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Asking good questions in large-scale, open-domain conversational systems is quite significant yet rather untouched. This task, substantially different from traditional question generation, requires to question not only with various patterns…

Computation and Language · Computer Science 2018-05-15 Yansen Wang , Chenyi Liu , Minlie Huang , Liqiang Nie

Discourse relation identification has been an active area of research for many years, and the challenge of identifying implicit relations remains largely an unsolved task, especially in the context of an open-domain dialogue system.…

Computation and Language · Computer Science 2019-07-10 Mingyu Derek Ma , Kevin K. Bowden , Jiaqi Wu , Wen Cui , Marilyn Walker

We present an open-domain Question-Answering system that learns to answer questions based on successful past interactions. We follow a pattern-based approach to Answer-Extraction, where (lexico-syntactic) patterns that relate a question to…

Computation and Language · Computer Science 2013-09-05 Ana Cristina Mendes , Luísa Coheur , Sérgio Curto

We deal with the scenario of conversational search, where user queries are under-specified or ambiguous. This calls for a mixed-initiative setup. User-asks (queries) and system-answers, as well as system-asks (clarification questions) and…

Computation and Language · Computer Science 2022-05-24 Yosi Mass , Doron Cohen , Asaf Yehudai , David Konopnicki

Identifying the topic (domain) of each user's utterance in open-domain conversational systems is a crucial step for all subsequent language understanding and response tasks. In particular, for complex domains, an utterance is often routed…

Computation and Language · Computer Science 2020-05-29 Ali Ahmadvand , Harshita Sahijwani , Jason Ingyu Choi , Eugene Agichtein

Successful conversational search systems can present natural, adaptive and interactive shopping experience for online shopping customers. However, building such systems from scratch faces real word challenges from both imperfect product…

Computation and Language · Computer Science 2021-09-14 Liqiang Xiao , Jun Ma2 , Xin Luna Dong , Pascual Martinez-Gomez , Nasser Zalmout , Wei Chen , Tong Zhao , Hao He , Yaohui Jin

As a cornerstone of modern information access, search engines have become indispensable in everyday life. With the rapid advancements in AI and natural language processing (NLP) technologies, particularly large language models (LLMs),…

Computation and Language · Computer Science 2025-08-07 Fengran Mo , Kelong Mao , Ziliang Zhao , Hongjin Qian , Haonan Chen , Yiruo Cheng , Xiaoxi Li , Yutao Zhu , Zhicheng Dou , Jian-Yun Nie

While previous conversational information-seeking (CIS) research has focused on passage retrieval, reranking, and query rewriting, the challenge of synthesizing retrieved information into coherent responses remains. The proposed research…

Information Retrieval · Computer Science 2024-06-28 Weronika Łajewska

Conversational Information Seeking has evolved rapidly in the last few years with the development of Large Language Models providing the basis for interpreting and responding in a naturalistic manner to user requests. iKAT emphasizes the…

Information Retrieval · Computer Science 2024-02-23 Mohammad Aliannejadi , Zahra Abbasiantaeb , Shubham Chatterjee , Jeffery Dalton , Leif Azzopardi

The conversational search paradigm introduces a step change over the traditional search paradigm by allowing users to interact with search agents in a multi-turn and natural fashion. The conversation flows naturally and is usually centered…

Computation and Language · Computer Science 2021-04-15 Mariana Leite , Rafael Ferreira , David Semedo , João Magalhães

Most prior work on task-oriented dialogue systems are restricted to limited coverage of domain APIs. However, users oftentimes have requests that are out of the scope of these APIs. This work focuses on responding to these…

Computation and Language · Computer Science 2021-06-18 Di Jin , Seokhwan Kim , Dilek Hakkani-Tur

Conversational search enables multi-turn interactions between users and systems to fulfill users' complex information needs. During this interaction, the system should understand the users' search intent within the conversational context…

Information Retrieval · Computer Science 2025-06-13 Fengran Mo , Chuan Meng , Mohammad Aliannejadi , Jian-Yun Nie

In this paper, we address the problem of answering complex information needs by conversing conversations with search engines, in the sense that users can express their queries in natural language, and directly receivethe information they…

Information Retrieval · Computer Science 2021-05-19 Pengjie Ren , Zhumin Chen , Zhaochun Ren , Evangelos Kanoulas , Christof Monz , Maarten de Rijke

We propose a unified Implicit Dialog framework for goal-oriented, information seeking tasks of Conversational Search applications. It aims to enable dialog interactions with domain data without replying on explicitly encoded the rules but…

Computation and Language · Computer Science 2018-02-14 Song Feng , R. Chulaka Gunasekara , Sunil Shashidhara , Kshitij P. Fadnis , Lazaros C. Polymenakos

Our research is focused on making a human-like question answering system which can answer rationally. The distinguishing characteristic of our approach is that it will use automated common sense reasoning to truly "understand" dialogues,…

Artificial Intelligence · Computer Science 2019-09-19 Kinjal Basu

The use of conversational assistants to search for information is becoming increasingly more popular among the general public, pushing the research towards more advanced and sophisticated techniques. In the last few years, in particular,…

Information Retrieval · Computer Science 2021-04-15 Rafael Ferreira , David Semedo , Joao Magalhaes

Chat dialogues contain considerable useful information about a speaker's interests, preferences, and experiences.Thus, knowledge from open-domain chat dialogue can be used to personalize various systems and offer recommendations for…

Machine Learning · Computer Science 2024-02-08 Ryutaro Asahara , Masaki Takahashi , Chiho Iwahashi , Michimasa Inaba

Target-guided open-domain conversation aims to proactively and naturally guide a dialogue agent or human to achieve specific goals, topics or keywords during open-ended conversations. Existing methods mainly rely on single-turn datadriven…

Computation and Language · Computer Science 2020-03-09 Jinghui Qin , Zheng Ye , Jianheng Tang , Xiaodan Liang

Recent advancements in conversational systems have significantly enhanced human-machine interactions across various domains. However, training these systems is challenging due to the scarcity of specialized dialogue data. Traditionally,…

Computation and Language · Computer Science 2026-05-29 Heydar Soudani , Roxana Petcu , Evangelos Kanoulas , Faegheh Hasibi

We introduce an open-domain topic classification system that accepts user-defined taxonomy in real time. Users will be able to classify a text snippet with respect to any candidate labels they want, and get instant response from our web…

Computation and Language · Computer Science 2023-07-03 Hantian Ding , Jinrui Yang , Yuqian Deng , Hongming Zhang , Dan Roth