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Path planning plays an important role in the area of mobile robot, which includes two important contents: environment modeling and path searching. The method of Voronoi diagram for general figures by approximation structuring is utilized and the origin and terminal are linked into diagram to construct the non-collision road map. Zonal Ant Colony Algorithm is applied to search the shortest path between...
The main objective of this paper is to put forward Granular Matrix (GrM). By the definition of GrM, all the fundamental algebraic definitions of Rough Set Theory (RST) are redefined by simple matrix operation. Furthermore, two different definitions (algebraic definition and rough membership function definition) for rough inclusion and rough equivalence are united by GrM. GrM help us understand the...
Dominance-based rough set approach is an useful extension of the classical rough set approach and it has been successfully applied into multi-criteria decision analysis problems. This paper present an explorative research focusing on knowledge reduction of fuzzy rough set model in fuzzy decision system. The investigated fuzzy rough set model is different from the classical fuzzy rough set model because...
The purpose of this paper is to investigate the incomplete information system in which all unknown values are considered as "do not care" conditions by rough set technique. Based on the non-symmetric similarity relation for classification analysis in such information system, we propose the concept of valued similarity relation to show the degree that an object is similar to another one....
Decoding algorithm complexity influences the application of low-density parity-check (LDPC) codes. This article investigated the Belief-Propagation and improved decode algorithms for a subclass of binary LDPC that can be encoded linearly. Through the comparison of decoding performance, a low complexity one with good performance is preferred. It is shown that the incorporation of LDPC coding techniques...
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