3 ms·
backpropagation is just the chain rule of differentiation. each layer of an ANN is logistic regression, which statisticians have been and continue to be interes
by dododo 15y ago
backpropagation is just the chain rule of differentiation. each layer of an ANN is logistic regression, which statisticians have been and continue to be interested in.
i'm not sure your caricature of the netflix winning solution is correct: i believe it was a blending of around 25 different models (including, i think, the RBM someone pointed about above) each in themselves quite varied from one another. this is typically how these challenges are won.
- yid 15y agoA lot of the top teams had blended submissions, but my characterization was not incorrect: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5197422 http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5197...
- elq 15y agoI work on the cinematch team at netflix... I've reviewed all of the winning code... your characterization is incorrect. The netflix prize would not have been won when it was without rbm.