Search Results for author: Jiawei Wang

Found 41 papers, 16 papers with code

XuanCe: A Comprehensive and Unified Deep Reinforcement Learning Library

1 code implementation25 Dec 2023 Wenzhang Liu, Wenzhe Cai, Kun Jiang, Guangran Cheng, Yuanda Wang, Jiawei Wang, Jingyu Cao, Lele Xu, Chaoxu Mu, Changyin Sun

In this paper, we present XuanCe, a comprehensive and unified deep reinforcement learning (DRL) library designed to be compatible with PyTorch, TensorFlow, and MindSpore.

reinforcement-learning

X$^2$-VLM: All-In-One Pre-trained Model For Vision-Language Tasks

2 code implementations22 Nov 2022 Yan Zeng, Xinsong Zhang, Hang Li, Jiawei Wang, Jipeng Zhang, Wangchunshu Zhou

Vision language pre-training aims to learn alignments between vision and language from a large amount of data.

 Ranked #1 on Cross-Modal Retrieval on Flickr30k (using extra training data)

Cross-Modal Retrieval Image Captioning +7

Mixture-of-Domain-Adapters: Decoupling and Injecting Domain Knowledge to Pre-trained Language Models Memories

1 code implementation8 Jun 2023 Shizhe Diao, Tianyang Xu, Ruijia Xu, Jiawei Wang, Tong Zhang

Pre-trained language models (PLMs) demonstrate excellent abilities to understand texts in the generic domain while struggling in a specific domain.

Domain Adaptation

Write and Paint: Generative Vision-Language Models are Unified Modal Learners

1 code implementation15 Jun 2022 Shizhe Diao, Wangchunshu Zhou, Xinsong Zhang, Jiawei Wang

In this work, we disclose the potential of symmetric generative vision-language pre-training in learning to write and paint concurrently, and propose a new unified modal model, named DaVinci, trained with prefix language modeling and prefix image modeling, a simple generative self-supervised objective on image-text pairs.

Language Modelling Text Generation +1

DeeP-LCC: Data-EnablEd Predictive Leading Cruise Control in Mixed Traffic Flow

1 code implementation20 Mar 2022 Jiawei Wang, Yang Zheng, Keqiang Li, Qing Xu

For the control of connected and autonomous vehicles (CAVs), most existing methods focus on model-based strategies.

Autonomous Vehicles LEMMA

Implementation and Experimental Validation of Data-Driven Predictive Control for Dissipating Stop-and-Go Waves in Mixed Traffic

1 code implementation7 Apr 2022 Jiawei Wang, Yang Zheng, Jianghong Dong, Chaoyi Chen, Mengchi Cai, Keqiang Li, Qing Xu

In this paper, we present the first experimental results of data-driven predictive control for connected and autonomous vehicles (CAVs) in dissipating traffic waves.

Autonomous Vehicles Traffic Prediction

Restoring Execution Environments of Jupyter Notebooks

1 code implementation4 Mar 2021 Jiawei Wang, Li Li, Andreas Zeller

More than ninety percent of published Jupyter notebooks do not state dependencies on external packages.

Software Engineering

Leading Cruise Control in Mixed Traffic Flow

1 code implementation23 Jul 2020 Jiawei Wang, Yang Zheng, Chaoyi Chen, Qing Xu, Keqiang Li

Numerical studies confirm the potential of LCC to strengthen the capability of CAVs in suppressing traffic instabilities and smoothing traffic flow.

Systems and Control Systems and Control Optimization and Control

Leading Cruise Control in Mixed Traffic Flow: System Modeling, Controllability, and String Stability

1 code implementation8 Dec 2020 Jiawei Wang, Yang Zheng, Chaoyi Chen, Qing Xu, Keqiang Li

Most existing strategies for CAVs' longitudinal control focus on downstream traffic conditions, but neglect the impact of CAVs' behaviors on upstream traffic flow.

Autonomous Vehicles

Recall and Learn: A Memory-augmented Solver for Math Word Problems

1 code implementation Findings (EMNLP) 2021 Shifeng Huang, Jiawei Wang, Jiao Xu, Da Cao, Ming Yang

Specifically, given a math word problem, the model first retrieves similar questions by a memory module and then encodes the unsolved problem and each retrieved question using a representation module.

Math Math Word Problem Solving

Multi-lane Unsignalized Intersection Cooperation with Flexible Lane Direction based on Multi-vehicle Formation Control

3 code implementations25 Aug 2021 Mengchi Cai, Qing Xu, Chaoyi Chen, Jiawei Wang, Keqiang Li, Jianqiang Wang, Xiangbin Wu

Unsignalized intersection cooperation of connected and automated vehicles (CAVs) is able to eliminate green time loss of signalized intersections and improve traffic efficiency.

Distributed data-driven predictive control for cooperatively smoothing mixed traffic flow

1 code implementation24 Oct 2022 Jiawei Wang, Yingzhao Lian, Yuning Jiang, Qing Xu, Keqiang Li, Colin N. Jones

This algorithm achieves both computation and communication efficiency, as well as trajectory data privacy, through parallel calculation.

LEMMA

Detect-Order-Construct: A Tree Construction based Approach for Hierarchical Document Structure Analysis

1 code implementation22 Jan 2024 Jiawei Wang, Kai Hu, Zhuoyao Zhong, Lei Sun, Qiang Huo

Our end-to-end system achieves state-of-the-art performance on two large-scale document layout analysis datasets (PubLayNet and DocLayNet), a high-quality hierarchical document structure reconstruction dataset (HRDoc), and our Comp-HRDoc benchmark.

Document Layout Analysis Document Summarization +4

ArT: All-round Thinker for Unsupervised Commonsense Question-Answering

1 code implementation26 Dec 2021 Jiawei Wang, Hai Zhao

In detail, our model first focuses on key parts in the given context, and then generates highly related knowledge on such a basis in an association way like human thinking.

Question Answering

An Unsupervised Feature Learning Approach to Improve Automatic Incident Detection

no code implementations29 Oct 2013 Jimmy SJ. Ren, Wei Wang, Jiawei Wang, Stephen Liao

Sophisticated automatic incident detection (AID) technology plays a key role in contemporary transportation systems.

General Classification

Exploring The Contribution of Unlabeled Data in Financial Sentiment Analysis

no code implementations3 Aug 2013 Jimmy SJ. Ren, Wei Wang, Jiawei Wang, Stephen Shaoyi Liao

We argue that if the bias-variance trade-off is to be better balanced by a more effective feature selection method unlabeled data is very likely to boost the classification performance.

feature selection General Classification +3

Efficient Connected and Automated Driving System with Multi-agent Graph Reinforcement Learning

no code implementations6 Jul 2020 Tianyu Shi, Jiawei Wang, Yuankai Wu, Luis Miranda-Moreno, Lijun Sun

Instead of learning a reliable behavior for ego automated vehicle, we focus on how to improve the outcomes of the total transportation system by allowing each automated vehicle to learn cooperation with each other and regulate human-driven traffic flow.

Decision Making reinforcement-learning +1

NeuroDiff: Scalable Differential Verification of Neural Networks using Fine-Grained Approximation

no code implementations21 Sep 2020 Brandon Paulsen, Jingbo Wang, Jiawei Wang, Chao Wang

Unfortunately, existing methods either focus on verifying a single network or rely on loose approximations to prove the equivalence of two networks.

Cooperative Formation of Autonomous Vehicles in Mixed Traffic Flow: Beyond Platooning

no code implementations8 Sep 2020 Keqiang Li, Jiawei Wang, Yang Zheng

In mixed traffic flow consisting of AVs and human-driven vehicles (HDVs), the prevailing platooning of multiple AVs is not the only choice for cooperative formation.

Autonomous Vehicles

Reducing Bus Bunching with Asynchronous Multi-Agent Reinforcement Learning

no code implementations2 May 2021 Jiawei Wang, Lijun Sun

However, due to the significant uncertainties in passenger demand and traffic conditions, bus operation is unstable in nature and bus bunching has become a common phenomenon that undermines the reliability and efficiency of bus services.

Graph Attention Multi-agent Reinforcement Learning +2

Data-Driven Predictive Control for Connected and Autonomous Vehicles in Mixed Traffic

no code implementations19 Oct 2021 Jiawei Wang, Yang Zheng, Qing Xu, Keqiang Li

In this paper, instead of relying on a parametric car-following model, we introduce a data-driven predictive control strategy to achieve safe and optimal control for CAVs in mixed traffic.

Autonomous Vehicles

Robust Dynamic Bus Control: A Distributional Multi-agent Reinforcement Learning Approach

no code implementations2 Nov 2021 Jiawei Wang, Lijun Sun

However, the operation of a bus fleet is unstable in nature, and bus bunching has become a common phenomenon that undermines the efficiency and reliability of bus systems.

Continuous Control Meta-Learning +3

What If Sentence-hood is Hard to Define: A Case Study in Chinese Reading Comprehension

no code implementations Findings (EMNLP) 2021 Jiawei Wang, Hai Zhao, Yinggong Zhao, Libin Shen

Machine reading comprehension (MRC) is a challenging NLP task for it requires to carefully deal with all linguistic granularities from word, sentence to passage.

Chinese Reading Comprehension Machine Reading Comprehension +1

Experimental Validation of Multi-lane Formation Control for Connected and Automated Vehicles in Multiple Scenarios

no code implementations1 Dec 2021 Mengchi Cai, Qing Xu, Chunying Yang, Jianghong Dong, Chaoyi Chen, Jiawei Wang, Jianqiang Wang, Keqiang Li

Formation control methods of connected and automated vehicles have been proposed to smoothly switch the structure of vehicular formations in different scenarios.

CODE-MVP: Learning to Represent Source Code from Multiple Views with Contrastive Pre-Training

no code implementations Findings (NAACL) 2022 Xin Wang, Yasheng Wang, Yao Wan, Jiawei Wang, Pingyi Zhou, Li Li, Hao Wu, Jin Liu

Specifically, we first extract multiple code views using compiler tools, and learn the complementary information among them under a contrastive learning framework.

Contrastive Learning Defect Detection +2

Single-species population models with age structure and psychological effect in a polluted environment

no code implementations8 May 2022 Jiawei Wang, Ruiyang Zhou, Fengying Wei

The role of psychological effects makes the contact between adult and environmental toxins a functional form, while the contact between larvae and environmental toxins is linear.

TSRFormer: Table Structure Recognition with Transformers

no code implementations9 Aug 2022 WeiHong Lin, Zheng Sun, Chixiang Ma, Mingze Li, Jiawei Wang, Lei Sun, Qiang Huo

We present a new table structure recognition (TSR) approach, called TSRFormer, to robustly recognizing the structures of complex tables with geometrical distortions from various table images.

Ranked #2 on Table Recognition on PubTabNet (TEDS-Struct metric)

Image Segmentation Relation Network +2

Robust Table Structure Recognition with Dynamic Queries Enhanced Detection Transformer

no code implementations21 Mar 2023 Jiawei Wang, WeiHong Lin, Chixiang Ma, Mingze Li, Zheng Sun, Lei Sun, Qiang Huo

Unlike previous methods, we formulate table separation line prediction as a line regression problem instead of an image segmentation problem and propose a new two-stage dynamic queries enhanced DETR based separation line regression approach, named DQ-DETR, to predict separation lines from table images directly.

Image Segmentation regression +2

Towards Effective and Interpretable Human-Agent Collaboration in MOBA Games: A Communication Perspective

no code implementations23 Apr 2023 Yiming Gao, Feiyu Liu, Liang Wang, Zhenjie Lian, Weixuan Wang, Siqin Li, Xianliang Wang, Xianhan Zeng, Rundong Wang, Jiawei Wang, Qiang Fu, Wei Yang, Lanxiao Huang, Wei Liu

MOBA games, e. g., Dota2 and Honor of Kings, have been actively used as the testbed for the recent AI research on games, and various AI systems have been developed at the human level so far.

Information Flow Topology in Mixed Traffic: A Comparative Study between "Looking Ahead" and "Looking Behind"

no code implementations4 Sep 2023 Shuai Li, Haotian Zheng, Jiawei Wang, Chaoyi Chen, Qing Xu, Jianqiang Wang, Keqiang Li

In mixed traffic where human-driven vehicles (HDVs) also exist, existing research mostly focuses on "looking ahead" (i. e., the CAVs receive information from preceding vehicles) strategies for CAVs, while recent work reveals that "looking behind" (i. e., the CAVs receive information from their rear vehicles) strategies might provide more possibilities for CAV longitudinal control.

Learning Optimal Robust Control of Connected Vehicles in Mixed Traffic Flow

no code implementations18 Sep 2023 Jie Li, Jiawei Wang, Shengbo Eben Li, Keqiang Li

Connected and automated vehicles (CAVs) technologies promise to attenuate undesired traffic disturbances.

ContextSeg: Sketch Semantic Segmentation by Querying the Context with Attention

no code implementations28 Nov 2023 Jiawei Wang, Changjian Li

Sketch semantic segmentation is a well-explored and pivotal problem in computer vision involving the assignment of pre-defined part labels to individual strokes.

Semantic Segmentation

Dynamic Relation Transformer for Contextual Text Block Detection

no code implementations17 Jan 2024 Jiawei Wang, Shunchi Zhang, Kai Hu, Chixiang Ma, Zhuoyao Zhong, Lei Sun, Qiang Huo

Contextual Text Block Detection (CTBD) is the task of identifying coherent text blocks within the complexity of natural scenes.

Graph Generation Relation +1

UniVIE: A Unified Label Space Approach to Visual Information Extraction from Form-like Documents

no code implementations17 Jan 2024 Kai Hu, Jiawei Wang, WeiHong Lin, Zhuoyao Zhong, Lei Sun, Qiang Huo

This unified approach allows for the definition of various relation types and effectively tackles hierarchical relationships in form-like documents.

Key Information Extraction Relation

Boximator: Generating Rich and Controllable Motions for Video Synthesis

no code implementations2 Feb 2024 Jiawei Wang, Yuchen Zhang, Jiaxin Zou, Yan Zeng, Guoqiang Wei, Liping Yuan, Hang Li

Its robust motion controllability is validated by drastic increases in the bounding box alignment metric.

Large Language Models as Urban Residents: An LLM Agent Framework for Personal Mobility Generation

no code implementations22 Feb 2024 Jiawei Wang, Renhe Jiang, Chuang Yang, Zengqing Wu, Makoto Onizuka, Ryosuke Shibasaki, Chuan Xiao

The key technical contribution is a novel LLM agent framework that accounts for individual activity patterns and motivations, including a self-consistency approach to align LLMs with real-world activity data and a retrieval-augmented strategy for interpretable activity generation.

Retrieval

EM-TTS: Efficiently Trained Low-Resource Mongolian Lightweight Text-to-Speech

no code implementations13 Mar 2024 ZiQi Liang, Haoxiang Shi, Jiawei Wang, Keda Lu

Recurrent neural networks have become a standard modeling technique for sequential data in TTS systems and are widely used.

Speech Synthesis

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