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Intelligent personal assistant systems with either text-based or voice-based conversational interfaces are becoming increasingly popular around the world. Retrieval-based conversation models have the advantages of returning fluent and…

Information Retrieval · Computer Science 2018-05-10 Liu Yang , Minghui Qiu , Chen Qu , Jiafeng Guo , Yongfeng Zhang , W. Bruce Croft , Jun Huang , Haiqing Chen

Retrieval-based conversation systems generally tend to highly rank responses that are semantically similar or even identical to the given conversation context. While the system's goal is to find the most appropriate response, rather than…

Computation and Language · Computer Science 2018-10-09 Denis Fedorenko , Nikita Smetanin , Artem Rodichev

Retrieval-based conversational systems learn to rank response candidates for a given dialogue context by computing the similarity between their vector representations. However, training on a single textual form of the multi-turn context…

Computation and Language · Computer Science 2022-04-19 Lahari Poddar , Peiyao Wang , Julia Reinspach

Multi-turn dialogue reading comprehension aims to teach machines to read dialogue contexts and solve tasks such as response selection and answering questions. The major challenges involve noisy history contexts and especial prerequisites of…

Computation and Language · Computer Science 2021-02-11 Zhuosheng Zhang , Junlong Li , Hai Zhao

We examine the problem of learning to cooperate in the context of wireless communication. In our setting, two agents must learn modulation schemes that enable them to communicate across a power-constrained additive white Gaussian noise…

Signal Processing · Electrical Eng. & Systems 2020-04-03 Anant Sahai , Joshua Sanz , Vignesh Subramanian , Caryn Tran , Kailas Vodrahalli

Open-domain neural dialogue models have achieved high performance in response ranking and evaluation tasks. These tasks are formulated as a binary classification of responses given in a dialogue context, and models generally learn to make…

Computation and Language · Computer Science 2021-06-11 Prakhar Gupta , Yulia Tsvetkov , Jeffrey P. Bigham

The ability of a dialog system to express consistent language style during conversations has a direct, positive impact on its usability and on user satisfaction. Although previous studies have demonstrated that style transfer is feasible…

Computation and Language · Computer Science 2021-09-14 Hao Fu , Yan Wang , Ruihua Song , Tianran Hu , Jianyun Nie

Current self-training methods such as standard self-training, co-training, tri-training, and others often focus on improving model performance on a single task, utilizing differences in input features, model architectures, and training…

Computation and Language · Computer Science 2023-02-01 Mian Zhang , Lifeng Jin , Linfeng Song , Haitao Mi , Xiabing Zhou , Dong Yu

Conversational modeling is an important task in natural language understanding and machine intelligence. Although previous approaches exist, they are often restricted to specific domains (e.g., booking an airline ticket) and require…

Computation and Language · Computer Science 2015-07-23 Oriol Vinyals , Quoc Le

Cross-modal retrieval relies on well-matched large-scale datasets that are laborious in practice. Recently, to alleviate expensive data collection, co-occurring pairs from the Internet are automatically harvested for training. However, it…

Machine Learning · Computer Science 2023-12-29 Zhuohang Dang , Minnan Luo , Chengyou Jia , Guang Dai , Xiaojun Chang , Jingdong Wang

Deep learning with noisy labels is challenging as deep neural networks have the high capacity to memorize the noisy labels. In this paper, we propose a learning algorithm called Co-matching, which balances the consistency and divergence…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Yangdi Lu , Yang Bo , Wenbo He

Conversational retrieval refers to an information retrieval system that operates in an iterative and interactive manner, requiring the retrieval of various external resources, such as persona, knowledge, and even response, to effectively…

Computation and Language · Computer Science 2024-02-29 Hongru Wang , Boyang Xue , Baohang Zhou , Rui Wang , Fei Mi , Weichao Wang , Yasheng Wang , Kam-Fai Wong

Language understanding (LU) and dialogue policy learning are two essential components in conversational systems. Human-human dialogues are not well-controlled and often random and unpredictable due to their own goals and speaking habits.…

Computation and Language · Computer Science 2017-10-03 Ta-Chung Chi , Po-Chun Chen , Shang-Yu Su , Yun-Nung Chen

Context modeling plays a significant role in building multi-turn dialogue systems. In order to make full use of context information, systems can use Incomplete Utterance Rewriting(IUR) methods to simplify the multi-turn dialogue into…

Computation and Language · Computer Science 2022-03-23 Zhihao Wang , Tangjian Duan , Zihao Wang , Minghui Yang , Zujie Wen , Yongliang Wang

Multiturn dialogue models aim to generate human-like responses by leveraging conversational context, consisting of utterances from previous exchanges. Existing methods often neglect the interactions between these utterances or treat all of…

Computation and Language · Computer Science 2025-04-15 Akanksha Mehndiratta , Krishna Asawa

Discourse coherence plays an important role in the translation of one text. However, the previous reported models most focus on improving performance over individual sentence while ignoring cross-sentence links and dependencies, which…

Computation and Language · Computer Science 2018-11-15 Hao Xiong , Zhongjun He , Hua Wu , Haifeng Wang

We propose a model to tackle classification tasks in the presence of very little training data. To this aim, we approximate the notion of exact match with a theoretically sound mechanism that computes a probability of matching in the input…

In this work, we systematically investigate how well current models of coherence can capture aspects of text implicated in discourse organisation. We devise two datasets of various linguistic alterations that undermine coherence and test…

Computation and Language · Computer Science 2020-11-13 Youmna Farag , Josef Valvoda , Helen Yannakoudakis , Ted Briscoe

We propose a method that can leverage unlabeled data to learn a matching model for response selection in retrieval-based chatbots. The method employs a sequence-to-sequence architecture (Seq2Seq) model as a weak annotator to judge the…

Computation and Language · Computer Science 2018-05-11 Yu Wu , Wei Wu , Zhoujun Li , Ming Zhou

Modeling engagement in collaborative learning remains challenging, especially in technology-enhanced environments where surface indicators such as participation frequency can be misleading. This study proposes a lightweight and…

Human-Computer Interaction · Computer Science 2026-01-21 Joan Zhong