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When answering a question, people often draw upon their rich world knowledge in addition to the particular context. Recent work has focused primarily on answering questions given some relevant document or context, and required very little…

Computation and Language · Computer Science 2019-03-19 Alon Talmor , Jonathan Herzig , Nicholas Lourie , Jonathan Berant

Question Answering (QA) has shown great success thanks to the availability of large-scale datasets and the effectiveness of neural models. Recent research works have attempted to extend these successes to the settings with few or no labeled…

Computation and Language · Computer Science 2020-05-07 Zhongli Li , Wenhui Wang , Li Dong , Furu Wei , Ke Xu

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

Objective: Question answering (QA) systems have the potential to improve the quality of clinical care by providing health professionals with the latest and most relevant evidence. However, QA systems have not been widely adopted. This…

Computation and Language · Computer Science 2024-02-06 Gregory Kell , Angus Roberts , Serge Umansky , Linglong Qian , Davide Ferrari , Frank Soboczenski , Byron Wallace , Nikhil Patel , Iain J Marshall

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

Visual Question Answering (VQA) systems are tasked with answering natural language questions corresponding to a presented image. Traditional VQA datasets typically contain questions related to the spatial information of objects, object…

Computation and Language · Computer Science 2020-06-05 Goonmeet Bajaj , Bortik Bandyopadhyay , Daniel Schmidt , Pranav Maneriker , Christopher Myers , Srinivasan Parthasarathy

Existing Knowledge Base Question Answering (KBQA) architectures are hungry for annotated data, which make them costly and time-consuming to deploy. We introduce the problem of few-shot transfer learning for KBQA, where the target domain…

Computation and Language · Computer Science 2024-06-14 Mayur Patidar , Riya Sawhney , Avinash Singh , Biswajit Chatterjee , Mausam , Indrajit Bhattacharya

Open book question answering is a type of natural language based QA (NLQA) where questions are expected to be answered with respect to a given set of open book facts, and common knowledge about a topic. Recently a challenge involving such…

Computation and Language · Computer Science 2019-07-26 Pratyay Banerjee , Kuntal Kumar Pal , Arindam Mitra , Chitta Baral

Question Answering (QA) systems provide easy access to the vast amount of knowledge without having to know the underlying complex structure of the knowledge. The research community has provided ad hoc solutions to the key QA tasks,…

Computation and Language · Computer Science 2019-06-11 Somayeh Asadifar , Mohsen Kahani , Saeedeh Shekarpour

Community Question Answering (CQA) websites can be claimed as the most major venues for knowledge sharing, and the most effective way of exchanging knowledge at present. Considering that massive amount of users are participating online and…

Information Retrieval · Computer Science 2018-10-29 Chaoran Huang , Lina Yao , Xianzhi Wang , Boualem Benatallah , Xiang Zhang

We present assertion based question answering (ABQA), an open domain question answering task that takes a question and a passage as inputs, and outputs a semi-structured assertion consisting of a subject, a predicate and a list of…

Computation and Language · Computer Science 2018-01-24 Zhao Yan , Duyu Tang , Nan Duan , Shujie Liu , Wendi Wang , Daxin Jiang , Ming Zhou , Zhoujun Li

Question answering (QA) systems are sensitive to the many different ways natural language expresses the same information need. In this paper we turn to paraphrases as a means of capturing this knowledge and present a general framework which…

Computation and Language · Computer Science 2017-08-22 Li Dong , Jonathan Mallinson , Siva Reddy , Mirella Lapata

Given an image and an associated textual question, the purpose of Knowledge-Based Visual Question Answering (KB-VQA) is to provide a correct answer to the question with the aid of external knowledge bases. Prior KB-VQA models are usually…

Machine Learning · Computer Science 2023-10-13 Jingru Gan , Xinzhe Han , Shuhui Wang , Qingming Huang

Language models (LMs) have already demonstrated remarkable abilities in understanding and generating both natural and formal language. Despite these advances, their integration with real-world environments such as large-scale knowledge…

Computation and Language · Computer Science 2024-02-12 Yiheng Shu , Zhiwei Yu

Question answering over temporal knowledge graphs (TKGQA) has recently found increasing interest. TKGQA requires temporal reasoning techniques to extract the relevant information from temporal knowledge bases. The only existing TKGQA…

Artificial Intelligence · Computer Science 2023-07-21 Zifeng Ding , Zongyue Li , Ruoxia Qi , Jingpei Wu , Bailan He , Yunpu Ma , Zhao Meng , Shuo Chen , Ruotong Liao , Zhen Han , Volker Tresp

Multimodal search-based dialogue is a challenging new task: It extends visually grounded question answering systems into multi-turn conversations with access to an external database. We address this new challenge by learning a neural…

Computation and Language · Computer Science 2018-11-22 Shubham Agarwal , Ondrej Dusek , Ioannis Konstas , Verena Rieser

We study open-domain question answering with structured, unstructured and semi-structured knowledge sources, including text, tables, lists and knowledge bases. Departing from prior work, we propose a unifying approach that homogenizes all…

Computation and Language · Computer Science 2022-05-05 Barlas Oguz , Xilun Chen , Vladimir Karpukhin , Stan Peshterliev , Dmytro Okhonko , Michael Schlichtkrull , Sonal Gupta , Yashar Mehdad , Scott Yih

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

Question answering over knowledge bases (KB-QA) poses challenges in handling complex questions that need to be decomposed into sub-questions. An important case, addressed here, is that of temporal questions, where cues for temporal…

Information Retrieval · Computer Science 2021-01-26 Zhen Jia , Abdalghani Abujabal , Rishiraj Saha Roy , Jannik Stroetgen , Gerhard Weikum

Existing Scholarly Question Answering (QA) methods typically target homogeneous data sources, relying solely on either text or Knowledge Graphs (KGs). However, scholarly information often spans heterogeneous sources, necessitating the…

Computation and Language · Computer Science 2024-12-06 Tilahun Abedissa Taffa , Debayan Banerjee , Yaregal Assabie , Ricardo Usbeck