@inproceedings{ubo_mods_00115757,
  author = {Loepp, Benedikt and Ziegler, Jürgen},
  title = {Recommending Running Routes: Framework and Demonstrator},
  booktitle = {Proceedings of the 2nd Second Workshop on Recommendation in Complex Scenarios (ComplexRec ’18)},
  year = {2018},
  pages = {26–29},
  keywords = {Sports},
  url = {http://toinebogers.com/workshops/complexrec2018/resources/proceedings.pdf#page=26},
  abstract = {Recommending personalized running routes is a challenging task. When the runner’s specific background as well as needs, preferences and goals are taken into account, a recommender cannot only rely on e.g. a set of existing routes ran by others, but needs to individually generate each route while considering many different aspects that determine whether a suggestion will satisfy the runner in the end, e.g. height meters or areas passed. We describe a framework that summarizes these aspects, allowing to generate personalized running routes. Based on this framework, we present a prototypical smartphone app that we implemented to actually demonstrate how running routes can be recommended based on the different requirements a runner might have. A first small study where users had to try this app and ran some of the recommended routes underlines the general effectiveness of our approach.}
}


@inproceedings{ubo:48984,
  author = {Loepp, Benedikt and Ziegler, Jürgen},
  chapter = {},
  title = {Komplexe Präferenzprofile für intermodale Navigation},
  year = {2014},
  publisher = {De Gruyter Oldenbourg},
  address = {Berlin},
  isbn = {978-3-11-034450-9},
  doi = {10.1524/9783110344509.191},
  url = {http://dx.doi.org/10.1524/9783110344509.191},
  pages = {191–198},
  abstract = {In diesem Beitrag präsentieren wir Aspekte, die für Nutzer im Kontext intermodaler Navigation von 
 Bedeutung  sind  und  durch  komplexe  Präferenzprofile  abgebildet  werden  können.  Neben  einer  Herleitung und Klassifikation solch potenzieller Nutzeranforderungen an die Anpassung von Mobilitätsketten  −  beispielsweise  an  individuelle Präferenzen  wie  den  energetischen  Fußabdruck  oder das  gewünschte Maß an Komfort  – stellen wir  einen Prototypen vor, der einen ersten Schritt hin zu einer interaktiven, stark individualisierbaren Unterstützung intermodaler Navigation darstellt. },
  booktitle = {Mensch und Computer 2014 – Workshopband}
}


@inproceedings{ubo:26213,
  author = {Joop, Björn and Ziegler, Jürgen},
  chapter = {},
  title = {Group context-based adaptations for recommendation},
  year = {2010},
  address = {Hong Kong, China},
  abstract = {In groupware or community based applications the user
 interface is usually static or tailored to the individual user’s
 needs. Newer developments try to adapt the user interface
 automatically in regard to user contexts. Even though these
 techniques are proven useful, there exists no contextadaptive
 system taking the current context of a group or
 community in regard. In this paper, we briefly discuss the
 problems of defining context and present our understanding
 of context as a subset of the current information state. We
 provide an exemplary scenario to present different
 approaches how to compute group contexts based on
 semantic models and user contexts, and the consequences
 for the adaptation goals - in the interface or through
 changes at system functionalities or tools. We additionally
 discuss the problems occurring at evaluating adaptations
 and the value of group context for collaborative work.},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=22545},
  booktitle = {Semantic Models for Adaptive Interactive Systems (SEMAIS), 1st Workshop in conjunction with the International Conference on Intelligent User Interfaces (IUI) 2010.}
}


@inproceedings{ubo:26214,
  author = {Joop, Björn and Ziegler, Jürgen},
  editor = {Baloian, Nelson and Luther, Wolfram and Söffker, Dirk and Urano, Yoshiyori},
  chapter = {},
  title = {A framework for context-based adaptation (for collaboration)},
  year = {2010},
  address = {Berlin: Logos},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=22547},
  abstract = {The topic of our talk focuses on definitions of context and approaches in computer science to model context in adaptive or context-aware systems. We present briefly an own context-understanding, a multi-layered framework for context-based adaptation. We present some current examples for context-based adaptation and conclude with some further thoughts about adding unstructured information such as tags to our context understanding to be able to mediate knowledge between different contexts and users.},
  booktitle = {Interfaces and Interaction Design for Learning and Simulation Environments}
}


@incollection{ubo_mods_00027852,
  author = {Hussein, Tim and Münter, Daniel and Gaulke, Werner},
  editor = {Hussein, Tim and Haake, Jörg and Lukosch, Stephan and Pipek, Volkmar},
  title = {Use-Cases zur Validierung generischer Adaptiver Ansätze},
  booktitle = {EASYS ’10: Proceedings des ersten Workshops zur Evaluation Adaptiver Systeme},
  year = {2010},
  address = {Duisburg},
  pages = {1–8},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=23732},
  abstract = {Es gibt eine Vielzahl an adaptiven Systemen, Frameworks oder Modellen, die den Anspruch aufstellen, generisch Anwendbar zu sein. Ist eine Evaluation oder Validierung derartiger Systeme ohnehin schon anspruchsvoll, so ist der Nachweis der generellen Anwendbarkeit eine noch größere Herausforderung. In diesem Artikel werden vier Use-Cases vorgestellt, mit denen derartige Ansätze auf ihre allgemeine Anwendbarkeit hin untersucht werden können. Ist es möglich, alle vier Szenarien mit dem Ansatz abzubilden bzw. umzusetzen, so kann der Anspruch auf allgemeine Anwendbarkeit aufrecht erhalten werden.}
}


@incollection{ubo_mods_00024885,
  author = {Hussein, Tim and Gaulke, Werner and Linder, Timm and Ziegler, Jürgen},
  title = {Improving collaboration by using context views},
  booktitle = {Context-Adaptive Interaction for Collaborative Work (CAICOLL), 1st Workshop in conjunction with the ACM Conference on Human Factors in Computing Systems (CHI) 2010},
  year = {2010},
  address = {Atlanta, GA, USA},
  pages = {1–6},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=22051},
  abstract = {In this paper, we explain our notion of context, considering for instance membership in a group as context. We derive a model for context-adaptivity from the well-established one for user-adaptivity proposed by Jameson, and introduce context views as means for facilitating group-based work. Context views aim at identifying the most important elements within an application in a generic way by exploiting context information.}
}


@inproceedings{ubo:24768,
  author = {Hussein, Tim},
  editor = {Baloian, Nelson and Luther, Wolfram and Söffker, Dirk and Urano, Yoshiyori},
  chapter = {},
  title = {Context-aware Recommendations},
  year = {2010},
  publisher = {Logos},
  address = {Berlin},
  abstract = {This article illustrates the vivid research field of hybrid and context-aware recommender systems. Moreover, two own approaches to deal with context-awareness in recommender systems, are described in detail.},
  isbn = {978-3-8325-2361-9},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=21924},
  booktitle = {Interfaces and Interaction Design for Learning and Simulation Environments}
}


@inproceedings{ubo:27689,
  author = {Hussein, Tim and Linder, Timm and Gaulke, Werner and Ziegler, Jürgen},
  editor = {Kolfschoten, Gwendolyn and Herrmann, Thomas and Lukosch, Stephan},
  chapter = {},
  title = {A framework and an architecture for context-aware group recommendations},
  year = {2010},
  publisher = {Springer},
  address = {Berlin},
  abstract = {In this paper, we propose a generic framework to generate context-aware recommendations for both single users as well as groups. We present the the concept of context views and an corresponding architecture implementing the framework as well as exemplary recommendation workflows for group recommendations.},
  isbn = {978-3-642-15714-1},
  url = {http://www.springerlink.com/content/et680874862602w6/},
  booktitle = {Collaboration and Technology: 16th International Conference, CRIWG 2010, Maastricht, The Netherlands, September 20-23, 2010. Proceedings}
}


@inproceedings{ubo:23454,
  author = {Joop, Björn and Hussein, Tim and Ziegler, Jürgen},
  chapter = {},
  title = {Nutzung individueller Kontextinformationen zur Verbesserung von kollaborativen Arbeiten},
  year = {2009},
  address = {Berlin},
  abstract = {Kollaborative Arbeitsprozesse werden entweder durch spezialisierte Arbeitsumgebungen gezielt unterstützt oder sind individualisierbar. Kontextbasierte Kollaborationsumgebungen können sich kontextabhängig auf die jeweilige Arbeitssituationen einstellen und so dynamisch auf Änderungen der Prozesse oder der Benutzer reagieren. In diesem Beitrag stellen wir ein Kontext-Modell vor, welches sowohl individuelle Nutzerkontexte, wie auch gemeinsamen Kontext multipler Benutzer, erfassen, repräsentieren und als Basis für Adaptionseffekte nutzen kann.},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=21069},
  booktitle = {Open Design Spaces 2009}
}


@inproceedings{ubo:22981,
  author = {Hussein, Tim and Linder, Timm and Gaulke, Werner and Ziegler, Jürgen},
  editor = {Bergmann, Lawrence},
  chapter = {},
  title = {Context-aware Recommendations on Rails},
  year = {2009},
  address = {New York, NY, USA},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=20980},
  booktitle = {Proceedings of the 2009 Workshop on Context-aware Recommender Systems (CARS 2009)}
}


@inproceedings{ubo:14866,
  author = {Hussein, Tim and Ziegler, Jürgen},
  chapter = {},
  title = {Adapting web sites by spreading activation in ontologies},
  year = {2008},
  address = {Gran Canaria},
  booktitle = {ReColl ’08: Int. Workshop on Recommendation and Collaboration (in conjunction with IUI 2008)}
}


@inproceedings{ubo:14861,
  author = {Lohmann, Steffen and Kaltz, Wolfgang J. and Ziegler, Jürgen},
  editor = {Kühne, Thomas},
  chapter = {},
  title = {Model-Driven Dynamic Generation of Context-Adaptive Web User Interfaces},
  year = {2007},
  publisher = {Springer},
  address = {Berlin, Heidelberg},
  abstract = {The systematic development of user interfaces that enhance interaction quality by adapting to the context of use is a desirable, but also highly challenging task. This paper examines to which extent contextual knowledge can be systematically incorporated in the model-driven dynamic generation of Web user interfaces that provide interaction for operational features. Three parts of the generation process are distinguished: selection, parameterization, and presentation. A semantically enriched service-oriented approach is presented that is based on the Catwalk framework for model interpretation and generation of adaptive, context-aware Web applications. Automation possibilities are addressed and an exemplary case study is presented.},
  isbn = {9783540694885},
  booktitle = {Models in Software Engineering - Workshops and Symposia at MoDELS 2006}
}


@inproceedings{ubo:16723,
  author = {Hussein, Tim and Westheide, Daniel and Ziegler, Jürgen},
  editor = {Hinneburg, Alexander},
  chapter = {},
  title = {Context-adaption based on ontologies and spreading activation},
  year = {2007},
  address = {Martin-Luther-Universität Halle-Wittenberg},
  abstract = {Ontologies and spreading activation are known terms within the scope of information retrieval. In this paper we introduce SPREADR, an integrated adaptation mechanism for web applications that uses ontologies for representing the application domain as well as context information like location, user history and local time. Those context factors can be modeled in an ontology and be linked to certain domain nodes. In each session a Spreading Activation Network is build based on those ontologies and recognized context factors or user actions can trigger an activation flow through this network. A node’s resulting activation value then represents its importance according to the current circumstances. While identically in structure, the Spreading Activation Networks are personalized by automatically modifying link weights and activation levels of nodes. As a result the system learns about the user preferences and can adjust its adaptation mechanism for future runs through implicit feedback.},
  isbn = {978-3-86010-907-6},
  booktitle = {LWA 2007: Lernen – Wissen – Adaption}
}


@inproceedings{ubo:14850,
  author = {Ziegler, Jürgen and Lohmann, Steffen and Kaltz, Wolfgang J.},
  editor = {Stary, Christian},
  chapter = {},
  title = {Kontextmodellierung für adaptive webbasierte Systeme},
  year = {2005},
  publisher = {Oldenbourg},
  address = {München},
  abstract = {Adaptive Web-Anwendungen erfordern die Berücksichtigung von Kontext zur Anpassung von Inhalten, Navigationsstrukturen und Präsentationsformen. Für eine systematische Entwicklung kontextadaptiver Systeme sind Methoden der Kontextmodellierung erforderlich, die die komplexen Abhängigkeiten
 beschreiben. In diesem Beitrag wird ein konzeptioneller Rahmen vorgestellt, der auf einer Taxonomie der verschiedenen Kontextaspekte basiert. Darüber hinaus werden unterschiedliche Mechanismen der Kontextualisierung diskutiert, die von probabilistischen Verfahren bis zu regelbasierten Techniken reichen.},
  isbn = {3486578057},
  url = {http://mc.informatik.uni-hamburg.de/konferenzbaende/mc2005/konferenzband/muc2005_16_ziegler_etal.pdf},
  booktitle = {Mensch Computer 2005: Kunst und Wissenschaft - Grenzüberschreitungen der interaktiven ART}
}


@inproceedings{ubo:14853,
  author = {Ziegler, J. and El Jerroudi, Z. and Böhm, K.},
  chapter = {},
  title = {Generating semantic contexts from spoken conversation in meetings},
  year = {2005},
  publisher = {ACM},
  address = {San Diego, California, USA},
  isbn = {1-58113-894-6},
  booktitle = {Proceedings of the 10th international conference on Intelligent user interfaces ( IUI 2005)}
}


@article{ubo:14852,
  author = {Kaltz, Wolfgang J. and Ziegler, Jürgen and Lohmann, Steffen},
  title = {Context-aware Web Engineering: Modeling and Applications},
  journal = {RIA - Revue d’Intelligence Artificielle, Special Issue on Applying Context-Management},
  year = {2005},
  volume = {19},
  number = {3},
  pages = {439–458},
  abstract = {This article presents an approach to Web Engineering which aims to account for context-awareness in a comprehensive and integrated fashion, thus enabling an enhanced adaptation of the application to the end-user. A conceptual model, permitting the combination of a domain ontology with context-relevant parameters and a degree of relevance, is presented. Subsequently, the use of such a model in a Web Engineering process is discussed, including appropriate modeling software, and requirements for a runtime system.},
  issn = {0992-499X}
}