RAD, a 3DGS-based closed-loop Reinforcement Learning (RL) framework for end-to-end Autonomous D…

Cited by 0SourcecodeScholar
2025

T2R-BENCH: A Benchmark for Real World Table-to-Report Task

EMNLP 2025

Extensive research has been conducted to explore the capabilities of large language models (LLMs) in table reasoning. However, the essential task of transforming tables information into reports remains a significant challenge for industrial applications. This task is plagued by two critical issues:

2024

RU22Fact: Optimizing Evidence for Multilingual Explainable Fact-Checking on Russia-Ukraine Conflict

COLING 2024main

Fact-checking is the task of verifying the factuality of a given claim by examining the available evidence. High-quality evidence plays a vital role in enhancing fact-checking systems and facilitating the generation of explanations that are understandable to humans. However, the provision of both su…

2024

TP-Link: Fine-grained Pre-Training for Text-to-SQL Parsing with Linking Information

COLING 2024main

In this paper, we introduce an innovative pre-training framework TP-Link, which aims to improve context-dependent Text-to-SQL Parsing by leveraging Linking information. This enhancement is achieved through better representation of both natural language utterances and the database schema, ultimately…

2022

DISP6D: Disentangled Implicit Shape and Pose Learning for Scalable 6D Pose Estimation

ECCV 2022poster

"Scalable 6D pose estimation for rigid objects from RGB images aims at handling multiple objects and generalizing to novel objects. Building on a well-known auto-encoding framework to cope with object symmetry and the lack of labeled training data, we achieve scalability by disentangling the latent…

2022

STAR: SQL Guided Pre-Training for Context-dependent Text-to-SQL Parsing

EMNLP 2022finding

In this paper, we propose a novel SQL guided pre-training framework STAR for context-dependent text-to-SQL parsing, which leverages contextual information to enrich natural language (NL) utterance and table schema representations for text-to-SQL conversations. Concretely, we propose two novel pre-tr…

2018

Iterative Spectral Method for Alternative Clustering

AISTATS 2018poster

Given a dataset and an existing clustering as input, alternative clustering aims to find an alternative partition. One of the state-of-the-art approaches is Kernel Dimension Alternative Clustering (KDAC). We propose a novel Iterative Spectral Method (ISM) that greatly improves the scalability of…