| Department of Computer Science

Petri Myllymäki

Professor

Contact Information

Email: Petri.Myllymaki[at]cs.helsinki.fi

Mobile: +358 40 5531162

Homepage: http://www.cs.helsinki.fi/u/myllymak/

Vastaanottoaika: Request appointment by email, available times can be found at http://ical.me.com/petri.myllymaki/Calendars

Room: A320

Phone: (09) 19151337

Principal Investigator of

Complex Systems Computation (CoSCo)

2012

Comparison of NML and Bayesian scoring criteria for learning parsimonious Markov models

Eggeling, R. , Roos, T. T. , Myllymäki, P. & Grosse, I. 2012 4 p.

Publication: Conference contribution âº B3 Unrefereed article in conference proceedings

Editorial: Special issue on the Fifth European Workshop on Probabilistic Graphical Models (PGM-2010)

Roos, T. T., Myllymäki, P. & Jaakkola, T. 12.2012 In : International Journal of Approximate Reasoning. 59, 4, p. 1303-1304. 2 p.

Publication: Contribution to journal âº B1 Unrefereed journal article

Editorial: Special issue on the Fifth European Workshop on Probabilistic Graphical Models (PGM-2010)

Roos, T. (ed.), Myllymäki, P. (ed.) & Jaakkola, T. (ed.) 12.2012 In : International Journal of Approximate Reasoning. 59, 2 p.

Publication: Contribution to journal âº B1 Unrefereed journal article

Editorial: Special issue on the Fifth European Workshop on Probabilistic Graphical Models (PGM-2010)

Roos, T. (ed.), Myllymäki, P. (ed.) & Jaakkola, T. (ed.) 12.2012 In : International Journal of Approximate Reasoning. 59, 9, p. 1303–1304. 2 p.

Publication: Contribution to journal âº B1 Unrefereed journal article

Long-term effects of ubiquitous surveillance in the home

Oulasvirta, A. , Pihlajamaa, A. , Perkiö, J. P. , Ray, D. , Vähäkangas, T. , Hasu, T. , Vainio, N. & Myllymäki, P. 2012 p. 41-50. 10 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Ma$$ivâ¬ - An Intelligent Mobile Grocery Assistant

Bhattacharya, S. , Floréen, P. , Forsblom, A. , Hemminki, S. , Myllymäki, P. , Nurmi, P. , Pulkkinen, T. & Salovaara, A. 27.06.2012 p. 165-172 .

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Proceedings of the Fifth Workshop on Information Theoretic Methods in Science and Engineering (WITMSE-2012)

de Rooij, S. (ed.), Kotlowski, W. (ed.), Rissanen, J. (ed.), Myllymäki, P. (ed.), Roos, T. (ed.) & Yamanishi, K. (ed.) 2012 Amsterdam: Centrum Wiskunde & Informatica (CWI). 91 p.

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Special issue on the Fifth European Workshop on Probabilistic Graphical Models (PGM-2010)

Roos, T. T. (ed.), Myllymäki, P. (ed.) & Jaakkola, T. (ed.) 12.2012 Elsevier Science.

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

2011

Discriminative learning of Bayesian networks via factorized conditional log-likelihood

Carvalho, A. M. , Roos, T. T. , Oliveira, A. L. & Myllymäki, P. 2011 In : Journal of Machine Learning Research. 12, p. 2181-2210. 30 p.

Publication: Contribution to journal âº A1 Refereed journal article

Fourth Workshop on Information Theoretic Methods in Science and Engineering: Proceedings

Rissanen, J. (ed.), Myllymäki, P. (ed.), Roos, T. (ed.), Tabus, I. (ed.) & Yamanishi, K. (ed.) 2011 Helsinki. 83 p. (Department of Computer Science, Series of Publications C; C-2011-45).

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Semi-supervised learning for WLAN positioning

Pulkkinen, T. , Roos, T. T. & Myllymäki, P. 2011 p. 355-362. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2010

Image Similarity: From Syntax to Weak Semantics

Perkiö, J. , Tuominen, A. , Vähäkangas, T. & Myllymäki, P. 2010 In : Multimedia Tools and Applications.

Publication: Contribution to journal âº A1 Refereed journal article

Learning locally minimax optimal Bayesian networks

Silander, T. , Roos, T. T. & Myllymäki, P. 2010 In : International Journal of Approximate Reasoning. 51/2010, 5, p. 544-557. 14 p.

Publication: Contribution to journal âº A1 Refereed journal article

Model selection by sequentially normalized least squares

Rissanen, J. , Roos, T. & Myllymaki, P. 2010 In : Journal of Multivariate Analysis. 101, p. 839-849. 11 p.

Publication: Contribution to journal âº A1 Refereed journal article

Proceedings of the Fifth European Workshop on Probabilistic Graphical Models

Myllymäki, P. , Roos, T. & Jaakkola, T. 09.2010 Helsinki: Helsinki Institute for Information Technology. 302 p. (HIIT Publications; 2010-2).

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Proceedings of the Third Workshop on Information Theoretic Methods in Science and Engineering, August 16-18, 2010, Tampere, Finland

Yamanishi, K. (ed.), Kontoyiannis, I. (ed.), Liski, E. P. (ed.), Myllymäki, P. (ed.), Rissanen, J. J. (ed.) & Tabus, I. (ed.) 2010 Tampere International Center for Signal Processing. (Tampere International Center for Signal Processing. TICSP series; 55).

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

2009

A framework for MDL clustering

Myllymäki, P. 2009

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Image similarity: from syntax to weak semantics using multimodal features with application to multimedia retrieval

Perkiö, J. , Tuominen, A. & Myllymäki, P. 2009 p. 213-219. 7 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Locally minimax optimal predictive modeling with Bayesian networks

Silander, T. , Roos, T. & Myllymäki, P. 2009 p. 504-511. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Magrathea: building and analyzing ubiquitous and social systems

Perkiö, J. & Myllymäki, P. 2009 p. 66-75. 10 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

MDL denoising revisited

Roos, T. , Myllymäki, P. & Rissanen, J. 2009 In : IEEE Transactions on Signal Processing. 57, 9, p. 3347-3360. 14 p.

Publication: Contribution to journal âº A1 Refereed journal article

MDL-based attribute models in naive Bayes classification

Elovaara, E. & Myllymäki, P. 2009

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Proceedings of the Second Workshop on Information Theoretic Methods in Science and Engineering, August 17-19, 2009, Tampere, Finland

Heikkonen, J. (ed.), Kontoyiannis, I. (ed.), Liski, E. P. (ed.), Myllymäki, P. (ed.), Rissanen, J. (ed.) & Tabus, I. (ed.) 2009 Tampere: Tampere International Center for Signal Processing. (Tampere International Center for Signal Processing. TICSP series; 49).

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

VISCI virtual intelligent space for collaborative innovation: project description

Kumpulainen, K. , Myllymäki, P. , Smeds, R. , Kronqvist, J. & Pöyry-Lassila, P. 2009 p. 75-82. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2008

A Bayesian approach to learning in fault isolation

Pernestål, A. , Wettig, H. , Silander, T. , Nyberg, M. & Myllymäki, P. 2008 p. 143-150. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Bayesian network structure learning using factorized NML universal models

Roos, T. , Silander, T. , Kontkanen, P. & Myllymäki, P. 2008 p. 272-276. 5 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Computing the multinomial stochastic complexity in sub-linear time

Mononen, T. & Myllymäki, P. 2008 p. 209-216. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Computing the NML for Bayesian forests via matrices and generating polynomials

Mononen, T. & Myllymäki, P. 2008 p. 276-280. 5 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Factorized NML models

Myllymäki, P. , Roos, T. , Silander, T. , Kontkanen, P. & Tirri, H. 2008 In: Festschrift in honor of Jorma Rissanen on the occasion of his 75th birthday. Tampere: Tampere International Center for Signal Processing, p. 189-204. 16 p.

Publication: Contribution to book/anthology âº A3 Contribution to book/other compilations (refereed)

Factorized normalized maximum likelihood criterion for learning Bayesian network structures

Silander, T. , Roos, T. , Kontkanen, P. & Myllymäki, P. 2008 p. 257-272. 16 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Festschrift in honor of Jorma Rissanen on the occasion of his 75th birthday

Grunwald, P. (ed.), Myllymäki, P. (ed.), Tabus, I. (ed.), Weinberger, M. (ed.) & Yu, B. (ed.) 2008 Tampere: Tampere International Center for Signal Processing. 320 p. (TICSP series; 38).

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Magrathea: a mobile agent- and sensing platform

Perkiö, J. , Myllymäki, P. , Tuulos, V. H. & Boda, P. 2008 7 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

On recurrence formulas for computing the stochastic complexity

Mononen, T. & Myllymäki, P. 2008 p. 281-286. 6 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

On the multinomial stochastic complexity and its connection to the birthday problem

Mononen, T. & Myllymäki, P. 2008 p. 17-22. 6 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Proceedings of the First Workshop on Information Theoretic Methods in Science and Engineering, August 18-20, 2008, Tampere, Finland

Heikkonen, J. (ed.), Kontoyiannis, I. (ed.), Liski, E. P. (ed.), Myllymäki, P. (ed.), Rissanen, J. (ed.) & Tabus, I. (ed.) 2008 Tampere: Tampere International Center for Signal Processing. (Tampere International Center for Signal Processing. TICSP series; 43).

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

Recent advances in computing the NML for discrete Bayesian networks

Myllymäki, P. 2008

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Uncertainty in Artificial Intelligence: proceedings of the Twenty-Fourth Conference (2008), July 9-12, 2008, Helsinki, Finland

McAllester, D. (ed.) & Myllymäki, P. (ed.) 2008 Corvallis, Or: AUAI Press. 613 p.

Publication: Book/anthology âº C2 Edited book, compilation, conference proceeding or special issue of journal

2007

A linear-time algorithm for computing the multinomial stochastic complexity

Kontkanen, P. & Myllymäki, P. 2007 In : Information Processing Letters. 103, 6, p. 227-233. 7 p.

Publication: Contribution to journal âº A1 Refereed journal article

Calculating the normalized maximum likelihood distribution for Bayesian forests

Wettig, J. , Kontkanen, P. & Myllymäki, P. 2007 In : IADIS International Journal on Computer Science and Information Systems. 2, 2, p. 1-12. 12 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Calculating the normalized maximum likelihood distribution for Bayesian forests

Wettig, H. , Kontkanen, P. & Myllymäki, P. 2007

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Fast NML computation for naive Bayes models

Mononen, T. & Myllymäki, P. 2007 p. 151-160. 10 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Information theoretic methods for bioinformatics

Rissanen, J. , Grunwald, P. , Heikkonen, J. , Myllymäki, P. , Roos, T. & Rousu, J. 2007 In : EURASIP Journal on Bioinformatics and Systems Biology. 2007, Article ID 79128, 2 p.

Publication: Contribution to journal âº A1 Refereed journal article

MDL histogram density estimation

Kontkanen, P. & Myllymäki, P. 2007

Publication: Conference contribution âº A4 Article in conference publication (refereed)

NML computation algorithms for tree-structured multinomial Bayesian networks

Kontkanen, P. , Wettig, H. & Myllymäki, P. 2007 In : EURASIP Journal on Bioinformatics and Systems Biology. 2007, p. Article ID 90947. 11 p.

Publication: Contribution to journal âº A1 Refereed journal article

On sensitivity of the MAP Bayesian network structure to the equivalent sample size parameter

Silander, T. , Kontkanen, P. & Myllymäki, P. 2007 p. 360-367. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Probabilistic model for a positioning technique

Misikangas, P. & Myllymäki, P. 24.05.2007 G01S 3/02 (20060101); H04Q 7/20 (20060101) 27.03.2007

Publication: Patent âº H1 Patents

2006

A Compression-Based Method for Stemmatic Analysis

Roos, T. T. , Heikkilä, T. & Myllymäki, P. 2006 p. 805-806. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

A simple approach for finding the globally optimal Bayesian network structure

Silander, T. & Myllymäki, P. 2006 p. 445-452. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Generalization to unseen cases

Roos, T. , Myllymäki, P. , Grunwald, P. & Tirri, H. 2006 p. 1129-1136. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Information-theoretically optimal histogram density estimation

Kontkanen, P. & Myllymäki, P. 2006 Espoo: Helsinki Institute for Information Technology. 10 p. (HIIT Technical Reports; 2006-2).

Publication: Book/anthology âº D4 Published development or research report

P-Course: medical applications of Bayesian classification with informative priors

Lahtinen, J. , Myllymäki, P. & Ryynänen, O-P. 2006 p. 38-40. 3 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Sairaalaan lähettämisen arviointi Bayesin verkkomallilla

Ryynänen, O-P. , Puhakka, M. , Myllymäki, P. , Palomäki, P. , Anttonen, V. , Jukola, R. & Takala, J. 2006 In : Suomen lääkärilehti. 61, 51, p. 5353-5358. 6 p.

Publication: Contribution to journal âº A1 Refereed journal article

2005

A fast normalized maximum likelihood algorithm for multinomial data

Kontkanen, P. & Myllymäki, P. 2005 p. 1613-1615. 3 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

A testbed for proactive information retrieval

Miettinen, M. , Tuulos, V. & Myllymäki, P. 2005 p. 137-146. 10 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

An MDL framework for data clustering

Kontkanen, P. , Myllymäki, P. , Buntine, W. , Rissanen, J. & Tirri, H. 2005 In: Advances in minimum description length. Cambridge (Mass.): MIT Press, p. 323-353. 31 p.

Publication: Contribution to book/anthology âº A3 Contribution to book/other compilations (refereed)

Analyzing the stochastic complexity via tree polynomials

Kontkanen, P. & Myllymäki, P. 2005 10 p. (HIIT Technical Reports 2005-4).

Publication: Book/anthology âº D4 Published development or research report

Compression-based stemmatology: A study of the legend of St. Henry of Finland

Roos, T. T. , Heikkilä, T. , Cilibrasi, R. & Myllymäki, P. 2005 20 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Computing the regret table for multinomial data

Kontkanen, P. & Myllymäki, P. 2005 (HIIT Technical Reports; 2005-1).

Publication: Book/anthology âº D4 Published development or research report

Error estimate concerning a target device's location operable to move in a wireless environment

Myllymäki, P. , Kontkanen, P. , Roos, T. , Valtonen, K. , Lahtinen, J. , Wettig, J. , Tuominen, A. T. & Tirri, H. 16.06.2005 H04Q 7/20 24.04.2007

Publication: Patent âº H1 Patents

On discriminative Bayesian network classifiers and logistic regression

Roos, T. , Wettig, H. , Grunwald, P. , Myllymäki, P. & Tirri, H. 2005 In : Machine Learning. 59, 3, p. 267-296. 30 p.

Publication: Contribution to journal âº A1 Refereed journal article

On the behavior of MDL denoising

Roos, T. , Myllymäki, P. & Tirri, H. 2005 p. 309-316. 8 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

Sequence-based positioning technique

Misikangas, P. & Myllymäki, P. 23.06.2005 H04M11/04 25.03.2008

Publication: Patent âº H1 Patents

User models from implicit feedback for proactive information retrieval

Kaski, S. , Myllymäki, P. & Kojo, I. 2005 p. 25-26. 2 p.

Publication: Conference contribution âº A4 Article in conference publication (refereed)

2004

Location estimation in wireless telecommunication networks

Myllymäki, P. , Tirri, H. , Kontkanen, P. , Lahtinen, J. , Silander, T. , Roos, T. T. , Tuominen, A. T. , Valtonen, K. & Wettig, J. 15.04.2004 H04Q 7/20 05.06.2007

Publication: Patent âº H1 Patents

2001

Visualization method and visualization system

Kontkanen, P. , Lahtinen, J. , Myllymäki, P. , Silander, T. , Tirri, H. & Valtonen, K. 11.01.2001 G06T 29.03.2005

Publication: Patent âº H1 Patents

Address: Department of Computer Science, P.O. 68 (Gustaf Hällströmin katu 2b), FI-00014 UNIVERSITY OF HELSINKI, FINLAND
Opening Hours: During spring and autumn semesters Mon - Fri 7.45 - 19.45 (7.45 am - 7.45 pm)
Phone: +358 9 1911 (University switch)
General e-mail: info [at] cs.helsinki.fi
Fax: +358 9 1915 1120

Petri Myllymäki

Contact Information

Principal Investigator of

Examiner for exams

TodennäköisyysmallitSannolikhetsmodellerProbabilistic Models

Teaching

2014 spring Project in Probabilistic Models Övningsarbete i sannolikhetsmodeller Todennäköisyysmallien harjoitustyö

2014 spring Probabilistic Models Sannolikhetsmodeller Todennäköisyysmallit

2013 spring Probabilistic Models Sannolikhetsmodeller Todennäköisyysmallit

2011 spring Probabilistic Models Sannolikhetsmodeller Todennäköisyysmallit

2011 spring Seminar on Intelligent Systems Seminar on Intelligent Systems Seminar on Intelligent Systems

2010 spring AI for Games II AI for Games II AI for Games II

2009 spring Project in Probabilistic Models Övningsarbete i sannolikhetsmodeller Todennäköisyysmallien harjoitustyö

2009 spring Probabilistic Models Sannolikhetsmodeller Todennäköisyysmallit

2007 spring Three concepts: probability Tre begrepp: sannolikhet Kolme käsitettä: todennäköisyys

2006 autumn Three concepts: information Tre begrepp: information Kolme käsitettä: informaatio

2006 spring Three concepts: probability Tre begrepp: sannolikhet Kolme käsitettä: todennäköisyys

2005 autumn Graphical Models Graphical Models Graphical Models

2005 spring Three concepts: information Tre begrepp: information Kolme käsitettä: informaatio

2004 autumn Research Seminar in Intelligent Systems r Älykkäiden järjestelmien tutkimusseminaari

2004 spring Three concepts: probability Tre begrepp: sannolikhet Kolme käsitettä: todennäköisyys

2003 autumn Graphical Models Graphical Models Graphical Models

2003 spring Research Seminar on Causal Models s Kausaalimallien tutkimusseminaari

2001 spring Advance registration for seminars Förhandsanmälan till seminarierna Seminaarien ennakkoilmoittautuminen

Publications

2012

2011

2010

2009

2008

2007

2006

2005

2004

2001

Todennäköisyysmallit
Sannolikhetsmodeller
Probabilistic Models

2014 spring
Project in Probabilistic Models

Övningsarbete i sannolikhetsmodeller

Todennäköisyysmallien harjoitustyö

2014 spring
Probabilistic Models

Sannolikhetsmodeller

Todennäköisyysmallit

2013 spring
Probabilistic Models

Sannolikhetsmodeller

Todennäköisyysmallit

2011 spring
Probabilistic Models

Sannolikhetsmodeller

Todennäköisyysmallit

2011 spring
Seminar on Intelligent Systems

Seminar on Intelligent Systems

Seminar on Intelligent Systems

2010 spring
AI for Games II

AI for Games II

AI for Games II

2009 spring
Project in Probabilistic Models

Övningsarbete i sannolikhetsmodeller

Todennäköisyysmallien harjoitustyö

2009 spring
Probabilistic Models

Sannolikhetsmodeller

Todennäköisyysmallit

2007 spring
Three concepts: probability

Tre begrepp: sannolikhet

Kolme käsitettä: todennäköisyys

2006 autumn
Three concepts: information

Tre begrepp: information

Kolme käsitettä: informaatio

2006 spring
Three concepts: probability

Tre begrepp: sannolikhet

Kolme käsitettä: todennäköisyys

2005 autumn
Graphical Models

Graphical Models

Graphical Models

2005 spring
Three concepts: information

Tre begrepp: information

Kolme käsitettä: informaatio

2004 autumn
Research Seminar in Intelligent Systems

r

Älykkäiden järjestelmien tutkimusseminaari

2004 spring
Three concepts: probability

Tre begrepp: sannolikhet

Kolme käsitettä: todennäköisyys

2003 autumn
Graphical Models

Graphical Models

Graphical Models

2003 spring
Research Seminar on Causal Models

s

Kausaalimallien tutkimusseminaari

2001 spring
Advance registration for seminars

Förhandsanmälan till seminarierna

Seminaarien ennakkoilmoittautuminen