@book{KuropkaMeyer2005,
  author    = {Kuropka, Dominik and Meyer, Harald},
  title     = {Survey on service composition},
  series = {Technische Berichte des Hasso-Plattner-Instituts f{\"u}r Softwaresystemtechnik an der Universit{\"a}t Potsda},
  volume    = {10},
  journal   = {Technische Berichte des Hasso-Plattner-Instituts f{\"u}r Softwaresystemtechnik an der Universit{\"a}t Potsda},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {3-937786-78-3},
  issn      = {1613-5652},
  pages     = {35 S.},
  year      = {2005},
  language  = {en}
}
@book{KuropkaMeyer2005,
  author    = {Kuropka, Dominik and Meyer, Harald},
  title     = {Survey on Service Composition},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {3-937786-78-3},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-33787},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {35},
  year      = {2005},
  abstract  = {It is predicted that Service-oriented Architectures (SOA) will have a high impact on future electronic business and markets. Services will provide an self-contained and standardised interface towards business and are considered as the future platform for business-to-business and business-toconsumer trades. Founded by the complexity of real world business scenarios a huge need for an easy, flexible and automated creation and enactment of service compositions is observed. This survey explores the relationship of service composition with workflow management—a technology/ concept already in use in many business environments. The similarities between the both and the key differences between them are elaborated. Furthermore methods for composition of services ranging from manual, semi- to full-automated composition are sketched. This survey concludes that current tools for service composition are in an immature state and that there is still much research to do before service composition can be used easily and conveniently in real world scenarios. However, since automated service composition is a key enabler for the full potential of Service-oriented Architectures, further research on this field is imperative. This survey closes with a formal sample scenario presented in appendix A to give the reader an impression on how full-automated service composition works.},
  language  = {en}
}
@book{MeyerKuropka2005,
  author    = {Meyer, Harald and Kuropka, Dominik},
  title     = {Requirements for service composition},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-937786-81-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-33096},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {27},
  year      = {2005},
  abstract  = {1 Introduction 2 Use case Scenario 3 General Composition Requirements 4 Functional Requirements of Service Composition 5 Non-Functional Requirements 6 Conclusion},
  language  = {en}
}
@book{PolyvyanyyKuropka2007,
  author    = {Polyvyanyy, Artem and Kuropka, Dominik},
  title     = {A Quantitative Evalution of the Enhanced Topic-based Vector Space Model},
  series = {Technische Berichte des Hasso-Plattner-Instituts f{\"u}r Softwaresystemtechnik an der Universit{\"a}t Potsda},
  volume    = {19},
  journal   = {Technische Berichte des Hasso-Plattner-Instituts f{\"u}r Softwaresystemtechnik an der Universit{\"a}t Potsda},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-939469-95-7},
  issn      = {1613-5652},
  pages     = {88 S.},
  year      = {2007},
  language  = {en}
}
@book{PolyvyanyyKuropka2007,
  author    = {Polyvyanyy, Artem and Kuropka, Dominik},
  title     = {A quantitative evaluation of the enhanced topic-based vector space model},
  isbn      = {978-3-939469-95-7},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-33816},
  publisher      = {Universit{\"a}t Potsdam},
  year      = {2007},
  abstract  = {This contribution presents a quantitative evaluation procedure for Information Retrieval models and the results of this procedure applied on the enhanced Topic-based Vector Space Model (eTVSM). Since the eTVSM is an ontology-based model, its effectiveness heavily depends on the quality of the underlaying ontology. Therefore the model has been tested with different ontologies to evaluate the impact of those ontologies on the effectiveness of the eTVSM. On the highest level of abstraction, the following results have been observed during our evaluation: First, the theoretically deduced statement that the eTVSM has a similar effecitivity like the classic Vector Space Model if a trivial ontology (every term is a concept and it is independet of any other concepts) is used has been approved. Second, we were able to show that the effectiveness of the eTVSM raises if an ontology is used which is only able to resolve synonyms. We were able to derive such kind of ontology automatically from the WordNet ontology. Third, we observed that more powerful ontologies automatically derived from the WordNet, dramatically dropped the effectiveness of the eTVSM model even clearly below the effectiveness level of the Vector Space Model. Fourth, we were able to show that a manually created and optimized ontology is able to raise the effectiveness of the eTVSM to a level which is clearly above the best effectiveness levels we have found in the literature for the Latent Semantic Index model with compareable document sets.},
  language  = {en}
}