Ana Paula Tomás's Annual Report 2013
Year:
Brief description of the research activities:
Research along two main lines:
- Algorithms for guarding problems on rectilinear domains: Pursued research on orthogonal art gallery problems, focusing on the analysis of the computational complexity of some coverage problems in particular classes. Extended results achieved in 2012 on the NP-hardness of guarding the vertices of thin orthogonal polygons. Proved that computing a minimum guard set for either a thin orthogonal polygon or only its vertices is NP-hard, indeed APX-hard, either for guards lying on the boundary or on vertices. For guards lying anywhere in the polygon, showed that computing an optimal guard set for the vertices is NP-hard.
- Applications of logic and constraint-based languages for computer assisted learning: continued work on an application of constraint logic programming to create multiple-choice questions for math quizzes. Constraints are used for the configuration of the generator and are also used to control the application of the buggy rules in the derivation of plausible wrong solutions to the quiz questions. This tool (AgilmatQuiz) was used at FCUP to create quizzes to support assessment in a PreCalculus course for first year undergraduate students. (Work in collaboration with José Paulo Leal, CRACS).
Papers accepted for publication in peer reviewed journals:
Articles accepted for publication in peer reviewed proceedings:
Talks / Seminars / Courses :
Organization of scientific meetings:
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start and end date:
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Computational applications:
AgilmatQuiz (http://www.dcc.fc.up.pt/~apt/Research/AgilmatQuiz) - Automatic generation and delivery of multiple choice math quizzes.
Student Mentoring:
Outreach activities:
Outreach activities for secondary school students:
* ToPAS 2013 - Torneio de Programação para Alunos do Secundário (DCC-FCUP, May 2013), Scientific Committee Member (responsible for the problem set); http://www.dcc.fc.up.pt/ToPAS/
Other information :
Member of the jury (main examiner) of the PhD thesis (Informática) of João Carlos de Brito Dinis, entitled "Construção e Edição de Diagramas de Voronoi na Esfera", supervised by Margarida Mamede, FCT-UNL, Portugal, 11/2013.