One of the primary areas of machine learning research has been supervised concept learning given some information about examples whose class is known, the goal is to produce a classifier which can classify examples whose class is not known. In general, research in this area has focused on situations where an object’s attributes do not change in the short term. However, in many real-world domain...

prof. mohammad-taqi danesh-pajouh was born in 1290/1911. after his primary education in his birth-place, amol, he continued his education and studied clerical topics in qom. then he entered the faculty of law at tehran university and took his bachelor's degree in 1320/1941. he began his career as a librarian in the library of above mentioned faculty, and a few years later, he was appointed...

The Library of Congress National Library Service for the Blind and Physically Handicapped leads a co-operative network of specialized libraries and ancillary agencies that are delivering a successful programme of reading and informational services to blind, visually impaired and handicapped users. Its unique position within the Library of Congress and the benefits which emanate from this relati...

The challenge of creating an effective and appropriate library collection has been further tested by the recent advent of what Clayton Christensen has termed “disruptive technology.” In his well-known study, The Innovator’s Dilemma, Christensen explores the impact of technological change on the business and other communities. For Christensen, technology can either be sustaining or disruptive. S...