Defesa de dissertação de mestrado de pesquisador do GMAP

Na quarta-feira passada, dia 31 de março, Cleverson Lopes Ledur (pesquisador do GMAP), defendeu sua dissertação de mestrado, na Faculdade de Informática da Pontifícia Universidade Católica do Rio grande do Sul.

A defesa foi realizada na sala 502 do prédio 32 as 17h30.


A seguir, o título e resumo da dissertação:


Título: GMaVis: A Domain-Specific Language for Large-Scale Geospatial Data Visualization Supporting Multi-core Parallelism

Resumo: Data production has increased in recent years due to the popularization of technology. At the same time, information visualization enables the extraction of knowledge and useful information through data representation with graphic elements. Moreover, a set of visualization techniques may help people in information perception, such as patterns and anomalies on data. It provides many benefits, however, the information visualization creation is a hard task for users with a low knowledge in computer programming. It becomes more difficult when these users have to deal with big data files since most tools do not provide features to abstract data preprocessing. In order to bridge this gap, we proposed GMaVis. It is a domain-specific language (DSL) that offers a high-level description language for creating geospatial data visualizations through a parallel data preprocessor and a high-level description language. GMaVis was evaluated using two approaches. First we performed a programming effort analysis, using an analytical software to estimate development effort based on the code. This evaluation demonstrates a high gain in productivity when compared with programming effort required by Google Maps API, Leaflet, and OpenLayers. Also, a performance evaluation was conducted in parallel data preprocessor, which demonstrated a performance gain when compared with the sequential version.

Orientador: Prof. Dr. Luiz Gustavo Leão Fernandes 
Coorientadora: Profa. Dra. Isabel Harb Manssour(PPGCC/PUCRS) 
Banca Examinadora: Prof. Dr. Avelino Francisco Zorzo (PPGCC/PUCRS), Prof. Dr. Marco Danelutto ( University of Pisa) e Profa. Dra. Carla Maria Dal Sasso Freitas (UFRGS).



Foto tirada após a defesa de dissertação do aluno Cleverson Ledur.
Na foto,
Prof. Dr. Marco Danelutto, aluno Cleverson Ledur, Profa. Dra. Carla Maria Dal Sasso Freitas,
Prof. Dr. Luiz Gustavo Leão Fernandes
e Profa. Dra. Isabel Harb Manssour


O aluno obteve aprovação.

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