Search Results for author: Hongwei Wang

Found 56 papers, 22 papers with code

EventKE: Event-Enhanced Knowledge Graph Embedding

no code implementations Findings (EMNLP) 2021 Zixuan Zhang, Hongwei Wang, Han Zhao, Hanghang Tong, Heng Ji

Relations in most of the traditional knowledge graphs (KGs) only reflect static and factual connections, but fail to represent the dynamic activities and state changes about entities.

Knowledge Graph Embedding Knowledge Graphs +1

Near/Far-Field Channel Estimation For Terahertz Systems With ELAAs: A Block-Sparse-Aware Approach

no code implementations8 Apr 2024 Hongwei Wang, Jun Fang, Huiping Duan, Hongbin Li

In this paper, we consider the problem of hybrid near/far-field channel estimation by taking spherical wave propagation into account.

valid

Do We Really Need a Complex Agent System? Distill Embodied Agent into a Single Model

no code implementations6 Apr 2024 Zhonghan Zhao, Ke Ma, Wenhao Chai, Xuan Wang, Kewei Chen, Dongxu Guo, Yanting Zhang, Hongwei Wang, Gaoang Wang

After distillation, embodied agents can complete complex, open-ended tasks without additional expert guidance, utilizing the performance and knowledge of a versatile MLM.

Knowledge Distillation

Conceptual and Unbiased Reasoning in Language Models

no code implementations30 Mar 2024 Ben Zhou, Hongming Zhang, Sihao Chen, Dian Yu, Hongwei Wang, Baolin Peng, Dan Roth, Dong Yu

Conceptual reasoning, the ability to reason in abstract and high-level perspectives, is key to generalization in human cognition.

Decision Making

MedM2G: Unifying Medical Multi-Modal Generation via Cross-Guided Diffusion with Visual Invariant

no code implementations7 Mar 2024 Chenlu Zhan, Yu Lin, Gaoang Wang, Hongwei Wang, Jian Wu

Medical generative models, acknowledged for their high-quality sample generation ability, have accelerated the fast growth of medical applications.

Clinical Knowledge

API Is Enough: Conformal Prediction for Large Language Models Without Logit-Access

no code implementations2 Mar 2024 Jiayuan Su, Jing Luo, Hongwei Wang, Lu Cheng

This study aims to address the pervasive challenge of quantifying uncertainty in large language models (LLMs) without logit-access.

Conformal Prediction Open-Ended Question Answering +2

UniDCP: Unifying Multiple Medical Vision-language Tasks via Dynamic Cross-modal Learnable Prompts

no code implementations18 Dec 2023 Chenlu Zhan, Yufei Zhang, Yu Lin, Gaoang Wang, Hongwei Wang

Medical vision-language pre-training (Med-VLP) models have recently accelerated the fast-growing medical diagnostics application.

Language Modelling

Dense X Retrieval: What Retrieval Granularity Should We Use?

1 code implementation11 Dec 2023 Tong Chen, Hongwei Wang, Sihao Chen, Wenhao Yu, Kaixin Ma, Xinran Zhao, Hongming Zhang, Dong Yu

We discover that the retrieval unit choice significantly impacts the performance of both retrieval and downstream tasks.

Retrieval Sentence +1

Self-Improving for Zero-Shot Named Entity Recognition with Large Language Models

1 code implementation15 Nov 2023 Tingyu Xie, Qi Li, Yan Zhang, Zuozhu Liu, Hongwei Wang

Exploring the application of powerful large language models (LLMs) on the named entity recognition (NER) task has drawn much attention recently.

In-Context Learning named-entity-recognition +3

Chain-of-Note: Enhancing Robustness in Retrieval-Augmented Language Models

no code implementations15 Nov 2023 Wenhao Yu, Hongming Zhang, Xiaoman Pan, Kaixin Ma, Hongwei Wang, Dong Yu

In response to these challenges, we introduces Chain-of-Noting (CoN), a novel approach aimed at improving the robustness of RALMs in facing noisy, irrelevant documents and in handling unknown scenarios.

Hallucination Retrieval

Sub-Sentence Encoder: Contrastive Learning of Propositional Semantic Representations

1 code implementation7 Nov 2023 Sihao Chen, Hongming Zhang, Tong Chen, Ben Zhou, Wenhao Yu, Dian Yu, Baolin Peng, Hongwei Wang, Dan Roth, Dong Yu

We introduce sub-sentence encoder, a contrastively-learned contextual embedding model for fine-grained semantic representation of text.

Contrastive Learning Semantic Similarity +3

On the Dimensionality of Sentence Embeddings

no code implementations23 Oct 2023 Hongwei Wang, Hongming Zhang, Dong Yu

Therefore, we propose a two-step training method for sentence representation learning models, wherein the encoder and the pooler are optimized separately to mitigate the overall performance loss in low-dimension scenarios.

Sentence Sentence Classification +3

Weighted Joint Maximum Mean Discrepancy Enabled Multi-Source-Multi-Target Unsupervised Domain Adaptation Fault Diagnosis

no code implementations20 Oct 2023 Zixuan Wang, Haoran Tang, Haibo Wang, Bo Qin, Mark D. Butala, Weiming Shen, Hongwei Wang

Despite the remarkable results that can be achieved by data-driven intelligent fault diagnosis techniques, they presuppose the same distribution of training and test data as well as sufficient labeled data.

Unsupervised Domain Adaptation

Empirical Study of Zero-Shot NER with ChatGPT

1 code implementation16 Oct 2023 Tingyu Xie, Qi Li, Jian Zhang, Yan Zhang, Zuozhu Liu, Hongwei Wang

Large language models (LLMs) exhibited powerful capability in various natural language processing tasks.

Arithmetic Reasoning named-entity-recognition +3

LASER: LLM Agent with State-Space Exploration for Web Navigation

1 code implementation15 Sep 2023 Kaixin Ma, Hongming Zhang, Hongwei Wang, Xiaoman Pan, Wenhao Yu, Dong Yu

We evaluate our proposed LLM Agent with State-Space ExploRation (LASER) on both the WebShop task and amazon. com.

Decision Making

Unsupervised Multi-document Summarization with Holistic Inference

no code implementations8 Sep 2023 Haopeng Zhang, Sangwoo Cho, Kaiqiang Song, Xiaoyang Wang, Hongwei Wang, Jiawei Zhang, Dong Yu

SRI balances the importance and diversity of a subset of sentences from the source documents and can be calculated in unsupervised and adaptive manners.

Document Summarization Extractive Summarization +1

Fragment and Integrate Network (FIN): A Novel Spatial-Temporal Modeling Based on Long Sequential Behavior for Online Food Ordering Click-Through Rate Prediction

no code implementations30 Aug 2023 Jun Li, Jingjian Wang, Hongwei Wang, Xing Deng, Jielong Chen, Bing Cao, Zekun Wang, Guanjie Xu, Ge Zhang, Feng Shi, Hualei Liu

(ii) Integrate Network (IN) builds a new integrated sequence by utilizing spatial-temporal interaction on MSS and captures the comprehensive spatial-temporal representation by modeling the integrated sequence with a complicated attention.

Click-Through Rate Prediction Recommendation Systems

Internal Contrastive Learning for Generalized Out-of-distribution Fault Diagnosis (GOOFD) Framework

no code implementations27 Jun 2023 Xingyue Wang, Hanrong Zhang, Ke Ma, Shuting Tao, Peng Peng, Hongwei Wang

Additionally, a unified fault diagnosis method based on internal contrastive learning is put forward to underpin the proposed generalized framework.

Contrastive Learning Fault Detection

Hard Sample Mining Enabled Supervised Contrastive Feature Learning for Wind Turbine Pitch System Fault Diagnosis

no code implementations26 Jun 2023 Zixuan Wang, Bo Qin, Mengxuan Li, Chenlu Zhan, Mark D. Butala, Peng Peng, Hongwei Wang

The proposed method employs cosine similarity to identify hard samples and subsequently, leverages supervised contrastive learning to learn more discriminative representations by constructing hard sample pairs.

Contrastive Learning Representation Learning

Open-Domain Event Graph Induction for Mitigating Framing Bias

no code implementations22 May 2023 Siyi Liu, Hongming Zhang, Hongwei Wang, Kaiqiang Song, Dan Roth, Dong Yu

However, none of the existing methods have explicitly addressed the issue of framing bias that is inherent in news articles.

Deep Learning Methods for Small Molecule Drug Discovery: A Survey

no code implementations1 Mar 2023 Wenhao Hu, Yingying Liu, Xuanyu Chen, Wenhao Chai, Hangyue Chen, Hongwei Wang, Gaoang Wang

With the development of computer-assisted techniques, research communities including biochemistry and deep learning have been devoted into the drug discovery field for over a decade.

Drug Discovery Molecular Property Prediction +2

An Order-Invariant and Interpretable Hierarchical Dilated Convolution Neural Network for Chemical Fault Detection and Diagnosis

no code implementations13 Feb 2023 Mengxuan Li, Peng Peng, Min Wang, Hongwei Wang

The novelty of HDLCNN lies in its capability of processing tabular data with features of arbitrary order without seeking the optimal order, due to the ability to agglomerate correlated features of feature clustering and the large receptive field of dilated convolution.

Chemical Process Clustering +1

SCCAM: Supervised Contrastive Convolutional Attention Mechanism for Ante-hoc Interpretable Fault Diagnosis with Limited Fault Samples

no code implementations3 Feb 2023 Mengxuan Li, Peng Peng, Jingxin Zhang, Hongwei Wang, Weiming Shen

The comprehensive results demonstrate that the proposed SCCAM method can achieve better performance compared with the state-of-the-art methods on fault classification and root cause analysis.

Minimum Error Entropy Rauch-Tung-Striebel Smoother

no code implementations14 Jan 2023 Jiacheng He, Hongwei Wang, Gang Wang, Shan Zhong, Bei Peng

Outliers and impulsive disturbances often cause heavy-tailed distributions in practical applications, and these will degrade the performance of Gaussian approximation smoothing algorithms.

UnICLAM:Contrastive Representation Learning with Adversarial Masking for Unified and Interpretable Medical Vision Question Answering

no code implementations21 Dec 2022 Chenlu Zhan, Peng Peng, Hongsen Wang, Tao Chen, Hongwei Wang

Moreover, for grasping the unified semantic representation, we extend the adversarial masking data augmentation to the contrastive representation learning of vision and text in a unified manner.

Data Augmentation Decision Making +4

Supervised Contrastive Learning with Tree-Structured Parzen Estimator Bayesian Optimization for Imbalanced Tabular Data

no code implementations19 Oct 2022 Shuting Tao, Peng Peng, Qi Li, Hongwei Wang

To solve this problem, we propose a Supervised Contrastive Learning (SCL) method with Tree-structured Parzen Estimator (TPE) technique for imbalanced tabular datasets.

Bayesian Optimization Contrastive Learning +1

Compressed CPD-Based Channel Estimation and Joint Beamforming for RIS-Assisted Millimeter Wave Communications

no code implementations4 Oct 2022 Xi Zheng, Jun Fang, Hongwei Wang, Peilan Wang, Hongbin Li

Also, by utilizing the singular value decomposition-like structure of the effective channel, this paper develops a joint active and passive beamforming method based on the estimated cascade channels.

Schema-Guided Event Graph Completion

no code implementations6 Jun 2022 Hongwei Wang, Zixuan Zhang, Sha Li, Jiawei Han, Yizhou Sun, Hanghang Tong, Joseph P. Olive, Heng Ji

Existing link prediction or graph completion methods have difficulty dealing with event graphs because they are usually designed for a single large graph such as a social network or a knowledge graph, rather than multiple small dynamic event graphs.

Link Prediction

Spatial Channel Covariance Estimation and Two-Timescale Beamforming for IRS-Assisted Millimeter Wave Systems

no code implementations17 Apr 2022 Hongwei Wang, Jun Fang, Huiping Duan, Hongbin Li

We consider the problem of spatial channel covariance matrix (CCM) estimation for intelligent reflecting surface (IRS)-assisted millimeter wave (mmWave) communication systems.

Multi-Agent Imitation Learning with Copulas

no code implementations10 Jul 2021 Hongwei Wang, Lantao Yu, Zhangjie Cao, Stefano Ermon

Multi-agent imitation learning aims to train multiple agents to perform tasks from demonstrations by learning a mapping between observations and actions, which is essential for understanding physical, social, and team-play systems.

Imitation Learning

RelationTrack: Relation-aware Multiple Object Tracking with Decoupled Representation

no code implementations10 May 2021 En Yu, Zhuoling Li, Shoudong Han, Hongwei Wang

Existing online multiple object tracking (MOT) algorithms often consist of two subtasks, detection and re-identification (ReID).

Multiple Object Tracking Object +1

MAT: Motion-Aware Multi-Object Tracking

no code implementations10 Sep 2020 Shoudong Han, Piao Huang, Hongwei Wang, En Yu, Donghaisheng Liu, Xiaofeng Pan, Jun Zhao

Modern multi-object tracking (MOT) systems usually model the trajectories by associating per-frame detections.

Multi-Object Tracking Object

Refinements in Motion and Appearance for Online Multi-Object Tracking

no code implementations16 Mar 2020 Piao Huang, Shoudong Han, Jun Zhao, Donghaisheng Liu, Hongwei Wang, En Yu, Alex ChiChung Kot

Modern multi-object tracking (MOT) system usually involves separated modules, such as motion model for location and appearance model for data association.

Blocking Multi-Object Tracking +1

Unifying Graph Convolutional Neural Networks and Label Propagation

2 code implementations17 Feb 2020 Hongwei Wang, Jure Leskovec

Both solve the task of node classification but LPA propagates node label information across the edges of the graph, while GCN propagates and transforms node feature information.

Classification General Classification +1

Relational Message Passing for Knowledge Graph Completion

4 code implementations17 Feb 2020 Hongwei Wang, Hongyu Ren, Jure Leskovec

Specifically, two kinds of neighborhood topology are modeled for a given entity pair under the relational message passing framework: (1) Relational context, which captures the relation types of edges adjacent to the given entity pair; (2) Relational paths, which characterize the relative position between the given two entities in the knowledge graph.

Knowledge Graph Completion Relation

A SPIKING SEQUENTIAL MODEL: RECURRENT LEAKY INTEGRATE-AND-FIRE

no code implementations25 Sep 2019 Daiheng Gao, Hongwei Wang, Hehui Zhang, Meng Wang, Zhenzhi Wu

Stemming from neuroscience, Spiking neural networks (SNNs), a brain-inspired neural network that is a versatile solution to fault-tolerant and energy efficient information processing pertains to the ”event-driven” characteristic as the analogy of the behavior of biological neurons.

Text Summarization Video Understanding

Knowledge Graph Convolutional Networks for Recommender Systems

8 code implementations18 Mar 2019 Hongwei Wang, Miao Zhao, Xing Xie, Wenjie Li, Minyi Guo

To alleviate sparsity and cold start problem of collaborative filtering based recommender systems, researchers and engineers usually collect attributes of users and items, and design delicate algorithms to exploit these additional information.

Click-Through Rate Prediction Collaborative Filtering +3

Lipschitz Generative Adversarial Nets

1 code implementation15 Feb 2019 Zhiming Zhou, Jiadong Liang, Yuxuan Song, Lantao Yu, Hongwei Wang, Wei-Nan Zhang, Yong Yu, Zhihua Zhang

By contrast, Wasserstein GAN (WGAN), where the discriminative function is restricted to 1-Lipschitz, does not suffer from such a gradient uninformativeness problem.

Informativeness

Multi-Task Feature Learning for Knowledge Graph Enhanced Recommendation

3 code implementations23 Jan 2019 Hongwei Wang, Fuzheng Zhang, Miao Zhao, Wenjie Li, Xing Xie, Minyi Guo

Collaborative filtering often suffers from sparsity and cold start problems in real recommendation scenarios, therefore, researchers and engineers usually use side information to address the issues and improve the performance of recommender systems.

Collaborative Filtering Knowledge Graph Embedding +4

Visual-Texual Emotion Analysis with Deep Coupled Video and Danmu Neural Networks

no code implementations19 Nov 2018 Chenchen Li, Jialin Wang, Hongwei Wang, Miao Zhao, Wenjie Li, Xiaotie Deng

To enhance the emotion discriminativeness of words in textual feature extraction, we propose Emotional Word Embedding (EWE) to learn text representations by jointly considering their semantics and emotions.

Emotion Recognition MULTI-VIEW LEARNING

Modeling Local Dependence in Natural Language with Multi-channel Recurrent Neural Networks

no code implementations13 Nov 2018 Chang Xu, Weiran Huang, Hongwei Wang, Gang Wang, Tie-Yan Liu

In this paper, we propose an improved variant of RNN, Multi-Channel RNN (MC-RNN), to dynamically capture and leverage local semantic structure information.

Abstractive Text Summarization Language Modelling +2

Understanding the Effectiveness of Lipschitz-Continuity in Generative Adversarial Nets

1 code implementation2 Jul 2018 Zhiming Zhou, Yuxuan Song, Lantao Yu, Hongwei Wang, Jiadong Liang, Wei-Nan Zhang, Zhihua Zhang, Yong Yu

In this paper, we investigate the underlying factor that leads to failure and success in the training of GANs.

valid

RippleNet: Propagating User Preferences on the Knowledge Graph for Recommender Systems

9 code implementations9 Mar 2018 Hongwei Wang, Fuzheng Zhang, Jialin Wang, Miao Zhao, Wenjie Li, Xing Xie, Minyi Guo

To address the sparsity and cold start problem of collaborative filtering, researchers usually make use of side information, such as social networks or item attributes, to improve recommendation performance.

Click-Through Rate Prediction Collaborative Filtering +2

DKN: Deep Knowledge-Aware Network for News Recommendation

4 code implementations25 Jan 2018 Hongwei Wang, Fuzheng Zhang, Xing Xie, Minyi Guo

To solve the above problems, in this paper, we propose a deep knowledge-aware network (DKN) that incorporates knowledge graph representation into news recommendation.

Click-Through Rate Prediction Common Sense Reasoning +2

Joint Topic-Semantic-aware Social Recommendation for Online Voting

1 code implementation3 Dec 2017 Hongwei Wang, Jia Wang, Miao Zhao, Jiannong Cao, Minyi Guo

JTS-MF model calculates similarity among users and votings by combining their TEWE representation and structural information of social networks, and preserves this topic-semantic-social similarity during matrix factorization.

SHINE: Signed Heterogeneous Information Network Embedding for Sentiment Link Prediction

1 code implementation3 Dec 2017 Hongwei Wang, Fuzheng Zhang, Min Hou, Xing Xie, Minyi Guo, Qi Liu

First, due to the lack of explicit sentiment links in mainstream social networks, we establish a labeled heterogeneous sentiment dataset which consists of users' sentiment relation, social relation and profile knowledge by entity-level sentiment extraction method.

Link Prediction Network Embedding +2

Limits on Axion Couplings from the first 80-day data of PandaX-II Experiment

no code implementations25 Jul 2017 Changbo Fu, Xiaopeng Zhou, Xun Chen, Yunhua Chen, Xiangyi Cui, Deqing Fang, Karl Giboni, Franco Giuliani, Ke Han, Xingtao Huang, Xiangdong Ji, Yonglin Ju, Siao Lei, Shaoli Li, Huaxuan Liu, Jianglai Liu, Yugang Ma, Yajun Mao, Xiangxiang Ren, Andi Tan, Hongwei Wang, Jimin Wang, Meng Wang, Qiuhong Wang, Siguang Wang, Xuming Wang, Zhou Wang, Shiyong Wu, Mengjiao Xiao, Pengwei Xie, Binbin Yan, Yong Yang, Jianfeng Yue, Hongguang Zhang, Tao Zhang, Li Zhao, Ning Zhou

We report new searches for the solar axions and galactic axion-like dark matter particles, using the first low-background data from PandaX-II experiment at China Jinping Underground Laboratory, corresponding to a total exposure of about $2. 7\times 10^4$ kg$\cdot$day.

High Energy Physics - Experiment Solar and Stellar Astrophysics High Energy Physics - Phenomenology

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