there are two interesting methods, in the literature, for solving fuzzy linear programming problems in which the elements of coefficient matrix of the constraints are represented by real numbers and rest of the parameters are represented by symmetric trapezoidal fuzzy numbers. the first method, named as fuzzy primal simplex method, assumes an initial primal basic feasible solution is at hand. t...

CASTILHO-WEINERT, Luciana Vieira. Ontologies and Artificial Intelligence Techniques to Support Neuropediatric Physiotherapy Diagnosis. 2010. 251p. Tese (Doutorado) – Programa de Pós-Graduação em Engenharia Elétrica e Informática Industrial, Universidade Tecnológica Federal do Paraná. Curitiba, 2010. This thesis proposes a new methodology based on ontologies and artificial intelligence technique...

It has been recognised that formal methods are useful as a modelling tool in requirements engineering. Speci cation languages such as Z permit the precise and unambiguous modelling of system properties and behaviour. However some system problems, particularly those drawn from the IS problem domain, may be di cult to model in crisp or precise terms. It may also be desirable that formal modelling...

This paper proposes one approach for evaluating the efficiency of an urban transportation service in multi actors’ context and in multicriteria framework. A priori analysis is intended for clarifying options, by reducing uncertainty and, more generally, by providing information about the alternatives in their specific context. Firstly, a diagnosis phase based on hierarchical ascending classific...

abstract nowadays, due to the environmental uncertainty and rapid development of new technologies, economic variables are often predicted by using less data and short-term timeframes. therefore, prediction methods which require fewer amounts of data are needed. auto regressive integrated moving average (arima) model and artificial neural networks (anns) need large amounts of data to achieve acc...

Wire-cut electric discharge machining is a nontraditional technique by which the required profile is acquired using sparks energy. Concerning wire-cut electric discharge machining, high cutting rates and precision machining is necessary to improve productivity and achieve high quality of machined workpieces. In this research work, an experimental investigation was introduced to achieve higher p...

Two major challenges with requirement engineering are (1) requirements are often imprecise in nature, and (2) requirements are usually connicting with each other. One of the most important issues in the trade-oo analysis of connicting requirements is to understand the priority of requirements. Existing formal methods for requirement engineering are very limited in addressing these issues. This ...

Some difficulties emerging during the construction of fuzzy behaviour-based control structures are inherited from the type of the applied fuzzy reasoning. Classical fuzzy reasoning methods need a complete fuzzy rule base. In case of fetching fuzzy rules directly from expert knowledge e.g. for the behaviour coordination module, the way of building a complete rule base is not always straightforwa...