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The usage and amount of information available on the internet increase over the past decade. This digitization leads to the need for automated answering system to extract fruitful information from redundant and transitional knowledge…

Computation and Language · Computer Science 2022-02-03 Hariom A. Pandya , Brijesh S. Bhatt

This paper introduces a new framework for open-domain question answering in which the retriever and the reader iteratively interact with each other. The framework is agnostic to the architecture of the machine reading model, only requiring…

Computation and Language · Computer Science 2019-05-15 Rajarshi Das , Shehzaad Dhuliawala , Manzil Zaheer , Andrew McCallum

With the rise in mobile and voice search, answer passage retrieval acts as a critical component of an effective information retrieval system for open domain question answering. Currently, there are no comparable collections that address…

Information Retrieval · Computer Science 2018-05-11 Daniel Cohen , Liu Yang , W. Bruce Croft

Question answering has emerged as an intuitive way of querying structured data sources, and has attracted significant advancements over the years. In this article, we provide an overview over these recent advancements, focusing on neural…

Computation and Language · Computer Science 2019-07-23 Nilesh Chakraborty , Denis Lukovnikov , Gaurav Maheshwari , Priyansh Trivedi , Jens Lehmann , Asja Fischer

In recent years, there have been amazing advances in deep learning methods for machine reading. In machine reading, the machine reader has to extract the answer from the given ground truth paragraph. Recently, the state-of-the-art machine…

Computation and Language · Computer Science 2018-04-13 Phu Mon Htut , Samuel R. Bowman , Kyunghyun Cho

Reading long documents to answer open-domain questions remains challenging in natural language understanding. In this paper, we introduce a new model, called RikiNet, which reads Wikipedia pages for natural question answering. RikiNet…

Computation and Language · Computer Science 2020-05-01 Dayiheng Liu , Yeyun Gong , Jie Fu , Yu Yan , Jiusheng Chen , Daxin Jiang , Jiancheng Lv , Nan Duan

Question answering (QA) is an important natural language processing (NLP) task and has received much attention in academic research and industry communities. Existing QA studies assume that questions are raised by humans and answers are…

Computation and Language · Computer Science 2019-01-15 Qing Yin , Guan Luo , Xiaodong Zhu , Qinghua Hu , Ou Wu

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

Open domain conversational agents can answer a broad range of targeted queries. However, the sequential nature of interaction with these systems makes knowledge exploration a lengthy task which burdens the user with asking a chain of well…

Computation and Language · Computer Science 2023-02-23 Christopher Richardson , Sudipta Kar , Anjishnu Kumar , Anand Ramachandran , Omar Zia Khan , Zeynab Raeesy , Abhinav Sethy

Answering questions that require multi-hop reasoning at web-scale necessitates retrieving multiple evidence documents, one of which often has little lexical or semantic relationship to the question. This paper introduces a new graph-based…

Computation and Language · Computer Science 2020-02-17 Akari Asai , Kazuma Hashimoto , Hannaneh Hajishirzi , Richard Socher , Caiming Xiong

The Natural Questions (NQ) benchmark set brings new challenges to Machine Reading Comprehension: the answers are not only at different levels of granularity (long and short), but also of richer types (including no-answer, yes/no,…

Computation and Language · Computer Science 2020-09-30 Xuguang Wang , Linjun Shou , Ming Gong , Nan Duan , Daxin Jiang

This work addresses the problem of Question Answering (QA) on handwritten document collections. Unlike typical QA and Visual Question Answering (VQA) formulations where the answer is a short text, we aim to locate a document snippet where…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Minesh Mathew , Lluis Gomez , Dimosthenis Karatzas , CV Jawahar

With the rapid growth of knowledge bases (KBs), question answering over knowledge base, a.k.a. KBQA has drawn huge attention in recent years. Most of the existing KBQA methods follow so called encoder-compare framework. They map the…

Computation and Language · Computer Science 2018-05-29 Yingqi Qu , Jie Liu , Liangyi Kang , Qinfeng Shi , Dan Ye

The vast majority of cybersecurity information is unstructured text, including critical data within databases such as CVE, NVD, CWE, CAPEC, and the MITRE ATT&CK Framework. These databases are invaluable for analyzing attack patterns and…

Cryptography and Security · Computer Science 2024-12-24 Tanjim Bin Faruk

We propose a novel open-domain question answering (ODQA) framework for answering single/multi-hop questions across heterogeneous knowledge sources. The key novelty of our method is the introduction of the intermediary modules into the…

Computation and Language · Computer Science 2022-10-25 Kaixin Ma , Hao Cheng , Xiaodong Liu , Eric Nyberg , Jianfeng Gao

The dependency between an adequate question formulation and correct answer selection is a very intriguing but still underexplored area. In this paper, we show that question rewriting (QR) of the conversational context allows to shed more…

Computation and Language · Computer Science 2022-02-04 Svitlana Vakulenko , Shayne Longpre , Zhucheng Tu , Raviteja Anantha

Existing approaches for open-domain question answering (QA) are typically designed for questions that require either single-hop or multi-hop reasoning, which make strong assumptions of the complexity of questions to be answered. Also,…

Computation and Language · Computer Science 2021-05-25 Ping Nie , Yuyu Zhang , Arun Ramamurthy , Le Song

This paper proposes a novel neural machine reading model for open-domain question answering at scale. Existing machine comprehension models typically assume that a short piece of relevant text containing answers is already identified and…

Computation and Language · Computer Science 2017-10-06 Bin Bi , Hao Ma

Knowledge discovery is defined as non-trivial extraction of implicit, previously unknown and potentially useful information from given data. Knowledge extraction from web documents deals with unstructured, free-format documents whose number…

Neural and Evolutionary Computing · Computer Science 2007-05-23 Vitaly Schetinin

When answering natural language questions over knowledge bases (KBs), different question components and KB aspects play different roles. However, most existing embedding-based methods for knowledge base question answering (KBQA) ignore the…

Computation and Language · Computer Science 2019-05-30 Yu Chen , Lingfei Wu , Mohammed J. Zaki