This video introduces the concept of regression trees as recursive, piece-wise constant fits in order to identify an underlying response surface. It then walks through an example of a CART model setup using the Boston housing data and discusses the results. Finally, a summary of how this approach simplifies the underlying structure by constructing piece-wise constant models, by segmenting the underlying population into a set of mutually exclusive smaller segments, such that within each segment the overall prediction is a constant and as you go from segment to segment, the prediction changes by a fixed amount.
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Watch video Data Mining for Statisticians Part 3 online without registration, duration hours minute second in high quality. This video was added by user Salford Systems 07 May 2014, don't forget to share it with your friends and acquaintances, it has been viewed on our site 814 once and liked it 3 people.