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

Published on 2013-07-083375 Views

Thomas Gottron

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

ESWC 2013 - Montpellier

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Presentation

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