Search Results for author: Chenyu Wang

Found 43 papers, 14 papers with code

Seeing from Another Perspective: Evaluating Multi-View Understanding in MLLMs

no code implementations21 Apr 2025 Chun-Hsiao Yeh, Chenyu Wang, Shengbang Tong, Ta-Ying Cheng, Rouyu Wang, Tianzhe Chu, Yuexiang Zhai, Yubei Chen, Shenghua Gao, Yi Ma

Multi-view understanding, the ability to reconcile visual information across diverse viewpoints for effective navigation, manipulation, and 3D scene comprehension, is a fundamental challenge in Multi-Modal Large Language Models (MLLMs) to be used as embodied agents.

Attribute Camera Pose Estimation +1

CellFlow: Simulating Cellular Morphology Changes via Flow Matching

no code implementations13 Feb 2025 Yuhui Zhang, Yuchang Su, Chenyu Wang, Tianhong Li, Zoe Wefers, Jeffrey Nirschl, James Burgess, Daisy Ding, Alejandro Lozano, Emma Lundberg, Serena Yeung-Levy

Building a virtual cell capable of accurately simulating cellular behaviors in silico has long been a dream in computational biology.

Inference-Time Alignment in Diffusion Models with Reward-Guided Generation: Tutorial and Review

no code implementations16 Jan 2025 Masatoshi Uehara, Yulai Zhao, Chenyu Wang, Xiner Li, Aviv Regev, Sergey Levine, Tommaso Biancalani

We review these methods from a unified perspective, demonstrating that current techniques -- such as Sequential Monte Carlo (SMC)-based guidance, value-based sampling, and classifier guidance -- aim to approximate soft optimal denoising processes (a. k. a.

Denoising Protein Design

Predicting Human Brain States with Transformer

1 code implementation11 Dec 2024 Yifei Sun, Mariano Cabezas, JiAh Lee, Chenyu Wang, Wei zhang, Fernando Calamante, Jinglei Lv

The human brain is a complex and highly dynamic system, and our current knowledge of its functional mechanism is still very limited.

Language Modelling Music Generation

Semantic Consistency-Based Uncertainty Quantification for Factuality in Radiology Report Generation

1 code implementation5 Dec 2024 Chenyu Wang, Weichao Zhou, Shantanu Ghosh, Kayhan Batmanghelich, Wenchao Li

Radiology report generation (RRG) has shown great potential in assisting radiologists by automating the labor-intensive task of report writing.

Diagnostic Sentence +1

CAD-MLLM: Unifying Multimodality-Conditioned CAD Generation With MLLM

no code implementations7 Nov 2024 Jingwei Xu, Chenyu Wang, Zibo Zhao, Wen Liu, Yi Ma, Shenghua Gao

This paper aims to design a unified Computer-Aided Design (CAD) generation system that can easily generate CAD models based on the user's inputs in the form of textual description, images, point clouds, or even a combination of them.

Fine-Tuning Discrete Diffusion Models via Reward Optimization with Applications to DNA and Protein Design

1 code implementation17 Oct 2024 Chenyu Wang, Masatoshi Uehara, Yichun He, Amy Wang, Tommaso Biancalani, Avantika Lal, Tommi Jaakkola, Sergey Levine, Hanchen Wang, Aviv Regev

Finally, we demonstrate the effectiveness of DRAKES in generating DNA and protein sequences that optimize enhancer activity and protein stability, respectively, important tasks for gene therapies and protein-based therapeutics.

Protein Design Reinforcement Learning (RL)

"What" x "When" working memory representations using Laplace Neural Manifolds

no code implementations30 Sep 2024 Aakash Sarkar, Chenyu Wang, Shangfu Zuo, Marc W. Howard

We study a specific choice $\unicode{x2013}$ a Laplace space with exponential basis functions for time coupled to an "Inverse Laplace" space with circumscribed basis functions in time.

Unsupervised dMRI Artifact Detection via Angular Resolution Enhancement and Cycle Consistency Learning

no code implementations24 Sep 2024 Sheng Chen, Zihao Tang, Xinyi Wang, Chenyu Wang, Weidong Cai

UdAD-AC leverages dMRI angular resolution enhancement and cycle consistency learning to capture the effective representation of artifact-free dMRI data during training, and it identifies data containing artifacts using designed confidence score during inference.

Artifact Detection

Denoising Reuse: Exploiting Inter-frame Motion Consistency for Efficient Video Latent Generation

no code implementations19 Sep 2024 Chenyu Wang, Shuo Yan, Yixuan Chen, Yujiang Wang, Mingzhi Dong, Xiaochen Yang, Dongsheng Li, Robert P. Dick, Qin Lv, Fan Yang, Tun Lu, Ning Gu, Li Shang

Our key discovery is that coarse-grained noises in earlier denoising steps have demonstrated high motion consistency across consecutive video frames.

Denoising Video Generation

Enhancing Angular Resolution via Directionality Encoding and Geometric Constraints in Brain Diffusion Tensor Imaging

no code implementations11 Sep 2024 Sheng Chen, Zihao Tang, Mariano Cabezas, Xinyi Wang, Arkiev D'Souza, Michael Barnett, Fernando Calamante, Weidong Cai, Chenyu Wang

Diffusion-weighted imaging (DWI) is a type of Magnetic Resonance Imaging (MRI) technique sensitised to the diffusivity of water molecules, offering the capability to inspect tissue microstructures and is the only in-vivo method to reconstruct white matter fiber tracts non-invasively.

Symmetry Awareness Encoded Deep Learning Framework for Brain Imaging Analysis

1 code implementation12 Jul 2024 Yang Ma, Dongang Wang, Peilin Liu, Lynette Masters, Michael Barnett, Weidong Cai, Chenyu Wang

The heterogeneity of neurological conditions, ranging from structural anomalies to functional impairments, presents a significant challenge in medical imaging analysis tasks.

Deep Learning Diagnostic

Evaluating Zero-Shot Long-Context LLM Compression

no code implementations10 Jun 2024 Chenyu Wang, Yihan Wang

This study evaluates the effectiveness of zero-shot compression techniques on large language models (LLMs) under long-context.

In-Context Symmetries: Self-Supervised Learning through Contextual World Models

no code implementations28 May 2024 Sharut Gupta, Chenyu Wang, Yifei Wang, Tommi Jaakkola, Stefanie Jegelka

In this work, drawing insights from world models, we propose to instead learn a general representation that can adapt to be invariant or equivariant to different transformations by paying attention to context -- a memory module that tracks task-specific states, actions, and future states.

Self-Supervised Learning

How Much Data are Enough? Investigating Dataset Requirements for Patch-Based Brain MRI Segmentation Tasks

no code implementations4 Apr 2024 Dongang Wang, Peilin Liu, Hengrui Wang, Heidi Beadnall, Kain Kyle, Linda Ly, Mariano Cabezas, Geng Zhan, Ryan Sullivan, Weidong Cai, Wanli Ouyang, Fernando Calamante, Michael Barnett, Chenyu Wang

This paper focuses on an early stage phase of deep learning research, prior to model development, and proposes a strategic framework for estimating the amount of annotated data required to train patch-based segmentation networks.

MRI segmentation

Hierarchical State Space Models for Continuous Sequence-to-Sequence Modeling

1 code implementation15 Feb 2024 Raunaq Bhirangi, Chenyu Wang, Venkatesh Pattabiraman, Carmel Majidi, Abhinav Gupta, Tess Hellebrekers, Lerrel Pinto

Reasoning from sequences of raw sensory data is a ubiquitous problem across fields ranging from medical devices to robotics.

Mamba Prediction +1

Dirichlet Flow Matching with Applications to DNA Sequence Design

2 code implementations8 Feb 2024 Hannes Stark, Bowen Jing, Chenyu Wang, Gabriele Corso, Bonnie Berger, Regina Barzilay, Tommi Jaakkola

Further, we provide distilled Dirichlet flow matching, which enables one-step sequence generation with minimal performance hits, resulting in $O(L)$ speedups compared to autoregressive models.

MLLM-Tool: A Multimodal Large Language Model For Tool Agent Learning

2 code implementations19 Jan 2024 Chenyu Wang, Weixin Luo, Qianyu Chen, Haonan Mai, Jindi Guo, Sixun Dong, Xiaohua, Xuan, Zhengxin Li, Lin Ma, Shenghua Gao

Recently, the astonishing performance of large language models (LLMs) in natural language comprehension and generation tasks triggered lots of exploration of using them as central controllers to build agent systems.

Language Modeling Language Modelling +2

Removing Biases from Molecular Representations via Information Maximization

1 code implementation1 Dec 2023 Chenyu Wang, Sharut Gupta, Caroline Uhler, Tommi Jaakkola

High-throughput drug screening -- using cell imaging or gene expression measurements as readouts of drug effect -- is a critical tool in biotechnology to assess and understand the relationship between the chemical structure and biological activity of a drug.

Fairness Molecular Property Prediction +2

EPIM: Efficient Processing-In-Memory Accelerators based on Epitome

no code implementations12 Nov 2023 Chenyu Wang, Zhen Dong, Daquan Zhou, Zhenhua Zhu, Yu Wang, Jiashi Feng, Kurt Keutzer

On the hardware side, we modify the datapath of current PIM accelerators to accommodate epitomes and implement a feature map reuse technique to reduce computation cost.

Model Compression Neural Architecture Search +1

A hybrid Decoder-DeepONet operator regression framework for unaligned observation data

1 code implementation18 Aug 2023 Bo Chen, Chenyu Wang, Weipeng Li, Haiyang Fu

Results illustrate the advantages of Decoder-DeepONet and Multi-Decoder-DeepONet in handling unaligned observation data and showcase their potentials in improving prediction accuracy.

Decoder regression

Precise Few-shot Fat-free Thigh Muscle Segmentation in T1-weighted MRI

no code implementations27 Apr 2023 Sheng Chen, Zihao Tang, Dongnan Liu, Ché Fornusek, Michael Barnett, Chenyu Wang, Mariano Cabezas, Weidong Cai

However, due to the insufficient amount of precise annotations, thigh muscle masks generated by deep learning approaches tend to misclassify intra-muscular fat (IMF) as muscle impacting the analysis of muscle volumetrics.

Pseudo Label

Learning from pseudo-labels: deep networks improve consistency in longitudinal brain volume estimation

no code implementations8 Feb 2023 Geng Zhan, Dongang Wang, Mariano Cabezas, Lei Bai, Kain Kyle, Wanli Ouyang, Michael Barnett, Chenyu Wang

An accurate and robust quantitative measurement of brain volume change is paramount for translational research and clinical applications.

Accurate Instance-Level CAD Model Retrieval in a Large-Scale Database

no code implementations4 Jul 2022 Jiaxin Wei, Lan Hu, Chenyu Wang, Laurent Kneip

We present a new solution to the fine-grained retrieval of clean CAD models from a large-scale database in order to recover detailed object shape geometries for RGBD scans.

Re-Ranking Retrieval

VECtor: A Versatile Event-Centric Benchmark for Multi-Sensor SLAM

no code implementations4 Jul 2022 Ling Gao, Yuxuan Liang, Jiaqi Yang, Shaoxun Wu, Chenyu Wang, Jiaben Chen, Laurent Kneip

Event cameras have recently gained in popularity as they hold strong potential to complement regular cameras in situations of high dynamics or challenging illumination.

Simultaneous Localization and Mapping

Precise Indoor Positioning Based on UWB and Deep Learning

no code implementations17 Apr 2022 Chenyu Wang, Zihuai Lin

We examined UWB-based indoor location in conjunction with a fingerprint technique in this work.

Deep Learning

DELTA: Dynamically Optimizing GPU Memory beyond Tensor Recomputation

1 code implementation30 Mar 2022 Yu Tang, Chenyu Wang, Yufan Zhang, Yuliang Liu, Xingcheng Zhang, Linbo Qiao, Zhiquan Lai, Dongsheng Li

To the best of our knowledge, we are the first to make a reasonable dynamic runtime scheduler on the combination of tensor swapping and tensor recomputation without user oversight.

Decompose to Adapt: Cross-domain Object Detection via Feature Disentanglement

1 code implementation6 Jan 2022 Dongnan Liu, Chaoyi Zhang, Yang song, Heng Huang, Chenyu Wang, Michael Barnett, Weidong Cai

Recent advances in unsupervised domain adaptation (UDA) techniques have witnessed great success in cross-domain computer vision tasks, enhancing the generalization ability of data-driven deep learning architectures by bridging the domain distribution gaps.

Disentanglement object-detection +3

HAGEN: Homophily-Aware Graph Convolutional Recurrent Network for Crime Forecasting

no code implementations27 Sep 2021 Chenyu Wang, Zongyu Lin, Xiaochen Yang, Jiao Sun, Mingxuan Yue, Cyrus Shahabi

Based on the homophily assumption of GNN, we propose a homophily-aware constraint to regularize the optimization of the region graph so that neighboring region nodes on the learned graph share similar crime patterns, thus fitting the mechanism of diffusion convolution.

Crime Prediction Graph Learning +1

Open Domain Generalization with Domain-Augmented Meta-Learning

no code implementations CVPR 2021 Yang Shu, Zhangjie Cao, Chenyu Wang, Jianmin Wang, Mingsheng Long

Leveraging datasets available to learn a model with high generalization ability to unseen domains is important for computer vision, especially when the unseen domain's annotated data are unavailable.

Domain Generalization Meta-Learning

MOOCCube: A Large-scale Data Repository for NLP Applications in MOOCs

no code implementations ACL 2020 Jifan Yu, Gan Luo, Tong Xiao, Qingyang Zhong, Yuquan Wang, Wenzheng Feng, Junyi Luo, Chenyu Wang, Lei Hou, Juanzi Li, Zhiyuan Liu, Jie Tang

The prosperity of Massive Open Online Courses (MOOCs) provides fodder for many NLP and AI research for education applications, e. g., course concept extraction, prerequisite relation discovery, etc.

Course Concept Expansion in MOOCs with External Knowledge and Interactive Game

no code implementations ACL 2019 Jifan Yu, Chenyu Wang, Gan Luo, Lei Hou, Juanzi Li, Jie Tang, Zhiyuan Liu

As Massive Open Online Courses (MOOCs) become increasingly popular, it is promising to automatically provide extracurricular knowledge for MOOC users.

Multiple Sclerosis Lesion Inpainting Using Non-Local Partial Convolutions

no code implementations24 Dec 2018 Hao Xiong, Chaoyue Wang, DaCheng Tao, Michael Barnett, Chenyu Wang

However, existing methods inpaint lesions based on texture information derived from local surrounding tissue, often leading to inconsistent inpainting and the generation of artifacts such as intensity discrepancy and blurriness.

Nonparametric Variational Auto-encoders for Hierarchical Representation Learning

no code implementations ICCV 2017 Prasoon Goyal, Zhiting Hu, Xiaodan Liang, Chenyu Wang, Eric Xing

In this work, we propose hierarchical nonparametric variational autoencoders, which combines tree-structured Bayesian nonparametric priors with VAEs, to enable infinite flexibility of the latent representation space.

Clustering Representation Learning +1

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