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Zihan Xu

19 accepted papers

2026

Arcadia: Toward a Full-Lifecycle Framework for Embodied Lifelong Learning

CVPR 2026

We contend that embodied learning is fundamentally a lifecycle problem rather than a single-stage optimization. Systems that optimize only one link (data collection, simulation, learning, or deployment) rarely sustain improvement or generalize beyond narrow settings. We introduce Arcadia, a closed-l

Cited by 0SourceScholar
2026

CUARewardBench: Benchmark for Evaluating Reward Models on Computer-using Agent Trajectories

ICML 2026poster

Computer-using agents (CUAs) enable task completion through natural interaction with operating systems and software interfaces. While script-based verifiers are widely adopted for evaluation, they suffer from limited scalability and inability to provide step-wise assessment. Reward models offer prom…

Cited by 0SourceScholar
2026

Learn the Ropes, Then Trust the Wins: Self-imitation with Progressive Exploration for Agentic Reinforcement Learning

ICLR 2026poster

Reinforcement learning (RL) is the dominant paradigm for sharpening strategic tool use capabilities of LLMs on long-horizon, sparsely-rewarded agent tasks, yet it faces a fundamental challenge of exploration-exploitation trade-off. Existing studies stimulate exploration through the lens of policy en…

Cited by 0SourcecodeScholar
2026

X-FEMR: A Token-level Explainable Approach for Electronic Health Records Foundation Models using Transformer-based Models

IJCAI 2026

Foundation Models for Electronic Health Records (FEMRs) are pretrained on large-scale structured patient data, enabling them to convert longitudinal patient trajectories into generalizable representations for diverse clinical prediction tasks. Despite their effectiveness, FEMRs remain black-box mode

Cited by 0Scholar
2025

Boosting Lightweight Camouflaged Object Detection with Multi-Scale Context and Boundary Awareness

ICASSP 2025accepted

To adapt to the resource-limited environment, this study introduces the lightweight boundary-aware camouflaged object detection(COD) network LMABnet. We enhance the feature representation capability of the lightweight network through a multi-scale feature fusion architecture, while effectively avoid…

Cited by 0SourceScholar
2025

Incentivizing Reasoning for Advanced Instruction-Following of Large Language Models

NeurIPS 2025poster

Existing large language models (LLMs) face challenges of following complex instructions, especially when multiple constraints are present and organized in paralleling, chaining, and branching structures. One intuitive solution, namely chain-of-thought (CoT), is expected to universally improve capabi…

Cited by 0SourcecodeScholar
2025

LTD-Bench: Evaluating Large Language Models by Letting Them Draw

NeurIPS 2025poster

Current evaluation paradigms for large language models (LLMs) represent a critical blind spot in AI research—relying on opaque numerical metrics that conceal fundamental limitations in spatial reasoning while providing no intuitive understanding of model capabilities. This deficiency creates a dange…

Cited by 0SourcecodeScholar
2025

Natural Language Processing in Support of Evidence-based Medicine: A Scoping Review

ACL 2025finding

Evidence-based medicine (EBM) is at the forefront of modern healthcare, emphasizing the use of the best available scientific evidence to guide clinical decisions. Due to the sheer volume and rapid growth of medical literature and the high cost of curation, there is a critical need to investigate Nat…

Cited by 0SourcePDFScholar
2025

Reinforcement Learning-based Optimization of Humanoid Joint Motion Control via Text-driven Human Motion Mapping

IROS 2025

Human motion retargeting for humanoid robots, transferring human motion data to robots for imitation, presents significant challenges but offers considerable potential for real-world applications. Traditionally, this process relies on human demonstrations captured through pose estimation or motion c

Cited by 0SourceScholar
2025

T2V-CompBench: A Comprehensive Benchmark for Compositional Text-to-video Generation

CVPR 2025poster

Text-to-video (T2V) generative models have advanced significantly, yet their ability to compose different objects, attributes, actions, and motions into a video remains unexplored. Previous text-to-video benchmarks also neglect this important ability for evaluation. In this work, we conduct the firs…

2024

Sinkhorn Distance Minimization for Knowledge Distillation

COLING 2024main

Knowledge distillation (KD) has been widely adopted to compress large language models (LLMs). Existing KD methods investigate various divergence measures including the Kullback-Leibler (KL), reverse Kullback-Leibler (RKL), and Jensen-Shannon (JS) divergences. However, due to limitations inherent in…

2024

SoftCLIP: Softer Cross-Modal Alignment Makes CLIP Stronger

AAAI 2024technical

During the preceding biennium, vision-language pre-training has achieved noteworthy success on several downstream tasks. Nevertheless, acquiring high-quality image-text pairs, where the pairs are entirely exclusive of each other, remains a challenging task, and noise exists in the commonly used data…

2023

SheetPT: Spreadsheet Pre-training Based on Hierarchical Attention Network

AAAI 2023technical

Spreadsheets are an important and unique type of business document for data storage, analysis and presentation. The distinction between spreadsheets and most other types of digital documents lies in that spreadsheets provide users with high flexibility of data organization on the grid. Existing rela…

Cited by 0SourcePDFScholar
2022

PyramidCLIP: Hierarchical Feature Alignment for Vision-language Model Pretraining

NeurIPS 2022accept

Large-scale vision-language pre-training has achieved promising results on downstream tasks. Existing methods highly rely on the assumption that the image-text pairs crawled from the Internet are in perfect one-to-one correspondence. However, in real scenarios, this assumption can be difficult to ho…

Cited by 112SourcePDFScholar
2021

ReCU: Reviving the Dead Weights in Binary Neural Networks

ICCV 2021poster

Binary neural networks (BNNs) have received increasing attention due to their superior reductions of computation and memory. Most existing works focus on either lessening the quantization error by minimizing the gap between the full-precision weights and their binarization or designing a gradient ap…

Cited by 114PDFcodeScholar
2021

ShadowGNN: Graph Projection Neural Network for Text-to-SQL Parser

NAACL 2021long

Given a database schema, Text-to-SQL aims to translate a natural language question into the corresponding SQL query. Under the setup of cross-domain, traditional semantic parsing models struggle to adapt to unseen database schemas. To improve the model generalization capability for rare and unseen s…

2020

Answer-driven Deep Question Generation based on Reinforcement Learning

COLING 2020main

Deep question generation (DQG) aims to generate complex questions through reasoning over multiple documents. The task is challenging and underexplored. Existing methods mainly focus on enhancing document representations, with little attention paid to the answer information, which may result in the g…

2020

Rotated Binary Neural Network

NeurIPS 2020poster

Binary Neural Network (BNN) shows its predominance in reducing the complexity of deep neural networks. However, it suffers severe performance degradation. One of the major impediments is the large quantization error between the full-precision weight vector and its binary vector. Previous works focus…