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Towards Entailment-Based Question Answering: ITC-irst at CLEF 2006 [chapter]

Milen Kouylekov, Matteo Negri, Bernardo Magnini, Bonaventura Coppola
2007 Lecture Notes in Computer Science  
The participation in the AVE task, with an answer validation module based on textual entailment recognition, is motivated by our objectives of (i) creating a modular framework for an entailment-based approach  ...  to QA, and (ii) developing, in compliance with this framework, a stand-alone component for answer validation which implements different approaches to the problem.  ...  Adhering to this perspective, the objective of the research on entailment-based QA aims at creating a stand-alone package for Answer Validation (AV), which implements different strategies to select the  ... 
doi:10.1007/978-3-540-74999-8_64 fatcat:pjmrgp7ccfezrb4gtbmw7q5d64

Survey on Answer Validation for Indonesian Question Answering System (IQAS)

Abdiansah Abdiansah, Azhari Azhari, Anny K. Sari
2018 International Journal of Intelligent Systems and Applications  
One of the important issues in IQAS is Answer Validation (AV), which is a system that can determine the correctness of QAS.  ...  Research on Question Answering System (QAS) has been done mainly in English.  ...  The second objective was to bring systems based on Textual Entailment to the Automatic Hypothesis Generation problem which was not part itself of the Recognizing Textual Entailment (RTE) task but a need  ... 
doi:10.5815/ijisa.2018.04.08 fatcat:r3r6tygg5nawzkgkwj7jh42ele

Towards an Automatic Validation of Answers in Question Answering

Anne-Laure Ligozat, Brigitte Grau, Anne Vilnat, Isabelle Robba, Arnaud Grappy
2007 19th IEEE International Conference on Tools with Artificial Intelligence(ICTAI 2007)  
The objective of an Answer Validation task is thus to judge the correctness of an answer returned by a QA system for a question, according to the text snippet given to support it.  ...  In this article, we present our strategy for deciding if the snippets justify the answers: a strategy based on our own QA system, comparing the answers it returned with the answer to judge.  ...  This task is close to the task named AVE (Answer Validation Exercise 2 ) introduced at QA@CLEF 3 in 2006.  ... 
doi:10.1109/ictai.2007.156 dblp:conf/ictai/LigozatGVRG07 fatcat:3j5og47bljgevk2xgdujlrcvre

Selecting Answers to Questions from Web Documents by a Robust Validation Process

A. Grappy, B. Grau, M-H. Falco, A-L. Ligozat, I. Robba, A. Vilnat
2011 2011 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology  
The validation module is based on a machine learning approach.  ...  We developed a QA system based on an answer validation process able to handle Web specificity.  ...  RELATED WORK The task of answer validation (AVE) [9] at CLEF was dedicated to validate answers to questions in relation with a justification passage, both provided by QA systems.  ... 
doi:10.1109/wi-iat.2011.210 dblp:conf/webi/GrappyGFLRV11 fatcat:7jdppenkfve6nj3ibua6dqfgtu

Lexical validation of answers in Question Answering

Anne-Laure Ligozat, Brigitte Grau, Anne Vilnat, Isabelle Robba, Arnaud Grappy
2007 IEEE/WIC/ACM International Conference on Web Intelligence (WI'07)  
The objective of an Answer Validation task is to estimate the correctness of an answer returned by a QA system for a question, according to the text snippet given to support it.  ...  Question answering (QA) aims at retrieving precise information from a large collection of documents, typically the Web.  ...  Answer validation In 2006, an Answer Validation Exercise (AVE) 1 was introduced in the evaluation campaign CLEF, which aimed 1 http://nlp.uned.es/QA/AVE/ at automatically validating the correctness of  ... 
doi:10.1109/wi.2007.97 dblp:conf/webi/LigozatGVRG07 fatcat:vdxsvdnqcvbanooelxhb2na77e

QA4MRE 2011-2013: Overview of Question Answering for Machine Reading Evaluation [chapter]

Anselmo Peñas, Eduard Hovy, Pamela Forner, Álvaro Rodrigo, Richard Sutcliffe, Roser Morante
2013 Lecture Notes in Computer Science  
This was the attempt of the QA4MRE challenge which was run as a Lab at CLEF 2011-2013.  ...  The traditional QA task was replaced by a new Machine Reading task, whose intention was to ask questions that required a deep knowledge of individual short texts and in which systems were required to choose  ...  Anselmo Peñas and Álvaro Rodrigo have been partially supported by the Research Network MA2VICMR (S2009/TIC-1542) and READERS project (CHIST-ERA).  ... 
doi:10.1007/978-3-642-40802-1_29 fatcat:5p2elqqoxzawfk3s54qzdiwsmq

Answer Validation on English and Romanian Languages [chapter]

Adrian Iftene, Alexandra Balahur
2009 Lecture Notes in Computer Science  
Introduction AVE 1 (Answer Validation Exercise) is a task introduced in the QA@CLEF competition, with the aim of promoting the development and evaluation of subsystems validating the correctness of the  ...  In this year's AVE competition we also participated with a system working in Romanian, using a Textual Entailment (TE) system working on Romanian.  ...  Textual Entailment System The main architecture of our Textual Entailment system remains the same (Iftene, Balahur-Dobrescu, 2007a) .  ... 
doi:10.1007/978-3-642-04447-2_53 fatcat:niv3ttgwmzdp5ovz2quowyfowm

Automatic Semantic Analysis for NLP Applications

Ingo Glückner, Sven Hartrumpf, Hermann Helbig, Johannes Leveling, Rainer Osswald
2007 Zeitschrift für Sprachwissenschaft  
AbstractIn this article, we describe a long-term enterprise at the FernUniversität in Hagen to develop systems for the automatic semantic analysis of natural language.  ...  We introduce the underlying semantic framework and give an overview of several recent activities and projects covering natural language interfaces to information providers on the web, automatic knowledge  ...  In the QA tracks at CLEF 2004 CLEF , 2005 CLEF , and 2006 , InSicht was one of the best German QA systems.  ... 
doi:10.1515/zfs.2007.019 fatcat:kkrm6ssqzjbxnbqrr7sggqrdie

Techniques for Recognizing Textual Entailment and Semantic Equivalence [chapter]

Jesús Herrera, Anselmo Peñas, Felisa Verdejo
2006 Lecture Notes in Computer Science  
A compilation of the currently implemented techniques in the main Recognizing Textual Entailment and Semantic Equivalence systems is given.  ...  After defining what is understood by textual entailment and semantic equivalence, the present state and the desirable future of the systems aimed at recognizing them is shown.  ...  Acknowledgments This work has been partially supported by the Spanish Ministry of Science and Technology. Project TIC-2003-07158-C04-02: R2D2-SyEMBRA.  ... 
doi:10.1007/11881216_44 fatcat:x2jutqmtivfthcrhv6nntu6avi

Web 2.0, Language Resources and standards to automatically build a multilingual Named Entity Lexicon

Antonio Toral, Sergio Ferrández, Monica Monachini, Rafael Muñoz
2011 Language Resources and Evaluation  
Finally, in order to check the usefulness of the constructed resource, we apply it into a state-of-the-art Question Answering system and evaluate its impact; the NE lexicon improves the system's accuracy  ...  Compared to previous approaches to build NE repositories, the current proposal represents a step forward in terms of automation, language independence, amount of NEs acquired and richness of the information  ...  Table 12 12 Example of the Validation module in QA Question 072 at CLEF 2006: Who is the General Secretary of Interpol?  ... 
doi:10.1007/s10579-011-9148-x fatcat:4mgqrfve2vdpxbxr2ms3gdyshu

BulQA: Bulgarian–Bulgarian Question Answering at CLEF 2005 [chapter]

Kiril Simov, Petya Osenova
2006 Lecture Notes in Computer Science  
At present these grammars can be viewed as patterns for the type of questions, but our goal is to develop them further into a deeper parsing system for Bulgarian.  ...  This paper describes the architecture of a Bulgarian-Bulgarian question answering system -BulQA. The system relies on a partially parsed corpus for answer extraction.  ...  Thus, for about one third of the questions the answer NIL was stated without a real application of the system. Our plans for future work are to build on our experience from CLEF 2005 participation.  ... 
doi:10.1007/11878773_58 fatcat:igglae3c3bhxle6gt4cvmtx2cu

Decomposing Semantic Inferences

Elena Cabrio, Bernardo Magnini
2014 Linguistic Issues in Language Technology  
Beside formal approaches to semantic inference that rely on logical representation of meaning, the notion of Textual Entailment (TE) has been proposed as an applied framework to capture major semantic  ...  We propose a decomposition approach over TE pairs, where single linguistic phenomena are isolated in what we have called atomic inference pairs, and we show that at this granularity level the actual correlation  ...  Acknowledgments The work of the second author has been partially supported by the EX-CITEMENT project (Exploring Customer Interactions through Textual Entailment), under the EU grant FP7 ICT-287923.  ... 
doi:10.33011/lilt.v9i.1319 fatcat:bhmnv2kfozd2pj6dprwtn5base

A Survey on Legal Question Answering Systems [article]

Jorge Martinez-Gil
2021 arXiv   pre-print
This is mainly because a Question Answering system could be able to automatically process a massive amount of legal resources to answer a question or doubt in seconds, which means that it could save resources  ...  The degree of usefulness is such that even a semi-automatic solution could significantly help to reduce the workload to be faced.  ...  of Upper Austria in the frame of the COMET center SCCH.  ... 
arXiv:2110.07333v1 fatcat:a3pgndtdrnemxortichxztfaoy

Linguistic and semantic passage retrieval strategies for question answering

Matthew W. Bilotti
2011 SIGIR Forum  
The two approaches are shown to retrieve more answer-bearing text, more highly ranked, compared to a bag-of-words baseline for two different QA tasks.  ...  Question Answering (QA) is the task of searching a large text collection for specific answers to questions posed in natural language.  ...  The technique could easily be applied to other appropriate tasks, such as Recognizing Textual Entailment [15] .  ... 
doi:10.1145/1924475.1924495 fatcat:cbzirz6ua5bpnndsn4zs7zx5uy

Is Question Answering fit for the Semantic Web?: A survey

Vanessa Lopez, Victoria Uren, Marta Sabou, Enrico Motta
2011 Semantic Web Journal  
We present a survey on ontology-based Question Answering (QA), which has emerged in recent years to exploit the opportunities offered by structured semantic information on the Web.  ...  developed in the 70s and later decades, through open domain QA stimulated by the QA track in TREC since 1999, to the latest commercial semantic QA solutions, before tacking the current state of the art  ...  Acknowledgments Research funded under the Smart-Products European project (EC-231204).  ... 
doi:10.3233/sw-2011-0041 fatcat:ub7ja3qgzvcjrgeqdfk3g7huwa
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