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Tianqi Xu

7 accepted papers

2026

CNM-UNet: Continuous Ordinary Differential Equations for Medical Image Segmentation

AAAI 2026technical

Integrating Ordinary Differential Equations (ODEs) with U-shaped neural networks has emerged as a novel direction in medical image segmentation. Current networks predominantly employ discretization methods incorporating ODEs. However, these methods face inherent trade-offs between model compactness,

Cited by 0SourcePDFScholar
2025

BOLT: Boost Large Vision-Language Model Without Training for Long-form Video Understanding

CVPR 2025poster

Large video-language models (VLMs) have demonstrated promising progress in various video understanding tasks. However, their effectiveness in long-form video analysis is constrained by limited context windows. Traditional approaches, such as uniform frame sampling, often inevitably allocate resource…

2025

CRAB: Cross-environment Agent Benchmark for Multimodal Language Model Agents

ACL 2025finding

The development of autonomous agents increasingly relies on Multimodal Language Models (MLMs) to perform tasks described in natural language with GUI environments, such as websites, desktop computers, or mobile phones. Existing benchmarks for MLM agents in interactive environments are limited by the…

2025

EMOS: Embodiment-aware Heterogeneous Multi-robot Operating System with LLM Agents

ICLR 2025poster

Heterogeneous multi-robot systems (HMRS) have emerged as a powerful ap- proach for tackling complex tasks that single robots cannot manage alone. Current large-language-model-based multi-agent systems (LLM-based MAS) have shown success in areas like software development and operating systems, but ap…

Cited by 1SourcePDFScholar
2025

SOLAR: Serendipity Optimized Language Model Aligned for Recommendation

EMNLP 2025

Recently, Large Language Models (LLMs) have shown strong potential in recommendation tasks due to their broad world knowledge and reasoning capabilities. However, applying them to serendipity-oriented recommendation remains challenging, mainly due to a domain gap of LLMs in modeling personalized use

2025

Uncertainty-aware Knowledge Tracing

AAAI 2025technical

Knowledge Tracing (KT) is crucial in education assessment, which focuses on depicting students' learning states and assessing students' mastery of subjects. With the rise of modern online learning platforms, particularly massive open online courses (MOOCs), an abundance of interaction data has great…

2025

pFedGPT: Hierarchically Optimizing LoRA Aggregation Weights for Personalized Federated GPT Models

EMNLP 2025

Federated finetuning of Large Language Models (LLMs) using Low-Rank Adaptation (LoRA) offers computational efficiency and preserves data privacy. However, applying LoRA in federated settings faces significant challenges: standard approaches struggle with data heterogeneity, and existing personalizat

Cited by 0SourcePDFScholar