Concept drift due to hidden changes in context complicates learning in many domains including nancial prediction, medical diagnosis, and communication network performance. Existing machine learning approaches to this problem use an incremental learning, on-line paradigm. Batch, oo-line learners tend to be ineeective in domains with hidden changes in context as they assume that the training set ...

INTRODUCTION Host-microbe interactions have traditionally been viewed primarily from the perspective of pathogenesis and disease. The principal assumption is that a susceptible host will support microbial growth inside host tissues, leading eventually to the development of symptoms and disease. Inversely, non-susceptible (resistant) hosts will block pathogen infection and the expression of dise...

The primary role of the vocational agriculture teacher has always been to help students learn knowledge and skills in agriculture. In order for the program to justify the time and money utilized on it, it is important that students be taught by competent teachers using a variety of teaching methods and using them appropriately (The Unfinished Agenda. 1986). A competent teacher is the essential ...

A 2011 Institute for Public Policy Research (IPPR) report calculated that an additional 750,000 homes would be needed by 2025 to meet projected demand in the UK. If this is to be achieved, a significant number of new communities will be developed over the next decade. Local councillors have considerable potential in influencing the social sustainability of such new developments, particularly in...

This article explores the political determinants of congressional investigatory activity. Using Mayhew’s list of high-profile probes updated through 2006, we developed five measures of the frequency and intensity of investigative oversight. Contra Mayhew, we found that divided government spurs congressional investigatory activity. A shift from unified to divided government yields a five-fold in...