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An important aspect of artificial intelligence (AI) is the ability to reason in a step-by-step "algorithmic" manner that can be inspected and verified for its correctness. This is especially important in the domain of question answering…

Artificial Intelligence · Computer Science 2021-11-08 Kwabena Nuamah

Question answering over knowledge bases (KBQA) has become a popular approach to help users extract information from knowledge bases. Although several systems exist, choosing one suitable for a particular application scenario is difficult.…

Computation and Language · Computer Science 2022-11-16 Khiem Vinh Tran , Hao Phu Phan , Khang Nguyen Duc Quach , Ngan Luu-Thuy Nguyen , Jun Jo , Thanh Tam Nguyen

Open-domain question answering (QA) aims to find the answer to a question from a large collection of documents.Though many models for single-document machine comprehension have achieved strong performance, there is still much room for…

Computation and Language · Computer Science 2020-06-11 Mantong Zhou , Zhouxing Shi , Minlie Huang , Xiaoyan Zhu

While conversing with chatbots, humans typically tend to ask many questions, a significant portion of which can be answered by referring to large-scale knowledge graphs (KG). While Question Answering (QA) and dialog systems have been…

Computation and Language · Computer Science 2018-10-05 Amrita Saha , Vardaan Pahuja , Mitesh M. Khapra , Karthik Sankaranarayanan , Sarath Chandar

Information visualizations such as bar charts and line charts are very common for analyzing data and discovering critical insights. Often people analyze charts to answer questions that they have in mind. Answering such questions can be…

Computation and Language · Computer Science 2022-05-24 Enamul Hoque , Parsa Kavehzadeh , Ahmed Masry

In open question answering (QA), the answer to a question is produced by retrieving and then analyzing documents that might contain answers to the question. Most open QA systems have considered only retrieving information from unstructured…

Computation and Language · Computer Science 2021-02-11 Wenhu Chen , Ming-Wei Chang , Eva Schlinger , William Wang , William W. Cohen

Question answering (QA) aims to understand questions and find appropriate answers. In real-world QA systems, Frequently Asked Question (FAQ) based QA is usually a practical and effective solution, especially for some complicated questions…

Computation and Language · Computer Science 2020-10-23 Ruobing Xie , Yanan Lu , Fen Lin , Leyu Lin

Open-domain question answering (QA) is the tasl of identifying answers to natural questions from a large corpus of documents. The typical open-domain QA system starts with information retrieval to select a subset of documents from the…

Computation and Language · Computer Science 2020-09-03 Sina J. Semnani , Manish Pandey

One of the key AI tools for textual corpora exploration is natural language question-answering (QA). Unlike keyword-based search engines, QA algorithms receive and process natural language questions and produce precise answers to these…

Computation and Language · Computer Science 2023-08-01 Omri Suissa , Maayan Zhitomirsky-Geffet , Avshalom Elmalech

Table Question Answering (Table QA) refers to providing precise answers from tables to answer a user's question. In recent years, there have been a lot of works on table QA, but there is a lack of comprehensive surveys on this research…

Computation and Language · Computer Science 2022-07-13 Nengzheng Jin , Joanna Siebert , Dongfang Li , Qingcai Chen

Time plays a critical role in how information is generated, retrieved, and interpreted. In this survey, we provide a comprehensive overview of Temporal Question Answering (TQA), a research area that focuses on answering questions involving…

Computation and Language · Computer Science 2026-04-24 Bhawna Piryani , Abdelrahman Abdallah , Jamshid Mozafari , Avishek Anand , Adam Jatowt

Open Domain Question Answering (QA) is evolving from complex pipelined systems to end-to-end deep neural networks. Specialized neural models have been developed for extracting answers from either text alone or Knowledge Bases (KBs) alone.…

Computation and Language · Computer Science 2018-09-05 Haitian Sun , Bhuwan Dhingra , Manzil Zaheer , Kathryn Mazaitis , Ruslan Salakhutdinov , William W. Cohen

Text-based Question Answering (QA) is a challenging task which aims at finding short concrete answers for users' questions. This line of research has been widely studied with information retrieval techniques and has received increasing…

Information Retrieval · Computer Science 2020-05-28 Zahra Abbasiantaeb , Saeedeh Momtazi

Question Answering (QA) is one of the most important natural language processing (NLP) tasks. It aims using NLP technologies to generate a corresponding answer to a given question based on the massive unstructured corpus. With the…

Computation and Language · Computer Science 2022-07-01 Zhen Wang

Table Question Answering (TQA) aims to answer natural language questions about tabular data, often accompanied by additional contexts such as text passages. The task spans diverse settings, varying in table representation, question/answer…

Computation and Language · Computer Science 2026-04-21 Wei Zhou , Bolei Ma , Annemarie Friedrich , Mohsen Mesgar

Question answering (QA) has been the subject of a resurgence over the past years. The said resurgence has led to a multitude of question answering (QA) systems being developed both by companies and research facilities. While a few…

Artificial Intelligence · Computer Science 2016-11-09 Ricardo Usbeck , Jonathan Huthmann , Nico Duldhardt , Axel-Cyrille Ngonga Ngomo

Complex query answering (CQA) on knowledge graphs (KGs) is gaining momentum as a challenging reasoning task. In this paper, we show that the current benchmarks for CQA might not be as complex as we think, as the way they are built distorts…

Machine Learning · Computer Science 2025-07-04 Cosimo Gregucci , Bo Xiong , Daniel Hernandez , Lorenzo Loconte , Pasquale Minervini , Steffen Staab , Antonio Vergari

Community-based Question Answering (CQA) sites play an important role in addressing health information needs. However, a significant number of posted questions remain unanswered. Automatically answering the posted questions can provide a…

Machine Learning · Statistics 2016-07-05 Papis Wongchaisuwat , Diego Klabjan , Siddhartha R. Jonnalagadda

Visual Question Answering (VQA) presents a unique challenge as it requires the ability to understand and encode the multi-modal inputs - in terms of image processing and natural language processing. The algorithm further needs to learn how…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Supriya Pandhre , Shagun Sodhani

Question Answering (QA) over Knowledge Base (KB) aims to automatically answer natural language questions via well-structured relation information between entities stored in knowledge bases. In order to make KBQA more applicable in actual…

Computation and Language · Computer Science 2020-07-28 Bin Fu , Yunqi Qiu , Chengguang Tang , Yang Li , Haiyang Yu , Jian Sun