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Current question answering (QA) systems primarily consider the single-answer scenario, where each question is assumed to be paired with one correct answer. However, in many real-world QA applications, multiple answer scenarios arise where…

Computation and Language · Computer Science 2022-05-03 Wenxuan Zhou , Qiang Ning , Heba Elfardy , Kevin Small , Muhao Chen

In today's digital world, seeking answers to health questions on the Internet is a common practice. However, existing question answering (QA) systems often rely on using pre-selected and annotated evidence documents, thus making them…

Computation and Language · Computer Science 2024-04-15 Juraj Vladika , Florian Matthes

Question Answering (QA) is a challenging topic since it requires tackling the various difficulties of natural language understanding. Since evaluation is important not only for identifying the strong and weak points of the various…

Computation and Language · Computer Science 2021-02-09 Katerina Papantoniou , Yannis Tzitzikas

Visual Question Answering (VQA) is an emerging area of interest for researches, being a recent problem in natural language processing and image prediction. In this area, an algorithm needs to answer questions about certain images. As of the…

Question Answering (QA) is a natural language processing task that aims at obtaining relevant answers to user questions. While some progress has been made in this area, biomedical questions are still a challenge to most QA approaches, due…

Information Retrieval · Computer Science 2020-12-23 Andre Lamurias , Diana Sousa , Francisco M. Couto

Temporal Knowledge Graphs (Temporal KGs) extend regular Knowledge Graphs by providing temporal scopes (start and end times) on each edge in the KG. While Question Answering over KG (KGQA) has received some attention from the research…

Machine Learning · Computer Science 2021-06-04 Apoorv Saxena , Soumen Chakrabarti , Partha Talukdar

his paper explores what kinds of questions are best served by the way generative AI (GenAI) using Large Language Models(LLMs) that aggregate and package knowledge, and when traditional curated web-sourced search results serve users better.…

Human-Computer Interaction · Computer Science 2024-10-17 Ted Selker , Yunzi Wu

Open-domain question answering aims at solving the task of locating the answers to user-generated questions in massive collections of documents. There are two families of solutions available: retriever-readers, and knowledge-graph-based…

Computation and Language · Computer Science 2020-10-26 Jinfeng Xiao , Lidan Wang , Franck Dernoncourt , Trung Bui , Tong Sun , Jiawei Han

Automatic question generation (AQG) has broad applicability in domains such as tutoring systems, conversational agents, healthcare literacy, and information retrieval. Existing efforts at AQG have been limited to short answer lengths of up…

Computation and Language · Computer Science 2020-04-16 Shlok Kumar Mishra , Pranav Goel , Abhishek Sharma , Abhyuday Jagannatha , David Jacobs , Hal Daumé

Question answering (QA) is a natural language understanding task within the fields of information retrieval and information extraction that has attracted much attention from the computational linguistics and artificial intelligence research…

Computation and Language · Computer Science 2022-08-16 Kiet Van Nguyen , Phong Nguyen-Thuan Do , Nhat Duy Nguyen , Tin Van Huynh , Anh Gia-Tuan Nguyen , Ngan Luu-Thuy Nguyen

Retrieval-Augmented Generation (RAG) has emerged as a powerful technique for enhancing the quality of responses in Question-Answering (QA) tasks. However, existing approaches often struggle with retrieving contextually relevant information,…

Computation and Language · Computer Science 2026-01-27 Tianyi Yang , Nashrah Haque , Vaishnave Jonnalagadda , Yuya Jeremy Ong , Zhehui Chen , Yanzhao Wu , Lei Yu , Divyesh Jadav , Wenqi Wei

The ability to understand a user's underlying needs is critical for conversational systems, especially with limited input from users in a conversation. Thus, in such a domain, Asking Clarification Questions (ACQs) to reveal users' true…

Information Retrieval · Computer Science 2023-05-26 Hossein A. Rahmani , Xi Wang , Yue Feng , Qiang Zhang , Emine Yilmaz , Aldo Lipani

Question answering (QA) over knowledge graphs has gained significant momentum over the past five years due to the increasing availability of large knowledge graphs and the rising importance of question answering for user interaction.…

Information Retrieval · Computer Science 2020-07-28 Kuldeep Singh , Ioanna Lytra , Arun Sethupat Radhakrishna , Saeedeh Shekarpour , Maria-Esther Vidal , Jens Lehmann

To date, most of recent work under the retrieval-reader framework for open-domain QA focuses on either extractive or generative reader exclusively. In this paper, we study a hybrid approach for leveraging the strengths of both models. We…

Computation and Language · Computer Science 2021-06-04 Hao Cheng , Yelong Shen , Xiaodong Liu , Pengcheng He , Weizhu Chen , Jianfeng Gao

As an important part of Artificial Intelligence (AI), Question Answering (QA) aims at generating answers to questions phrased in natural language. While there has been substantial progress in open-domain question answering, QA systems are…

Computation and Language · Computer Science 2021-05-21 Gengchen Mai , Krzysztof Janowicz , Rui Zhu , Ling Cai , Ni Lao

We introduce Talk to Papers, which exploits the recent open-domain question answering (QA) techniques to improve the current experience of academic search. It's designed to enable researchers to use natural language queries to find precise…

Computation and Language · Computer Science 2020-05-25 Tianchang Zhao , Kyusong Lee

Community question answering (CQA) gains increasing popularity in both academy and industry recently. However, the redundancy and lengthiness issues of crowdsourced answers limit the performance of answer selection and lead to reading…

Computation and Language · Computer Science 2019-11-25 Yang Deng , Wai Lam , Yuexiang Xie , Daoyuan Chen , Yaliang Li , Min Yang , Ying Shen

While there has been substantial progress in text comprehension through simple factoid question answering, more holistic comprehension of a discourse still presents a major challenge (Dunietz et al., 2020). Someone critically reflecting on…

Computation and Language · Computer Science 2022-10-18 Wei-Jen Ko , Cutter Dalton , Mark Simmons , Eliza Fisher , Greg Durrett , Junyi Jessy Li

Recent work in semantic parsing for question answering has focused on long and complicated questions, many of which would seem unnatural if asked in a normal conversation between two humans. In an effort to explore a conversational QA…

Computation and Language · Computer Science 2016-11-07 Mohit Iyyer , Wen-tau Yih , Ming-Wei Chang

Question Answering has come a long way from answer sentence selection, relational QA to reading and comprehension. We shift our attention to generative question answering (gQA) by which we facilitate machine to read passages and answer…

Computation and Language · Computer Science 2018-07-10 Rajarshee Mitra