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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!


Vision
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.

Mission
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
Members
  • Antti Hyttinen, senior researcher
  • Mikko Koivisto, group leader
  • Antti Röyskö, research assistant
  • Topi Talvitie, doctoral student (co-advisor Valentin Polishchuk)
  • Jussi Viinikka, research assistant
Former members
  • Aleksis Vuoksenmaa, research assistant (summer 2018)
  • Ralf Eggeling, post-doc (2015 - 2018)
  • Sami Salonen, 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)
Funding
The recent research is funded mainly by the Academy of Finland (SEA 9/2014-8/2018; ATAC 9/2018-8/2022) and the University of Helsinki (grant of T.T., 1/2016-12/2019).

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Last modified Aug 16, 2019.