Search Results for author: YiXuan Wang

Found 31 papers, 9 papers with code

LM-Combiner: A Contextual Rewriting Model for Chinese Grammatical Error Correction

no code implementations26 Mar 2024 YiXuan Wang, Baoxin Wang, Yijun Liu, Dayong Wu, Wanxiang Che

In this light, we propose the LM-Combiner, a rewriting model that can directly modify the over-correction of GEC system outputs without a model ensemble.

Grammatical Error Correction

Progress and Opportunities of Foundation Models in Bioinformatics

no code implementations6 Feb 2024 Qing Li, Zhihang Hu, YiXuan Wang, Lei LI, Yimin Fan, Irwin King, Le Song, Yu Li

Central to our focus is the application of FMs to specific biological problems, aiming to guide the research community in choosing appropriate FMs for their research needs.

Boosting Long-Delayed Reinforcement Learning with Auxiliary Short-Delayed Task

no code implementations5 Feb 2024 Qingyuan Wu, Simon Sinong Zhan, YiXuan Wang, Chung-Wei Lin, Chen Lv, Qi Zhu, Chao Huang

Reinforcement learning is challenging in delayed scenarios, a common real-world situation where observations and interactions occur with delays.

reinforcement-learning

S$^{2}$-DMs:Skip-Step Diffusion Models

1 code implementation3 Jan 2024 YiXuan Wang, Shuangyin Li

On the CIFAR10 dataset, models trained using our algorithm showed an improvement of 3. 27% to 14. 06% over models trained with traditional methods across various sampling algorithms (DDIMs, PNDMs, DEIS) and different numbers of sampling steps (10, 20, ..., 1000).

Single-Cell RNA-seq Synthesis with Latent Diffusion Model

no code implementations21 Dec 2023 YiXuan Wang, Shuangyin Li, Shimin Di, Lei Chen

The single-cell RNA sequencing (scRNA-seq) technology enables researchers to study complex biological systems and diseases with high resolution.

Empowering Autonomous Driving with Large Language Models: A Safety Perspective

no code implementations28 Nov 2023 YiXuan Wang, Ruochen Jiao, Sinong Simon Zhan, Chengtian Lang, Chao Huang, Zhaoran Wang, Zhuoran Yang, Qi Zhu

Autonomous Driving (AD) encounters significant safety hurdles in long-tail unforeseen driving scenarios, largely stemming from the non-interpretability and poor generalization of the deep neural networks within the AD system, particularly in out-of-distribution and uncertain data.

Autonomous Driving Common Sense Reasoning +1

Multi-view learning for automatic classification of multi-wavelength auroral images

no code implementations6 Nov 2023 Qiuju Yang, Hang Su, Lili Liu, YiXuan Wang, Ze-Jun Hu

Finally, to highlight the discriminative information between auroral classes, we propose a lightweight attention feature enhancement module called LAFE.

Classification Computational Efficiency +1

State-Wise Safe Reinforcement Learning With Pixel Observations

1 code implementation3 Nov 2023 Simon Sinong Zhan, YiXuan Wang, Qingyuan Wu, Ruochen Jiao, Chao Huang, Qi Zhu

In the context of safe exploration, Reinforcement Learning (RL) has long grappled with the challenges of balancing the tradeoff between maximizing rewards and minimizing safety violations, particularly in complex environments with contact-rich or non-smooth dynamics, and when dealing with high-dimensional pixel observations.

reinforcement-learning Reinforcement Learning (RL) +2

D$^3$Fields: Dynamic 3D Descriptor Fields for Zero-Shot Generalizable Robotic Manipulation

no code implementations28 Sep 2023 YiXuan Wang, Zhuoran Li, Mingtong Zhang, Katherine Driggs-Campbell, Jiajun Wu, Li Fei-Fei, Yunzhu Li

These fields capture the dynamics of the underlying 3D environment and encode both semantic features and instance masks.

Kinematics-aware Trajectory Generation and Prediction with Latent Stochastic Differential Modeling

no code implementations17 Sep 2023 Ruochen Jiao, YiXuan Wang, Xiangguo Liu, Chao Huang, Qi Zhu

However, it remains a challenging problem for these methods to ensure that the generated/predicted trajectories are physically realistic.

Autonomous Driving Trajectory Prediction

Dynamic-Resolution Model Learning for Object Pile Manipulation

no code implementations29 Jun 2023 YiXuan Wang, Yunzhu Li, Katherine Driggs-Campbell, Li Fei-Fei, Jiajun Wu

Prior works typically assume representation at a fixed dimension or resolution, which may be inefficient for simple tasks and ineffective for more complicated tasks.

Model Predictive Control Object

CSED: A Chinese Semantic Error Diagnosis Corpus

no code implementations9 May 2023 Bo Sun, Baoxin Wang, YiXuan Wang, Wanxiang Che, Dayong Wu, Shijin Wang, Ting Liu

Our experiments show that powerful pre-trained models perform poorly on this corpus.

POLAR-Express: Efficient and Precise Formal Reachability Analysis of Neural-Network Controlled Systems

1 code implementation31 Mar 2023 YiXuan Wang, Weichao Zhou, Jiameng Fan, Zhilu Wang, Jiajun Li, Xin Chen, Chao Huang, Wenchao Li, Qi Zhu

We also present a novel approach to propagate TMs more efficiently and precisely across ReLU activation functions.

Fourier Continuation for Exact Derivative Computation in Physics-Informed Neural Operators

no code implementations29 Nov 2022 Haydn Maust, Zongyi Li, YiXuan Wang, Daniel Leibovici, Oscar Bruno, Thomas Hou, Anima Anandkumar

The physics-informed neural operator (PINO) is a machine learning architecture that has shown promising empirical results for learning partial differential equations.

CLIP2GAN: Towards Bridging Text with the Latent Space of GANs

no code implementations28 Nov 2022 YiXuan Wang, Wengang Zhou, Jianmin Bao, Weilun Wang, Li Li, Houqiang Li

The key idea of our CLIP2GAN is to bridge the output feature embedding space of CLIP and the input latent space of StyleGAN, which is realized by introducing a mapping network.

Attribute Image Generation +1

Enforcing Hard Constraints with Soft Barriers: Safe Reinforcement Learning in Unknown Stochastic Environments

no code implementations29 Sep 2022 YiXuan Wang, Simon Sinong Zhan, Ruochen Jiao, Zhilu Wang, Wanxin Jin, Zhuoran Yang, Zhaoran Wang, Chao Huang, Qi Zhu

It is quite challenging to ensure the safety of reinforcement learning (RL) agents in an unknown and stochastic environment under hard constraints that require the system state not to reach certain specified unsafe regions.

Reinforcement Learning (RL) Safe Reinforcement Learning

A Tool for Neural Network Global Robustness Certification and Training

no code implementations15 Aug 2022 Zhilu Wang, YiXuan Wang, Feisi Fu, Ruochen Jiao, Chao Huang, Wenchao Li, Qi Zhu

Moreover, GROCET provides differentiable global robustness, which is leveraged in the training of globally robust neural networks.

Second Order Ensemble Langevin Method for Sampling and Inverse Problems

no code implementations9 Aug 2022 Ziming Liu, Andrew M. Stuart, YiXuan Wang

We propose a sampling method based on an ensemble approximation of second order Langevin dynamics.

Position

Interpretable RNA Foundation Model from Unannotated Data for Highly Accurate RNA Structure and Function Predictions

1 code implementation1 Apr 2022 Jiayang Chen, Zhihang Hu, Siqi Sun, Qingxiong Tan, YiXuan Wang, Qinze Yu, Licheng Zong, Liang Hong, Jin Xiao, Tao Shen, Irwin King, Yu Li

Non-coding RNA structure and function are essential to understanding various biological processes, such as cell signaling, gene expression, and post-transcriptional regulations.

Self-Supervised Learning

Joint Differentiable Optimization and Verification for Certified Reinforcement Learning

no code implementations28 Jan 2022 YiXuan Wang, Simon Zhan, Zhilu Wang, Chao Huang, Zhaoran Wang, Zhuoran Yang, Qi Zhu

In model-based reinforcement learning for safety-critical control systems, it is important to formally certify system properties (e. g., safety, stability) under the learned controller.

Bilevel Optimization Model-based Reinforcement Learning +2

CLMB: deep contrastive learning for robust metagenomic binning

1 code implementation18 Nov 2021 Pengfei Zhang, Zhengyuan Jiang, YiXuan Wang, Yu Li

Essentially, instead of denoising the data explicitly, we add simulated noise to the training data and force the deep learning model to produce similar and stable representations for both the noise-free data and the distorted data.

Benchmarking Contrastive Learning +1

Learning-based Framework for Sensor Fault-Tolerant Building HVAC Control with Model-assisted Learning

no code implementations27 Jun 2021 Shichao Xu, Yangyang Fu, YiXuan Wang, Zheng O'Neill, Qi Zhu

As people spend up to 87% of their time indoors, intelligent Heating, Ventilation, and Air Conditioning (HVAC) systems in buildings are essential for maintaining occupant comfort and reducing energy consumption.

POLAR: A Polynomial Arithmetic Framework for Verifying Neural-Network Controlled Systems

2 code implementations25 Jun 2021 Chao Huang, Jiameng Fan, Zhilu Wang, YiXuan Wang, Weichao Zhou, Jiajun Li, Xin Chen, Wenchao Li, Qi Zhu

We present POLAR, a polynomial arithmetic-based framework for efficient bounded-time reachability analysis of neural-network controlled systems (NNCSs).

Cross-hospital Sepsis Early Detection via Semi-supervised Optimal Transport with Self-paced Ensemble

1 code implementation18 Jun 2021 Ruiqing Ding, Yu Zhou, Jie Xu, Yan Xie, Qiqiang Liang, He Ren, YiXuan Wang, Yanlin Chen, Leye Wang, Man Huang

To address this issue, we propose a novel semi-supervised transfer learning framework based on optimal transport theory and self-paced ensemble for Sepsis early detection, called SPSSOT, which can efficiently transfer knowledge from the source hospital (with rich labeled data) to the target hospital (with scarce labeled data).

Domain Adaptation Semi-supervised Domain Adaptation +1

Verification in the Loop: Correct-by-Construction Control Learning with Reach-avoid Guarantees

no code implementations6 Jun 2021 YiXuan Wang, Chao Huang, Zhaoran Wang, Zhilu Wang, Qi Zhu

Specifically, we leverage the verification results (computed reachable set of the system state) to construct feedback metrics for control learning, which measure how likely the current design of control parameters can meet the required reach-avoid property for safety and goal-reaching.

Tracking Partially-Occluded Deformable Objects while Enforcing Geometric Constraints

1 code implementation1 Nov 2020 YiXuan Wang, Dale McConachie, Dmitry Berenson

In order to manipulate a deformable object, such as rope or cloth, in unstructured environments, robots need a way to estimate its current shape.

Object

Learning to Prevent Leakage: Privacy-Preserving Inference in the Mobile Cloud

no code implementations18 Dec 2019 Shuang Zhang, Liyao Xiang, CongCong Li, YiXuan Wang, Quanshi Zhang, Wei Wang, Bo Li

Powered by machine learning services in the cloud, numerous learning-driven mobile applications are gaining popularity in the market.

Neural Architecture Search Privacy Preserving +1

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