Local Discrepancy Maximization on Graphs

Mon, 27.10.2014

We study the problem of discrepancy maximization on graphs: given a set of
nodes Q of an underlying graph G, we aim to identify a connected subgraph
of G that contains many more nodes from Q than other nodes.

Prof. Hannu Toivonen chairs IEEE ICDM 2014

Thu, 23.10.2014

Prof. Hannu Toivonen of HIIT and University of Helsinki is Program Chair of IEEE International Conference on Data Mining (ICDM) 2014, the world's premier research conference in data mining. The conference will be held in Shenzhen, China, on December 14-17, 2014. The call for participation is now open.

HIIT researcher visits Columbia University - Prof. Henning Schulzrinne

Fri, 17.10.2014

HIIT researcher Aaron Yi DING, supervised by Professor Sasu Tarkoma and senior researcher Markku Kojo, is visiting Columbia University in New York USA, from September to December 2014.

Brain poetry exhibited in Frankfurt Book Fair

Fri, 10.10.2014

Computational creativity, in particular computational poetry, is currently being exhibited in an art installation at the Frankfurt Book Fair 2014. The installation builds on the P.O.Eticus-Apparatus poetry creation engine developed in the Discovery research group by Jukka Toivanen. Jukka is also a member of the art collective Brains on Art that produced this installation which uses the visitor's brain waves as inspiration when writing a unique poem for the visitor.

Improved methods for motif matching. Applications to discovering factor binding sites in DNA sequences

Mon, 06.10.2014

New algorithms are presented for the problem of multiple string matching of gapped patterns, where a gapped pattern is a sequence of strings such that there is a gap of fixed length between each two consecutive strings. The problem has applications in the discovery of transcription factor binding sites in DNA sequences when using generalized versions of the Position Weight Matrix model to describe transcription factor specificities.