Introduction: Content Based Image Retrieval (CBIR) is a method of image searching and retrieval in a  database. In medical applications, CBIR is a tool used by physicians to compare the previous and current  medical images associated with patients pathological conditions. As the volume of pictorial information  stored in medical image databases is in progress, efficient image indexing and retri...

Ubiquitous location-aware sensing devices have facilitated collection of large volumes of mobility data streams from moving entities such as people and animals, among others. Extraction of various types of periodic behavioral patterns hidden in such large volume of mobility data helps in understanding the dynamics of activities, interactions, and life style of these moving entities. The ever-in...

The sign language recognition is the most popular research area involving computer vision, pattern recognition and image processing. It enhances communication capabilities of the mute person. In this paper, we present an object based key frame selection and skin colour segmentation uniform and no uniform background for one and two hand gesture recognition. Experimental results demonstrate the e...

Design Patterns provide a \higher-level" view of interactions among collections of objects. They are a response to a common problem in large, object-oriented systems: there is no explicit representation of the patterns of activity of collections of objects. Wrappings are a Knowledge-Based integration infrastructure for constructing complex software systems, that we have developed over several y...

Background in music psychology and music computation. In Lerdahl and Jackendoff’s Generative Theory of Tonal Music (1983), the authors try to formalize cognitive processes seen in music, referring to Chomskyan (generative) linguistics. Among other processes found in musical cognition (such as harmonic tension and detecting rhythmic patterns), Lerdahl and Jackendoff describe the process of group...

Content-based Pub/Sub systems are gaining increasing popularity as an integration and cooperation middleware supporting large-scale distributed applications, especially for Grid. However, existing content-based Pub/Sub systems mainly focus on the “one-to-one” event matching, not on the composite event matching. The composite event matching enables application components to express more interest...

Design patterns help to enhance software quality by addressing fundamental challenges in large-scale system development. These challenges include communication of architectural knowledge among developers, accommodating new design paradigms or architectural styles, and avoiding development traps and pitfalls that are usually learned only by experience. This article describes lessons learned from...