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Question generation (QG) attempts to solve the inverse of question answering (QA) problem by generating a natural language question given a document and an answer. While sequence to sequence neural models surpass rule-based systems for QG,…

Computation and Language · Computer Science 2020-11-03 Deepak Gupta , Hardik Chauhan , Akella Ravi Tej , Asif Ekbal , Pushpak Bhattacharyya

Conversational question answering (ConvQA) tackles sequential information needs where contexts in follow-up questions are left implicit. Current ConvQA systems operate over homogeneous sources of information: either a knowledge base (KB),…

Information Retrieval · Computer Science 2023-07-03 Philipp Christmann , Rishiraj Saha Roy , Gerhard Weikum

Conversational Question Answering (CQA) aims to answer questions contained within dialogues, which are not easily interpretable without context. Developing a model to rewrite conversational questions into self-contained ones is an emerging…

Computation and Language · Computer Science 2022-11-02 Zhiyu Chen , Jie Zhao , Anjie Fang , Besnik Fetahu , Oleg Rokhlenko , Shervin Malmasi

Retrieval-Augmented Generation (RAG) aims to generate more reliable and accurate responses, by augmenting large language models (LLMs) with the external vast and dynamic knowledge. Most previous work focuses on using RAG for single-round…

Artificial Intelligence · Computer Science 2024-03-28 Linhao Ye , Zhikai Lei , Jianghao Yin , Qin Chen , Jie Zhou , Liang He

Question answer generation using Natural Language Processing models is ubiquitous in the world around us. It is used in many use cases such as the building of chat bots, suggestive prompts in google search and also as a way of navigating…

Computation and Language · Computer Science 2023-11-28 Shashidhar Reddy Javaji , Haoran Hu , Sai Sameer Vennam , Vijaya Gajanan Buddhavarapu

Neural network models recently proposed for question answering (QA) primarily focus on capturing the passage-question relation. However, they have minimal capability to link relevant facts distributed across multiple sentences which is…

Computation and Language · Computer Science 2018-01-26 Souvik Kundu , Hwee Tou Ng

Question Answering (QA), as a research field, has primarily focused on either knowledge bases (KBs) or free text as a source of knowledge. These two sources have historically shaped the kinds of questions that are asked over these sources,…

Computation and Language · Computer Science 2019-02-26 Igor Labutov , Bishan Yang , Anusha Prakash , Amos Azaria

Most existing end-to-end Table Question Answering (Table QA) models consist of a two-stage framework with a retriever to select relevant table candidates from a corpus and a reader to locate the correct answers from table candidates. Even…

Computation and Language · Computer Science 2022-04-01 Feifei Pan , Mustafa Canim , Michael Glass , Alfio Gliozzo , James Hendler

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

In this paper, we focus on task-specific question answering (QA). To this end, we introduce a method for generating exhaustive and high-quality training data, which allows us to train compact (e.g., run on a mobile device), task-specific QA…

Computation and Language · Computer Science 2024-01-25 Hai X. Pham , Isma Hadji , Xinnuo Xu , Ziedune Degutyte , Jay Rainey , Evangelos Kazakos , Afsaneh Fazly , Georgios Tzimiropoulos , Brais Martinez

Knowledge-aided dialogue response generation aims at augmenting chatbots with relevant external knowledge in the hope of generating more informative responses. The majority of previous work assumes that the relevant knowledge is given as…

Computation and Language · Computer Science 2023-02-21 Ante Wang , Linfeng Song , Qi Liu , Haitao Mi , Longyue Wang , Zhaopeng Tu , Jinsong Su , Dong Yu

Although neural conversation models are effective in learning how to produce fluent responses, their primary challenge lies in knowing what to say to make the conversation contentful and non-vacuous. We present a new end-to-end approach to…

Computation and Language · Computer Science 2019-06-10 Lianhui Qin , Michel Galley , Chris Brockett , Xiaodong Liu , Xiang Gao , Bill Dolan , Yejin Choi , Jianfeng Gao

Neural network-based methods represent the state-of-the-art in question generation from text. Existing work focuses on generating only questions from text without concerning itself with answer generation. Moreover, our analysis shows that…

Computation and Language · Computer Science 2018-03-13 Vishwajeet Kumar , Kireeti Boorla , Yogesh Meena , Ganesh Ramakrishnan , Yuan-Fang Li

Despite recent advances in Visual QuestionAnswering (VQA), it remains a challenge todetermine how much success can be attributedto sound reasoning and comprehension ability.We seek to investigate this question by propos-ing a new task…

Artificial Intelligence · Computer Science 2020-04-07 Hammad A. Ayyubi , Md. Mehrab Tanjim , Julian J. McAuley , Garrison W. Cottrell

This paper presents an end-to-end neural network model, named Neural Generative Question Answering (GENQA), that can generate answers to simple factoid questions, based on the facts in a knowledge-base. More specifically, the model is built…

Computation and Language · Computer Science 2016-04-25 Jun Yin , Xin Jiang , Zhengdong Lu , Lifeng Shang , Hang Li , Xiaoming Li

Extractive QA models have shown very promising performance in predicting the correct answer to a question for a given passage. However, they sometimes result in predicting the correct answer text but in a context irrelevant to the given…

Computation and Language · Computer Science 2020-11-06 Yeon Seonwoo , Ji-Hoon Kim , Jung-Woo Ha , Alice Oh

In conversational question answering, users express their information needs through a series of utterances with incomplete context. Typical ConvQA methods rely on a single source (a knowledge base (KB), or a text corpus, or a set of…

Information Retrieval · Computer Science 2023-07-19 Philipp Christmann , Rishiraj Saha Roy , Gerhard Weikum

Answer validation in machine reading comprehension (MRC) consists of verifying an extracted answer against an input context and question pair. Previous work has looked at re-assessing the "answerability" of the question given the extracted…

Computation and Language · Computer Science 2020-11-09 Revanth Gangi Reddy , Md Arafat Sultan , Efsun Sarioglu Kayi , Rong Zhang , Vittorio Castelli , Avirup Sil

Any system which performs goal-directed continual learning must not only learn incrementally but process and absorb information incrementally. Such a system also has to understand when its goals have been achieved. In this paper, we…

Computation and Language · Computer Science 2019-01-16 Samira Abnar , Tania Bedrax-weiss , Tom Kwiatkowski , William W. Cohen

Retrieval Augmented Generation (RAG) has become a popular application for large language models. It is preferable that successful RAG systems provide accurate answers that are supported by being grounded in a passage without any…

Computation and Language · Computer Science 2024-12-24 Sara Rosenthal , Avirup Sil , Radu Florian , Salim Roukos