30 resultados para swd: Benchmark


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau de Mestre em Engenharia do Ambiente.Perfil: Gestão e Sistemas Ambientais

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Dissertação apresentada para obtenção do Grau de Doutor em Engenharia Electrotécnica e de Computadores – Sistemas Digitais e Percepcionais pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Due to usage conditions, hazardous environments or intentional causes, physical and virtual systems are subject to faults in their components, which may affect their overall behaviour. In a ‘black-box’ agent modelled by a set of propositional logic rules, in which just a subset of components is externally visible, such faults may only be recognised by examining some output function of the agent. A (fault-free) model of the agent’s system provides the expected output given some input. If the real output differs from that predicted output, then the system is faulty. However, some faults may only become apparent in the system output when appropriate inputs are given. A number of problems regarding both testing and diagnosis thus arise, such as testing a fault, testing the whole system, finding possible faults and differentiating them to locate the correct one. The corresponding optimisation problems of finding solutions that require minimum resources are also very relevant in industry, as is minimal diagnosis. In this dissertation we use a well established set of benchmark circuits to address such diagnostic related problems and propose and develop models with different logics that we formalise and generalise as much as possible. We also prove that all techniques generalise to agents and to multiple faults. The developed multi-valued logics extend the usual Boolean logic (suitable for faultfree models) by encoding values with some dependency (usually on faults). Such logics thus allow modelling an arbitrary number of diagnostic theories. Each problem is subsequently solved with CLP solvers that we implement and discuss, together with a new efficient search technique that we present. We compare our results with other approaches such as SAT (that require substantial duplication of circuits), showing the effectiveness of constraints over multi-valued logics, and also the adequacy of a general set constraint solver (with special inferences over set functions such as cardinality) on other problems. In addition, for an optimisation problem, we integrate local search with a constructive approach (branch-and-bound) using a variety of logics to improve an existing efficient tool based on SAT and ILP.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação para obtenção do Grau de Mestre em Engenharia Informática

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação submetida à Universidade Nova de Lisboa para obtenção do grau de Mestre em Engenharia Electrotécnica e Computadores

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação para obtenção do Grau de Mestre em Engenharia Informática

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação para obtenção do Grau de Mestre em Engenharia Civil, Ramo de Estruturas

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação para obtenção do Grau de Mestre em Engenharia Informática

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The INOTEC-Empresa – the Technological Innovation Plan for Enterprises in the Autonomous Region of the Azores (RAA) - was developed in 2006-2007, at the request of the Regional Government, with the main aim of promoting innovation within small and medium enterprises. The methodological approach used in the development of the INOTEC – Empresa Plan was designed to obtain a comprehensive view of regional actors and included a document review, participation of the various actors through interviews, a collection of statements from RAA – Região Autónoma dos Açores – entrepreneurs, academics, public leaders and other key players, together with an analysis of their views and a survey of the innovation dynamics of the most relevant Azorean enterprises. The INOTEC-Empresa – the Technological Innovation Plan for Enterprises – comprises seven programmes aimed at promoting innovation in the Region. This paper focuses on the Programmes for Qualification of Human Resources and the Development of Scientific and Technological Capacities for Innovation. Some socio-economic data and the metrics selected to assess and benchmark the implementation of the Plan will als

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação para obtenção do Grau de Mestre em Engenharia Informática

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação para obtenção do Grau de Mestre em Lógica Computacional

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertação para obtenção do Grau de Doutor em Engenharia Electrotécnica e de Computadores

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertation to obtain the Doctoral degree in Physics Engineering