lasso contextualized semantic linked open data cloud demo

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LASSO Contextualized Semantic Linked Open Data Cloud Demo Lookup & Alignment Service with Semantic Open Data 09.09.11 www.lassoproject.org 1

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DESCRIPTION

Project LASSO intends to deploy, improve and extend Linked Data (LD) infrastructure in three different use cases. Central feature of all use cases is a lookup service which helps to augment already existing, formalized knowledge with facts from the Linked Open Data (LOD) cloud. These three use cases are Semantic Desktop, Enterprise Collaboration and Inspiration Services. Currently available systems in all of these application domains are sparsely using data from the Semantic Web.http://www.lassoproject.org/

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Page 1: Lasso contextualized semantic linked open data cloud demo

www.lassoproject.org 1

LASSOContextualized Semantic Linked Open Data Cloud

Demo

Lookup & Alignment Service with Semantic Open Data

09.09.11

Page 2: Lasso contextualized semantic linked open data cloud demo

– Test-instance of a thesaurus

– Is used to evaluate test-services (e.g. Response Alignment Service)

PoolParty - Thesaurus

Page 3: Lasso contextualized semantic linked open data cloud demo

LASSO – Data Flow

Page 4: Lasso contextualized semantic linked open data cloud demo

LASSO – DBPedia Lookup

Page 5: Lasso contextualized semantic linked open data cloud demo

LASSO – algorithm functionality

Page 6: Lasso contextualized semantic linked open data cloud demo

– Test-instance of a thesaurus

– Is used to evaluate test-services (e.g. Response Alignment Service)

PoolParty – concept comparison I

Page 7: Lasso contextualized semantic linked open data cloud demo

PoolParty – concept comparison II

Page 8: Lasso contextualized semantic linked open data cloud demo

PoolParty – concept comparison III

Page 9: Lasso contextualized semantic linked open data cloud demo

Poolparty – DBPedia Details

Page 10: Lasso contextualized semantic linked open data cloud demo

Algorithm evaluationName of algorithm points

Soundex 14.25

Overlapwhitespace 11.75

Overlap 11.75

SmithWaterman 10.75

TFIDF 10.0

SoftTFIDF 9.0

overlapQGram3 9.0

WhiteSpaceStringSequenceLevenshtein

8.75

CosineSimilarity 8.25

UnsmoothedJS 8.25

– Algorithms get points for correct ranking

– Evaluation conducted with test-thesaurus

– Preliminary results

Page 11: Lasso contextualized semantic linked open data cloud demo

Further Reading

– Project blog: http://www.lassoproject.org/

– Project twitter: http://twitter.com/#!/lassoproject