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Xinxin Liu

8 accepted papers

2026

Flash-Searcher: Fast and Effective Web Agents via DAG-Based Parallel Execution

ICLR 2026poster

Large language models (LLMs) have demonstrated remarkable capabilities in complex reasoning tasks when equipped with external tools. However, current frameworks predominantly rely on sequential processing, leading to inefficient execution particularly for tasks requiring extensive tool interaction.…

Cited by 0SourcecodeScholar
2026

LaTeX2Layout: High-Fidelity, Scalable Document Layout Annotation Pipeline for Layout Detection

AAAI 2026technical

General-purpose Vision-Language Models (VLMs) are increasingly integral to modern AI systems for document understanding, yet their ability to perform fine-grained layout analysis remains severely underdeveloped. Overcoming this limitation requires large-scale, high-fidelity training datasets. Howeve

Cited by 0SourcePDFScholar
2026

Learning from Noisy Preferences: A Semi-Supervised Learning Approach to Direct Preference Optimization

ICLR 2026poster

Human visual preferences are inherently multi-dimensional, encompassing aspects of aesthetics, detail fidelity, and semantic alignment. However, existing open-source preference datasets provide only single, holistic annotations, resulting in severe label noise—images that excel in some dimensions (e…

Cited by 0SourceScholar
2026

ManifoldNeuS: Manifold-aware View Optimizability for Pose-Free Neural Surface Reconstruction

CVPR 2026

Jointly optimizing camera poses and object geometry from unposed images is a challenging task in neural surface reconstruction. Existing methods often suffer from pose drift and geometric distortion, stemming from the easy-view bias --- uniform view optimization favors easy-to-optimize views with ab

Cited by 0SourceScholar
2026

PRIME: A Decoupled Multi-agent Actor-Critic for Multi-view Clustering

IJCAI 2026

Deep multi-view clustering draws plentiful attention in various domains, owing to remarkable performance in learning patterns from complementary information of multi-view data. However, previous methods encounter two challenges. They utilize a single pre-defined clustering strategy to perceive diver

Cited by 0Scholar
2025

CPO: Condition Preference Optimization for Controllable Image Generation

NeurIPS 2025poster

To enhance controllability in text-to-image generation, ControlNet introduces image-based control signals, while ControlNet++ improves pixel-level cycle consistency between generated images and the input control signal. To avoid the prohibitive cost of back-propagating through the sampling process,…

Cited by 0SourcecodeScholar
2025

Refining Salience-Aware Sparse Fine-Tuning Strategies for Language Models

ACL 2025long

Parameter-Efficient Fine-Tuning (PEFT) has gained prominence through low-rank adaptation methods like LoRA. In this paper, we focus on sparsity-based PEFT (SPEFT), which introduces trainable sparse adaptations to the weight matrices in the model, offering greater flexibility in selecting fine-tuned…

2022

A Unified Positive-Unlabeled Learning Framework for Document-Level Relation Extraction with Different Levels of Labeling

EMNLP 2022main

Document-level relation extraction (RE) aims to identify relations between entities across multiple sentences. Most previous methods focused on document-level RE under full supervision. However, in real-world scenario, it is expensive and difficult to completely label all relations in a document bec…