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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1109/TPAMI.2014.2324586
|2 doi
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|a eng
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| 100 |
1 |
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|a Palla, Konstantina
|e verfasserin
|4 aut
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| 245 |
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|a Relational Learning and Network Modelling Using Infinite Latent Attribute Models
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| 264 |
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|c 2015
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 27.05.2016
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|a Date Revised 10.09.2015
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|a published: Print
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|a Citation Status MEDLINE
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|a Latent variable models for network data extract a summary of the relational structure underlying an observed network. The simplest possible models subdivide nodes of the network into clusters; the probability of a link between any two nodes then depends only on their cluster assignment. Currently available models can be classified by whether clusters are disjoint or are allowed to overlap. These models can explain a "flat" clustering structure. Hierarchical Bayesian models provide a natural approach to capture more complex dependencies. We propose a model in which objects are characterised by a latent feature vector. Each feature is itself partitioned into disjoint groups (subclusters), corresponding to a second layer of hierarchy. In experimental comparisons, the model achieves significantly improved predictive performance on social and biological link prediction tasks. The results indicate that models with a single layer hierarchy over-simplify real networks
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|a Journal Article
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 700 |
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|a Knowles, David A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ghahramani, Zoubin
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t IEEE transactions on pattern analysis and machine intelligence
|d 1979
|g 37(2015), 2 vom: 01. Feb., Seite 462-74
|w (DE-627)NLM098212257
|x 1939-3539
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|g volume:37
|g year:2015
|g number:2
|g day:01
|g month:02
|g pages:462-74
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|u http://dx.doi.org/10.1109/TPAMI.2014.2324586
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