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Building semantic descriptions of sourses
Published on Sep 05, 20112845 Views
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Chapter list
Building Semantic Descriptions of Sources00:00
Linked Open Data and Services00:34
Where do the Semantics Come From?01:49
Outline of the Talk - 107:49
Outline of the Talk - 208:26
Building and linking ontologies of linked data [Parundekar et al., ISWC 2010]08:32
Disjoint Schemas09:21
Objective 1: Find Schema Alignments09:27
Ontologies of Linked Data09:38
Traditional Alignments11:52
Restriction Classes12:53
Objective 2: Find Alignments Between Restriction Classes14:10
Nature of Restriction Classes14:52
Extensional Approach to Ontology Alignment16:56
Alignment Hypotheses20:43
Exploration of Hypotheses Search Space22:08
Example Alignments from LinkedGeoData, Geonames, and DBpedia23:10
Outline of the Talk - 330:24
Building semantic web services from the Deep Web [Ambite et al., ISWC 2009]31:50
Approach33:59
Seed Source35:18
Automatically Discover and Build Semantic Web Services for Related Sources35:58
Integrated Approach36:28
Semantic Typing [Lerman, Plangprasopchok, & Knoblock]41:43
Inducing Source Definitions44:48
Generating Plausible Definition47:12
Invoke and Compare the Definition48:48
Constructing Semantic Web Services50:38
Evaluation on Multiple Domains51:23
Accuracy of the Models54:22
Outline of the Talk - 458:15
Discussion01:00:29
Some Challenges01:01:51