2,051 Hits in 3.4 sec

A question-entailment approach to question answering

Asma Ben Abacha, Dina Demner-Fushman
2019 BMC Bioinformatics  
Results: We propose a novel QA approach based on Recognizing Question Entailment (RQE) and we describe the QA system and resources that we built and evaluated on real medical questions.  ...  Second, we combine IR models with the best RQE method to select entailed questions and rank the retrieved answers.  ...  Shooshan (NLM/NIH) for her help with the judgment of the retrieved answers, and Ellen Voorhees (NIST) for her help with the TREC LiveQA evaluation.  ... 
doi:10.1186/s12859-019-3119-4 fatcat:ztrn5jaiwjdizmicuscn466ghq

A Question-Entailment Approach to Question Answering [article]

Asma Ben Abacha, Dina Demner-Fushman
2019 arXiv   pre-print
In this paper, we propose a novel QA approach based on Recognizing Question Entailment (RQE) and we describe the QA system and resources that we built and evaluated on real medical questions.  ...  Second, we combine IR models with the best RQE method to select entailed questions and rank the retrieved answers.  ...  The hybrid IR+RQE QA system achieved better results than the IR-based system with 0.827 average score.  ... 
arXiv:1901.08079v1 fatcat:kwtxhoxuvnbovgxve33vb4d6b4

Semantics question analysis model for question answering system

Syarilla I. Ahmad Saany, Ali Mamat, Aida Mustapha, Lilly S. Affendey, M. Nordin A. Rahman
2015 Applied Mathematical Sciences  
Question Answering (QA) system takes Natural Language (NL) questions and output the exact answer extracted from Knowledge Base (KB).  ...  To measure the ability of Semantic Question Analysis Model in analysing and translating user NL question, the model is implemented in an ontology-based question answering system (known as QAUF).  ...  Introduction Question answering (QA) resides within Information Retrieval (IR) and Natural Language Processing (NLP) research areas.  ... 
doi:10.12988/ams.2015.54361 fatcat:3r6puad2o5cipdf7v7qgyattdu

Photo-based question answering

Tom Yeh, John J. Lee, Trevor Darrell
2008 Proceeding of the 16th ACM international conference on Multimedia - MM '08  
The second, information retrieval QA layer searches an internal repository of resolved photo-based questions to retrieve relevant answers.  ...  Current question answering (QA) systems are text-based and can be difficult to use when a question involves an object with distinct visual features.  ...  We proposed a three-layer system architecture based on template-based, IR-based, and human-based QA (Section 4).  ... 
doi:10.1145/1459359.1459412 dblp:conf/mm/YehLD08 fatcat:r3kdnvhq7bcqnp3xbcl5bbdwta

Question Expansion in a Question-Answering System in a Closed-Domain System

Haniel G. Cavalcante, Jéferson N. Soares, José E.B. Maia
2021 International Journal of Computer Applications  
A great challenge in Information Retrieval Systems (IRS) is to extract the information intention of the user from a command line interface query, so it can recover relevant documents.  ...  This problem gets worse in Question-Answering Systems (QAS) in a Closed Domain, for in this scenario, there's a higher divergence between the open language available for the user to elaborate questions  ...  Query Expansion In an IR-based QA system a question must be reformulated and turned into a query to the knowledge base.  ... 
doi:10.5120/ijca2021921621 fatcat:wnu6sq2mmvc6jcjwq6bshehdtu

A Review of Question Answering Systems

Bolanle Ojokoh, Emmanuel Adebisi
2019 Journal of Web Engineering  
Hence, in this paper, we take a short study of the generic QA framework vis a vis Question Analysis, Passage Retrieval and Answer Extraction and some important issues associated with QA systems.  ...  Finally, we classify QA systems based on some identified criteria in literature.  ...  On the basis of Data source, a review of QA systems classification is done in terms of three further categories: i. Information Retrieval based (IR-based) Question Answering System ii.  ... 
doi:10.13052/jwe1540-9589.1785 fatcat:g4bbctufvjd6fkijclxd5rnth4


Maria Vijoy, Sangeetha Jamal.
2016 International Journal of Advanced Research  
Web based question answering system, 2. IR/IE based question answering system, 3. Restricted domain question answering system, 4.Rule based question answering system.  ...  IR/IE use information retrieval technology to retrieve exact answer after processing the document.  ...  Using Semantic based QA system will reduce answering repeated questions and it will helps from huge resource wastage.  ... 
doi:10.21474/ijar01/1303 fatcat:yat4xswhgvbcxilqglecuxjuwy

Question Answering over Curated and Open Web Sources [article]

Rishiraj Saha Roy, Avishek Anand
2020 arXiv   pre-print
Other key dimensions are covered within each sub-topic: like the complexity of questions addressed, and degrees of explainability and interactivity introduced in the systems.  ...  The last few years have seen an explosion of research on the topic of automated question answering (QA), spanning the communities of information retrieval, natural language processing, and artificial intelligence  ...  ACM ISBN 978-x-xxxx-xxxx-x/YY/MM. automated QA systems in the last three to four years coming from the perspectives of information retrieval (IR) and natural language  ... 
arXiv:2004.11980v3 fatcat:bavyc2xlrbazrphxhhgzzeitrq

A Rule-Based Approach to Understand Questions in Arabic Question Answering

Emad AlShawakfa
2016 Jordanian Journal of Computers and Information Technology  
A QA system was built and experiments showed good results with an accuracy of 78%, a recall of 97% and an F-Measure of 87%.  ...  In this research, a set of 60+ tagging rules, 15+ Question Analysis rules and 20+ Question Patterns were built to enhance the answer generation of Natural Language Questions posed over some corpora collected  ...  An Arabic QA system (QAS) to answer short Factoid questions in Arabic was described by [26] .  ... 
doi:10.5455/jjcit.71-1467325836 fatcat:2dqe7gz5hndpblxhstyin4p7lm

On the Voice-Activated Question Answering

Paolo Rosso, Lluís-F. Hurtado, Encarna Segarra, Emilio Sanchis
2012 IEEE Transactions on Systems Man and Cybernetics Part C (Applications and Reviews)  
The incorporation of voice interfaces to Question Answering systems adds a more natural and very appealing perspective for these systems.  ...  This paper provides a comprehensive description of current state-of-the-art Voiceactivated Question Answering systems.  ...  Most QA systems are based on IR methods that have been adapted to work on passages instead of the whole document [43] , [8] , [61] , [48] .  ... 
doi:10.1109/tsmcc.2010.2089620 fatcat:tirmodeurbg7rkok6juj7zdet4

A Survey of Natural Language Question Answering System

Unmesh Sasikumar, Sindhu L
2014 International Journal of Computer Applications  
In Question answering (QA) system retrieves the precise information from large documents according to user query.  ...  This survey paper describe the different methods of natural language question answering system (NLQA) for general languages.QA System automatically retrieve correct responses to the question asked by the  ...  The concepts behind QA system are to help and improve user-system interaction.  ... 
doi:10.5120/18991-0444 fatcat:gnb2wugdfbacbbkosy2dy7teau

Investigating Embedded Question Reuse in Question Answering

M. Mansoori
2013 International Journal of Engineering  
The named entities will then be used as significant terms in the query generation phase of the QA system to retrieve more pertinent answers.  ...  The investigation presented in this paper is a novel method in question answering (QA) that enables a QA system to gain performance through reuse of information in the answer to one question to answer  ...  QA is a paradigm in the field of Information Retrieval (IR) and Information Extraction (IE). Many of the questions in the archive of a QA system follow a common context and are closely related.  ... 
doi:10.5829/idosi.ije.2013.26.03c.04 fatcat:t7mngev7qfa3lkolejvb26qd5i

A Survey of Text Question Answering Techniques

Poonam Gupta, Vishal Gupta
2012 International Journal of Computer Applications  
Question classification play primary role in QA system to categorize the question based upon on the type of its entity.  ...  Question Answering (QA) is a specific type of information retrieval.  ...  Rule Based Question Answering Systems The rule based QA system is an extended form for IR based QA system. Rule Based QA doesn't use deep language understanding or specific sophisticated approaches.  ... 
doi:10.5120/8406-2030 fatcat:pzhcq4v44rhltjsnesw7cqan24

Evaluating Passage Retrieval Approaches for Question Answering [chapter]

Ian Roberts, Robert Gaizauskas
2004 Lecture Notes in Computer Science  
Many QA systems have been developed and most follow the same broad pattern of operation: first an information retrieval (IR) system, often passage-based, is used to find passages from a large document  ...  Automatic open domain question answering (QA) has been the focus of much recent research, stimulated by the introduction of a QA track in TREC in 1999.  ...  However, S 1 when coupled to an answer extraction component of a QA system could answer at most one question correctly, while the S 2 -based system could potentially answer all 100 questions correctly.  ... 
doi:10.1007/978-3-540-24752-4_6 fatcat:l2de4l73lzhidmenemnwcx2buq

Retrieving and Reading: A Comprehensive Survey on Open-domain Question Answering [article]

Fengbin Zhu, Wenqiang Lei, Chao Wang, Jianming Zheng, Soujanya Poria, Tat-Seng Chua
2021 arXiv   pre-print
Open-domain Question Answering (OpenQA) is an important task in Natural Language Processing (NLP), which aims to answer a question in the form of natural language based on large-scale unstructured documents  ...  While these research works have advanced performance to new heights on benchmark datasets, they have been rarely covered in existing surveys on QA systems.  ...  Representation-interaction Retriever: In order to achieve both high accuracy and efficiency, some recent systems [17] , [82] , [83] combine representation-based and interaction-based methods.  ... 
arXiv:2101.00774v3 fatcat:6evkg5cikjdp5fsi3ou3iqqkyq
« Previous Showing results 1 — 15 out of 2,051 results