Approximation algorithms to minimum vertex cover problems on polygons and terrains

We propose an anytime algorithm to compute successively better approximations of the optimum of MINIMUM VERTEX GUARD. Though the presentation is focused on polygons, the work may be directly extended to terrains along the lines of [4]. A major idea in our approach is to explore dominance of visibili...

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Detalhes bibliográficos
Autor principal: Ana Paula Tomás (author)
Outros Autores: António Leslie Bajuelos (author), Fábio Marques (author)
Formato: book
Idioma:eng
Publicado em: 1000
Assuntos:
Texto completo:http://hdl.handle.net/10773/8933
País:Portugal
Oai:oai:ria.ua.pt:10773/8933
Descrição
Resumo:We propose an anytime algorithm to compute successively better approximations of the optimum of MINIMUM VERTEX GUARD. Though the presentation is focused on polygons, the work may be directly extended to terrains along the lines of [4]. A major idea in our approach is to explore dominance of visibility regions to first detect pieces that are more difficult to guard