[Dmbu-l] Talk by Pauli Miettinen Tuesday 4/28 at 11 am MCS 148
edori at bu.edu
Tue Apr 28 10:47:38 EDT 2015
Pauli's talk is today!
On Fri, 24 Apr 2015, Dora Erdos wrote:
> Hi All,
> we have a visitor next Tuesday. Come to his Talk!
> Speaker: Pauli Miettinen, Max Planck Institut for Informatics
> Time and location: Tuesday, 4/28/2015 11-12 am. MCS 148.
> Title: Matrix Factorizations Over Non-Conventional Algebras in Data Mining
> Matrix factorization methods---and more broadly, linear-algebra-based
> methods---are well-used and well-loved in data mining. Most popular methods
> are based on the standard linear algebra, but recent years have seen
> increased interest in methods based on non-conventional algebras, most
> notably, the Boolean algebra. Using non-standard algebras can have multiple
> benefits: the factor matrices can be sparser or easier to interpret, for
> example, but most importantly, it will allow us to find structures different
> to those we find using the standard linear algebra.
> In this talk, I will cover the basic ideas behind the Boolean matrix
> factorization and its recent developments and applications both in data
> mining and in related areas. We will also see some other non-standard
> algebras, such as tropical and subtropical algebras, and their potential
> applications to data mining problems. In the end, I will briefly discuss
> ongoing work on generalizing the concept of outer product and approaching the
> matrix factorizations from this point of view.
> Pauli did his PhD at University of Helsinki, Finland, in Prof. Heikki
> Mannila's group, where he graduated at 2009. After a short post-doc period at
> Helsinki, he moved to Max-Planck Institute for Informatics in Saarbrücken,
> Germany, where he is currently a senior researcher and the leader of research
> field Data Mining. His current research focus is on redescription mining and
> non-conventional matrix and tensor factorizations and their applications to
> data mining. His work has appeared in numerous publications in top data
> mining and theoretical computer science venues. He has received two best
> paper awards and an honorary mention at 2010 ACM SIGKDD Doctoral dissertation
> awards. While he insists that 1+1=1, he accepts that other people might have
> different opinions.
More information about the Dmbu-l