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Authors: Alysson Gomes de Sousa 1 ; Dalai Dos Santos Ribeiro 1 ; Rômulo César Costa de Sousa 1 ; Ariane Moraes Bueno Rodrigues 1 ; Pedro Henrique Thompson Furtado 2 ; Simone Diniz Junqueira Barbosa 1 and Hélio Lopes 1

Affiliations: 1 Department of Informatics, PUC-Rio, Brazil ; 2 CENPES - PETROBRAS, Brazil

Keyword(s): Ontology, Knowledge Base, Data-driven Search, Progressive Disclosure, Question Answering.

Abstract: Many systems try to convert a request in natural language into a structured query, but formulating a good query can be cognitively challenging for users. We propose an ontology-based approach to answer questions in natural language about facts stored in a knowledge base, and answer them through data visualizations. To bridge the gap between the user intention and the expression of their query in natural language, our approach enriches the set of answers by generating related questions, allowing the discovery of new information. We apply our approach to the Movies and TV Series domain and with queries and answers in Portuguese. To validate our natural language search engine, we have built a dataset of questions in Portuguese to measure precision, recall, and f-score. To evaluate the method to enrich the answers we conducted a questionnaire-based study to measure the users’ preferences about the recommended questions. Finally, we conducted an experimental user study to evaluate the del ivery mechanism of our proposal. (More)

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Paper citation in several formats:
de Sousa, A.; Ribeiro, D.; Costa de Sousa, R.; Rodrigues, A.; Furtado, P.; Barbosa, S. and Lopes, H. (2020). Using a Domain Ontology to Bridge the Gap between User Intention and Expression in Natural Language Queries. In Proceedings of the 22nd International Conference on Enterprise Information Systems - Volume 1: ICEIS; ISBN 978-989-758-423-7; ISSN 2184-4992, SciTePress, pages 751-758. DOI: 10.5220/0009412307510758

@conference{iceis20,
author={Alysson Gomes {de Sousa}. and Dalai Dos Santos Ribeiro. and Rômulo César {Costa de Sousa}. and Ariane Moraes Bueno Rodrigues. and Pedro Henrique Thompson Furtado. and Simone Diniz Junqueira Barbosa. and Hélio Lopes.},
title={Using a Domain Ontology to Bridge the Gap between User Intention and Expression in Natural Language Queries},
booktitle={Proceedings of the 22nd International Conference on Enterprise Information Systems - Volume 1: ICEIS},
year={2020},
pages={751-758},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0009412307510758},
isbn={978-989-758-423-7},
issn={2184-4992},
}

TY - CONF

JO - Proceedings of the 22nd International Conference on Enterprise Information Systems - Volume 1: ICEIS
TI - Using a Domain Ontology to Bridge the Gap between User Intention and Expression in Natural Language Queries
SN - 978-989-758-423-7
IS - 2184-4992
AU - de Sousa, A.
AU - Ribeiro, D.
AU - Costa de Sousa, R.
AU - Rodrigues, A.
AU - Furtado, P.
AU - Barbosa, S.
AU - Lopes, H.
PY - 2020
SP - 751
EP - 758
DO - 10.5220/0009412307510758
PB - SciTePress

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