no code implementations • ACL (ECNLP) 2021 • Runze Liang, Ryuichi Takanobu, Feng-Lin Li, Ji Zhang, Haiqing Chen, Minlie Huang
To this end, we formalize the turn-level satisfaction estimation as a reinforcement learning problem, in which the model can be optimized with only session-level satisfaction labels.
no code implementations • 27 Jun 2023 • Yuhao Cui, Xiongwei Wang, Zhongzhou Zhao, Wei Zhou, Haiqing Chen
However, these high-level semantic probabilities are often inaccurate and unsmooth at the phoneme level, leading to bias in learning.
no code implementations • 18 Apr 2023 • Haolan Zhan, Xuming Lin, Shaobo Cui, Zhongzhou Zhao, Wei Zhou, Haiqing Chen
Specifically, tabular data and persona information are firstly represented as latent variables separately.
no code implementations • 29 Jun 2022 • Chengqiang Lu, Jianwei Zhang, Yunfei Chu, Zhengyu Chen, Jingren Zhou, Fei Wu, Haiqing Chen, Hongxia Yang
In the past few years, transformer-based pre-trained language models have achieved astounding success in both industry and academia.
no code implementations • 18 Aug 2021 • Xuming Lin, Shaobo Cui, Zhongzhou Zhao, Wei Zhou, Ji Zhang, Haiqing Chen
With these two synergic representations, we then regroup these phrases into a fine-grained plan, based on which we generate the final long text.
no code implementations • 17 Aug 2021 • Shaobo Cui, Xintong Bao, Xuming Lin, Zhongzhou Zhao, Ji Zhang, Wei Zhou, Haiqing Chen
Each one-to-one mapping is associated with a conditional generation pattern and is modeled with an expert in SPMoE.
no code implementations • ACL 2021 • Qianglong Chen, Feng Ji, Xiangji Zeng, Feng-Lin Li, Ji Zhang, Haiqing Chen, Yin Zhang
In order to better understand the reason behind model behaviors (i. e., making predictions), most recent works have exploited generative models to provide complementary explanations.
no code implementations • NAACL 2021 • Shuangyong Song, Chao Wang, Haiqing Chen, Huan Chen
E-commerce has grown substantially over the last several years, and chatbots for intelligent customer service are concurrently drawing attention.
no code implementations • 4 Mar 2021 • Shuangyong Song, Kexin Wang, Chao Wang, Haiqing Chen, Huan Chen
In response generation task, proper sentimental expressions can obviously improve the human-like level of the responses.
no code implementations • 24 Feb 2021 • Shaobo Cui, Xintong Bao, Xinxing Zu, Yangyang Guo, Zhongzhou Zhao, Ji Zhang, Haiqing Chen
This pipeline approach, however, is undesired in mining the most appropriate QA pairs from documents since it ignores the connection between question generation and answer extraction, which may lead to incompatible QA pair generation, i. e., the selected answer span is inappropriate for question generation.
no code implementations • COLING 2020 • Qianglong Chen, Feng Ji, Haiqing Chen, Yin Zhang
More concretely, we first introduce a novel graph-based iterative knowledge retrieval module, which iteratively retrieves concepts and entities related to the given question and its choices from multiple knowledge sources.
no code implementations • 24 Sep 2020 • Feng-Lin Li, Hehong Chen, Guohai Xu, Tian Qiu, Feng Ji, Ji Zhang, Haiqing Chen
Pre-sales customer service is of importance to E-commerce platforms as it contributes to optimizing customers' buying process.
no code implementations • 27 May 2020 • Zehao Lin, Shaobo Cui, Guodun Li, Xiaoming Kang, Feng Ji, FengLin Li, Zhongzhou Zhao, Haiqing Chen, Yin Zhang
More specifically, we take advantage of a decision model to help the dialogue system decide whether to wait or answer.
no code implementations • 21 May 2020 • Shuke Peng, Feng Ji, Zehao Lin, Shaobo Cui, Haiqing Chen, Yin Zhang
How to build a high-quality multi-domain dialogue system is a challenging work due to its complicated and entangled dialogue state space among each domain, which seriously limits the quality of dialogue policy, and further affects the generated response.
no code implementations • 13 Apr 2020 • Shuangyong Song, Chao Wang, Qianqian Xie, Xinxing Zu, Huan Chen, Haiqing Chen
In this paper, we propose the conversational query rewriting model - MLR, which is a Multi-task model on sequence Labeling and query Rewriting.
no code implementations • 22 Feb 2020 • Zehao Lin, Shaobo Cui, Guodun Li, Xiaoming Kang, Feng Ji, FengLin Li, Zhongzhou Zhao, Haiqing Chen, Yin Zhang
And the arbitrator decides whether to wait or to make a response to the user directly.
1 code implementation • 3 Feb 2020 • Liu Yang, Minghui Qiu, Chen Qu, Cen Chen, Jiafeng Guo, Yongfeng Zhang, W. Bruce Croft, Haiqing Chen
We also perform case studies and analysis of learned user intent and its impact on response ranking in information-seeking conversations to provide interpretation of results.
1 code implementation • COLING 2020 • Wenpeng Hu, Mengyu Wang, Bing Liu, Feng Ji, Haiqing Chen, Dongyan Zhao, Jinwen Ma, Rui Yan
The key idea of the proposed approach is to use a Forward Transformation to transform dense representations to sparse representations.
1 code implementation • 7 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.
no code implementations • IJCNLP 2019 • Zehao Lin, Xinjing Huang, Feng Ji, Haiqing Chen, Ying Zhang
How to incorporate external knowledge into a neural dialogue model is critically important for dialogue systems to behave like real humans.
no code implementations • 25 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.
no code implementations • 20 Aug 2019 • Shuke Peng, Xinjing Huang, Zehao Lin, Feng Ji, Haiqing Chen, Yin Zhang
Dialogue systems dealing with multi-domain tasks are highly required.
3 code implementations • ACL 2019 • Runqi Yang, Jianhai Zhang, Xing Gao, Feng Ji, Haiqing Chen
In this paper, we present a fast and strong neural approach for general purpose text matching applications.
Ranked #5 on Natural Language Inference on SciTail
1 code implementation • 27 Apr 2019 • Shiqian Chen, Chenliang Li, Feng Ji, Wei Zhou, Haiqing Chen
Then, we devise a mechanism to identify the relevant information from the noise-prone review snippets and incorporate this information to guide the answer generation.
no code implementations • 30 Dec 2018 • Chen Qu, Feng Ji, Minghui Qiu, Liu Yang, Zhiyu Min, Haiqing Chen, Jun Huang, W. Bruce Croft
Specifically, the data selector "acts" on the source domain data to find a subset for optimization of the TL model, and the performance of the TL model can provide "rewards" in turn to update the selector.
no code implementations • 28 Nov 2018 • Ming Yan, Jiangnan Xia, Chen Wu, Bin Bi, Zhongzhou Zhao, Ji Zhang, Luo Si, Rui Wang, Wei Wang, Haiqing Chen
To address this problem, we develop a novel deep cascade learning model, which progressively evolves from the document-level and paragraph-level ranking of candidate texts to more precise answer extraction with machine reading comprehension.
Ranked #2 on Question Answering on MS MARCO
1 code implementation • EMNLP 2018 • Chunqi Wang, Ji Zhang, Haiqing Chen
Existing approaches to neural machine translation are typically autoregressive models.
1 code implementation • ACL 2018 • Chenliang Li, Wei Zhou, Feng Ji, Yu Duan, Haiqing Chen
In the era of big data, focused analysis for diverse topics with a short response time becomes an urgent demand.
no code implementations • ACL 2018 • Minghui Qiu, Liu Yang, Feng Ji, Weipeng Zhao, Wei Zhou, Jun Huang, Haiqing Chen, W. Bruce Croft, Wei. Lin
Building multi-turn information-seeking conversation systems is an important and challenging research topic.
1 code implementation • 1 May 2018 • Liu Yang, Minghui Qiu, Chen Qu, Jiafeng Guo, Yongfeng Zhang, W. Bruce Croft, Jun Huang, Haiqing Chen
Our models and research findings provide new insights on how to utilize external knowledge with deep neural models for response selection and have implications for the design of the next generation of information-seeking conversation systems.
no code implementations • 1 May 2018 • Zheng Zhang, Minlie Huang, Zhongzhou Zhao, Feng Ji, Haiqing Chen, Xiaoyan Zhu
Dialogue management (DM) decides the next action of a dialogue system according to the current dialogue state, and thus plays a central role in task-oriented dialogue systems.
no code implementations • 12 Jan 2018 • Feng-Lin Li, Minghui Qiu, Haiqing Chen, Xiongwei Wang, Xing Gao, Jun Huang, Juwei Ren, Zhongzhou Zhao, Weipeng Zhao, Lei Wang, Guwei Jin, Wei Chu
We present AliMe Assist, an intelligent assistant designed for creating an innovative online shopping experience in E-commerce.
1 code implementation • 23 Nov 2017 • Jianfei Yu, Minghui Qiu, Jing Jiang, Jun Huang, Shuangyong Song, Wei Chu, Haiqing Chen
In this paper, we study transfer learning for the PI and NLI problems, aiming to propose a general framework, which can effectively and efficiently adapt the shared knowledge learned from a resource-rich source domain to a resource- poor target domain.
no code implementations • ACL 2017 • Minghui Qiu, Feng-Lin Li, Siyu Wang, Xing Gao, Yan Chen, Weipeng Zhao, Haiqing Chen, Jun Huang, Wei Chu
We propose AliMe Chat, an open-domain chatbot engine that integrates the joint results of Information Retrieval (IR) and Sequence to Sequence (Seq2Seq) based generation models.