Search Results for author: Wenpeng Hu

Found 21 papers, 5 papers with code

EvEval: A Comprehensive Evaluation of Event Semantics for Large Language Models

no code implementations24 May 2023 Zhengwei Tao, Zhi Jin, Xiaoying Bai, Haiyan Zhao, Yanlin Feng, Jia Li, Wenpeng Hu

In this paper, we propose an overarching framework for event semantic processing, encompassing understanding, reasoning, and prediction, along with their fine-grained aspects.

Efficient Out-of-Distribution Detection via CVAE data Generation

no code implementations29 Sep 2021 Mengyu Wang, Yijia Shao, Haowei Lin, Wenpeng Hu, Bing Liu

Recently, contrastive loss with data augmentation and pseudo class creation has been shown to produce markedly better results for out-of-distribution (OOD) detection than previous methods.

Data Augmentation Out-of-Distribution Detection +1

HRN: A Holistic Approach to One Class Learning

1 code implementation NeurIPS 2020 Wenpeng Hu, Mengyu Wang, Qi Qin, Jinwen Ma, Bing Liu

Existing neural network based one-class learning methods mainly use various forms of auto-encoders or GAN style adversarial training to learn a latent representation of the given one class of data.

Anomaly Detection Image Classification

Using the Past Knowledge to Improve Sentiment Classification

no code implementations Findings of the Association for Computational Linguistics 2020 Qi Qin, Wenpeng Hu, Bing Liu

It proposes a new lifelong learning model (called L2PG) that can retain and selectively transfer the knowledge learned in the past to help learn the new task.

Classification Knowledge Distillation +2

Text Classification with Novelty Detection

no code implementations23 Sep 2020 Qi Qin, Wenpeng Hu, Bing Liu

In this paper, we propose a significantly more effective approach that converts the original problem to a pair-wise matching problem and then outputs how probable two instances belong to the same class.

General Classification Novelty Detection +2

Feature Projection for Improved Text Classification

no code implementations ACL 2020 Qi Qin, Wenpeng Hu, Bing Liu

In this paper, we propose a novel angle to further improve this representation learning, i. e., feature projection.

General Classification Representation Learning +4

Query-bag Matching with Mutual Coverage for Information-seeking Conversations in E-commerce

1 code implementation7 Nov 2019 Zhenxin Fu, Feng Ji, Wenpeng Hu, Wei Zhou, Dongyan Zhao, Haiqing Chen, Rui Yan

Information-seeking conversation system aims at satisfying the information needs of users through conversations.

Text Matching

Who Is Speaking to Whom? Learning to Identify Utterance Addressee in Multi-Party Conversations

no code implementations IJCNLP 2019 Ran Le, Wenpeng Hu, Mingyue Shang, Zhenjun You, Lidong Bing, Dongyan Zhao, Rui Yan

Previous research on dialogue systems generally focuses on the conversation between two participants, yet multi-party conversations which involve more than two participants within one session bring up a more complicated but realistic scenario.

Learning from Positive and Unlabeled Data with Adversarial Training

no code implementations25 Sep 2019 Wenpeng Hu, Ran Le, Bing Liu, Feng Ji, Haiqing Chen, Dongyan Zhao, Jinwen Ma, Rui Yan

Positive-unlabeled (PU) learning learns a binary classifier using only positive and unlabeled examples without labeled negative examples.

GSN: A Graph-Structured Network for Multi-Party Dialogues

1 code implementation31 May 2019 Wenpeng Hu, Zhangming Chan, Bing Liu, Dongyan Zhao, Jinwen Ma, Rui Yan

Existing neural models for dialogue response generation assume that utterances are sequentially organized.

Response Generation

Topic-Based Question Generation

no code implementations ICLR 2018 Wenpeng Hu, Bing Liu, Rui Yan, Dongyan Zhao, Jinwen Ma

In the paper, we propose a new question generation problem, which also requires the input of a target topic in addition to a piece of descriptive text.

Chatbot Descriptive +3

Neural System Combination for Machine Translation

no code implementations ACL 2017 Long Zhou, Wenpeng Hu, Jiajun Zhang, Cheng-qing Zong

Neural machine translation (NMT) becomes a new approach to machine translation and generates much more fluent results compared to statistical machine translation (SMT).

Machine Translation NMT +1

Different Contexts Lead to Different Word Embeddings

no code implementations COLING 2016 Wenpeng Hu, Jiajun Zhang, Nan Zheng

Recent work for learning word representations has applied successfully to many NLP applications, such as sentiment analysis and question answering.

Clustering Information Retrieval +3

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