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Jian Chen

62 accepted papers

2026

A Better Start: Sensitivity-Aware Warm-Up for Robust and Efficient Fine-Tuning

AAAI 2026technical

As an essential component of fine-tuning, warm-up plays a crucial role in promoting stability and generalization. Many studies have examined its underlying mechanisms from different aspects. However, most of the studies focus on incorporating these insights into optimizers to reduce the reliance on

Cited by 0SourcePDFScholar
2026

A Reinforcement Learning Based FEM Solver for Accelerating Contact-Influenced Simulation of Continuum Robots

RA-L 2026

Continuum robots exhibit exceptional flexibility and multi-degree-of-freedom maneuverability, offering significant advantages for navigating confined luminal spaces. However, rapid simulation of their contact-influenced behavior remains challenging. This paper presents RLFEM, an innovative finite el

Cited by 0SourceScholar
2026

EarlyTom: Early Token Compression Completes Fast Video Understanding

CVPR 2026

Video large language models (Video-LLMs) have demonstrated strong capabilities in video understanding tasks. However, their practical deployment is still hindered by the inefficiency introduced by processing massive amounts of visual tokens. Although recent approaches achieve extremely low token ret

Cited by 0SourceScholar
2026

Emotion and Intention Guided Multi-Modal Learning for Sticker Response Selection

AAAI 2026technical

Stickers are widely used in online communication to convey emotions and implicit intentions. The Sticker Response Selection (SRS) task aims to select the most contextually appropriate sticker based on the dialogue. However, existing methods typically rely on semantic matching and model emotional and

Cited by 0SourcePDFScholar
2026

FastFLUX: Pruning FLUX with Block-wise Replacement and Sandwich Training

AAAI 2026technical

Recent advancements in text-to-image (T2I) generation have led to the emergence of highly expressive models such as diffusion transformers (DiTs), exemplified by FLUX. However, their massive parameter sizes lead to slow inference, high memory usage, and poor deployability. Existing acceleration meth

Cited by 0SourcePDFScholar
2026

NaVLA$^2$: A Vision-Language-Audio-Action Model for Multimodal Instruction Navigation

AAAI 2026technical

Embodied navigation is a fundamental capability for intelligent agents, yet remains challenging in partially observable environments where navigation instructions can be difficult to interpret. However, existing tasks only provide unimodal instructions, which are ambiguous in complex multimodal envi

Cited by 0SourcePDFScholar
2026

Q Cache: Visual Attention Is Valuable in Less than Half of Decode Layers for Multimodal Large Language Model

AAAI 2026technical

Multimodal large language models (MLLMs) are plagued by exorbitant inference costs attributable to the profusion of visual tokens within the vision encoder. The redundant visual tokens engenders a substantial computational load and key-value (KV) cache footprint bottleneck. Existing approaches focus

Cited by 0SourcePDFScholar
2026

RAPID: Reusing Attention Sparsity with Inter-step Adaptation for Efficient Video Diffusion

CVPR 2026

The prohibitive cost of 3D attention hinders high-quality video generation with diffusion models. Existing sparse attention methods either lack content adaptivity (static) or incur excessive overhead from per-step recalculation (dynamic). Our work challenges the necessity of this trade-off, based on

Cited by 0SourceScholar
2026

Revisiting Cross-Architecture Distillation: Adaptive Dual-Teacher Transfer for Lightweight Video Models

AAAI 2026technical

Vision Transformers (ViTs) have achieved strong performance in video action recognition, but their high computational cost limits their practicality. Lightweight CNNs are more efficient but suffer from accuracy gaps. Cross-Architecture Knowledge Distillation (CAKD) addresses this by transferring kno

Cited by 0SourcePDFScholar
2026

SGERA: Stein-Guided ECG-Report Alignment for ECG Representation Learning

ICML 2026poster

Electrocardiogram (ECG) representation learning via ECG-report alignment is often hindered by the inherent structural and statistical divergence between signals and natural language. Existing methods struggle to bridge this gap with simple contrastive objectives, but struggle with distribution depen…

Cited by 0SourceScholar
2026

Swift-SVD: Theoretical Optimality Meets Practical Efficiency in Low-Rank LLM Compression

ICML 2026poster

The deployment of Large Language Models is constrained by the memory and bandwidth demands of static weights and dynamic Key-Value cache. SVD-based compression provides a hardware-friendly solution to reduce these costs. However, existing methods suffer from two key limitations: some are suboptimal …

Cited by 0SourceScholar
2025

Accelerated Quasi-Static FEM for Real-Time Modeling of Continuum Robots with Multiple Contacts and Large Deformation

ICRA 2025

Continuum robots offer high flexibility and multiple degrees of freedom, making them ideal for navigating narrow lumens. However, accurately modeling their behavior under large deformations and frequent environmental contacts remains challenging. Current methods for solving the deformation of these

Cited by 2SourceScholar
2025

Backdoor Defense via Enhanced Splitting and Trap Isolation

ICCV 2025poster

Backdoor attacks pose a significant threat to deep neural networks (DNNs), as attackers can inject a backdoor by tampering with only a few samples. The variety of backdoor attacks makes comprehensive defense extremely challenging. Previous defenses typically assume that backdoor samples are out-of-d…

2025

DERI: Cross-Modal ECG Representation Learning with Deep ECG-Report Interaction

IJCAI 2025

Electrocardiogram (ECG) is widely used to diagnose cardiac conditions via deep learning methods. Although existing self-supervised learning (SSL) methods have achieved great performance in learning representation for ECG-based cardiac conditions classification, the clinical semantics can not be effe

2025

DeKeyNLU: Enhancing Natural Language to SQL Generation through Task Decomposition and Keyword Extraction

EMNLP 2025

Natural Language to SQL (NL2SQL) provides a new model-centric paradigm that simplifies database access for non-technical users by converting natural language queries into SQL commands. Recent advancements, particularly those integrating Retrieval-Augmented Generation (RAG) and Chain-of-Thought (CoT)

2025

DexScale: Automating Data Scaling for Sim2Real Generalizable Robot Control

ICML 2025poster

A critical prerequisite for achieving generalizable robot control is the availability of a large-scale robot training dataset. Due to the expense of collecting realistic robotic data, recent studies explored simulating and recording robot skills in virtual environments. While simulated data can be g…

Cited by 0SourcePDFScholar
2025

ECG2TOK: ECG Pre-Training with Self-Distillation Semantic Tokenizers

IJCAI 2025

Self-supervised learning (SSL) has garnered increasing attention in electrocardiogram (ECG) analysis for its effectiveness in resource-limited settings. Existing state-of-the-art SSL methods rely on time-frequency detail reconstruction, but due to the inherent redundancy of ECG signals and individua

2025

FedSum: Data-Efficient Federated Learning Under Data Scarcity Scenario for Text Summarization

AAAI 2025technical

Text summarization task extracts salient information from a large amount of text for productivity enhancement. However, most existing methods heavily rely on training models from ample and centrally stored data which is infeasible to collect in practice, due to privacy concerns and data scarcity nat…

2025

Gap Preserving Distillation by Building Bidirectional Mappings with A Dynamic Teacher

ICLR 2025poster

Knowledge distillation aims to transfer knowledge from a large teacher model to a compact student counterpart, often coming with a significant performance gap between them. Interestingly, we find that a too-large performance gap can hamper the training process. To alleviate this, we propose a **Gap…

Cited by 0SourcePDFScholar
2025

MagicDec: Breaking the Latency-Throughput Tradeoff for Long Context Generation with Speculative Decoding

ICLR 2025poster

Large Language Models (LLMs) have become more prevalent in long-context applications such as interactive chatbots, document analysis, and agent workflows, but it is challenging to serve long-context requests with low latency and high throughput. Speculative decoding (SD) is a widely used technique t…

2025

Multimodal LLMs as Customized Reward Models for Text-to-Image Generation

ICCV 2025poster

We introduce LLaVA-Reward, an efficient reward model designed to automatically evaluate text-to-image (T2I) generations across multiple perspectives, leveraging pretrained multimodal large language models (MLLMs). Existing MLLM-based approaches require instruction-following data for supervised fine-…

2025

Outlier Gradient Analysis: Efficiently Identifying Detrimental Training Samples for Deep Learning Models

ICML 2025oral

A core data-centric learning challenge is the identification of training samples that are detrimental to model performance. Influence functions serve as a prominent tool for this task and offer a robust framework for assessing training data influence on model predictions. Despite their widespread us…

Cited by 1SourcePDFScholar
2025

Planning and Compliant Control for Laparoscopic Ultrasound Scanning System

RA-L 2025

Laparoscopic ultrasound (LUS) serves as a critical technology in intraoperative surgeries, particularly for guiding complex procedures in liver diseases. However, the development of robotic systems for LUS examination remains hindered by challenges such as high costs and the absence of force feedbac

Cited by 0SourceScholar
2025

Restabilizing Diffusion Models with Predictive Noise Fusion Strategy for Image Super-Resolution

AAAI 2025technical

Diffusion models are prominent in image generation for producing detailed and realistic images from Gaussian noises. However, they often encounter instability issues in image restoration tasks, e.g., super-resolution. Existing methods typically rely on multiple runs to find an initial noise that pro…

2025

ST3: Accelerating Multimodal Large Language Model by Spatial-Temporal Visual Token Trimming

AAAI 2025technical

Multimodal large language models (MLLMs) enhance their perceptual capabilities by integrating visual and textual information. However, processing the massive number of visual tokens incurs a significant computational cost. Existing analysis of the MLLM attention mechanisms remains shallow, leading t…

Cited by 2SourcePDFScholar
2025

SV-RAG: LoRA-Contextualizing Adaptation of MLLMs for Long Document Understanding

ICLR 2025poster

Multimodal large language models (MLLMs) have recently shown great progress in text-rich image understanding, yet they still struggle with complex, multi-page visually-rich documents. Traditional methods using document parsers for retrieval-augmented generation suffer from performance and efficiency…

Cited by 0SourcePDFScholar
2024

A probability contrastive learning framework for 3D molecular representation learning

NeurIPS 2024poster

Contrastive Learning (CL) plays a crucial role in molecular representation learning, enabling unsupervised learning from large scale unlabeled molecule datasets. It has inspired various applications in molecular property prediction and drug design. However, existing molecular representation learning…

Cited by 0SourcePDFScholar
2024

BECAUSE: Bilinear Causal Representation for Generalizable Offline Model-based Reinforcement Learning

NeurIPS 2024poster

Offline model-based reinforcement learning (MBRL) enhances data efficiency by utilizing pre-collected datasets to learn models and policies, especially in scenarios where exploration is costly or infeasible. Nevertheless, its performance often suffers from the objective mismatch between model and po…

Cited by 0SourcePDFScholar
2024

BronchoCopilot: Towards Autonomous Robotic Bronchoscopy via Multimodal Reinforcement Learning

IROS 2024poster

Bronchoscopy plays a significant role in the early diagnosis and treatment of lung diseases. This process demands physicians to maneuver the flexible endoscope for reaching distal lesions, particularly requiring substantial expertise when examining the airways of the upper lung lobe. With the develo…

Cited by 1SourceScholar
2024

Co-Axial Slender Tubular robot (CAST): Towards Robotized Operation for Transorbital Neurosurgery with Minimal Invasiveness

ICRA 2024poster

Transorbital Neuro Surgery (TNS) offers a novel treatment towards the lesion inside skull pursuing minimal invasiveness. Most conventional TNS tools are rigid and straight, limiting the dexterity and accessibility in passing a small port. Bendable and steerable surgical tools provides an alternative…

Cited by 0SourceScholar
2024

DD-VNB: A Depth-based Dual-Loop Framework for Real-time Visually Navigated Bronchoscopy

IROS 2024

Real-time 6 DOF localization of bronchoscopes is crucial for enhancing intervention quality. However, current vision-based technologies struggle to balance between generalization to unseen data and computational speed. In this study, we propose a Depth-based Dual-Loop framework for real-time Visuall

Cited by 12SourceScholar
2024

Design and Visual Servoing Control of a Hybrid Dual-Segment Flexible Neurosurgical Robot for Intraventricular Biopsy

ICRA 2024poster

Traditional rigid endoscopes have challenges in flexibly treating tumors located deep in the brain, and low operability and fixed viewing angles limit its development. This study introduces a novel dual-segment flexible robotic endoscope MicroNeuro, designed to perform biopsies with dexterous surgic…

Cited by 3SourceScholar
2024

FinTextQA: A Dataset for Long-form Financial Question Answering

ACL 2024long

Accurate evaluation of financial question answering (QA) systems necessitates a comprehensive dataset encompassing diverse question types and contexts. However, current financial QA datasets lack scope diversity and question complexity. This work introduces FinTextQA, a novel dataset for long-form q…

Cited by 10SourcePDFScholar
2024

Multi-Interface Strain Transfer Modeling for Flexible Endoscope Shape Sensing

RA-L 2024

Robot-assisted minimally invasive surgery (MIS) using flexible endoscopy has emerged as a groundbreaking technology for improving traditional surgical approaches. However, a major challenge in advancing this technology is the lack of shape sensing, which leads to inaccurate navigation and control of

Cited by 9SourceScholar
2024

Representation Learning across Feature and Topology Views with Output Correction for Graph Convolutional Networks

ICASSP 2024accepted

In Graph Convolutional Networks (GCNs), the aggregation of node features in graph convolutional learning is typically guided solely by the topology of the graphs. However, both network topology and node features provide unique and valuable information. Relying solely on topology cannot yield entirel…

Cited by 0SourceScholar
2024

TRINS: Towards Multimodal Language Models that Can Read

CVPR 2024poster

Large multimodal language models have shown remarkable proficiency in understanding and editing images. However a majority of these visually-tuned models struggle to comprehend the textual content embedded in images primarily due to the limitation of training data. In this work we introduce TRINS: a…

Cited by 9SourcePDFScholar
2024

TextLap: Customizing Language Models for Text-to-Layout Planning

EMNLP 2024finding

Automatic generation of graphical layouts is crucial for many real-world applications, including designing posters, flyers, advertisements, and graphical user interfaces. Given the incredible ability of Large language models (LLMs) in both natural language understanding and generation, we believe th…

2024

Texture-Unet: A Texture-Aware Network for Bone Marrow Smear Whole-Slide Image Region of Interest Segmentation

ICASSP 2024accepted

Bone marrow smear cytology involves observing and analyzing the morphological features of bone marrow cells, and identifying regions of interest (ROI) where the cells are morphologically clear and evenly distributed is a crucial part of this process. However, existing deep learning methods for selec…

Cited by 0SourceScholar
2024

Towards Aligned Layout Generation via Diffusion Model with Aesthetic Constraints

ICLR 2024poster

Controllable layout generation refers to the process of creating a plausible visual arrangement of elements within a graphic design (*e.g.*, document and web designs) with constraints representing design intentions. Although recent diffusion-based models have achieved state-of-the-art FID scores, th…

2023

Downscaled Representation Matters: Improving Image Rescaling with Collaborative Downscaled Images

ICCV 2023poster

Deep networks have achieved great success in image rescaling (IR) task that seeks to learn the optimal downscaled representations, i.e., low-resolution (LR) images, to reconstruct the original high-resolution (HR) images. Compared with super-resolution methods that consider a fixed downscaling schem…

Cited by 13PDFcodeScholar
2023

Dynamic Vehicle Graph Interaction for Trajectory Prediction Based on Video Signals

ICASSP 2023accepted

The roadside video surveillance signal can help people achieve vehicle tracking and trajectory generation. Using these trajectories can learn the future motion of vehicles. Existing prediction methods can not analyze the interaction between vehicles well. To this end, we design a dynamic vehicle gra…

Cited by 0SourceScholar
2023

FGPrompt: Fine-grained Goal Prompting for Image-goal Navigation

NeurIPS 2023poster

Learning to navigate to an image-specified goal is an important but challenging task for autonomous systems like household robots. The agent is required to well understand and reason the location of the navigation goal from a picture shot in the goal position. Existing methods try to solve this prob…

Cited by 13SourcePDFScholar
2023

Fully Robotized 3D Ultrasound Image Acquisition for Artery

ICRA 2023poster

Current imaging of the artery relies primarily on computed tomography angiography (CTA), which requires contrast injections and exposure to radiation. In this paper, we present a method for fully autonomous artery 3D image acquisition using a linear ultrasound (US) probe and a 6 DoFs robot arm with…

Cited by 14SourceScholar
2023

Hierarchical Attention Network for Planning-Informed Multi-Agent Trajectory Prediction

IROS 2023poster

The accurate prediction of the neighboring vehicles' trajectories affects the security of autonomous driving vehicles. However, it is challenging for existing methods to anticipating the trajectories of vehicles in the vicinity due to the uncertainty of driving behaviors and the complex interaction…

Cited by 3SourceScholar
2023

Label-Retrieval-Augmented Diffusion Models for Learning from Noisy Labels

NeurIPS 2023poster

Learning from noisy labels is an important and long-standing problem in machine learning for real applications. One of the main research lines focuses on learning a label corrector to purify potential noisy labels. However, these methods typically rely on strict assumptions and are limited to certai…

2022

Adversarial Examples Detection Based on Error Level Analysis and Space Mapping

ICASSP 2022accepted

Deep neural network (DNN) shows impressive performance on many tasks but they usually suffer from adversarial examples with human eyes invisible slight perturbation. Such examples can not be distinguished by human but can mislead DNN classifiers leading to its important role in DNN attack and defens…

Cited by 0SourceScholar
2021

PI-Net: An End-to-End Deep Neural Network for Bidirectionally and Directly Fusing Point Clouds With Images

RA-L 2021

We present a novel network, PI-Net, for the fusion between point clouds and images in this letter. Most existing fusion methods project point clouds into pseudo images and then fuse the pseudo and RGB images with 2D CNNs. To get rid of structuring the pseudo images as the preprocessing, we propose a

Cited by 6SourceScholar
2020

A New Multihypothesis Prediction Scheme for Compressed Video Sensing Reconstruction

ICASSP 2020accepted

For multihypothesis-based compressed video sensing schemes, the low accuracy of weight prediction and degradation of recovery quality for high-motion videos are open challenges. To solve this problem, this paper proposes a new multihypothesis prediction scheme. To efficiently get high-quality hypoth…

Cited by 0SourceScholar
2020

Breaking the Curse of Space Explosion: Towards Efficient NAS with Curriculum Search

ICML 2020poster

Neural architecture search (NAS) has become an important approach to automatically find effective architectures. To cover all possible good architectures, we need to search in an extremely large search space with billions of candidate architectures. More critically, given a large search space, we ma…

2020

Closed-Loop Matters: Dual Regression Networks for Single Image Super-Resolution

CVPR 2020poster

Deep neural networks have exhibited promising performance in image super-resolution (SR) by learning a nonlinear mapping function from low-resolution (LR) images to high-resolution (HR) images. However, there are two underlying limitations to existing SR methods. First, learning the mapping function…

Cited by 425PDFcodeScholar
2020

Fg2seq: Effectively Encoding Knowledge for End-To-End Task-Oriented Dialog

ICASSP 2020accepted

End-to-end Task-oriented spoken dialog systems typically require modeling two types of inputs, namely, the dialog history which is a sequence of utterances and the knowledge base (KB) associated with the dialog history. While modeling these inputs, current state-of-the-art models typically ignore th…

Cited by 0SourceScholar
2020

Grasp Proposal Networks: An End-to-End Solution for Visual Learning of Robotic Grasps

NeurIPS 2020poster

Learning robotic grasps from visual observations is a promising yet challenging task. Recent research shows its great potential by preparing and learning from large-scale synthetic datasets. For the popular, 6 degree-of-freedom (6-DOF) grasp setting of parallel-jaw gripper, most of existing methods…

2020

Image Restoration Via Data-Dependent Proximal Averaged Optimization

ICASSP 2020accepted

Maximum A Posterior (MAP) acts as one of the most popular modeling scheme in image restoration and is usually reduced to a separable optimization model. Unfortunately, it is challenging to establish exact regularization term and the model with complex priors is hard to optimize. In additionally, it…

Cited by 0SourceScholar
2019

NAT: Neural Architecture Transformer for Accurate and Compact Architectures

NeurIPS 2019poster

Designing effective architectures is one of the key factors behind the success of deep neural networks. Existing deep architectures are either manually designed or automatically searched by some Neural Architecture Search (NAS) methods. However, even a well-searched architecture may still contain ma…

2017

A 2-point pose estimation algorithm for monocular visual odometry of ground vehicles

IROS 2017poster

This paper presents a 2-point algorithm for relative pose estimation of a monocular camera mounted on a ground vehicle. Specifically, the geometric model is developed by combining two-view geometry with planar motion constraint. Based on the proposed model, the relative camera pose information can b…

Cited by 5SourceScholar
2015

Adaptive visual trajectory tracking of nonholonomic mobile robots based on trifocal tensor

IROS 2015poster

This paper presents a trifocal tensor based approach for the visual trajectory tracking task of a nonholonomic mobile robot, which is equipped with a roughly installed monocular camera. A set of pre-recorded images are used to express the desired trajectory, and the robot is regulated to track the d…

Cited by 6SourceScholar