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A Systematic Investigation of Explicit and Implicit Schema Information on the Linked Open Data Cloud

Published on Jul 08, 20133372 Views

Schema information about resources in the Linked Open Data (LOD) cloud can be provided in a twofold way: it can be explicitly defined by attaching RDF types to the resources. Or it is provided implici

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Chapter list

A Systematic Investigation of Explicit and Implicit Schema Information on the Linked Open Data Cloud00:00
Explicit and Implicit Schema Information on LOD00:35
Main questions03:22
Outline04:03
Probabilistic model of schema information04:50
Estimating probabilities06:36
Question a)08:33
a) Normalized marginal entropy10:17
Question b)-c)11:25
b)-c) Expected conditional entropy - 112:28
b)-c) Expected conditional entropy - 213:44
b)-c) Expected conditional entropy - 314:07
Question d)15:24
d) Normalized Mutual Information (Redundancy) - 115:54
d) Normalized Mutual Information (Redundancy) - 216:17
d) Normalized Mutual Information (Redundancy) - 316:30
Summary19:14
Thanks!20:57