This paper describes the use of a Hybrid Fuzzy-Genetic Programming system to discover patterns in large databases. It does this by evolving a series of variablelength fuzzy rules which generalise from a training set of labelled classes. Numerous novel techniques, including the use of genotypes in Genetic Programming, two new genetic crossover operators, and the processes of Modal Evolution, Mod...

A full-wave analysis of an inhomogeneous waveguide region with both planar and circular cylindrical boundaries is presented in this paper. Circular cylindrical modal functions are used to represent the fields. Field matching on the planar walls and apertures is rigorously achieved by the finite plane-wave series expansion of each modal field, whereas the addition theorem for cylindrical waves i...

We continue a series of papers on a family of many-valued modal logics, a family whose Kripke semantics involves many-valued accessibility relations. Earlier papers in the series presented a motivation in terms of a multiple-expert semantics. They also proved completeness of sequent calculus formulations for the logics, formulations using a cut rule in an essential way. In this paper a novel cu...

A full-wave electromagnetic model for analyzing waveguide discontinuities of arbitrarily shaped piecewise planar boundaries is presented. The analysis is facilitated by using the finite plane-wave series expansion of circular cylindrical modal functions. Since electromagnetic fields on each of the planar boundary surfaces of the inhomogeneous region are expressed in terms of plane-wave modal fu...

We present an algorithm for computing directly the denotation of a modal μcalculus formula χ with backwards modalities over the configuration graph of a pushdown system. Our method gives the first extension of the saturation technique to the full modal μ-calculus with backwards modalities. Finite word automata are used to represent sets of pushdown configurations. Starting from an initial autom...

The paper deals with the possibilities of using mathematical apparatus of a stochastic time series for stochastic systems identification and modeling, especially mechanical ones. Its purpose is to briefly characterize fundamental terms and equations of mathematical apparatus of time series, to describe the algorithm of a statistically adequate discrete model of a stochastically dynamic system t...

ABSTRACT In this paper, we propose a new numerical method for solving a rib waveguide TE-mode problem. In the proposed method, the cross-section of the waveguide is divided into several regions and the refractive index profile and field distribution in each region are expanded into Fourier cosine series, and then are substituted in the wave equation. A second-order differential matrix equation ...

Initial-value and periodic nonlinear pulsation integrations are carried out for a series of doublemode Cepheid models (PdPo 0.7) in the vicinity of the resonance WI + Wo = W3. None of the models tested shows persistent double-mode behavior. A new, semiquantitative description of modal selection, based upon the iterative theory of Simon, is introduced to analyze the nonlinear results. In the sim...

abstracttask-based language teaching is considered an effective way to achieve a harmony between grammar and communication. the present study investigates two different ways of teaching modal verbs: task-based versus traditional approaches. to this purpose, an oxford placement test was administered to select 40 homogeneous participants out of a larger population who took this test. the selected...

the ambient vibration measurement is a kind of output data-only dynamic testing where the traffics and winds are used as agents responsible for natural or environmental excitation. therefore an experimental modal analysis procedure for ambient vibration testing needs to base itself on output-only data. the modal analysis involving output-only measurements present a challenge that requires the u...