Invention Grant
- Patent Title: Systems, methods and computer program products for supervised dimensionality reduction with mixed-type features and labels
- Patent Title (中): 用于混合型特征和标签的监督降维的系统,方法和计算机程序产品
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Application No.: US12031775Application Date: 2008-02-15
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Publication No.: US07996342B2Publication Date: 2011-08-09
- Inventor: Genady Grabarnik , Irina Rish
- Applicant: Genady Grabarnik , Irina Rish
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Preston Young
- Main IPC: G06F15/18
- IPC: G06F15/18

Abstract:
Systems, methods and computer program products for supervised dimensionality reduction. Exemplary embodiments include a method including receiving an input in the form of a data matrix X of size N×D, wherein N is a number of samples, D is a dimensionality, a vector Y of size N×1, hidden variables U of a number K, a data type of the matrix X and the vector Y, and a trade-off constant alpha; selecting loss functions in the form of Lx(X,UV) and Ly(Y,UW) appropriate for the type of data in the matrix X and the vector Y, where U, V and W are matrices, selecting corresponding sets of update rules RU, RV and RW for updating the matrices U,V and W, learning U, V and W that provide a minimum total loss L(U,V,W)=Lx(X,UV)+alpha*Ly(Y,UW), and returning matrices U, V and W.
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