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Introduction : The processing of a material can be the determining factor in it 's cost and it 's performance . A simple generalization of decisiontree based learning methods involves , iteratively , the projection of the trainign set into the space of a small subset of the attributes , derivation of a best classifier in that small space , and the introduction of the obtained signal as a new attribute for the original problem . Teachers still use the interactive whiteboards for demonstrations , introductions to units , and the like , but they also capture that information and put it on their websites so students can review it . My section introductions tell how we do what we do , including some of our failures and background stories that are not appropriate for journal papers . In addition , by that time the college had also devoted more than 15 years to testing and fine-tuning various distance delivery formats , finally settling on just three modalities : mixed media ( audio and videocassettes ) ; print-based materials ; and ultimately , in 1996 , the introduction of the internet . For example , corporate planners handle events and meetings related to company sales , promotions , product introductions , and retreats . The women students in my Introduction to Women 's Studies course were very challenged by the technology , and according to a self-assessment survey of their skills , few had much confidence in their ability to overcome technical barriers and computer glitches . Finally , the fiscal reporting and cash management capabilities of the treasury are to be enhanced through the introduction of the single treasury account and electronic ledger system by end-2001 , with technical assistance from the Fund . This begins in the classroom in the form of introductions and warm-up exercises but extends beyond this to the class website .