Collection of Categorized Web Services

For our work on machine learning for the annotation of web services we have gathered WSDL files from salcentral and XMethods and organized them in a hierarchy.

Downloads

• Hierarchically classified web services

Instructions

The web services are hierarchically classified. The directory structure serves as the label, i.e. a wsdl file in the communication\mail directory was classified as a "mail" webservice, where "mail" is a subclass of "communication".

The labeled instances were crawled from the SALCentral website, the unlabeled instances (in directory "unlabelled") are from the xmethods website.

Each .wsdl file is accompanied by a .txt file with the following structure:

1. line = service provider
2. line = original classification by SALCentral
3. line = service name
4. line = URL of the original WSDL file on the Web
5. line = Plain text description of the service crawled from the SALCentral/xmethods web page

Note that the SALCentral classification is not very useful (that's why we wanted to have our own...)

The filenames are serviceNN.OriginalClassification.[txt|wsdl], where OriginalClassification refers to the label assigned by SALCentral. The XMethods web site does not categorize the web services, therefore line 2 in the .txt files for the unlabeled instances is always "XMethods".

The classes are highly unbalanced and unfortunately not noise-free.

Related Publications

• Heß, A. & Kushmerick, N. (2004)
  Machine Learning for Annotating Semantic Web Services (.pdf) | (.ps.gz)
  AAAI Spring Symposium Semantic Web Services 2004
• Heß, A. & Kushmerick, N. (2003)
  Learning to Attach Semantic Metadata to Web Services (.pdf) | (.ps.gz) | (RDF annotated abstract)
  © Springer Verlag, Lecture Notes in Computer Science
  2nd International Semantic Web Conference (ISWC2003)
• Heß, A. & Kushmerick, N. (2003)
  Automatically Attaching Semantic Metadata to Web Services (.pdf) | (.ps.gz)
  IJCAI-2003 Workshop on Information Integration on the Web