[Solomonov Seminar] 201. Solomonov seminar

[Marko Grobelnik]

V torek 17. junija bo ob 13h v Oranzni predavalnici (sejna soba E8, 
drugo nadstropje glavne zgradbe) 201. Solomonov seminar. 
Posnetki preteklih seminarjev so na http://videolectures.net/solomon/

Tokrat bo predaval nas gost Ano Knobbe iz Utrechta o identifikaciji
posbenih (izjemnih) modelov za identifikacijo mahjnih podvzorcev v podatkih

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Arno Knobbe, Utrecht University
Title: Exceptional Model Mining

In most databases, it is possible to identify small partitions of the data 
where the observeddistribution is notably different from that of the 
database as a whole. In classical subgroup discovery, one considers 
the distribution of a single nominal attribute, and exceptional subgroups 
show a surprising increase in the occurrence of one of its values. 
In this talk, I'll introduce Exceptional Model Mining (EMM), a framework 
that allows for more complicated target concepts. Rather than finding 
subgroups based on the distribution of a single target attribute, 
EMM finds subgroups where a model fitted to that subgroup is somehow 
exceptional. I'll discuss regression as well as classification models, 
and define quality measures that determine how exceptional a given 
model on a subgroup is. Our framework is general enough to be applied 
to many types of models, even from other paradigms such as 
association analysis and graphical modeling.