Search Results for author: Henrik Nyman

Found 7 papers, 0 papers with code

Structure Learning of Contextual Markov Networks using Marginal Pseudo-likelihood

no code implementations29 Mar 2021 Johan Pensar, Henrik Nyman, Jukka Corander

Markov networks are popular models for discrete multivariate systems where the dependence structure of the variables is specified by an undirected graph.

Context-specific independence in graphical log-linear models

no code implementations9 Sep 2014 Henrik Nyman, Johan Pensar, Timo Koski, Jukka Corander

Log-linear models are the popular workhorses of analyzing contingency tables.

Marginal and simultaneous predictive classification using stratified graphical models

no code implementations31 Jan 2014 Henrik Nyman, Jie Xiong, Johan Pensar, Jukka Corander

An inductive probabilistic classification rule must generally obey the principles of Bayesian predictive inference, such that all observed and unobserved stochastic quantities are jointly modeled and the parameter uncertainty is fully acknowledged through the posterior predictive distribution.

Classification General Classification

Marginal Pseudo-Likelihood Learning of Markov Network structures

no code implementations20 Jan 2014 Johan Pensar, Henrik Nyman, Juha Niiranen, Jukka Corander

Traditionally, learning of the network structure has been done under the assumption of chordality which ensures that efficient scoring methods can be used.

Labeled Directed Acyclic Graphs: a generalization of context-specific independence in directed graphical models

no code implementations4 Oct 2013 Johan Pensar, Henrik Nyman, Timo Koski, Jukka Corander

We introduce a novel class of labeled directed acyclic graph (LDAG) models for finite sets of discrete variables.

Stratified Graphical Models - Context-Specific Independence in Graphical Models

no code implementations25 Sep 2013 Henrik Nyman, Johan Pensar, Timo Koski, Jukka Corander

Theory of graphical models has matured over more than three decades to provide the backbone for several classes of models that are used in a myriad of applications such as genetic mapping of diseases, credit risk evaluation, reliability and computer security, etc.

Computer Security

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