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The Sums of Products Research Group

Click the image to view slides that give an idea of the kind of work done in the group!

Non-standard methods—especially ones involving moderately exponential algorithms—for evaluating large and structured sums of products have great prospects to significantly advance the state of the art in algorithm theory and computational statistics.

The group's current mission is to implement the vision by studying
  • algorithm theory of computing sums of products,
  • sums of products in computational statistics,
  • applications in science and technology.
Ongoing projects
  • Fast sum-product algorithms for set functions
  • Efficient algorithms for structure learning in graphical models
  • Bounding by products: global bounds via local views
  • Ralf Eggeling, post-doc
  • Mikko Koivisto, group leader
  • Sami Salonen, research assistant
  • Topi Talvitie, doctoral student (co-advisor Valentin Polishchuk)
Former members
  • Jussi Viinikka, research assistant (summer 2017)
  • Kustaa Kangas, doctoral student, post-doc (PhD 2016, co-advisor Matti Järvisalo)
  • Teppo Niinimäki, doctoral student, post-doc (PhD 2015)
  • Janne Korhonen, doctoral student, post-doc (PhD 2014, co-advisor Petteri Kaski)
  • Esther Galbrun, doctoral student (PhD 2014, co-advisor Hannu TT Toivonen)
  • Pekka Parviainen, doctoral student, post-doc (PhD 2012)
The research is funded by scattered small to moderate-size grants for projects that loosely fit the group's mission: by the Academy of Finland (M.K. 9/2014-8/2018 and 8/2008-10/2013), the doctoral programmes DoCS (K.K. 1/2014-12/2016), FICS (P.P. 1/2010-6/2011) and Hecse (J.K. 1/2010-12/2013; T.N. 1/2011-12/2014), the NIH (UCLA subaward, PI: Heikki Mannila, 7/2007-6/2012), the Algodan CoE, and HIIT.

Contact | Publications | Research | Software | Teaching

Last modified Feb 26, 2018.