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Title: Visualization and analysis of geographic information: algorithms and data structures
Authors: Valença, João dos Santos 
Orientador: Paquete, Luís Filipe dos Santos Coelho
Keywords: Geographic Clustering; Computational Geometry Algorithms; Coverage Problems; Real-Time Applications
Issue Date: 13-Jul-2015
Serial title, monograph or event: Visualization and analysis of geographic information: algorithms and data structures
Place of publication or event: Coimbra
Abstract: In recent years, Geographic Information Systems have witnessed a large increase in data availability. There is a need to process a large amount of data before it can be managed and analysed. This project aims to develop an application operating through a Web platform in order to allow for a low cost and simpli ed integration, management and manipulation of georeferenced information. Special emphasis is given to the implementation of e cient clustering algorithms for nding a representative set of points in a map. In the thesis, this representation problem is formulated as two classic optimisation problems: the k-center and the geometric disk cover. The approaches covered in this thesis include exact algorithms for solving the k-centre problem, as well as approximation algorithms and heuristic methods to solve the geometric disk cover problem. The algorithms are experimentally evaluated in a wide range of scenarios.
Description: Dissertação de Mestrado em Engenharia Informática apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Rights: openAccess
Appears in Collections:UC - Dissertações de Mestrado
FCTUC Eng.Informática - Teses de Mestrado

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