no code implementations • EMNLP 2020 • Qingfu Zhu, Wei-Nan Zhang, Ting Liu, William Yang Wang
Open-domain dialogue generation suffers from the data insufficiency problem due to the vast size of potential responses.
no code implementations • ACL (dialdoc) 2021 • Jiapeng Li, Mingda Li, Longxuan Ma, Wei-Nan Zhang, Ting Liu
The task requires identifying the grounding knowledge in form of a document span for the next dialogue turn.
no code implementations • 28 Oct 2024 • Yiming Cui, Wei-Nan Zhang, Ting Liu
The attention mechanism plays an important role in the machine reading comprehension (MRC) model.
no code implementations • 28 Oct 2024 • Wei-Nan Zhang, Yiming Cui, Kaiyan Zhang, Yifa Wang, Qingfu Zhu, Lingzhi Li, Ting Liu
To address this issue, in this paper, we proposed a static and dynamic attention-based approach to model the dialogue history and then generate open domain multi turn dialogue responses.
no code implementations • 26 Oct 2024 • Haoyu Song, Wei-Nan Zhang, Kaiyan Zhang, Ting Liu
To this end, we propose a novel stack-propagation framework for learning a generation and understanding pipeline. Specifically, the framework stacks a Transformer encoder and two Transformer decoders, where the first decoder models response generation and the second serves as a regularizer and jointly models response generation and consistency understanding.
no code implementations • 21 Oct 2024 • Longxuan Ma, Jiapeng Li, Mingda Li, Wei-Nan Zhang, Ting Liu
The framework consists of two modules: the Policy planner leverages policy-aware dialogue representation to select knowledge and predict the policy of the response; the generator uses policy/knowledge-aware dialogue representation for response generation.
1 code implementation • 23 Oct 2023 • Yuanxing Liu, Wei-Nan Zhang, Yifan Chen, Yuchi Zhang, Haopeng Bai, Fan Feng, Hengbin Cui, Yongbin Li, Wanxiang Che
This paper investigates the effectiveness of combining LLM and CRS in E-commerce pre-sales dialogues, proposing two collaboration methods: CRS assisting LLM and LLM assisting CRS.
1 code implementation • 8 Oct 2023 • Yushan Qian, Wei-Nan Zhang, Ting Liu
Empathetic dialogue is an indispensable part of building harmonious social relationships and contributes to the development of a helpful AI.
no code implementations • ACL 2022 • Haoyu Song, Li Dong, Wei-Nan Zhang, Ting Liu, Furu Wei
We first evaluate CLIP's zero-shot performance on a typical visual question answering task and demonstrate a zero-shot cross-modality transfer capability of CLIP on the visual entailment task.
1 code implementation • 26 Aug 2021 • Yiming Cui, Wei-Nan Zhang, Wanxiang Che, Ting Liu, Zhigang Chen, Shijin Wang
Achieving human-level performance on some of the Machine Reading Comprehension (MRC) datasets is no longer challenging with the help of powerful Pre-trained Language Models (PLMs).
no code implementations • ACL 2021 • Qingfu Zhu, Wei-Nan Zhang, Ting Liu, William Yang Wang
Generating open-domain conversational responses in the desired style usually suffers from the lack of parallel data in the style.
1 code implementation • ACL 2021 • Haoyu Song, Yan Wang, Kaiyan Zhang, Wei-Nan Zhang, Ting Liu
Maintaining consistent personas is essential for dialogue agents.
no code implementations • Findings of the Association for Computational Linguistics 2020 • Longxuan Ma, Wei-Nan Zhang, Runxin Sun, Ting Liu
Unstructured documents serving as external knowledge of the dialogues help to generate more informative responses.
1 code implementation • EMNLP 2020 • Haoyu Song, Yan Wang, Wei-Nan Zhang, Zhengyu Zhao, Ting Liu, Xiaojiang Liu
Maintaining a consistent attribute profile is crucial for dialogue agents to naturally converse with humans.
no code implementations • 17 Sep 2020 • Chang Liu, Huichu Zhang, Wei-Nan Zhang, Guanjie Zheng, Yong Yu
The heavy traffic congestion problem has always been a concern for modern cities.
3 code implementations • 13 Sep 2020 • Yang Yang, Jian Shen, Yanru Qu, Yunfei Liu, Kerong Wang, Yaoming Zhu, Wei-Nan Zhang, Yong Yu
With the rapid development in online education, knowledge tracing (KT) has become a fundamental problem which traces students' knowledge status and predicts their performance on new questions.
Ranked #7 on Knowledge Tracing on EdNet
no code implementations • 3 Sep 2020 • Zhaoqing Peng, Junqi Jin, Lan Luo, Yaodong Yang, Rui Luo, Jun Wang, Wei-Nan Zhang, Haiyang Xu, Miao Xu, Chuan Yu, Tiejian Luo, Han Li, Jian Xu, Kun Gai
To drive purchase in online advertising, it is of the advertiser's great interest to optimize the sequential advertising strategy whose performance and interpretability are both important.
2 code implementations • ACL 2021 • Lihua Qian, Hao Zhou, Yu Bao, Mingxuan Wang, Lin Qiu, Wei-Nan Zhang, Yong Yu, Lei LI
With GLM, we develop Glancing Transformer (GLAT) for machine translation.
Ranked #68 on Machine Translation on WMT2014 English-German
1 code implementation • ICML 2020 • Hang Lai, Jian Shen, Wei-Nan Zhang, Yong Yu
Model-based reinforcement learning approaches leverage a forward dynamics model to support planning and decision making, which, however, may fail catastrophically if the model is inaccurate.
1 code implementation • 1 Jul 2020 • Jiarui Jin, Jiarui Qin, Yuchen Fang, Kounianhua Du, Wei-Nan Zhang, Yong Yu, Zheng Zhang, Alexander J. Smola
To the best of our knowledge, this is the first work providing an efficient neighborhood-based interaction model in the HIN-based recommendations.
no code implementations • 18 Jun 2020 • Sijin Zhou, Xinyi Dai, Haokun Chen, Wei-Nan Zhang, Kan Ren, Ruiming Tang, Xiuqiang He, Yong Yu
Interactive recommender system (IRS) has drawn huge attention because of its flexible recommendation strategy and the consideration of optimal long-term user experiences.
2 code implementations • ACL (WebNLG, INLG) 2020 • Qipeng Guo, Zhijing Jin, Xipeng Qiu, Wei-Nan Zhang, David Wipf, Zheng Zhang
Due to the difficulty and high cost of data collection, the supervised data available in the two fields are usually on the magnitude of tens of thousands, for example, 18K in the WebNLG~2017 dataset after preprocessing, which is far fewer than the millions of data for other tasks such as machine translation.
1 code implementation • ICML 2020 • Yaodong Yang, Ying Wen, Li-Heng Chen, Jun Wang, Kun Shao, David Mguni, Wei-Nan Zhang
Though practical, current methods rely on restrictive assumptions to decompose the centralized value function across agents for execution.
1 code implementation • 28 May 2020 • Jiarui Qin, Wei-Nan Zhang, Xin Wu, Jiarui Jin, Yuchen Fang, Yong Yu
These retrieved behaviors are then fed into a deep model to make the final prediction instead of simply using the most recent ones.
1 code implementation • 30 Apr 2020 • Jiarui Jin, Yuchen Fang, Wei-Nan Zhang, Kan Ren, Guorui Zhou, Jian Xu, Yong Yu, Jun Wang, Xiaoqiang Zhu, Kun Gai
Position bias is a critical problem in information retrieval when dealing with implicit yet biased user feedback data.
no code implementations • 29 Apr 2020 • Qingfu Zhu, Wei-Nan Zhang, Ting Liu, William Yang Wang
Open-domain dialogue generation suffers from the data insufficiency problem due to the vast size of potential responses.
1 code implementation • 20 Apr 2020 • Minghuan Liu, Tairan He, Minkai Xu, Wei-Nan Zhang
We tackle a common scenario in imitation learning (IL), where agents try to recover the optimal policy from expert demonstrations without further access to the expert or environment reward signals.
no code implementations • Findings of the Association for Computational Linguistics 2020 • Dongyu Ru, Jiangtao Feng, Lin Qiu, Hao Zhou, Mingxuan Wang, Wei-Nan Zhang, Yong Yu, Lei LI
We propose adversarial uncertainty sampling in discrete space (AUSDS) to retrieve informative unlabeled samples more efficiently.
no code implementations • 17 Apr 2020 • Longxuan Ma, Wei-Nan Zhang, Mingda Li, Ting Liu
We believe that extracting unstructured document(s) information is the future trend of the DS because a great amount of human knowledge lies in these document(s).
no code implementations • ACL 2020 • Haoyu Song, Yan Wang, Wei-Nan Zhang, Xiaojiang Liu, Ting Liu
Maintaining a consistent personality in conversations is quite natural for human beings, but is still a non-trivial task for machines.
4 code implementations • 25 Mar 2020 • Bin Liu, Chenxu Zhu, Guilin Li, Wei-Nan Zhang, Jincai Lai, Ruiming Tang, Xiuqiang He, Zhenguo Li, Yong Yu
By implementing a regularized optimizer over the architecture parameters, the model can automatically identify and remove the redundant feature interactions during the training process of the model.
Ranked #31 on Click-Through Rate Prediction on Criteo
no code implementations • 14 Mar 2020 • Guansong Lu, Zhiming Zhou, Jian Shen, Cheng Chen, Wei-Nan Zhang, Yong Yu
Recent advances in large-scale optimal transport have greatly extended its application scenarios in machine learning.
1 code implementation • ICLR 2020 • Chence Shi, Minkai Xu, Zhaocheng Zhu, Wei-Nan Zhang, Ming Zhang, Jian Tang
Molecular graph generation is a fundamental problem for drug discovery and has been attracting growing attention.
Ranked #1 on Molecular Graph Generation on MOSES
1 code implementation • ICLR 2020 • Minghuan Liu, Ming Zhou, Wei-Nan Zhang, Yuzheng Zhuang, Jun Wang, Wulong Liu, Yong Yu
In this paper, we cast the multi-agent interactions modeling problem into a multi-agent imitation learning framework with explicit modeling of correlated policies by approximating opponents' policies, which can recover agents' policies that can regenerate similar interactions.
no code implementations • 19 Dec 2019 • Yiming Cui, Wanxiang Che, Wei-Nan Zhang, Ting Liu, Shijin Wang, Guoping Hu
Story Ending Prediction is a task that needs to select an appropriate ending for the given story, which requires the machine to understand the story and sometimes needs commonsense knowledge.
no code implementations • 21 Nov 2019 • Yuxuan Song, Lantao Yu, Zhangjie Cao, Zhiming Zhou, Jian Shen, Shuo Shao, Wei-Nan Zhang, Yong Yu
Domain adaptation aims to leverage the supervision signal of source domain to obtain an accurate model for target domain, where the labels are not available.
no code implementations • 14 Nov 2019 • Yiming Cui, Wei-Nan Zhang, Wanxiang Che, Ting Liu, Zhipeng Chen, Shijin Wang, Guoping Hu
Recurrent Neural Networks (RNN) are known as powerful models for handling sequential data, and especially widely utilized in various natural language processing tasks.
1 code implementation • 14 Nov 2019 • Haoyu Song, Wei-Nan Zhang, Jingwen Hu, Ting Liu
Consistency is one of the major challenges faced by dialogue agents.
1 code implementation • 10 Nov 2019 • Jiarui Qin, Kan Ren, Yuchen Fang, Wei-Nan Zhang, Yong Yu
Various sequential recommendation methods are proposed to model the dynamic user behaviors.
no code implementations • IJCNLP 2019 • Lihua Qian, Lin Qiu, Wei-Nan Zhang, Xin Jiang, Yong Yu
Paraphrasing plays an important role in various natural language processing (NLP) tasks, such as question answering, information retrieval and sentence simplification.
no code implementations • 7 Oct 2019 • Ming Zhou, Jiarui Jin, Wei-Nan Zhang, Zhiwei Qin, Yan Jiao, Chenxi Wang, Guobin Wu, Yong Yu, Jieping Ye
Improving the efficiency of dispatching orders to vehicles is a research hotspot in online ride-hailing systems.
Multi-agent Reinforcement Learning reinforcement-learning +2
no code implementations • CONLL 2019 • Wentao Ma, Yiming Cui, Nan Shao, Su He, Wei-Nan Zhang, Ting Liu, Shijin Wang, Guoping Hu
The heart of TripleNet is a novel attention mechanism named triple attention to model the relationships within the triple at four levels.
no code implementations • 10 Sep 2019 • Liheng Chen, Hongyi Guo, Yali Du, Fei Fang, Haifeng Zhang, Yaoming Zhu, Ming Zhou, Wei-Nan Zhang, Qing Wang, Yong Yu
Although existing works formulate this problem into a centralized learning with decentralized execution framework, which avoids the non-stationary problem in training, their decentralized execution paradigm limits the agents' capability to coordinate.
Multi-agent Reinforcement Learning reinforcement-learning +2
1 code implementation • 8 Sep 2019 • Haifeng Zhang, Weizhe Chen, Zeren Huang, Minne Li, Yaodong Yang, Wei-Nan Zhang, Jun Wang
Coordination is one of the essential problems in multi-agent systems.
Multiagent Systems
no code implementations • 19 Aug 2019 • Dagui Chen, Junqi Jin, Wei-Nan Zhang, Fei Pan, Lvyin Niu, Chuan Yu, Jun Wang, Han Li, Jian Xu, Kun Gai
We refer to this process as Leverage.
2 code implementations • 15 Aug 2019 • Jiacheng Yang, Mingxuan Wang, Hao Zhou, Chengqi Zhao, Yong Yu, Wei-Nan Zhang, Lei LI
Our experiments in machine translation show CTNMT gains of up to 3 BLEU score on the WMT14 English-German language pair which even surpasses the previous state-of-the-art pre-training aided NMT by 1. 4 BLEU score.
1 code implementation • 12 Aug 2019 • Yanru Qu, Ting Bai, Wei-Nan Zhang, Jian-Yun Nie, Jian Tang
This paper studies graph-based recommendation, where an interaction graph is constructed from historical records and is lever-aged to alleviate data sparsity and cold start problems.
Ranked #2 on Click-Through Rate Prediction on MovieLens 1M
1 code implementation • 29 May 2019 • Haoyu Song, Wei-Nan Zhang, Yiming Cui, Dong Wang, Ting Liu
Giving conversational context with persona information to a chatbot, how to exploit the information to generate diverse and sustainable conversations is still a non-trivial task.
no code implementations • 27 May 2019 • Jiarui Jin, Ming Zhou, Wei-Nan Zhang, Minne Li, Zilong Guo, Zhiwei Qin, Yan Jiao, Xiaocheng Tang, Chenxi Wang, Jun Wang, Guobin Wu, Jieping Ye
How to optimally dispatch orders to vehicles and how to trade off between immediate and future returns are fundamental questions for a typical ride-hailing platform.
Multiagent Systems
1 code implementation • 25 May 2019 • Yaoming Zhu, Juncheng Wan, Zhiming Zhou, Liheng Chen, Lin Qiu, Wei-Nan Zhang, Xin Jiang, Yong Yu
Knowledge base is one of the main forms to represent information in a structured way.
1 code implementation • ACL 2019 • Yunxuan Xiao, Yanru Qu, Lin Qiu, Hao Zhou, Lei LI, Wei-Nan Zhang, Yong Yu
However, many difficult questions require multiple supporting evidence from scattered text among two or more documents.
Ranked #33 on Question Answering on HotpotQA
1 code implementation • 13 May 2019 • Huichu Zhang, Siyuan Feng, Chang Liu, Yaoyao Ding, Yichen Zhu, Zihan Zhou, Wei-Nan Zhang, Yong Yu, Haiming Jin, Zhenhui Li
The most commonly used open-source traffic simulator SUMO is, however, not scalable to large road network and large traffic flow, which hinders the study of reinforcement learning on traffic scenarios.
Multi-agent Reinforcement Learning reinforcement-learning +3
4 code implementations • 11 May 2019 • Hua Wei, Nan Xu, Huichu Zhang, Guanjie Zheng, Xinshi Zang, Chacha Chen, Wei-Nan Zhang, Yanmin Zhu, Kai Xu, Zhenhui Li
To enable cooperation of traffic signals, in this paper, we propose a model, CoLight, which uses graph attentional networks to facilitate communication.
Multi-agent Reinforcement Learning Reinforcement Learning +1
2 code implementations • 7 May 2019 • Kan Ren, Jiarui Qin, Lei Zheng, Zhengyu Yang, Wei-Nan Zhang, Yong Yu
The problem is formulated as to forecast the probability distribution of market price for each ad auction.
1 code implementation • 2 May 2019 • Kan Ren, Jiarui Qin, Yuchen Fang, Wei-Nan Zhang, Lei Zheng, Weijie Bian, Guorui Zhou, Jian Xu, Yong Yu, Xiaoqiang Zhu, Kun Gai
In order to tackle these challenges, in this paper, we propose a Hierarchical Periodic Memory Network for lifelong sequential modeling with personalized memorization of sequential patterns for each user.
1 code implementation • 2 Apr 2019 • Zhiming Zhou, Jian Shen, Yuxuan Song, Wei-Nan Zhang, Yong Yu
Lipschitz continuity recently becomes popular in generative adversarial networks (GANs).
1 code implementation • 4 Mar 2019 • Zhou Fan, Rui Su, Wei-Nan Zhang, Yong Yu
In this paper we propose a hybrid architecture of actor-critic algorithms for reinforcement learning in parameterized action space, which consists of multiple parallel sub-actor networks to decompose the structured action space into simpler action spaces along with a critic network to guide the training of all sub-actor networks.
1 code implementation • 15 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.
1 code implementation • 20 Jan 2019 • Yuting Jia, Qinqin Zhang, Wei-Nan Zhang, Xinbing Wang
In this paper, we propose CommunityGAN, a novel community detection framework that jointly solves overlapping community detection and graph representation learning.
Ranked #1 on Clique Prediction on arXiv-GrQc 3-clique
no code implementations • 14 Nov 2018 • Haokun Chen, Xinyi Dai, Han Cai, Wei-Nan Zhang, Xuejian Wang, Ruiming Tang, Yuzhou Zhang, Yong Yu
Reinforcement learning (RL) has recently been introduced to interactive recommender systems (IRS) because of its nature of learning from dynamic interactions and planning for long-run performance.
no code implementations • 14 Nov 2018 • Haifeng Zhang, Zilong Guo, Han Cai, Chris Wang, Wei-Nan Zhang, Yong Yu, Wenxin Li, Jun Wang
With the rapid growth of the express industry, intelligent warehouses that employ autonomous robots for carrying parcels have been widely used to handle the vast express volume.
5 code implementations • 29 Oct 2018 • Feng Liu, Ruiming Tang, Xutao Li, Wei-Nan Zhang, Yunming Ye, Haokun Chen, Huifeng Guo, Yuzhou Zhang
The DRR framework treats recommendation as a sequential decision making procedure and adopts an "Actor-Critic" reinforcement learning scheme to model the interactions between the users and recommender systems, which can consider both the dynamic adaptation and long-term rewards.
3 code implementations • ICLR 2019 • Zhiming Zhou, Qingru Zhang, Guansong Lu, Hongwei Wang, Wei-Nan Zhang, Yong Yu
Adam is shown not being able to converge to the optimal solution in certain cases.
no code implementations • ACL 2019 • Qingfu Zhu, Lei Cui, Wei-Nan Zhang, Furu Wei, Ting Liu
Dialogue systems are usually built on either generation-based or retrieval-based approaches, yet they do not benefit from the advantages of different models.
no code implementations • 12 Sep 2018 • Liheng Chen, Yanru Qu, Zhenghui Wang, Lin Qiu, Wei-Nan Zhang, Ken Chen, Shaodian Zhang, Yong Yu
TGE-PS uses Pairs Sampling (PS) to improve the sampling strategy of RW, being able to reduce ~99% training samples while preserving competitive performance.
no code implementations • 11 Sep 2018 • Yong Chen, Ming Zhou, Ying Wen, Yaodong Yang, Yufeng Su, Wei-Nan Zhang, Dell Zhang, Jun Wang, Han Liu
Deep Q-learning has achieved a significant success in single-agent decision making tasks.
Multiagent Systems
no code implementations • 10 Sep 2018 • Weixun Wang, Junqi Jin, Jianye Hao, Chunjie Chen, Chuan Yu, Wei-Nan Zhang, Jun Wang, Xiaotian Hao, Yixi Wang, Han Li, Jian Xu, Kun Gai
In this paper, we investigate the problem of advertising with adaptive exposure: can we dynamically determine the number and positions of ads for each user visit under certain business constraints so that the platform revenue can be increased?
1 code implementation • 7 Sep 2018 • Kan Ren, Jiarui Qin, Lei Zheng, Zhengyu Yang, Wei-Nan Zhang, Lin Qiu, Yong Yu
By capturing the time dependency through modeling the conditional probability of the event for each sample, our method predicts the likelihood of the true event occurrence and estimates the survival rate over time, i. e., the probability of the non-occurrence of the event, for the censored data.
1 code implementation • 11 Aug 2018 • Kan Ren, Yuchen Fang, Wei-Nan Zhang, Shuhao Liu, Jiajun Li, Ya zhang, Yong Yu, Jun Wang
To achieve this, we utilize sequence-to-sequence prediction for user clicks, and combine both post-view and post-click attribution patterns together for the final conversion estimation.
1 code implementation • COLING 2018 • Qingyu Yin, Yu Zhang, Wei-Nan Zhang, Ting Liu, William Yang Wang
Recent neural network methods for zero pronoun resolution explore multiple models for generating representation vectors for zero pronouns and their candidate antecedents.
no code implementations • COLING 2018 • Wei-Nan Zhang, Yiming Cui, Yifa Wang, Qingfu Zhu, Lingzhi Li, Lianqiang Zhou, Ting Liu
Despite the success of existing works on single-turn conversation generation, taking the coherence in consideration, human conversing is actually a context-sensitive process.
no code implementations • 23 Jul 2018 • Ruijie Wang, Yuchen Yan, Jialu Wang, Yuting Jia, Ye Zhang, Wei-Nan Zhang, Xinbing Wang
Most existing knowledge graphs (KGs) in academic domains suffer from problems of insufficient multi-relational information, name ambiguity and improper data format for large-scale machine processing.
1 code implementation • 2 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.
8 code implementations • 1 Jul 2018 • Yanru Qu, Bohui Fang, Wei-Nan Zhang, Ruiming Tang, Minzhe Niu, Huifeng Guo, Yong Yu, Xiuqiang He
User response prediction is a crucial component for personalized information retrieval and filtering scenarios, such as recommender system and web search.
no code implementations • 10 Jun 2018 • Wei-Nan Zhang
In this tutorial, we focus on discussing the GAN techniques and the variants on discrete data fitting in various information retrieval scenarios.
1 code implementation • ACL 2018 • Qingyu Yin, Yu Zhang, Wei-Nan Zhang, Ting Liu, William Yang Wang
In this study, we show how to integrate local and global decision-making by exploiting deep reinforcement learning models.
3 code implementations • ICML 2018 • Han Cai, Jiacheng Yang, Wei-Nan Zhang, Song Han, Yong Yu
We introduce a new function-preserving transformation for efficient neural architecture search.
no code implementations • NAACL 2018 • Zhenghui Wang, Yanru Qu, Li-Heng Chen, Jian Shen, Wei-Nan Zhang, Shaodian Zhang, Yimei Gao, Gen Gu, Ken Chen, Yong Yu
We study the problem of named entity recognition (NER) from electronic medical records, which is one of the most fundamental and critical problems for medical text mining.
Medical Named Entity Recognition named-entity-recognition +3
2 code implementations • ICLR 2019 • Sidi Lu, Lantao Yu, Siyuan Feng, Yaoming Zhu, Wei-Nan Zhang, Yong Yu
In this paper, we study the generative models of sequential discrete data.
1 code implementation • 10 Apr 2018 • Lin Qiu, Hao Zhou, Yanru Qu, Wei-Nan Zhang, Suoheng Li, Shu Rong, Dongyu Ru, Lihua Qian, Kewei Tu, Yong Yu
Information Extraction (IE) refers to automatically extracting structured relation tuples from unstructured texts.
no code implementations • 20 Mar 2018 • Li He, Liang Wang, Kaipeng Liu, Bo Wu, Wei-Nan Zhang
From the advertisers' side, participating in ranking the search results by paying for the sponsored search advertisement to attract more awareness and purchase facilitates their commercial goal.
no code implementations • 15 Mar 2018 • Sidi Lu, Yaoming Zhu, Wei-Nan Zhang, Jun Wang, Yong Yu
This paper presents a systematic survey on recent development of neural text generation models.
no code implementations • 1 Mar 2018 • Kan Ren, Wei-Nan Zhang, Ke Chang, Yifei Rong, Yong Yu, Jun Wang
From the learning perspective, we show that the bidding machine can be updated smoothly with both offline periodical batch or online sequential training schemes.
no code implementations • 27 Feb 2018 • Junqi Jin, Chengru Song, Han Li, Kun Gai, Jun Wang, Wei-Nan Zhang
Real-time advertising allows advertisers to bid for each impression for a visiting user.
3 code implementations • ICML 2018 • Yaodong Yang, Rui Luo, Minne Li, Ming Zhou, Wei-Nan Zhang, Jun Wang
Existing multi-agent reinforcement learning methods are limited typically to a small number of agents.
1 code implementation • 6 Feb 2018 • Yaoming Zhu, Sidi Lu, Lei Zheng, Jiaxian Guo, Wei-Nan Zhang, Jun Wang, Yong Yu
We introduce Texygen, a benchmarking platform to support research on open-domain text generation models.
3 code implementations • 2 Dec 2017 • Lianmin Zheng, Jiacheng Yang, Han Cai, Wei-Nan Zhang, Jun Wang, Yong Yu
Unlike previous research platforms on single or multi-agent reinforcement learning, MAgent focuses on supporting the tasks and the applications that require hundreds to millions of agents.
Multi-agent Reinforcement Learning reinforcement-learning +2
no code implementations • 30 Nov 2017 • Rui Luo, Wei-Nan Zhang, Xiaojun Xu, Jun Wang
In this paper, we show that the recent integration of statistical models with deep recurrent neural networks provides a new way of formulating volatility (the degree of variation of time series) models that have been widely used in time series analysis and prediction in finance.
5 code implementations • 22 Nov 2017 • Hongwei Wang, Jia Wang, Jialin Wang, Miao Zhao, Wei-Nan Zhang, Fuzheng Zhang, Xing Xie, Minyi Guo
The goal of graph representation learning is to embed each vertex in a graph into a low-dimensional vector space.
Ranked #1 on Node Classification on Wikipedia
no code implementations • 26 Oct 2017 • Long Chen, Fajie Yuan, Joemon M. Jose, Wei-Nan Zhang
Although the word-popularity based negative sampler has shown superb performance in the skip-gram model, the theoretical motivation behind oversampling popular (non-observed) words as negative samples is still not well understood.
no code implementations • 17 Oct 2017 • Runze Xu, Zhiming Zhou, Wei-Nan Zhang, Yong Yu
Face transfer animates the facial performances of the character in the target video by a source actor.
2 code implementations • 29 Sep 2017 • Wei-Nan Zhang, Zhigang Chen, Wanxiang Che, Guoping Hu, Ting Liu
In this paper, we introduce the first evaluation of Chinese human-computer dialogue technology.
6 code implementations • 24 Sep 2017 • Jiaxian Guo, Sidi Lu, Han Cai, Wei-Nan Zhang, Yong Yu, Jun Wang
Automatically generating coherent and semantically meaningful text has many applications in machine translation, dialogue systems, image captioning, etc.
Ranked #1 on Text Generation on COCO Captions
no code implementations • 13 Sep 2017 • Yaodong Yang, Lantao Yu, Yiwei Bai, Jun Wang, Wei-Nan Zhang, Ying Wen, Yong Yu
We conduct an empirical study on discovering the ordered collective dynamics obtained by a population of intelligence agents, driven by million-agent reinforcement learning.
no code implementations • EMNLP 2017 • Qingyu Yin, Yu Zhang, Wei-Nan Zhang, Ting Liu
Existing approaches for Chinese zero pronoun resolution typically utilize only syntactical and lexical features while ignoring semantic information.
no code implementations • 5 Aug 2017 • Zhiming Zhou, Wei-Nan Zhang, Jun Wang
In this article, we mathematically study several GAN related topics, including Inception score, label smoothing, gradient vanishing and the -log(D(x)) alternative.
3 code implementations • 16 Jul 2017 • Han Cai, Tianyao Chen, Wei-Nan Zhang, Yong Yu, Jun Wang
Techniques for automatically designing deep neural network architectures such as reinforcement learning based approaches have recently shown promising results.
Ranked #151 on Image Classification on CIFAR-10
no code implementations • 5 Jul 2017 • Haifeng Zhang, Jun Wang, Zhiming Zhou, Wei-Nan Zhang, Ying Wen, Yong Yu, Wenxin Li
In typical reinforcement learning (RL), the environment is assumed given and the goal of the learning is to identify an optimal policy for the agent taking actions through its interactions with the environment.
8 code implementations • 5 Jul 2017 • Jian Shen, Yanru Qu, Wei-Nan Zhang, Yong Yu
Inspired by Wasserstein GAN, in this paper we propose a novel approach to learn domain invariant feature representations, namely Wasserstein Distance Guided Representation Learning (WDGRL).
3 code implementations • 30 May 2017 • Jun Wang, Lantao Yu, Wei-Nan Zhang, Yu Gong, Yinghui Xu, Benyou Wang, Peng Zhang, Dell Zhang
This paper provides a unified account of two schools of thinking in information retrieval modelling: the generative retrieval focusing on predicting relevant documents given a query, and the discriminative retrieval focusing on predicting relevancy given a query-document pair.
2 code implementations • ICLR 2018 • Zhiming Zhou, Han Cai, Shu Rong, Yuxuan Song, Kan Ren, Wei-Nan Zhang, Yong Yu, Jun Wang
Our proposed model also outperforms the baseline methods in the new metric.
1 code implementation • 22 Feb 2017 • Yun Cao, Zhiming Zhou, Wei-Nan Zhang, Yong Yu
Colorization of grayscale images has been a hot topic in computer vision.
1 code implementation • 10 Jan 2017 • Han Cai, Kan Ren, Wei-Nan Zhang, Kleanthis Malialis, Jun Wang, Yong Yu, Defeng Guo
In this paper, we formulate the bid decision process as a reinforcement learning problem, where the state space is represented by the auction information and the campaign's real-time parameters, while an action is the bid price to set.
no code implementations • 9 Jan 2017 • Wei-Nan Zhang, Ting Liu, Yifa Wang, Qingfu Zhu
Moreover, the lexical divergence of the responses generated by the 5 personalized models indicates that the proposed two-phase approach achieves good results on modeling the responding style of human and generating personalized responses for the conversational systems.
11 code implementations • 1 Nov 2016 • Yanru Qu, Han Cai, Kan Ren, Wei-Nan Zhang, Yong Yu, Ying Wen, Jun Wang
Predicting user responses, such as clicks and conversions, is of great importance and has found its usage in many Web applications including recommender systems, web search and online advertising.
Ranked #1 on Click-Through Rate Prediction on iPinYou
1 code implementation • 7 Oct 2016 • Jun Wang, Wei-Nan Zhang, Shuai Yuan
The most significant progress in recent years in online display advertising is what is known as the Real-Time Bidding (RTB) mechanism to buy and sell ads.
Computer Science and Game Theory
23 code implementations • 18 Sep 2016 • Lantao Yu, Wei-Nan Zhang, Jun Wang, Yong Yu
As a new way of training generative models, Generative Adversarial Nets (GAN) that uses a discriminative model to guide the training of the generative model has enjoyed considerable success in generating real-valued data.
Ranked #2 on Text Generation on Chinese Poems
no code implementations • 19 Aug 2016 • Qingfu Zhu, Wei-Nan Zhang, Lianqiang Zhou, Ting Liu
An obvious drawback of these work is that there is not a learnable relationship between words and the start symbol.
no code implementations • 22 Jun 2016 • Ying Wen, Wei-Nan Zhang, Rui Luo, Jun Wang
Recently, the rapid development of word embedding and neural networks has brought new inspiration to various NLP and IR tasks.
no code implementations • ACL 2017 • Ting Liu, Yiming Cui, Qingyu Yin, Wei-Nan Zhang, Shijin Wang, Guoping Hu
Most existing approaches for zero pronoun resolution are heavily relying on annotated data, which is often released by shared task organizers.
no code implementations • 7 May 2016 • Wei-Nan Zhang, Ting Liu, Qingyu Yin, Yu Zhang
Dropped pronouns (DPs) are ubiquitous in pro-drop languages like Chinese, Japanese etc.
no code implementations • 20 Apr 2016 • Qingyu Yin, Wei-Nan Zhang, Yu Zhang, Ting Liu
This is because zero pronouns have no descriptive information, which results in difficulty in explicitly capturing their semantic similarities with antecedents.
1 code implementation • 3 Mar 2016 • Wei-Nan Zhang, Yifei Rong, Jun Wang, Tianchi Zhu, Xiaofan Wang
In this paper, we propose a feedback control mechanism for RTB which helps advertisers dynamically adjust the bids to effectively control the KPIs, e. g., the auction winning ratio and the effective cost per click.
Computer Science and Game Theory Systems and Control
5 code implementations • 11 Jan 2016 • Wei-Nan Zhang, Tianming Du, Jun Wang
Different from continuous raw features that we usually found in the image and audio domains, the input features in web space are always of multi-field and are mostly discrete and categorical while their dependencies are little known.
Ranked #2 on Click-Through Rate Prediction on Company*
no code implementations • 11 Jan 2016 • Wei-Nan Zhang, Lingxi Chen, Jun Wang
In this work, we propose a general framework which learns the user profiles based on their online browsing behaviour, and transfers the learned knowledge onto prediction of their ad response.
2 code implementations • 25 Jul 2014 • Wei-Nan Zhang, Shuai Yuan, Jun Wang, Xuehua Shen
This dataset directly supports the experiments of some important research problems such as bid optimisation and CTR estimation.
Computer Science and Game Theory Computers and Society