0167-8655/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.patrec.2009.03.004 * Corresponding author. Tel.: +91 33 2575 3110; fa E-mail address: [email protected] (A. Ghosh). Ants, bees and other social insects deposit pheromone (a type of chemical) in order to communicate between the members of their community. Pheromone that causes clumping or clustering behavior in a species and brings i...

Consider in the space C with the coordinates x{ , x2, x3 the surface X defined by the equation x\ + x\ + x\ = 0. We prove the following theorem: T H E O R E M 1. Let D{X) be the ring of regular differential operators on X, and Da the ring of germs at the point 0 of analytic operators on X. Then 1°. the rings D(X) and Da are not Noetherian; 2°. for any natural number k the rings D{X) and Da are ...

It is known since 1988 that utilizing linear dimension reduction gives appropriate lower dimensional representation of homogenous swatches of color images of the nature. Though, it is common to see serious research projects, even dated 2005, which are based on the fixed color space paradigm. In this thesis, first experimental evaluations are performed to compare the principal component analysis...

The ‘unforgettable presence’ of the sea is notable by its absence in many accounts of the Neolithic of coastal and island areas within the British Isles. The story as most frequently told is one of terrestrial action; of monumental construction, polished stone technology, pottery and domesticates. When the sea does emerge it is often of a homogenous nature, a resource to be exploited with littl...

Random walks are a relatively new component used in several state of the art satisficing planners. Empirical results have been mixed: while the approach clearly outperforms more systematic search methods such as weighted A* on many planning domains, it fails in many others. So far, the explanations for these empirical results have been somewhat ad hoc. This paper proposes a formal framework for...

The purpose of this work was to determine the structure of latent factors, to identify and analyse groups of game tasks under specifi c attributes and variables, to classify the tasks into relatively homogenous groups, and to determine the differences between the acquired groups of tasks. In order to achieve the above mentioned it was necessary to construct a measuring instrument (questionnaire...