Link Discovery TutorialPart V: Hands-On

Axel-Cyrille Ngonga Ngomo(1), Irini Fundulaki(2), Mohamed Ahmed Sherif(1)

(1) Institute for Applied Informatics, Germany(2) FORTH, Greece

October 18th, 2016Kobe, Japan

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Table of Contents

1 Test Dataset

2 Task I: Execute given Limes Configuration

3 Task II: Create your first Limes Configuration

4 Task III: Use Limes GUI

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Table of Contents

1 Test Dataset

2 Task I: Execute given Limes Configuration

3 Task II: Create your first Limes Configuration

4 Task III: Use Limes GUI

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Test Dataset

Semantic Web Dog Food CorpusData exposed: Metadata (papers, presentations, people) for several semantic webrelated conferences and workshops, including the most recent ISWC, ESWC andWWW events.

Dumps: http://data.semanticweb.org/dumpsEndpoint: http://data.semanticweb.org/sparqlDataHub: https://datahub.io/dataset/semantic-web-dog-foodDownload:http://iswc2016ldtutorial.aksw.org/tutorial-material/

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Table of Contents

1 Test Dataset

2 Task I: Execute given Limes Configuration

3 Task II: Create your first Limes Configuration

4 Task III: Use Limes GUI

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Task I: DeduplicationExecute the given Configuration File

Decentralized nature of LODData contain duplicatesHow to efficiently detect similar resources?

Task IFind duplicate authors in Semantic Web Dog Food Dataset

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Task I: DeduplicationExecute the given Configuration File

Decentralized nature of LODData contain duplicatesHow to efficiently detect similar resources?

Task IFind duplicate authors in Semantic Web Dog Food Dataset

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Limes Configuration FilePREFIXes

<PREFIX ><NAMESPACE >http :// www.w3.org /2000/01/ rdf - schema #</ NAMESPACE ><LABEL >rdfs </ LABEL >

</ PREFIX >

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Limes Configuration FileSOURCE and TARGET datasets

<SOURCE ><ID >SDF1 </ID ><ENDPOINT >semanticDogFood .nt </ ENDPOINT ><VAR >?x</VAR ><PAGESIZE > -1</ PAGESIZE ><RESTRICTION >?x a foaf: Person </ RESTRICTION ><PROPERTY >rdfs: label </ PROPERTY ><TYPE >NT </TYPE >

</ SOURCE >

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Limes Configuration FileMETRIC

<METRIC >Levenshtein (x.rdfs: label , y.rdfs: label )</ METRIC >

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Limes Configuration FileACCEPTANCE and REVIEW

<ACCEPTANCE ><THRESHOLD >0.9 </ THRESHOLD ><FILE >similarAuthor .nt </FILE ><RELATION >ov: similarTo </ RELATION >

</ ACCEPTANCE >

<REVIEW ><THRESHOLD >0.5 </ THRESHOLD ><FILE >similarAuthor_review .nt </FILE ><RELATION >owl: sameAs </ RELATION >

</ REVIEW >

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Limes Configuration FileOUTPUT format

<OUTPUT >TTL </ OUTPUT >

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Task IRun Limes

Run Limesjava -jar limes-core-1.0.0.jar task1.xml

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Task IUsing Machine Learning

<MLALGORITHM ><NAME >wombat simple </NAME ><TYPE >unsupervised </TYPE >

</ MLALGORITHM >

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Table of Contents

1 Test Dataset

2 Task I: Execute given Limes Configuration

3 Task II: Create your first Limes Configuration

4 Task III: Use Limes GUI

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Task IIFind similar publications

1 Find publications2 with similar keyword, but do not link any publication to itself

1. Find publications?x a swrc:InProceedings

?y a swrc:InProceedings

2. with similar keyword, but do not link any publication to itselfMINUS(jaccard(x.swrc:listKeyword , y.swrc:listKeyword)|0.3,ExactMatch(x.swrc:listKeyword , y.swrc:listKeyword)|1.0)

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Task IIFind similar publications

1 Find publications2 with similar keyword, but do not link any publication to itself

1. Find publications?x a swrc:InProceedings

?y a swrc:InProceedings

2. with similar keyword, but do not link any publication to itselfMINUS(jaccard(x.swrc:listKeyword , y.swrc:listKeyword)|0.3,ExactMatch(x.swrc:listKeyword , y.swrc:listKeyword)|1.0)

Ngonga Ngomo et al. (InfAI & FORTH) LD Tutorial: Hands-On October 17, 2016 15 / 19

Task IIFind similar publications

1 Find publications2 with similar keyword, but do not link any publication to itself

1. Find publications?x a swrc:InProceedings

?y a swrc:InProceedings

2. with similar keyword, but do not link any publication to itselfMINUS(jaccard(x.swrc:listKeyword , y.swrc:listKeyword)|0.3,ExactMatch(x.swrc:listKeyword , y.swrc:listKeyword)|1.0)

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Table of Contents

1 Test Dataset

2 Task I: Execute given Limes Configuration

3 Task II: Create your first Limes Configuration

4 Task III: Use Limes GUI

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Task IIIUse Limes GUI

Run Limes GUIjava -jar limes-core-1.0.0.jar -g

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Acknowledgment

This work was supported by grants from the EU H2020 Framework Programmeprovided for the project HOBBIT (GA no. 688227).

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References I

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