Search Results for author: Han Wang

Found 114 papers, 44 papers with code

Personalized Entity Resolution with Dynamic Heterogeneous KnowledgeGraph Representations

no code implementations ACL (ECNLP) 2021 Ying Lin, Han Wang, Jiangning Chen, Tong Wang, Yue Liu, Heng Ji, Yang Liu, Premkumar Natarajan

We first build a cross-source heterogeneous knowledge graph from customer purchase history and product knowledge graph to jointly learn customer and product embeddings.

Entity Resolution

Incorporating Instructional Prompts into a Unified Generative Framework for Joint Multiple Intent Detection and Slot Filling

1 code implementation COLING 2022 Yangjun Wu, Han Wang, Dongxiang Zhang, Gang Chen, Hao Zhang

Specifically, we design 5-type templates as instructional prompts, and each template includes a question that acts as the driver to teach UGEN to grasp the paradigm, options that list the candidate intents or slots to reduce the answer search space, and the context denotes original utterance.

Intent Detection Question Answering +3

Resistive Memory-based Neural Differential Equation Solver for Score-based Diffusion Model

no code implementations8 Apr 2024 Jichang Yang, Hegan Chen, Jia Chen, Songqi Wang, Shaocong Wang, Yifei Yu, Xi Chen, Bo wang, Xinyuan Zhang, Binbin Cui, Ning Lin, Meng Xu, Yi Li, Xiaoxin Xu, Xiaojuan Qi, Zhongrui Wang, Xumeng Zhang, Dashan Shang, Han Wang, Qi Liu, Kwang-Ting Cheng, Ming Liu

Demonstrating equivalent generative quality to the software baseline, our system achieved remarkable enhancements in generative speed for both unconditional and conditional generation tasks, by factors of 64. 8 and 156. 5, respectively.

Edge-computing

Integrating AI in NDE: Techniques, Trends, and Further Directions

no code implementations4 Apr 2024 Eduardo Pérez, Cemil Emre Ardic, Ozan Çakıroğlu, Kevin Jacob, Sayako Kodera, Luca Pompa, Mohamad Rachid, Han Wang, Yiming Zhou, Cyril Zimmer, Florian Römer, Ahmad Osman

Since we cannot discuss each NDE modality in one paper, we limit our attention to magnetic methods, ultrasound, thermography, as well as optical inspection.

Elysium: Exploring Object-level Perception in Videos via MLLM

1 code implementation25 Mar 2024 Han Wang, Yanjie Wang, YongJie Ye, Yuxiang Nie, Can Huang

Multi-modal Large Language Models (MLLMs) have demonstrated their ability to perceive objects in still images, but their application in video-related tasks, such as object tracking, remains understudied.

Object Referring Expression +4

A Simple Mixture Policy Parameterization for Improving Sample Efficiency of CVaR Optimization

no code implementations17 Mar 2024 Yudong Luo, Yangchen Pan, Han Wang, Philip Torr, Pascal Poupart

Reinforcement learning algorithms utilizing policy gradients (PG) to optimize Conditional Value at Risk (CVaR) face significant challenges with sample inefficiency, hindering their practical applications.

Efficient Convolutional Forward Modeling and Sparse Coding in Multichannel Imaging

no code implementations14 Mar 2024 Han Wang, Yhonatan Kvich, Eduardo Pérez, Florian Römer, Yonina C. Eldar

This study considers the Block-Toeplitz structural properties inherent in traditional multichannel forward model matrices, using Full Matrix Capture (FMC) in ultrasonic testing as a case study.

Computational Efficiency

Schema-Aware Multi-Task Learning for Complex Text-to-SQL

no code implementations9 Mar 2024 Yangjun Wu, Han Wang

Conventional text-to-SQL parsers are not good at synthesizing complex SQL queries that involve multiple tables or columns, due to the challenges inherent in identifying the correct schema items and performing accurate alignment between question and schema items.

Multi-Task Learning Text-To-SQL +1

Emerging Synergies Between Large Language Models and Machine Learning in Ecommerce Recommendations

no code implementations5 Mar 2024 Xiaonan Xu, Yichao Wu, Penghao Liang, Yuhang He, Han Wang

With the boom of e-commerce and web applications, recommender systems have become an important part of our daily lives, providing personalized recommendations based on the user's preferences.

Collaborative Filtering Recommendation Systems

Jointly Learning Selection Matrices For Transmitters, Receivers And Fourier Coefficients In Multichannel Imaging

no code implementations29 Feb 2024 Han Wang, Yiming Zhou, Eduardo Perez, Florian Roemer

Strategic subsampling has become a focal point due to its effectiveness in compressing data, particularly in the Full Matrix Capture (FMC) approach in ultrasonic imaging.

Beyond Accuracy: An Empirical Study on Unit Testing in Open-source Deep Learning Projects

no code implementations26 Feb 2024 Han Wang, Sijia Yu, Chunyang Chen, Burak Turhan, Xiaodong Zhu

Deep Learning (DL) models have rapidly advanced, focusing on achieving high performance through testing model accuracy and robustness.

MemeCraft: Contextual and Stance-Driven Multimodal Meme Generation

1 code implementation24 Feb 2024 Han Wang, Roy Ka-Wei Lee

Online memes have emerged as powerful digital cultural artifacts in the age of social media, offering not only humor but also platforms for political discourse, social critique, and information dissemination.

Self-Distillation Bridges Distribution Gap in Language Model Fine-Tuning

1 code implementation21 Feb 2024 Zhaorui Yang, Qian Liu, Tianyu Pang, Han Wang, Haozhe Feng, Minfeng Zhu, Wei Chen

The surge in Large Language Models (LLMs) has revolutionized natural language processing, but fine-tuning them for specific tasks often encounters challenges in balancing performance and preserving general instruction-following abilities.

Instruction Following Language Modelling

Soft Self-Consistency Improves Language Model Agents

1 code implementation20 Feb 2024 Han Wang, Archiki Prasad, Elias Stengel-Eskin, Mohit Bansal

Current "sample and select" methods such as self-consistency (SC) rely on majority voting to score answers.

Language Modelling valid

Chinese MentalBERT: Domain-Adaptive Pre-training on Social Media for Chinese Mental Health Text Analysis

1 code implementation14 Feb 2024 Wei Zhai, Hongzhi Qi, Qing Zhao, Jianqiang Li, Ziqi Wang, Han Wang, Bing Xiang Yang, Guanghui Fu

To address this, we have collected a huge dataset from Chinese social media platforms and enriched it with publicly available datasets to create a comprehensive database encompassing 3. 36 million text entries.

Language Modelling

MMAUD: A Comprehensive Multi-Modal Anti-UAV Dataset for Modern Miniature Drone Threats

1 code implementation6 Feb 2024 Shenghai Yuan, Yizhuo Yang, Thien Hoang Nguyen, Thien-Minh Nguyen, Jianfei Yang, Fen Liu, Jianping Li, Han Wang, Lihua Xie

In response to the evolving challenges posed by small unmanned aerial vehicles (UAVs), which possess the potential to transport harmful payloads or independently cause damage, we introduce MMAUD: a comprehensive Multi-Modal Anti-UAV Dataset.

Finite-Time Analysis of On-Policy Heterogeneous Federated Reinforcement Learning

no code implementations27 Jan 2024 Chenyu Zhang, Han Wang, Aritra Mitra, James Anderson

In response, we introduce FedSARSA, a novel federated on-policy reinforcement learning scheme, equipped with linear function approximation, to address these challenges and provide a comprehensive finite-time error analysis.

reinforcement-learning

Meta-Learning Linear Quadratic Regulators: A Policy Gradient MAML Approach for the Model-free LQR

1 code implementation25 Jan 2024 Leonardo F. Toso, Donglin Zhan, James Anderson, Han Wang

We investigate the problem of learning Linear Quadratic Regulators (LQR) in a multi-task, heterogeneous, and model-free setting.

Meta-Learning

GloTSFormer: Global Video Text Spotting Transformer

1 code implementation8 Jan 2024 Han Wang, Yanjie Wang, Yang Li, Can Huang

In this paper, we propose a novel Global Video Text Spotting Transformer GloTSFormer to model the tracking problem as global associations and utilize the Gaussian Wasserstein distance to guide the morphological correlation between frames.

Text Spotting

Prompting Large Language Models for Topic Modeling

no code implementations15 Dec 2023 Han Wang, Nirmalendu Prakash, Nguyen Khoi Hoang, Ming Shan Hee, Usman Naseem, Roy Ka-Wei Lee

Topic modeling is a widely used technique for revealing underlying thematic structures within textual data.

Sentence

TLM: Token-Level Masking for Transformers

1 code implementation28 Oct 2023 Yangjun Wu, Kebin Fang, Dongxiang Zhang, Han Wang, Hao Zhang, Gang Chen

Structured dropout approaches, such as attention dropout and DropHead, have been investigated to regularize the multi-head attention mechanism in Transformers.

Data-to-Text Generation Grammatical Error Correction +1

Efficient Numerical Algorithm for Large-Scale Damped Natural Gradient Descent

no code implementations26 Oct 2023 Yixiao Chen, Hao Xie, Han Wang

We propose a new algorithm for efficiently solving the damped Fisher matrix in large-scale scenarios where the number of parameters significantly exceeds the number of available samples.

Oracle Complexity Reduction for Model-free LQR: A Stochastic Variance-Reduced Policy Gradient Approach

1 code implementation19 Sep 2023 Leonardo F. Toso, Han Wang, James Anderson

We investigate the problem of learning an $\epsilon$-approximate solution for the discrete-time Linear Quadratic Regulator (LQR) problem via a Stochastic Variance-Reduced Policy Gradient (SVRPG) approach.

Policy Gradient Methods

Stochastic Optimization of Coupled Power Distribution-Urban Transportation Network Operations with Autonomous Mobility on Demand Systems

no code implementations20 Aug 2023 Han Wang, Xiaoyuan Xu, Yue Chen, Zheng Yan, Mohammad Shahidehpour, Jiaqi Li, Shaolun Xu

Then, a bi-level power-traffic flow (PTF) model is proposed to characterize the interaction of power distribution networks (PDNs) and urban transportation networks (UTNs).

Stochastic Optimization

Contracting with Heterogeneous Researchers

no code implementations14 Jul 2023 Han Wang

We study the design of contracts that incentivize a researcher to conduct a costly experiment, extending the work of Yoder (2022) from binary states to a general state space.

Measuring and Mitigating Interference in Reinforcement Learning

no code implementations10 Jul 2023 Vincent Liu, Han Wang, Ruo Yu Tao, Khurram Javed, Adam White, Martha White

Lastly, we outline a class of algorithms which we call online-aware that are designed to mitigate interference, and show they do reduce interference according to our measure and that they improve stability and performance in several classic control environments.

reinforcement-learning

CA-CentripetalNet: A novel anchor-free deep learning framework for hardhat wearing detection

no code implementations9 Jul 2023 Zhijian Liu, Nian Cai, Wensheng Ouyang, Chengbin Zhang, Nili Tian, Han Wang

Automatic hardhat wearing detection can strengthen the safety management in construction sites, which is still challenging due to complicated video surveillance scenes.

Management

Clickbait Detection via Large Language Models

1 code implementation16 Jun 2023 Han Wang, Yi Zhu, Ye Wang, Yun Li, Yunhao Yuan, Jipeng Qiang

Clickbait, which aims to induce users with some surprising and even thrilling headlines for increasing click-through rates, permeates almost all online content publishers, such as news portals and social media.

Clickbait Detection

MCPI: Integrating Multimodal Data for Enhanced Prediction of Compound Protein Interactions

no code implementations15 Jun 2023 Li Zhang, Wenhao Li, Haotian Guan, Zhiquan He, Mingjun Cheng, Han Wang

The identification of compound-protein interactions (CPI) plays a critical role in drug screening, drug repurposing, and combination therapy studies.

Look Beneath the Surface: Exploiting Fundamental Symmetry for Sample-Efficient Offline RL

1 code implementation NeurIPS 2023 Peng Cheng, Xianyuan Zhan, Zhihao Wu, Wenjia Zhang, Shoucheng Song, Han Wang, Youfang Lin, Li Jiang

Based on extensive experiments, we find TSRL achieves great performance on small benchmark datasets with as few as 1% of the original samples, which significantly outperforms the recent offline RL algorithms in terms of data efficiency and generalizability. Code is available at: https://github. com/pcheng2/TSRL

Data Augmentation Offline RL +1

Evaluating GPT-3 Generated Explanations for Hateful Content Moderation

1 code implementation28 May 2023 Han Wang, Ming Shan Hee, Md Rabiul Awal, Kenny Tsu Wei Choo, Roy Ka-Wei Lee

A key concern is that these explanations, generated by LLMs, may lead to erroneous judgments about the nature of flagged content by both users and content moderators.

Informativeness Persuasiveness

Hierarchical Game for Coupled Power System with Energy Sharing and Transportation System

no code implementations27 May 2023 Dongxiang Yan, Tongxin Li, Changhong Zhao, Han Wang, Yue Chen

This necessitates new business models in the power sector to hedge against uncertainties while imposing a strong coupling between the connected power and transportation networks.

Replay Memory as An Empirical MDP: Combining Conservative Estimation with Experience Replay

1 code implementation ICLR 2023 Hongming Zhang, Chenjun Xiao, Han Wang, Jun Jin, Bo Xu, Martin Müller

In this work, we further exploit the information in the replay memory by treating it as an empirical \emph{Replay Memory MDP (RM-MDP)}.

MMRDN: Consistent Representation for Multi-View Manipulation Relationship Detection in Object-Stacked Scenes

no code implementations25 Apr 2023 Han Wang, Jiayuan Zhang, Lipeng Wan, Xingyu Chen, Xuguang Lan, Nanning Zheng

Manipulation relationship detection (MRD) aims to guide the robot to grasp objects in the right order, which is important to ensure the safety and reliability of grasping in object stacked scenes.

Position Relationship Detection

Side Channel-Assisted Inference Leakage from Machine Learning-based ECG Classification

no code implementations4 Apr 2023 Jialin Liu, Ning Miao, Chongzhou Fang, Houman Homayoun, Han Wang

In particular, we first identify the vulnerability of DTW for ECG classification, i. e., the correlation between warping path choice and prediction results.

Classification Dynamic Time Warping +2

Learning Personalized Models with Clustered System Identification

1 code implementation3 Apr 2023 Leonardo F. Toso, Han Wang, James Anderson

We address the problem of learning linear system models from observing multiple trajectories from different system dynamics.

The In-Sample Softmax for Offline Reinforcement Learning

4 code implementations28 Feb 2023 Chenjun Xiao, Han Wang, Yangchen Pan, Adam White, Martha White

We highlight a simple fact: it is more straightforward to approximate an in-sample \emph{softmax} using only actions in the dataset.

Offline RL reinforcement-learning +1

Comparison and Analysis of Cognitive Load under 2D/3D Visual Stimuli

no code implementations25 Feb 2023 Yu Liu, Chen Song, Yunpeng Yin, Herui Shi, Jinglin Sun, Han Wang, Peiguang Jing

However, for videos that involve calculation tasks (P > 0. 05), the difference in cognitive load induced by 2D and 3D stimuli is not as pronounced.

EEG Experimental Design

Cooperative Driving for Speed Harmonization in Mixed-Traffic Environments

no code implementations15 Feb 2023 Zhe Fu, Abdul Rahman Kreidieh, Han Wang, Jonathan W. Lee, Maria Laura Delle Monache, Alexandre M. Bayen

Autonomous driving systems present promising methods for congestion mitigation in mixed autonomy traffic control settings.

Autonomous Driving

Federated Temporal Difference Learning with Linear Function Approximation under Environmental Heterogeneity

no code implementations4 Feb 2023 Han Wang, Aritra Mitra, Hamed Hassani, George J. Pappas, James Anderson

We initiate the study of federated reinforcement learning under environmental heterogeneity by considering a policy evaluation problem.

Robust Markov Decision Processes without Model Estimation

no code implementations2 Feb 2023 Wenhao Yang, Han Wang, Tadashi Kozuno, Scott M. Jordan, Zhihua Zhang

Moreover, we prove the alternative form still plays a similar role as the original form.

WINNER: Weakly-Supervised hIerarchical decompositioN and aligNment for Spatio-tEmporal Video gRounding

no code implementations CVPR 2023 Mengze Li, Han Wang, Wenqiao Zhang, Jiaxu Miao, Zhou Zhao, Shengyu Zhang, Wei Ji, Fei Wu

WINNER first builds the language decomposition tree in a bottom-up manner, upon which the structural attention mechanism and top-down feature backtracking jointly build a multi-modal decomposition tree, permitting a hierarchical understanding of unstructured videos.

Contrastive Learning Spatio-Temporal Video Grounding +1

GWRBoost:A geographically weighted gradient boosting method for explainable quantification of spatially-varying relationships

no code implementations12 Dec 2022 Han Wang, Zhou Huang, Ganmin Yin, Yi Bao, Xiao Zhou, Yong Gao

The geographically weighted regression (GWR) is an essential tool for estimating the spatial variation of relationships between dependent and independent variables in geographical contexts.

regression

FedSysID: A Federated Approach to Sample-Efficient System Identification

1 code implementation25 Nov 2022 Han Wang, Leonardo F. Toso, James Anderson

We study the problem of learning a linear system model from the observations of $M$ clients.

Federated Learning

Few-Shot Character Understanding in Movies as an Assessment to Meta-Learning of Theory-of-Mind

1 code implementation9 Nov 2022 Mo Yu, Qiujing Wang, Shunchi Zhang, Yisi Sang, Kangsheng Pu, Zekai Wei, Han Wang, Liyan Xu, Jing Li, Yue Yu, Jie zhou

Our dataset consists of ~1, 000 parsed movie scripts, each corresponding to a few-shot character understanding task that requires models to mimic humans' ability of fast digesting characters with a few starting scenes in a new movie.

Meta-Learning Metric Learning

BLOOM: A 176B-Parameter Open-Access Multilingual Language Model

6 code implementations9 Nov 2022 BigScience Workshop, :, Teven Le Scao, Angela Fan, Christopher Akiki, Ellie Pavlick, Suzana Ilić, Daniel Hesslow, Roman Castagné, Alexandra Sasha Luccioni, François Yvon, Matthias Gallé, Jonathan Tow, Alexander M. Rush, Stella Biderman, Albert Webson, Pawan Sasanka Ammanamanchi, Thomas Wang, Benoît Sagot, Niklas Muennighoff, Albert Villanova del Moral, Olatunji Ruwase, Rachel Bawden, Stas Bekman, Angelina McMillan-Major, Iz Beltagy, Huu Nguyen, Lucile Saulnier, Samson Tan, Pedro Ortiz Suarez, Victor Sanh, Hugo Laurençon, Yacine Jernite, Julien Launay, Margaret Mitchell, Colin Raffel, Aaron Gokaslan, Adi Simhi, Aitor Soroa, Alham Fikri Aji, Amit Alfassy, Anna Rogers, Ariel Kreisberg Nitzav, Canwen Xu, Chenghao Mou, Chris Emezue, Christopher Klamm, Colin Leong, Daniel van Strien, David Ifeoluwa Adelani, Dragomir Radev, Eduardo González Ponferrada, Efrat Levkovizh, Ethan Kim, Eyal Bar Natan, Francesco De Toni, Gérard Dupont, Germán Kruszewski, Giada Pistilli, Hady Elsahar, Hamza Benyamina, Hieu Tran, Ian Yu, Idris Abdulmumin, Isaac Johnson, Itziar Gonzalez-Dios, Javier de la Rosa, Jenny Chim, Jesse Dodge, Jian Zhu, Jonathan Chang, Jörg Frohberg, Joseph Tobing, Joydeep Bhattacharjee, Khalid Almubarak, Kimbo Chen, Kyle Lo, Leandro von Werra, Leon Weber, Long Phan, Loubna Ben allal, Ludovic Tanguy, Manan Dey, Manuel Romero Muñoz, Maraim Masoud, María Grandury, Mario Šaško, Max Huang, Maximin Coavoux, Mayank Singh, Mike Tian-Jian Jiang, Minh Chien Vu, Mohammad A. Jauhar, Mustafa Ghaleb, Nishant Subramani, Nora Kassner, Nurulaqilla Khamis, Olivier Nguyen, Omar Espejel, Ona de Gibert, Paulo Villegas, Peter Henderson, Pierre Colombo, Priscilla Amuok, Quentin Lhoest, Rheza Harliman, Rishi Bommasani, Roberto Luis López, Rui Ribeiro, Salomey Osei, Sampo Pyysalo, Sebastian Nagel, Shamik Bose, Shamsuddeen Hassan Muhammad, Shanya Sharma, Shayne Longpre, Somaieh Nikpoor, Stanislav Silberberg, Suhas Pai, Sydney Zink, Tiago Timponi Torrent, Timo Schick, Tristan Thrush, Valentin Danchev, Vassilina Nikoulina, Veronika Laippala, Violette Lepercq, Vrinda Prabhu, Zaid Alyafeai, Zeerak Talat, Arun Raja, Benjamin Heinzerling, Chenglei Si, Davut Emre Taşar, Elizabeth Salesky, Sabrina J. Mielke, Wilson Y. Lee, Abheesht Sharma, Andrea Santilli, Antoine Chaffin, Arnaud Stiegler, Debajyoti Datta, Eliza Szczechla, Gunjan Chhablani, Han Wang, Harshit Pandey, Hendrik Strobelt, Jason Alan Fries, Jos Rozen, Leo Gao, Lintang Sutawika, M Saiful Bari, Maged S. Al-shaibani, Matteo Manica, Nihal Nayak, Ryan Teehan, Samuel Albanie, Sheng Shen, Srulik Ben-David, Stephen H. Bach, Taewoon Kim, Tali Bers, Thibault Fevry, Trishala Neeraj, Urmish Thakker, Vikas Raunak, Xiangru Tang, Zheng-Xin Yong, Zhiqing Sun, Shaked Brody, Yallow Uri, Hadar Tojarieh, Adam Roberts, Hyung Won Chung, Jaesung Tae, Jason Phang, Ofir Press, Conglong Li, Deepak Narayanan, Hatim Bourfoune, Jared Casper, Jeff Rasley, Max Ryabinin, Mayank Mishra, Minjia Zhang, Mohammad Shoeybi, Myriam Peyrounette, Nicolas Patry, Nouamane Tazi, Omar Sanseviero, Patrick von Platen, Pierre Cornette, Pierre François Lavallée, Rémi Lacroix, Samyam Rajbhandari, Sanchit Gandhi, Shaden Smith, Stéphane Requena, Suraj Patil, Tim Dettmers, Ahmed Baruwa, Amanpreet Singh, Anastasia Cheveleva, Anne-Laure Ligozat, Arjun Subramonian, Aurélie Névéol, Charles Lovering, Dan Garrette, Deepak Tunuguntla, Ehud Reiter, Ekaterina Taktasheva, Ekaterina Voloshina, Eli Bogdanov, Genta Indra Winata, Hailey Schoelkopf, Jan-Christoph Kalo, Jekaterina Novikova, Jessica Zosa Forde, Jordan Clive, Jungo Kasai, Ken Kawamura, Liam Hazan, Marine Carpuat, Miruna Clinciu, Najoung Kim, Newton Cheng, Oleg Serikov, Omer Antverg, Oskar van der Wal, Rui Zhang, Ruochen Zhang, Sebastian Gehrmann, Shachar Mirkin, Shani Pais, Tatiana Shavrina, Thomas Scialom, Tian Yun, Tomasz Limisiewicz, Verena Rieser, Vitaly Protasov, Vladislav Mikhailov, Yada Pruksachatkun, Yonatan Belinkov, Zachary Bamberger, Zdeněk Kasner, Alice Rueda, Amanda Pestana, Amir Feizpour, Ammar Khan, Amy Faranak, Ana Santos, Anthony Hevia, Antigona Unldreaj, Arash Aghagol, Arezoo Abdollahi, Aycha Tammour, Azadeh HajiHosseini, Bahareh Behroozi, Benjamin Ajibade, Bharat Saxena, Carlos Muñoz Ferrandis, Daniel McDuff, Danish Contractor, David Lansky, Davis David, Douwe Kiela, Duong A. Nguyen, Edward Tan, Emi Baylor, Ezinwanne Ozoani, Fatima Mirza, Frankline Ononiwu, Habib Rezanejad, Hessie Jones, Indrani Bhattacharya, Irene Solaiman, Irina Sedenko, Isar Nejadgholi, Jesse Passmore, Josh Seltzer, Julio Bonis Sanz, Livia Dutra, Mairon Samagaio, Maraim Elbadri, Margot Mieskes, Marissa Gerchick, Martha Akinlolu, Michael McKenna, Mike Qiu, Muhammed Ghauri, Mykola Burynok, Nafis Abrar, Nazneen Rajani, Nour Elkott, Nour Fahmy, Olanrewaju Samuel, Ran An, Rasmus Kromann, Ryan Hao, Samira Alizadeh, Sarmad Shubber, Silas Wang, Sourav Roy, Sylvain Viguier, Thanh Le, Tobi Oyebade, Trieu Le, Yoyo Yang, Zach Nguyen, Abhinav Ramesh Kashyap, Alfredo Palasciano, Alison Callahan, Anima Shukla, Antonio Miranda-Escalada, Ayush Singh, Benjamin Beilharz, Bo wang, Caio Brito, Chenxi Zhou, Chirag Jain, Chuxin Xu, Clémentine Fourrier, Daniel León Periñán, Daniel Molano, Dian Yu, Enrique Manjavacas, Fabio Barth, Florian Fuhrimann, Gabriel Altay, Giyaseddin Bayrak, Gully Burns, Helena U. Vrabec, Imane Bello, Ishani Dash, Jihyun Kang, John Giorgi, Jonas Golde, Jose David Posada, Karthik Rangasai Sivaraman, Lokesh Bulchandani, Lu Liu, Luisa Shinzato, Madeleine Hahn de Bykhovetz, Maiko Takeuchi, Marc Pàmies, Maria A Castillo, Marianna Nezhurina, Mario Sänger, Matthias Samwald, Michael Cullan, Michael Weinberg, Michiel De Wolf, Mina Mihaljcic, Minna Liu, Moritz Freidank, Myungsun Kang, Natasha Seelam, Nathan Dahlberg, Nicholas Michio Broad, Nikolaus Muellner, Pascale Fung, Patrick Haller, Ramya Chandrasekhar, Renata Eisenberg, Robert Martin, Rodrigo Canalli, Rosaline Su, Ruisi Su, Samuel Cahyawijaya, Samuele Garda, Shlok S Deshmukh, Shubhanshu Mishra, Sid Kiblawi, Simon Ott, Sinee Sang-aroonsiri, Srishti Kumar, Stefan Schweter, Sushil Bharati, Tanmay Laud, Théo Gigant, Tomoya Kainuma, Wojciech Kusa, Yanis Labrak, Yash Shailesh Bajaj, Yash Venkatraman, Yifan Xu, Yingxin Xu, Yu Xu, Zhe Tan, Zhongli Xie, Zifan Ye, Mathilde Bras, Younes Belkada, Thomas Wolf

Large language models (LLMs) have been shown to be able to perform new tasks based on a few demonstrations or natural language instructions.

Language Modelling Multilingual NLP

Language Model Pre-Training with Sparse Latent Typing

1 code implementation23 Oct 2022 Liliang Ren, Zixuan Zhang, Han Wang, Clare R. Voss, ChengXiang Zhai, Heng Ji

Modern large-scale Pre-trained Language Models (PLMs) have achieved tremendous success on a wide range of downstream tasks.

Ranked #6 on Few-shot NER on Few-NERD (INTRA) (using extra training data)

Few-shot NER Language Modelling +1

Causal Inference via Nonlinear Variable Decorrelation for Healthcare Applications

no code implementations29 Sep 2022 Junda Wang, Weijian Li, Han Wang, Hanjia Lyu, Caroline Thirukumaran, Addisu Mesfin, Jiebo Luo

Causal inference and model interpretability research are gaining increasing attention, especially in the domains of healthcare and bioinformatics.

Causal Inference

Deep Variational Free Energy Approach to Dense Hydrogen

1 code implementation13 Sep 2022 Hao Xie, Zi-Hang Li, Han Wang, Linfeng Zhang, Lei Wang

We developed a deep generative model-based variational free energy approach to the equations of state of dense hydrogen.

PTSEFormer: Progressive Temporal-Spatial Enhanced TransFormer Towards Video Object Detection

1 code implementation6 Sep 2022 Han Wang, Jun Tang, Xiaodong Liu, Shanyan Guan, Rong Xie, Li Song

The temporal information is introduced by the temporal feature aggregation model (TFAM), by conducting an attention mechanism between the context frames and the target frame (i. e., the frame to be detected).

object-detection Video Object Detection

DPA-1: Pretraining of Attention-based Deep Potential Model for Molecular Simulation

1 code implementation17 Aug 2022 Duo Zhang, Hangrui Bi, Fu-Zhi Dai, Wanrun Jiang, Linfeng Zhang, Han Wang

Machine learning assisted modeling of the inter-atomic potential energy surface (PES) is revolutionizing the field of molecular simulation.

DPOAD: Differentially Private Outsourcing of Anomaly Detection through Iterative Sensitivity Learning

no code implementations27 Jun 2022 Meisam Mohammady, Han Wang, Lingyu Wang, Mengyuan Zhang, Yosr Jarraya, Suryadipta Majumdar, Makan Pourzandi, Mourad Debbabi, Yuan Hong

Outsourcing anomaly detection to third-parties can allow data owners to overcome resource constraints (e. g., in lightweight IoT devices), facilitate collaborative analysis (e. g., under distributed or multi-party scenarios), and benefit from lower costs and specialized expertise (e. g., of Managed Security Service Providers).

Anomaly Detection

DeePKS+ABACUS as a Bridge between Expensive Quantum Mechanical Models and Machine Learning Potentials

no code implementations21 Jun 2022 Wenfei Li, Qi Ou, Yixiao Chen, Yu Cao, Renxi Liu, Chunyi Zhang, Daye Zheng, Chun Cai, Xifan Wu, Han Wang, Mohan Chen, Linfeng Zhang

However, for high-level QM methods, such as density functional theory (DFT) at the meta-GGA level and/or with exact exchange, quantum Monte Carlo, etc., generating a sufficient amount of data for training a ML potential has remained computationally challenging due to their high cost.

Efficient Neural Network

RVAE-LAMOL: Residual Variational Autoencoder to Enhance Lifelong Language Learning

1 code implementation22 May 2022 Han Wang, Ruiliu Fu, Xuejun Zhang, Jun Zhou

In order to alleviate catastrophic forgetting, we propose the residual variational autoencoder (RVAE) to enhance LAMOL, a recent LLL model, by mapping different tasks into a limited unified semantic space.

SVR-based Observer Design for Unknown Linear Systems: Complexity and Performance

no code implementations14 May 2022 Xuda Ding, Han Wang, Jianping He, Cailian Chen, Xinping Guan

The variances of the estimation error and the fluctuations in performance are smaller with a properly-designed parameter $\gamma$ compared with the OLS methods.

DouFu: A Double Fusion Joint Learning Method For Driving Trajectory Representation

no code implementations5 May 2022 Han Wang, Zhou Huang, Xiao Zhou, Ganmin Yin, Yi Bao, Yi Zhang

The attention fusion module incorporates route features with movement features to create a better spatial-temporal embedding.

Representation Learning

Safety-Aware Optimal Control for Motion Planning with Low Computing Complexity

no code implementations28 Apr 2022 Xuda Ding, Han Wang, Jianping He, Cailian Chen, Kostas Margellos, Antonis Papachristodoulou

Simulations demonstrates that BRSCA has a higher probability of finding feasible solutions, reduces the computation time by about 17. 4% and the energy cost by about four times compared to other methods in the literature.

Motion Planning

Automatic Multi-Label Prompting: Simple and Interpretable Few-Shot Classification

1 code implementation NAACL 2022 Han Wang, Canwen Xu, Julian McAuley

Prompt-based learning (i. e., prompting) is an emerging paradigm for exploiting knowledge learned by a pretrained language model.

Few-Shot Text Classification Language Modelling +1

FedADMM: A Federated Primal-Dual Algorithm Allowing Partial Participation

no code implementations28 Mar 2022 Han Wang, Siddartha Marella, James Anderson

Federated learning is a framework for distributed optimization that places emphasis on communication efficiency.

Distributed Optimization Federated Learning

Dynamic Flow Equilibrium of Transportation and Power Distribution Networks Considering Flexible Traveling Choices and Voltage Quality Improvement

no code implementations9 Dec 2021 Jiaqi Li, Xiaoyuan Xu, Zheng Yan, Han Wang, Yue Chen

The increasing global spread of electric vehicles (EVs) has introduced significant interdependence between transportation and power networks.

Computational Efficiency

Learning Linear Models Using Distributed Iterative Hessian Sketching

no code implementations8 Dec 2021 Han Wang, James Anderson

This work considers the problem of learning the Markov parameters of a linear system from observed data.

Decomposing Complex Questions Makes Multi-Hop QA Easier and More Interpretable

1 code implementation Findings (EMNLP) 2021 Ruiliu Fu, Han Wang, Xuejun Zhang, Jun Zhou, Yonghong Yan

The Relation Extractor decomposes the complex question, and then the Reader answers the sub-questions in turn, and finally the Comparator performs numerical comparison and summarizes all to get the final answer, where the entire process itself constitutes a complete reasoning evidence path.

Relation

Robust Glare Detection: Review, Analysis, and Dataset Release

no code implementations12 Oct 2021 Mahdi Abolfazli Esfahani, Han Wang

The source of glare is not limited to the sun, and glare can be seen in the images captured during the nighttime and in indoor environments, which is due to the presence of different light sources; reflective surfaces also influence the generation of such artifacts.

Autonomous Vehicles

Greedy-based Value Representation for Efficient Coordination in Multi-agent Reinforcement Learning

no code implementations29 Sep 2021 Lipeng Wan, Zeyang Liu, Xingyu Chen, Han Wang, Xuguang Lan

Due to the representation limitation of the joint Q value function, multi-agent reinforcement learning (MARL) methods with linear or monotonic value decomposition can not ensure the optimal consistency (i. e. the correspondence between the individual greedy actions and the maximal true Q value), leading to instability and poor coordination.

Multi-agent Reinforcement Learning reinforcement-learning +1

Large-Scale System Identification Using a Randomized SVD

no code implementations6 Sep 2021 Han Wang, James Anderson

Learning a dynamical system from input/output data is a fundamental task in the control design pipeline.

Visual Enhanced 3D Point Cloud Reconstruction from A Single Image

no code implementations17 Aug 2021 Guiju Ping, Mahdi Abolfazli Esfahani, Han Wang

Solving the challenging problem of 3D object reconstruction from a single image appropriately gives existing technologies the ability to perform with a single monocular camera rather than requiring depth sensors.

3D Object Reconstruction From A Single Image 3D Point Cloud Reconstruction +1

Optimizing NLU Reranking Using Entity Resolution Signals in Multi-domain Dialog Systems

no code implementations NAACL 2021 Tong Wang, Jiangning Chen, Mohsen Malmir, Shuyan Dong, Xin He, Han Wang, Chengwei Su, Yue Liu, Yang Liu

In dialog systems, the Natural Language Understanding (NLU) component typically makes the interpretation decision (including domain, intent and slots) for an utterance before the mentioned entities are resolved.

Entity Resolution intent-classification +2

Retrieval Enhanced Model for Commonsense Generation

1 code implementation Findings (ACL) 2021 Han Wang, Yang Liu, Chenguang Zhu, Linjun Shou, Ming Gong, Yichong Xu, Michael Zeng

Commonsense generation is a challenging task of generating a plausible sentence describing an everyday scenario using provided concepts.

Retrieval Sentence +1

A Novel Binocular Eye-Tracking SystemWith Stereo Stimuli for 3D Gaze Estimation

no code implementations25 Apr 2021 Jinglin Sun, Zhipeng Wu, Han Wang, Peiguang Jing, Yu Liu

However, most current eye trackers focus on 2D point of gaze (PoG) estimation and cannot provide accurate gaze depth. Concerning future applications such as HCI with 3D displays, we propose a novel binocular eye tracking device with stereo stimuli to provide highly accurate 3D PoG estimation.

Depth Estimation Gaze Estimation

Personalized Entity Resolution with Dynamic Heterogeneous Knowledge Graph Representations

no code implementations6 Apr 2021 Ying Lin, Han Wang, Jiangning Chen, Tong Wang, Yue Liu, Heng Ji, Yang Liu, Premkumar Natarajan

For example, with "add milk to my cart", a customer may refer to a certain organic product, while some customers may want to re-order products they regularly purchase.

Entity Resolution

The Phase Diagram of a Deep Potential Water Model

no code implementations9 Feb 2021 Linfeng Zhang, Han Wang, Roberto Car, Weinan E

Using the Deep Potential methodology, we construct a model that reproduces accurately the potential energy surface of the SCAN approximation of density functional theory for water, from low temperature and pressure to about 2400 K and 50 GPa, excluding the vapor stability region.

Chemical Physics

Masked Face Image Classification with Sparse Representation based on Majority Voting Mechanism

no code implementations9 Nov 2020 Han Wang

Sparse approximation is the problem to find the sparsest linear combination for a signal from a redundant dictionary, which is widely applied in signal processing and compressed sensing.

Classification General Classification +1

DeePKS: a comprehensive data-driven approach towards chemically accurate density functional theory

no code implementations1 Aug 2020 Yixiao Chen, Linfeng Zhang, Han Wang, E Weinan

We propose a general machine learning-based framework for building an accurate and widely-applicable energy functional within the framework of generalized Kohn-Sham density functional theory.

BIG-bench Machine Learning

Online Visual Place Recognition via Saliency Re-identification

1 code implementation29 Jul 2020 Han Wang, Chen Wang, Lihua Xie

As an essential component of visual simultaneous localization and mapping (SLAM), place recognition is crucial for robot navigation and autonomous driving.

Autonomous Driving Robot Navigation +3

Deep Potential generation scheme and simulation protocol for the Li10GeP2S12-type superionic conductors

no code implementations5 Jun 2020 Jianxing Huang, Linfeng Zhang, Han Wang, Jinbao Zhao, Jun Cheng, Weinan E

It has been a challenge to accurately simulate Li-ion diffusion processes in battery materials at room temperature using {\it ab initio} molecular dynamics (AIMD) due to its high computational cost.

Computational Physics Materials Science Chemical Physics

SentPWNet: A Unified Sentence Pair Weighting Network for Task-specific Sentence Embedding

no code implementations22 May 2020 Li Zhang, Han Wang, Lingxiao Li

Our model, SentPWNet, exploits the neighboring spatial distribution of each sentence as locality weight to indicate the informative level of sentence pair.

Metric Learning Sentence +3

Pushing the limit of molecular dynamics with ab initio accuracy to 100 million atoms with machine learning

1 code implementation1 May 2020 Weile Jia, Han Wang, Mohan Chen, Denghui Lu, Lin Lin, Roberto Car, Weinan E, Linfeng Zhang

For 35 years, {\it ab initio} molecular dynamics (AIMD) has been the method of choice for modeling complex atomistic phenomena from first principles.

Computational Physics

Intensity Scan Context: Coding Intensity and Geometry Relations for Loop Closure Detection

1 code implementation12 Mar 2020 Han Wang, Chen Wang, Lihua Xie

Loop closure detection is an essential and challenging problem in simultaneous localization and mapping (SLAM).

Loop Closure Detection Retrieval +1

Fast Loop Closure Detection via Binary Content

no code implementations25 Feb 2020 Han Wang, Juncheng Li, Maopeng Ran, Lihua Xie

Our method is compared with the state-of-the-art loop closure detection methods and the results show that it outperforms the traditional methods at both recall rate and speed.

Image Retrieval Loop Closure Detection +2

DP-GEN: A concurrent learning platform for the generation of reliable deep learning based potential energy models

1 code implementation28 Oct 2019 Yuzhi Zhang, Haidi Wang, WeiJie Chen, Jinzhe Zeng, Linfeng Zhang, Han Wang, Weinan E

Materials 3, 023804] and is capable of generating uniformly accurate deep learning based PES models in a way that minimizes human intervention and the computational cost for data generation and model training.

Computational Physics

VideoDP: A Universal Platform for Video Analytics with Differential Privacy

no code implementations18 Sep 2019 Han Wang, Shangyu Xie, Yuan Hong

In this paper, to the best of our knowledge, we propose the first differentially private video analytics platform (VideoDP) which flexibly supports different video analyses with rigorous privacy guarantee.

Deep neural network for Wannier function centers

1 code implementation27 Jun 2019 Linfeng Zhang, Mohan Chen, Xifan Wu, Han Wang, Weinan E, Roberto Car

We introduce a deep neural network (DNN) model that assigns the position of the centers of the electronic charge in each atomic configuration on a molecular dynamics trajectory.

Computational Physics Materials Science Chemical Physics

Machine learning-guided synthesis of advanced inorganic materials

1 code implementation10 May 2019 Bijun Tang, Yuhao Lu, Jiadong Zhou, Han Wang, Prafful Golani, Manzhang Xu, Quan Xu, Cuntai Guan, Zheng Liu

Synthesis of advanced inorganic materials with minimum number of trials is of paramount importance towards the acceleration of inorganic materials development.

BIG-bench Machine Learning

Learning to Decompose Compound Questions with Reinforcement Learning

no code implementations ICLR 2019 Haihong Yang, Han Wang, Shuang Guo, Wei zhang, Huajun Chen

Our model consists of two parts: (i) a novel learning-to-decompose agent that learns a policy to decompose a compound question into simple questions and (ii) three independent simple-question answerers that classify the corresponding relations for each simple question.

Question Answering reinforcement-learning +1

Active Learning of Uniformly Accurate Inter-atomic Potentials for Materials Simulation

no code implementations28 Oct 2018 Linfeng Zhang, De-Ye Lin, Han Wang, Roberto Car, Weinan E

An active learning procedure called Deep Potential Generator (DP-GEN) is proposed for the construction of accurate and transferable machine learning-based models of the potential energy surface (PES) for the molecular modeling of materials.

Active Learning BIG-bench Machine Learning

Learn to Steer through Deep Reinforcement Learning

1 code implementation Sensors 2018 Keyu Wu, Mahdi Abolfazli Esfahani, Shenghai Yuan, Han Wang

It is worth noting that the developed system is readily transferable from virtual training scenarios to real-world deployment without any fine-tuning by utilizing depth images.

reinforcement-learning Reinforcement Learning (RL)

End-to-end Symmetry Preserving Inter-atomic Potential Energy Model for Finite and Extended Systems

1 code implementation NeurIPS 2018 Linfeng Zhang, Jiequn Han, Han Wang, Wissam A. Saidi, Roberto Car, Weinan E

Machine learning models are changing the paradigm of molecular modeling, which is a fundamental tool for material science, chemistry, and computational biology.

Computational Physics Materials Science Chemical Physics

English Out-of-Vocabulary Lexical Evaluation Task

no code implementations11 Apr 2018 Han Wang, Ye Wang, Xinxiang Zhang, Mi Lu, Yoonsuck Choe, Jingjing Cao

Unlike previous unknown nouns tagging task, this is the first attempt to focus on out-of-vocabulary (OOV) lexical evaluation tasks that do not require any prior knowledge.

Attribute Classification +1

DeePMD-kit: A deep learning package for many-body potential energy representation and molecular dynamics

2 code implementations11 Dec 2017 Han Wang, Linfeng Zhang, Jiequn Han, Weinan E

Here we describe DeePMD-kit, a package written in Python/C++ that has been designed to minimize the effort required to build deep learning based representation of potential energy and force field and to perform molecular dynamics.

Reinforced dynamics for enhanced sampling in large atomic and molecular systems

no code implementations10 Dec 2017 Linfeng Zhang, Han Wang, Weinan E

Like metadynamics, it allows for an efficient exploration of the configuration space by adding an adaptively computed biasing potential to the original dynamics.

Efficient Exploration reinforcement-learning +1

Deep Potential Molecular Dynamics: a scalable model with the accuracy of quantum mechanics

5 code implementations30 Jul 2017 Linfeng Zhang, Jiequn Han, Han Wang, Roberto Car, Weinan E

We introduce a scheme for molecular simulations, the Deep Potential Molecular Dynamics (DeePMD) method, based on a many-body potential and interatomic forces generated by a carefully crafted deep neural network trained with ab initio data.

Detecting facial landmarks in the video based on a hybrid framework

no code implementations21 Sep 2016 Nian Cai, Zhineng Lin, Fu Zhang, Guandong Cen, Han Wang

Finally, the facial landmarks in the current frame are exactly detected from the validated face bounding box via the landmark detector.

Face Detection

Time-domain multiscale shape identification in electro-sensing

no code implementations12 Sep 2014 Habib Ammari, Han Wang

This paper presents premier and innovative time-domain multi-scale method for shape identification in electro-sensing using pulse-type signals.

Wavelet methods for shape perception in electro-sensing

no code implementations10 Oct 2013 Habib Ammari, Stéphane Mallat, Irène Waldspurger, Han Wang

This paper aims at presenting a new approach to the electro-sensing problem using wavelets.

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