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Liang Xie

37 accepted papers

2026

Differential Fine-Tuning Large Language Models Towards Better Diverse Reasoning Abilities

ICLR 2026poster

Reasoning abilities of large language models (LLMs) require explicit derivations compared to general question-answering, supervised fine-tuning (SFT) can empower multiple reasoning abilities in LLMs via learning from various datasets. However, neither training the datasets jointly (mix-up) nor conti…

Cited by 0SourcecodeScholar
2026

MGDHand: Multi-Granularity Prior-to-Inertial Distillation Framework for Sequential 3D Hand Pose Estimation from Sparse IMUs

CVPR 2026

3D hand pose estimation (HPE) from sparse inertial measurement units (IMUs) has shown great potential in human-computer interaction. However, due to the significant semantic gap between sparse local motion information and structured global pose information, estimating hand poses from sparse IMU sign

Cited by 0SourceScholar
2026

MHED-SLAM: Multi-Scale Hybrid Encoding-Based Decoupled SLAM

AAAI 2026technical

Neural Radiance Fields (NeRF)-based Visual Simultaneous Localization and Mapping (SLAM) achieve superior scene geometric modeling and robust camera tracking by leveraging neural representations. Existing methods typically relied on multi-resolution hash encoding with truncated signed distance field

Cited by 0SourcePDFScholar
2026

Mitigating Perception Bias: A Training-Free Approach to Enhance LMM for Image Quality Assessment

AAAI 2026technical

Despite the impressive performance of large multimodal models (LMMs) in high-level visual tasks, their capacity for image quality assessment (IQA) remains limited. One main reason is that LMMs are primarily trained for high-level tasks (e.g., image captioning), emphasizing unified image semantics ex

Cited by 0SourcePDFScholar
2026

OMG-Bench: A New Challenging Benchmark for Skeleton-based Online Micro Hand Gesture Recognition

CVPR 2026

Online micro gesture recognition from hand skeletons is critical for VR/AR interaction but faces challenges due to limited public datasets and task-specific algorithms. Micro gestures involve subtle motion patterns, which make constructing datasets with precise skeletons and frame-level annotations

Cited by 0SourceScholar
2026

Seeing the Unseen: Physics-as-Representation for Generalizable Gaze Perception

ICML 2026poster

We introduce physics-as-representation, a learning paradigm that encodes physical structure and geometric laws into visual representations, enabling models to see the unseen—the underlying 3D geometry and motion dynamics not apparent in raw pixels. We instantiate this paradigm in gaze perception by …

Cited by 0SourceScholar
2026

UST-Hand: An Uncertainty-aware Spatiotemporal Point Cloud Interaction Network for 3D Self-supervised Hand Pose Estimation

CVPR 2026

Manually annotating accurate 3D hand poses is extremely time-consuming and labor-intensive. Existing self-supervised hand pose estimation methods leverage the discrepancy between input images and rendered outputs, or multi-view consistency constraints, as the driving force to optimize networks and p

Cited by 0SourceScholar
2026

Uncovering the Gradient Geometry of Long CoT: A Spectral-guided Approach to Reasoning Distillation

ICML 2026poster

Large reasoning models (LRMs) achieve remarkable reasoning performance by generating long chains-of-thought (CoT). However, standard supervised fine-tuning (SFT) treats all tokens uniformly, indiscriminately minimizing loss across both essential reasoning steps and those that are noisy, redundant, o…

Cited by 0SourceScholar
2025

A Dynamic Stiefel Graph Neural Network for Efficient Spatio-Temporal Time Series Forecasting

IJCAI 2025

Spatio-temporal time series (STTS) have been widely used in many applications. However, accurately forecasting STTS is challenging due to complex dynamic correlations in both time and space dimensions. Existing graph neural networks struggle to balance effectiveness and efficiency in modeling dynami

2025

A Learning-based Multi-Frame Visual Feature Framework for Real-Time Driver Fatigue Detection

NAACL 2025system demonstrations

Driver fatigue is a significant factor contributing to road accidents, highlighting the need for reliable and accurate detection methods. In this study, we introduce a novel learning-based multi-frame visual feature framework (LMVFF) designed for precise fatigue detection. Our methodology comprises…

Cited by 0SourcePDFScholar
2025

A Multi-Prior Fusion Network for Video-based Micro-Expression Recognition

ICASSP 2025accepted

The analysis of facial micro-expressions (MEs) has emerged as a significant application and topic within the field of image and video processing. However, challenges persist due to the brief duration and subtle intensity of these spontaneous expressions. This paper presents a novel multi-prior fusio…

Cited by 0SourceScholar
2025

Agent Trading Arena: A Study on Numerical Understanding in LLM-Based Agents

EMNLP 2025

Large language models (LLMs) have demonstrated remarkable capabilities in natural language tasks, yet their performance in dynamic, real-world financial environments remains underexplored. Existing approaches are confined to historical backtesting, where trading actions cannot influence market price

2025

ColaDex: Contact-guided Optimization and VLM-assisted Selection for Task-oriented Dexterous Grasp Generation

IROS 2025

Task-oriented dexterous grasp generation aims to generate stable and functional grasps that enable a robotic hand to effectively interact with objects to accomplish specific tasks. However, generating high-dimensional hand configurations that seamlessly adapt to diverse task requirements and object

Cited by 0SourceScholar
2025

Concise and Organized Perception Facilitates Reasoning in Large Language Models

NAACL 2025findings

Exploiting large language models (LLMs) to tackle reasoning has garnered growing attention. It still remains highly challenging to achieve satisfactory results in complex logical problems, characterized by plenty of premises within the context and requiring multi-hop reasoning. In particular, the re…

2025

Controlling Thinking Speed in Reasoning Models

NeurIPS 2025spotlight

Human cognition is theorized to operate in two modes: fast, intuitive System 1 thinking and slow, deliberate System 2 thinking. While current Large Reasoning Models (LRMs) excel at System 2 thinking, their inability to perform fast thinking leads to high computational overhead and latency. In this w…

Cited by 0SourceScholar
2025

De^2Gaze: Deformable and Decoupled Representation Learning for 3D Gaze Estimation

CVPR 2025poster

3D Gaze estimation is a challenging task due to two main issues. First, existing methods focus on analyzing dense features (e.g., large pixel regions), which are sensitive to local noise (e.g., light spots, blurs) and result in increased computational complexity. Second, an eyeball model can corresp…

Cited by 0SourcePDFScholar
2025

Don't Take Things Out of Context: Attention Intervention for Enhancing Chain-of-Thought Reasoning in Large Language Models

ICLR 2025poster

Few-shot Chain-of-Thought (CoT) significantly enhances the reasoning capabilities of large language models (LLMs), functioning as a whole to guide these models in generating reasoning steps toward final answers. However, we observe that isolated segments, words, or tokens within CoT demonstrations c…

Cited by 0SourcePDFScholar
2025

Enhancing Chain-of-Thought Reasoning with Critical Representation Fine-tuning

ACL 2025long

Representation Fine-tuning (ReFT), a recently proposed Parameter-Efficient Fine-Tuning (PEFT) method, has attracted widespread attention for significantly improving parameter efficiency by editing representation space alone. In this work, we investigate applying ReFT to complex reasoning tasks. Howe…

Cited by 0SourcePDFScholar
2025

From Redundancy to Relevance: Information Flow in LVLMs Across Reasoning Tasks

NAACL 2025long

Large Vision Language Models (LVLMs) achieve great performance on visual-language reasoning tasks, however, the black-box nature of LVLMs hinders in-depth research on the reasoning mechanism. As all images need to be converted into image tokens to fit the input format of large language models (LLMs)…

2025

GeoCAD: Local Geometry-Controllable CAD Generation with Large Language Models

NeurIPS 2025poster

Local geometry-controllable computer-aided design (CAD) generation aims to modify local parts of CAD models automatically, enhancing design efficiency. It also ensures that the shapes of newly generated local parts follow user-specific geometric instructions (e.g., an isosceles right triangle or a…

Cited by 0SourceScholar
2025

Hierarchical-aware Orthogonal Disentanglement Framework for Fine-grained Skeleton-based Action Recognition

ICCV 2025poster

In recent years, skeleton-based action recognition has gained significant attention due to its robustness in varying environmental conditions. However, most existing methods struggle to distinguish fine-grained actions due to subtle motion features, minimal inter-class variation, and they often fail…

Cited by 0SourcePDFScholar
2025

Improving Complex Reasoning with Dynamic Prompt Corruption: A Soft Prompt Optimization Approach

ICLR 2025poster

Prompt Tuning (PT) has emerged as a promising Parameter-Efficient Fine-Tuning (PEFT) approach by appending trainable continuous prompt vectors to the input, maintaining competitive performance with significantly fewer trainable parameters. While PT has shown effectiveness in enhancing task performan…

Cited by 0SourcePDFScholar
2025

LipGen: Viseme-Guided Lip Video Generation for Enhancing Visual Speech Recognition

ICASSP 2025accepted

Visual speech recognition (VSR), commonly known as lip reading, has garnered significant attention due to its wide-ranging practical applications. The advent of deep learning techniques and advancements in hardware capabilities have significantly enhanced the performance of lip reading models. Despi…

Cited by 0SourceScholar
2025

M2EIT: Multi-Domain Mixture of Experts for Robust Neural Inertial Tracking

ICCV 2025poster

Inertial tracking (IT), independent of the environment and external infrastructure, has long been the ideal solution for providing location services to humans. Despite significant strides in inertial tracking empowered by deep learning, prevailing neural inertial tracking predominantly utilizes conv…

Cited by 0SourcePDFScholar
2025

Multi-Level Optimal Transport for Universal Cross-Tokenizer Knowledge Distillation on Language Models

AAAI 2025technical

Knowledge distillation (KD) has become a prevalent technique for compressing large language models (LLMs). Existing KD methods are constrained by the need for identical tokenizers (i.e., vocabularies) between teacher and student models, limiting their versatility in handling LLMs of different archit…

2025

Self-supervised Contrastive Pre-training for Dry Electrode EEG Emotion Recognition via Cross Device Representation Consistency

ICASSP 2025accepted

The use of dry electrode electroencephalography (EEG) systems holds significant importance in advancing the everyday application of emotion recognition. However, adapting it to real-world applications faces unique challenges due to low signal-to-noise ratios and unreliable emotion labels. To address…

Cited by 0SourceScholar
2024

Delving into the Reversal Curse: How Far Can Large Language Models Generalize?

NeurIPS 2024poster

While large language models (LLMs) showcase unprecedented capabilities, they also exhibit certain inherent limitations when facing seemingly trivial tasks. A prime example is the recently debated "reversal curse", which surfaces when models, having been trained on the fact "A is B", struggle to gen…

2024

From Yes-Men to Truth-Tellers: Addressing Sycophancy in Large Language Models with Pinpoint Tuning

ICML 2024poster

Large Language Models (LLMs) tend to prioritize adherence to user prompts over providing veracious responses, leading to the sycophancy issue. When challenged by users, LLMs tend to admit mistakes and provide inaccurate responses even if they initially provided the correct answer. Recent works propo…

Cited by 10SourcePDFScholar
2024

Instance-adaptive Zero-shot Chain-of-Thought Prompting

NeurIPS 2024poster

Zero-shot Chain-of-Thought (CoT) prompting emerges as a simple and effective strategy for enhancing the performance of large language models (LLMs) in real-world reasoning tasks. Nonetheless, the efficacy of a singular, task-level prompt uniformly applied across the whole of instances is inherently…

Cited by 5SourcePDFScholar
2024

Landmark-Guided Cross-Speaker Lip Reading with Mutual Information Regularization

COLING 2024main

Lip reading, the process of interpreting silent speech from visual lip movements, has gained rising attention for its wide range of realistic applications. Deep learning approaches greatly improve current lip reading systems. However, lip reading in cross-speaker scenarios where the speaker identity…

Cited by 1SourcePDFScholar
2024

Safe-VLN: Collision Avoidance for Vision-and-Language Navigation of Autonomous Robots Operating in Continuous Environments

RA-L 2024

The task of vision-and-language navigation in continuous environments (VLN-CE) aims at training an autonomous agent to perform low-level actions to navigate through 3D continuous surroundings using visual observations and language instructions. The significant potential of VLN-CE for mobile robots h

Cited by 26SourceScholar
2024

Semi-supervised 3D Object Detection with PatchTeacher and PillarMix

AAAI 2024technical

Semi-supervised learning aims to leverage numerous unlabeled data to improve the model performance. Current semi-supervised 3D object detection methods typically use a teacher to generate pseudo labels for a student, and the quality of the pseudo labels is essential for the final performance. In thi…

2023

Grounded Entity-Landmark Adaptive Pre-Training for Vision-and-Language Navigation

ICCV 2023oral

Cross-modal alignment is one key challenge for Vision-and-Language Navigation (VLN). Most existing studies concentrate on mapping the global instruction or single sub-instruction to the corresponding trajectory. However, another critical problem of achieving fine-grained alignment at the entity leve…

Cited by 21PDFcodeScholar
2022

Inducing Neural Collapse in Imbalanced Learning: Do We Really Need a Learnable Classifier at the End of Deep Neural Network?

NeurIPS 2022accept

Modern deep neural networks for classification usually jointly learn a backbone for representation and a linear classifier to output the logit of each class. A recent study has shown a phenomenon called neural collapse that the within-class means of features and the classifier vectors converge to th…

2022

Learning to Fill the Seam by Vision: Sub-millimeter Peg-in-hole on Unseen Shapes in Real World

ICRA 2022poster

In the peg insertion task, human pays attention to the seam between the peg and the hole and tries to fill it continuously with visual feedback. By imitating the human's behavior, we design architectures with position and orientation estimators based on the seam representation for pose alignment, wh…

Cited by 18SourcecodeScholar
2022

Sparse Fuse Dense: Towards High Quality 3D Detection With Depth Completion

CVPR 2022oral

Current LiDAR-only 3D detection methods inevitably suffer from the sparsity of point clouds. Many multi-modal methods are proposed to alleviate this issue, while different representations of images and point clouds make it difficult to fuse them, resulting in suboptimal performance. In this paper, w…

Cited by 251PDFcodeScholar