Normalized Google Distance in the identification and characterization of health queries

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2019

Autores

Carla Teixeira Lopes (Autor) FEUP; Diogo Moura (Autor) Outra

Ata de Conferência Internacional

Título: Iberian Conference on Information Systems and Technologies, CISTI

Páginas: 1-4

14th Iberian Conference on Information Systems and Technologies, CISTI 2019

19 June 2019 through 22 June 2019

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 1 Citação

Outras Informações

ID Authenticus: P-00Q-XPE

DOI: 10.23919/cisti.2019.8760964

Abstract (EN): Classifying web queries into a set of categories is a crucial task to better understand the user's intent behind a query, contextualize their search and provide more relevant results to the user. However, web queries are typically short and ambiguous making the query classification a non-trivial problem. In this article, we present a new automatic approach for identifying and characterizing queries in the health domain. This method makes use of the search engine counts through a semantic similarity measure called Normalized Google Distance (NGD) combined with Support Vector Machines to classify queries into three dimensions: health-related, severity and semantic type. To evaluate our methods, we used two datasets in different languages, Portuguese and English, and built another for evaluating the last dimension. Overall, the results achieved were satisfactory. The most generic classification obtains better results than more specific ones. The NGD proved to be a valuable assent in query classification.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4