The topics they are a-changing - characterising topics with time-stamped semantic graphs

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Abstract

DBpedia has become one of the major sources of structured knowledge extracted from Wikipedia. Such structures gradually re-shape the representation of Topics as new events relevant to such topics emerge. Such changes make evident the continuous evolution of topic representations and introduce new challenges to supervised topic classification tasks, since labelled data can rapidly become outdated. Here we analyse topic changes in DBpedia and propose the use of semantic features as a more stable representation of a topic. Our experiments show promising results in understanding how the relevance of features to a topic changes over time.

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  • Characterising topics with time-stamped semantic graphs

    Rights statement: Cano, AE, He, Y & Alani, H 2014, 'The topics they are a-changing - characterising topics with time-stamped semantic graphs'. Proc. ISWC 2014 posters & demonstrations track: a track within the 13th International Semantic Web Conference (ISWC 2014), Riva del Garda, Italy, 19-23 October, ceur-ws.org/Vol-1272/paper_124.pdf

    Final published version, 815 KB, PDF-document

Details

Publication date24 Oct 2014
Publication titleISWC-P&D 2014 : ISWC 2014 posters & demonstrations track : proceedings of the ISWC 2014 posters & demonstrations track: a track within the 13th International Semantic Web Conference (ISWC 2014)
EditorsMatthew Horridge, Marco Rospocher, Jacco van Ossenbruggen
PublisherCEUR-WS.org
Pages409-412
Number of pages4
Original languageEnglish
Event13th International Semantic Web Conference - Riva del Garda, Italy

Publication series

NameCEUR workshop proceedings
PublisherCEUR
Volume1272
ISSN (Print)1613-0073

Conference

Conference13th International Semantic Web Conference
Abbreviated titleISWC 2014
CountryItaly
CityRiva del Garda
Period19/10/1423/10/14

Bibliographic note

Cano, AE, He, Y & Alani, H 2014, 'The topics they are a-changing - characterising topics with time-stamped semantic graphs'. Proc. ISWC 2014 posters & demonstrations track: a track within the 13th International Semantic Web Conference (ISWC 2014), Riva del Garda, Italy, 19-23 October, ceur-ws.org/Vol-1272/paper_124.pdf

    Keywords

  • concept drift, DBpedia, feature relevance decay, social media, topic detection

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