Semantic Need: Guiding Metadata Annotations by Questions People #ask

  • Hans-Jörg Happel
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6496)


In its core, the Semantic Web is about the creation, collection and interlinking of metadata on which agents can perform tasks for human users. While many tools and approaches support either the creation or usage of semantic metadata, there is neither a proper notion of metadata need, nor a related theory of guidance which metadata should be created. In this paper, we propose to analyze structured queries to help identifying missing metadata. We conduct a study on Semantic MediaWiki (SMW), one of the most popular Semantic Web applications to date, analyzing structured “ask”-queries in public SMW instances. Based on that, we describe Semantic Need, an extension for SMW which guides contributors to provide semantic annotations, and summarize feedback from an online survey among 30 experienced SMW users.


Semantic Annotation Conjunctive Query Structure Query Semantic Metadata Open World Assumption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Hans-Jörg Happel
    • 1
  1. 1.FZI Research Center for Information TechnologyKarlsruheGermany

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