Department of Computer Science | Institute of Theoretical Computer Science | CADMO

Theory of Combinatorial Algorithms

Prof. Emo Welzl

Mittagsseminar (in cooperation with M. Ghaffari, A. Steger and B. Sudakov)

Mittagsseminar Talk Information

Date and Time: Thursday, October 14, 2010, 12:15 pm

Duration: This information is not available in the database

Location: CAB G51

Speaker: Martin Jaggi

A typical day in the life of the optimization problem max xT A x

We will consider two variants of the optimization problem max xT A x, for a matrix A. This problem is at the core of principal component analysis (PCA), most classification methods, and many other approaches in and outside machine learning. In one variant, the domain for x will be the ||.||2-sphere, whereas in the second case it is part of the ||.||1-sphere.

In the remainder of the talk, we will elaborate on the quality of comments on YouTube, portfolio optimization, MAX-CUT, population genetics, Google, movie rental, baseball bats and sociology, the iTunes Genius feature, email spam, and not to forget: automated face detection.

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