UMTS is real. In a continuously growing number of countries we can walk in the stores of mobile network operators or resellers and take UMTS PC cards or even third-generation (3G) phones home and use them instantly. Every day the number of equipments and their feature sets gets broader. The “dream” of multimedia on mobile...

Welcome to Java Foundations. This book is designed to serve as the primary resource for a two- or three-term introductory course sequence, ranging from the most basic programming concepts to the design and implementation of complex data structures. This unified approach makes the important introductory sequence more cohesive and...

Fuzzy systems and neural networks have attracted the growing interest of researchers, scientists, engineers, practitioners, and students in various scientific and engineering areas. Fuzzy sets and fuzzy logic are based on the way the brain deals with inexact information, while neural networks (or artificial neural networks) are modeled...

In the last 15 years, some of us have witnessed mail becoming e-mail, grocery stores becoming www.store, and step-by-step technology becoming part of our daily life. Technology development has radically changed the enterprise's way of doing business. First, daily tasks such as sales, client, and vendor management became...

The explosive growth of e-commerce and online environments has made the issue of information search and selection increasingly serious; users are overloaded by options to consider and they may not have the time or knowledge to personally evaluate these options. Recommender systems have proven to be a valuable way for online users to cope with...