Path: utzoo!utgpu!news-server.csri.toronto.edu!neuron.ai.toronto.edu!neat.cs.toronto.edu!radford Newsgroups: comp.ai.neural-nets From: radford@ai.toronto.edu (Radford Neal) Subject: Re: references help Message-ID: <90Oct17.163038edt.310@neuron.ai.toronto.edu> Organization: Department of Computer Science, University of Toronto References: Date: 17 Oct 90 20:30:58 GMT Lines: 21 In article zl03+@andrew.cmu.edu (Zoonky L. Lee) writes: >Do anyone have any references for the differences of using raw data and >statistics as input in BP? If I've interpreted your question correctly, the following paper is relevant: Hopfield, J. J. (1987) Learning algorithms and probability distributions in feed-forward and feed-back networks, _Proceedings of the National Academy of Sciences USA_, vol. 84, pp. 8429-8433. He explains how a true "expert" is better than an "oracle". For example, in a medical diagnosis application, it is better to know that patients with such-and-such symptoms have a 75% chance of having cancer than to know that one particular patient had those symptoms and did (or did not) have cancer. Of course, a false "expert" could be much worse than raw data... Radford Neal