TY - GEN AU - Karampatziakis, Nikos AU - Mineiro, Paul A2 - T1 - Discriminative Features via Generalized Eigenvectors JO - PB - C1 - PY - 2013/ VL - IS - SP - EP - UR - http://arxiv.org/abs/1310.1934 DO - KW - analysis KW - eigenvector KW - feature KW - kallimachos L1 - N1 - Discriminative Features via Generalized Eigenvectors N1 - AB - Representing examples in a way that is compatible with the underlying

classifier can greatly enhance the performance of a learning system. In this

paper we investigate scalable techniques for inducing discriminative features

by taking advantage of simple second order structure in the data. We focus on

multiclass classification and show that features extracted from the generalized

eigenvectors of the class conditional second moments lead to classifiers with

excellent empirical performance. Moreover, these features have attractive

theoretical properties, such as inducing representations that are invariant to

linear transformations of the input. We evaluate classifiers built from these

features on three different tasks, obtaining state of the art results. ER - TY - GEN AU - Langville, Amy N. AU - Meyer, Carl D. A2 - T1 - A Survey of Eigenvector Methods of Web Information Retrieval JO - The SIAM Review PB - C1 - PY - 2005/ VL - 47 IS - 1 SP - 135 EP - 161 UR - http://www.cofc.edu/~langvillea/surveyEVwebIRReprint.pdf DO - KW - web KW - svd KW - pagerank KW - ir KW - eigenvector KW - salsa KW - lsi KW - **** KW - hits L1 - N1 - Amy N. Langville's homepage N1 - AB - Web information retrieval is significantly more challenging than traditional well-controlled,

small document collection information retrieval. One main difference between traditional

information retrieval and Web information retrieval is the Web’s hyperlink structure. This

structure has been exploited by several of today’s leading Web search engines, particularly

Google and Teoma. In this survey paper, we focus on Web information retrieval methods

that use eigenvector computations, presenting the three popular methods of HITS,

PageRank, and SALSA. ER -