SoftwareFrom: Luis Torgo Date: Fri, 06 Jul 2001 11:16:13 +0000 Subject: Software - Tree-based regression system available for download RT is a learning system that can handle multiple regression problems based on samples of data. The resulting models have the form of a regression tree. Linux and SunOS versions of RT 4.1.0 are now available for free download for research purposes at: http://www.liacc.up.pt/~ltorgo/RT/ Compared to existing systems for obtaining regression trees, the most distinguishing feature of RT is its ability to use local models in the tree leaves, leading to what we have named local regression trees. The use of these models brings highly significant gains in terms of prediction accuracy at the cost of some interpretability of the models and also with an increase of computation time. Due to the schema used to integrate local models with regression trees, RT can easily behave like a normal local modeling system or a standard regression tree learner. Moreover, this schema allows RT to emulate other regression modeling techniques (like for instance CART, Core, or RETIS). Further information can be obtained at RT web page (www.liacc.up.pt/~ltorgo/RT/). Luis Torgo LIACC/FEP, University of Porto ltorgo@liacc.up.pt - www.liacc.up.pt/~ltorgo |
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