Learning Noisy-Or Networks with an Application in Linguistics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15210%2F22%3A73618985" target="_blank" >RIV/61989592:15210/22:73618985 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985556:_____/22:00561324

Výsledek na webu

<a href="https://proceedings.mlr.press/v186/kratochvil22a/kratochvil22a.pdf" target="_blank" >https://proceedings.mlr.press/v186/kratochvil22a/kratochvil22a.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Learning Noisy-Or Networks with an Application in Linguistics

Popis výsledku v původním jazyce

In this paper we discuss the issue of learning Bayesian networks whose conditional probability tables (CPTs) are either noisy-or models or general CPTs. We refer to these models as Mixed Noisy-Or Bayesian Networks. In order to learn the structure of such Bayesian networks we modify the Bayesian Information Criteria (BIC) used for general Bayesian networks so that it reflects the number of parameters of a noisy-or model. We prove the log-likelihood function of a noisy-or model has a unique maximum and adapt the EM-learning method for leaky noisy-or models. We evaluate the proposed approach on synthetic data where it performs substantially better than general BNs. We apply this approach also to a problem from the domain of linguistics. We use Mixed Noisy-Or Bayesian Networks to model spread of loanwords in the South-East Asia Archipelago. We perform numerical experiments in which we compare prediction ability of general Bayesian Networks with Mixed Noisy-Or Bayesian Networks.

Název v anglickém jazyce

Learning Noisy-Or Networks with an Application in Linguistics

Popis výsledku anglicky

In this paper we discuss the issue of learning Bayesian networks whose conditional probability tables (CPTs) are either noisy-or models or general CPTs. We refer to these models as Mixed Noisy-Or Bayesian Networks. In order to learn the structure of such Bayesian networks we modify the Bayesian Information Criteria (BIC) used for general Bayesian networks so that it reflects the number of parameters of a noisy-or model. We prove the log-likelihood function of a noisy-or model has a unique maximum and adapt the EM-learning method for leaky noisy-or models. We evaluate the proposed approach on synthetic data where it performs substantially better than general BNs. We apply this approach also to a problem from the domain of linguistics. We use Mixed Noisy-Or Bayesian Networks to model spread of loanwords in the South-East Asia Archipelago. We perform numerical experiments in which we compare prediction ability of general Bayesian Networks with Mixed Noisy-Or Bayesian Networks.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10103 - Statistics and probability

Projekt

<a href="/cs/project/GA20-18407S" target="_blank" >GA20-18407S: Automatizace analýzy slovesných tříd pro ohrožené jazyky - RoboCorp</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of Machine Learning Research:Volume 186: International Conference on Probabilistic Graphical Models, 5-7 October 2022, Almerı́a, Spain

ISBN

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ISSN

2640-3498

e-ISSN

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Počet stran výsledku

12

Strana od-do

277-288

Název nakladatele

Proceedings of Machine Learning Research

Místo vydání

Almería

Místo konání akce

Almería

Datum konání akce

5. 10. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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