@inproceedings{ubo:48983,
  author = {Herrmanny, Katja and Schering, Sandra and Berger, Ralf and Loepp, Benedikt and Günter, Timo and Hussein, Tim and Ziegler, Jürgen},
  chapter = {},
  title = {MyMovieMixer: Ein hybrider Recommender mit visuellem Bedienkonzept},
  year = {2014},
  publisher = {De Gruyter Oldenbourg},
  address = {Berlin},
  pages = {45–54},
  doi = {10.1524/9783110344486.45},
  url = {http://dx.doi.org/10.1524/9783110344486.45},
  abstract = {In diesem Beitrag stellen wir ein neuartiges, auf direkter Manipulation beruhendes Bedienkonzept für komplexe  hybride  Empfehlungssysteme  anhand  des  von  uns  entwickelten  Film-Recommenders MyMovieMixer  vor. Der Ansatz ermöglicht es den Nutzern, ein hybrides Recommender-System mit einem komplexen Zusammenwirken verschiedener Filtermethoden durch interaktive und visuelle Methoden intuitiv zu steuern. Gleichzeitig wird die Transparenz der Empfehlungsgenerierung deutlich erhöht. Die Ergebnisse einer empirischen Evaluation des Systems zeigen, dass der Ansatz in Bezug auf Usability, User Experience, Intuitivität, Transparenz, wahrgenommene Empfehlungsqualität und somit letztlich im Hinblick auf die Nutzerzufriedenheit vielversprechend ist. },
  booktitle = {Mensch und Computer 2014 – Tagungsband}
}


@inproceedings{ubo:46601,
  author = {Loepp, Benedikt and Hussein, Tim and Ziegler, Jürgen},
  chapter = {},
  title = {Choice-based Preference Elicitation for Collaborative Filtering Recommender Systems},
  year = {2014},
  pages = {3085–3094},
  publisher = {ACM},
  address = {New York, NY, USA},
  isbn = {978-1-4503-2473-1},
  doi = {10.1145/2556288.2557069},
  abstract = {We  present  an  approach  to  interactive  recommending  that combines the advantages of algorithmic techniques with the benefits  of  user-controlled,  interactive  exploration  in  a novel  manner.  The  method  extracts  latent  factors  from  a matrix of user rating data as commonly used in Collaborative Filtering, and generates dialogs in which the user iteratively chooses between two sets of sample items. Samples are chosen by the system for  low and high values of each latent  factor  considered. The method  positions  the  user  in the latent factor space with few interaction steps, and finally selects items near the user position as recommendations. 
 In a user study, we compare the system with three alternative  approaches  including  manual  search  and  automatic recommending. The results show significant advantages of our  approach  over  the  three  competing  alternatives  in  15 out of 24 possible parameter comparisons, in particular with respect to item fit, interaction effort and user control. The findings  corroborate  our  assumption  that  the  proposed method  achieves  a  good  trade-off  between  automated  and interactive functions in recommender systems.},
  url = {https://dl.acm.org/doi/10.1145/2556288.2557069?cid=87958660357},
  booktitle = {Proceedings of the 32nd International Conference on Human Factors in Computing Systems (CHI ’14)}
}


@article{ubo:42845,
  author = {Hussein, Tim and Linder, Timm and Gaulke, Werner and Ziegler, Jürgen},
  title = {Hybreed: A Software Framework for Developing Context-Aware Hybrid Recommender Systems},
  journal = {User modeling and user adapted interaction},
  abstract = {This article introduces Hybreed, a software framework for building complex context-aware applications, together with a set of components that are specifically targeted at developing hybrid, context-aware recommender systems. Hybreed is based on a concept for processing context that we call Dynamic Contextualization. The underlying notion of context is very generic, enabling application developers to exploit sensor-based physical factors as well as factors derived from user models or user interaction. This approach is well aligned with context definitions that emphasize the dynamic and activity-oriented nature of context.
 As an extension of the generic framework, we describe Hybreed RecViews, a set of components facilitating the development of context-aware and hybrid recommender systems. With Hybreed and RecViews, developers can rapidly develop context-aware applications that generate recommendations for both individual users and groups. The framework provides a range of recommendation algorithms and strategies for producing group recommendations as well as templates for combining different methods into hybrid recommenders. Hybreed also provides means for integrating existing user or product data from external sources such as social networks. It combines aspects known from context processing frameworks with features of state-of-the-art recommender system frameworks, aspects that have been addressed only separately in previous research. To our knowledge, Hybreed is the first framework to cover all these aspects in an integrated manner.
 To evaluate the framework and its conceptual foundation, we verified its capabilities in three different use cases. The evaluation also comprises a comparative assessment of Hybreed’s functional features, a comparison to existing frameworks, and a user study assessing its usability for developers. The results of this study indicate that Hybreed is intuitive to use and extend by developers.},
  year = {2014},
  volume = {24},
  number = {1},
  pages = {121–174},
  issn = {1573-1391},
  doi = {10.1007/s11257-012-9134-z}
}


@book{ubo:42846,
  author = {Hussein, Tim},
  title = {A conceptual model and a software framework for developing context aware hybrid recommender systems},
  year = {2013},
  publisher = {Hut},
  address = {München},
  abstract = {This thesis introduces Hybreed, a software framework for building context-aware applications, together with a set of components that are specifically targeted at developing hybrid, context-aware recommender systems. Hybreed is based on a conceptual model called Dynamic Contextualization, which is also introduced in this thesis. The underlying notion of context is very generic, enabling application developers to exploit sensor-based physical factors as well as factors derived from user models or user-system interaction. This approach is well aligned with context definitions that emphasize the dynamic and activity-oriented nature of context. As an extension of the generic framework, Hybreed RecViews is introduced, a set of components facilitating the development of context-aware and hybrid recommender systems. With Hybreed and RecViews, developers can rapidly develop context-aware applications that generate recommendations for both individual users and groups.},
  isbn = {978-3-8439-1188-7},
  school = {University of Duisburg-Essen}
}


@inproceedings{ubo:42827,
  author = {Kaindl, Hermann and Wach, Elmar and Okoli, Ada and Popp, Roman and Hoch, Ralph and Gaulke, Werner and Hussein, Tim},
  chapter = {},
  title = {Semi-automatic generation of recommendation processes and their GUIs},
  year = {2013},
  publisher = {ACM},
  abstract = {Creating and optimizing content- and dialogue-based recommendation processes and their GUIs (graphical user interfaces) manually is expensive and slow. Changes in the environment may also be found too late or even be overlooked by humans. We show how to generate such processes and their GUIs semi-automatically by using knowledge derived from unstructured data such as customer feedback on products on the Web. Our approach covers the whole lifecycle from knowledge discovery through text mining techniques to the use of this knowledge for semi-automatic generation of recommendation processes and their user interfaces as well as their comparison in real-world use within the e-commerce domain through A/B-variant tests. These tests indicate that our approach can lead to better results as well as less manual effort.},
  isbn = {978-1-4503-1965-2},
  url = {http://dx.doi.org/10.1145/2449396.2449410},
  booktitle = {Proceedings of the 18th International Conference on Intelligent User Interfaces (IUI ’13)}
}


@book{ubo:42843,
  editor = {Hussein, Tim and Paulheim, Heiko and Lukosch, Stephan and Ziegler, Jürgen and Calvary, Gaelle},
  title = {Semantic Models for Adaptive Interactive Systems},
  series = {Human–Computer Interaction Series},
  year = {2013},
  publisher = {Springer},
  address = {London [u.a.]},
  abstract = {Providing insights into methodologies for designing adaptive systems based on semantic data, and introducing semantic models that can be used for building interactive systems, this book showcases many of the applications made possible by the use of semantic models.
 Ontologies may enhance the functional coverage of an interactive system as well as its visualization and interaction capabilities in various ways. Semantic models can also contribute to bridging gaps; for example, between user models, context-aware interfaces, and model-driven UI generation. There is considerable potential for using semantic models as a basis for adaptive interactive systems. A variety of reasoning and machine learning techniques exist that can be employed to achieve adaptive system behavior. The advent and rapid growth of Linked Open Data as a large-scale collection of semantic data has also paved the way for a new breed of intelligent, knowledge-intensive applications.
 Semantic Models for Adaptive Interactive Systems includes ten complementary chapters written by experts from both industry and academia. Rounded off by a number of case studies in real world application domains, this book will serve as a valuable reference for researchers and practitioners exploring the use of semantic models within HCI.},
  isbn = {978-1-4471-5301-6},
  url = {http://dx.doi.org/10.1007/978-1-4471-5301-6}
}


@inproceedings{ubo:42828,
  author = {Loepp, Benedikt and Hussein, Tim and Ziegler, Jürgen},
  chapter = {},
  title = {Interaktive Empfehlungsgenerierung mit Hilfe latenter Produktfaktoren},
  year = {2013},
  publisher = {Oldenbourg},
  address = {München},
  abstract = {In diesem Beitrag beschreiben wir ein Verfahren zur Generierung interaktiver Empfehlungsdialoge auf Basis latenter Produktfaktoren. Der Ansatz verbindet auf neuartige Weise Methoden zur automatischen Generierung von Empfehlungen mit interaktiven, explorativen Methoden der Produktsuche. Das vorgestellte Verfahren nutzt verborgene Muster in Produktbewertungen (latente Faktoren) und erzeugt auf dieser Basis visuelle Dialoge, die den Nutzer schrittweise und intuitiv durch einen Explorationsprozess führen. In einer Nutzerstudie konnten wir zeigen, dass ein derartiger interaktiver Empfehlungsprozess hinsichtlich des Aufwandes und der Zufriedenheit mit den erzielten Resultaten eine deutliche Verbesserung gegenüber rein manuellen oder rein automatischen Verfahren bieten kann.},
  pages = {17–26},
  doi = {10.1524/9783486781229.17},
  url = {http://dx.doi.org/10.1524/9783486781229.17},
  booktitle = {Mensch & Computer 2013 – Tagungsband}
}


@inproceedings{ubo:42844,
  author = {Hussein, Tim and Linder, Timm and Ziegler, Jürgen},
  editor = {Hussein, Tim and Paulheim, Heiko and Lukosch, Stephan and Ziegler, Jürgen and Calvary, Gaelle},
  chapter = {},
  title = {A Context-Aware Shopping Portal Based on Semantic Models},
  series = {Human-Computer Interaction Series},
  year = {2013},
  publisher = {Springer},
  address = {London},
  abstract = {This chapter illustrates how semantic models can be used as a backend data source for both exploration and adaptation purposes. For a fictitious shopping portal, we implemented a faceted navigation approach that provides means for exploring the portal’s content manually. In addition to that, we implemented an adaptation mechanism based on spreading activation that also exploits the semantic structure of the underlying data.},
  isbn = {978-1-4471-5301-6},
  url = {http://dx.doi.org/10.1007/978-1-4471-5301-6_8},
  booktitle = {Semantic Models for Adaptive Interactive Systems}
}


@inproceedings{ubo:37324,
  author = {Münter, Daniel and Kötteritzsch, Anna and Linder, Timm and Hofmann, Jens and Hussein, Tim and Ziegler, Jürgen},
  editor = {Reiterer, Harald and Deussen, Oliver},
  chapter = {},
  title = {Einflussfaktoren für eine situationsgerechte Navigationsunterstützung im Fahrzeug},
  series = {Mensch & Computer},
  year = {2012},
  edition = {1. Aufl.},
  publisher = {Oldenbourg Verlag},
  address = {München},
  abstract = {Aktuelle Navigationslösungen im Automobil ermöglichen nur eine sehr eingeschränkte Anpassung an Fahrer und Fahrsituation. Anzahl und Aufbereitung von Fahranweisungen sind teils unzureichend verständlich und können den Fahrer kognitiv stark beanspruchen. Dieser Beitrag stellt eine Studie vor, in der ein Bedarf nach fahrer- und situationsabhängiger Optimierung von Navigationslösungen sowie die dafür relevanten Einflussfaktoren identifiziert wurden. Dazu wurden Merkmale zur Charakterisierung von Fahrsituationen betrachtet und deren jeweiliger Einfluss auf das Unterstützungsbedürfnis des Fahrers untersucht. Es konnte gezeigt werden, dass das Nutzerbedürfnis nach mehr oder weniger Unterstützung vom komplexen Zusammenspiel unterschiedlicher Eigenschaften des Fahrers, des Fahrzeugs und der Fahrumgebung abhängt. Anhand der Untersuchungsergebnisse werden Vorschläge für eine situationsangemessene Navigationsunterstützung diskutiert.},
  isbn = {978-3-486-71879-9},
  url = {http://dl.mensch-und-computer.de/handle/123456789/2874},
  booktitle = {Mensch & Computer 2012: 12. fachübergreifende Konferenz für interaktive und kooperative Medien. Interaktiv informiert – allgegenwärtig und allumfassend!?}
}


@inproceedings{ubo:36047,
  author = {Stegemann, Timo and Ziegler, Jürgen and Hussein, Tim and Gaulke, Werner},
  chapter = {},
  title = {Interactive Construction of Semantic Widgets  for Visualizing Semantic Web Data},
  year = {2012},
  publisher = {ACM New York, NY, USA},
  abstract = {The rapidly growing amount of semantically represented data on the Web creates the need for more intuitive methods and tools to interact with these data and to use them in standard Web applications. We present a method how users can interactively define personalized views of large semantic data spaces. Specifically, we propose X3S as a technique and format for specifying ‘semantic widgets’ that integrate querying and filtering of semantic data with defining their layout and presentation style. In addition, an editor has been developed that allows to create X3S templates in a direct manipulation style. The editor and the underlying format are evaluated against existing approaches by comparing their functional capabilities as well as in an initial user study.},
  isbn = {978-1-4503-1168-7},
  url = {http://doi.acm.org/10.1145/2305484.2305510},
  booktitle = {Proceedings of the 4th ACM SIGCHI Symposium on Engineering Interactive Computing Systems}
}


@inproceedings{Munter:2012,
  author = {Münter, Daniel and Hussein, Tim and Gaulke, Werner and Ziegler, Jürgen},
  title = {Service-Based Recommendations for Context-Aware Navigation Support},
  booktitle = {Zukünftige Entwicklungen in der Mobilität: Betriebswirtschaftliche und Technische Aspekte - Tagungsband des 3. Wissenschaftsforum Mobilität},
  edition = {1. Auflage},
  editor = {Proff, Heike and Schönharting, Jörg and Schramm, Dieter and Ziegler, Jürgen},
  isbn = {978-3-8349-3232-7},
  publisher = {Gabler Verlag},
  address = {Wiesbaden},
  url = {http://www.gabler.de/Buch/978-3-8349-3232-7/},
  year = {2012},
  abstract = {In this paper, we introduce a novel concept for service integration into navigation systems. Our approach incorporates contextual information (such as the current location or route) as well as information retrieved from web-based services such as hotel ratings or gas prices. We present a generic framework that can be used to design navigation systems based on such information and describe a prototypical implementation.}
}


@inproceedings{ubo_mods_00120479,
  author = {Hussein, Tim and Lukosch, Stephan and Ziegler, Jürgen and Paulheim, Heiko and Calvary, Gaëlle},
  title = {2nd International Workshop on Semantic Models for Adaptive Interactive Systems (SEMAIS 2011)},
  booktitle = {IUI 2011: Proceedings of the ACM International Conference on Intelligent User Interfaces},
  year = {2011},
  publisher = {ACM Press},
  address = {New York},
  pages = {467–468},
  keywords = {User interface design},
  isbn = {978-1-4503-0419-1},
  doi = {10.1145/1943403.1943504}
}


@inproceedings{ubo_mods_00120309,
  author = {Díaz, Paloma and Hussein, Tim and Lohmann, Steffen and Ziegler, Jürgen},
  title = {Data-Centric Interactions on the Web},
  booktitle = {Human-Computer Interaction – INTERACT 2011: Proceedings, Part IV},
  year = {2011},
  publisher = {Springer Berlin Heidelberg},
  address = {Berlin},
  pages = {726–727},
  keywords = {Web interaction},
  isbn = {978-3-642-23767-6},
  issn = {1611-3349},
  doi = {10.1007/978-3-642-23768-3}
}


@inproceedings{ubo_mods_00119994,
  author = {Muenter, Daniel and Hussein, Tim},
  editor = {Hussein, Tim and Lukosch, Stephan and Paulheim, Heiko and Ziegler, Jürgen},
  title = {Adaptive presentation of itineraries in navigation systems by means of semantic models},
  booktitle = {Proceedings of the 2nd Workshop on Semantic Models for Adaptive Interactive Systems},
  series = {CEUR Workshop Proceedings},
  year = {2011},
  publisher = {RWTH},
  address = {Aachen},
  volume = {747},
  keywords = {Navigation support},
  issn = {1613-0073},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=24034}
}


@inproceedings{ubo:32508,
  author = {Stegemann, Timo and Hussein, Tim and Gaulke, Werner and Ziegler, Jürgen},
  chapter = {},
  title = {X3S: Eine Spezifikation zur Darstellung und interaktiven Exploration semantischer Daten},
  year = {2011},
  abstract = {Die zunehmenden Wandlung des Internets von einem dokumentenzentrierten hin zu einem datenorientierten Netz eröffnet für Nutzer wie Entwickler eine Fülle an Möglichkeiten. Allerdings stoßen traditionelle Ansätze des Web Engineerings bei der Fülle und Heterogenität der Daten häufig an ihre Grenzen. In diesem Beitrag wird mit X3S eine Spezifikation zur Filterung sowie zur Darstellung semantischer Inhalte des Daten-Webs vorgestellt, der das Anlegen und Wiederverwenden von Bausteinen zur Datenexploration und -visualisierung ermöglicht.},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=26874},
  booktitle = {IVDW ’11: Interaktion und Visualisierung im Daten-Web}
}


@inproceedings{ubo:32814,
  author = {Niesenhaus, Jörg and Münter, Daniel and Hussein, Tim and Ziegler, Jürgen},
  editor = {DiGRA},
  chapter = {},
  title = {Playful Crowdsourcing for Energy-Efficient Automotive Navigation},
  year = {2011},
  abstract = {In this paper, we describe  the work-in-progress state of a playful simulation using crowdsourcing to gather data of efficient routes for automotive navigation in the context of electro mobility. Users will contribute well-known routes of their local area by playing the simulation. The routes will be evaluated with regard to height structure, traffic volume, and traffic signal frequency in the context of the daytime, season, and further time-dependent events. Based on this data, the simulation will be able to calculate the most energy-efficient route.},
  url = {http://www.digra.org/dl/db/11312.40252.pdf},
  booktitle = {Think Design Play. Proceedings of the 5th International Conference of the Digital Games Research Association (DiGRA)}
}


@inproceedings{ubo:31651,
  author = {Münter, Daniel and Hussein, Tim and Linder, Timm and Hofmann, Jens and Ziegler, Jürgen},
  editor = {Eibl, Maximilian},
  chapter = {},
  title = {Nutzeradaptive Routenführung in Navigationssystemen},
  year = {2011},
  publisher = {Oldenbourg},
  address = {München},
  abstract = {In diesem Beitrag stellen wir die Ergebnisse zweier Studien zur adaptiven Generierung von Fahranweisungen unter Berücksichtigung der Ortskenntnisse vor. Es konnte gezeigt werden, dass angepasste Anweisungen durch die Nutzer präferiert werden. Ein entwickelter Generator für personalisierte Anweisungen wurde zudem signifikant besser bewertet als ein etablierter Onlinedienst (Google Maps).},
  isbn = {978-3-486-71235-3},
  url = {http://www.oldenbourg-verlag.de/wissenschaftsverlag/mensch-computer-2011/9783486712353},
  booktitle = {Mensch & Computer 2011}
}


@inproceedings{ubo:32506,
  author = {Stegemann, Timo and Hussein, Tim and Gaulke, Werner and Ziegler, Jürgen},
  editor = {Diaz, Paloma and Hussein, Tim and Lohmann, Steffen and Ziegler, Jürgen},
  chapter = {},
  title = {Interacting with semantic data by using X3S},
  year = {2011},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=26869},
  booktitle = {Proceedings of the 1st Workshop on Data-Centric Interactions on the Web}
}


@inproceedings{ubo:32507,
  author = {Ziegler, Jürgen and Hussein, Tim and Münter, Daniel and Hofmann, Jens and Linder, Timm},
  chapter = {},
  title = {Generating Route Instructions with Varying Levels of Detail},
  year = {2011},
  abstract = {In this paper, we present a technique for adaptive generation of personalized route instructions based on the driver’s knowledge of particular route sections. We evaluated the mechanism with two empirical studies, both attesting significant preference for the adaptively generated presentations over an established online service (Google Maps).},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=26873},
  booktitle = {3rd International Conference on Automotive User Interfaces and Interactive Vehicular Applications (AutomotiveUI 2011)}
}


@article{ubo:28968,
  author = {Hussein, Tim and Ziegler, Jürgen},
  title = {Situationsgerechtes Recommending – Kontextadaptive, hybride Empfehlungsgenerierung},
  journal = {Informatik Spektrum},
  year = {2011},
  volume = {34},
  number = {2},
  pages = {143–152},
  abstract = {Dieser Artikel untersucht die unterschiedlichen Paradigmen, die kontextadaptiven Empfehlungssystemen zugrunde liegen und schlägt einen neuen perspektivenorientierten Ansatz vor. Kontext kann demnach nicht nur als vorab festgelegte Menge vorliegender Gegebenheiten (repräsentationaler Ansatz) oder in Wechselwirkung zur aktuellen Tätigkeit (interaktionaler Ansatz) gesehen werden, sondern als eine sich dynamisch ändernde Perspektive, unter der eine vorliegende Situation zu beurteilen ist. Mit Context Views führen wir eine Methode ein, mit der auf diese Weise kontextsensitive Empfehlungen generiert werden können. Weiterhin wird ein Framework vorgestellt, das in flexibler Weise kontextabhängig unterschiedliche Strategien zur Empfehlungsgenerierung in einem hybriden Ansatz integrieren kann.},
  url = {http://www.springerlink.com/content/g63v543125526334/}
}


@article{ubo:29666,
  author = {Ziegler, Jürgen and Münter, Daniel and Hussein, Tim},
  title = {Elektromobilität braucht intelligente Navigation},
  journal = {UNIKATE - Herausforderung Elektromobilität},
  year = {2011},
  volume = {39},
  pages = {S. 62 –71},
  abstract = {In-car navigation systems are increasingly evolving into powerful mobility assistants which, in addition to conventional functions such as routing and providing directions,  can offer the driver manifold information resources and services. Through this, they will also become an important supportive technology for making mobility with electric vehicles more effective and acceptable. More intelligent methods of trip planning and routing will be required for e-cars due to the current constraints concerning charging time and availability of charging stations. Moreover, by flexibly integrating different information resources and services available on the Internet, trips can be better aligned with the driver’s tasks and needs, opening up opportunities for new business models for service providers and merchants. Primary methods for integrating heterogeneous services in a smart mobility assistant are provided by Semantic Web technologies and standards. This article discusses the different requirements for a mobility assistant, describes the underlying technologies, and presents a prototypical system that was developed in the colognE-mobil project.},
  issn = {1869-3881},
  url = {http://www.uni-due.de/unikate/archiv.php?eu=039}
}


@article{ubo:29668,
  author = {Münter, Daniel and Hussein, Tim},
  title = {Adaptive Routenbeschreibungen für Navigationssysteme},
  journal = {i-com – Zeitschrift für interaktive und kooperative Medien},
  year = {2011},
  volume = {10},
  number = {1},
  pages = {11 –17},
  abstract = {In diesem Beitrag stellen wir ein Verfahren zur adaptiven Präsentation für Navigationsgeräte vor, welche auf semantischen Modellen basiert. Dabei reichern wir herkömmliche Routenbeschreibungen mit semantischen Informationen an und präsentieren dem Fahrer lediglich diejenigen Routenanweisungen, an denen er wirklich interessiert ist und blenden überflüssige Anweisungen aus.},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=25471}
}


@inproceedings{ubo:28374,
  author = {Münter, Daniel and Hussein, Tim},
  chapter = {},
  title = {Adaptive presentation of itineraries in navigation systems by means of semantic models},
  year = {2011},
  abstract = {In this paper, we introduce a technique for adaptive presentation of itineraries in navigation systems based on semantic models. We enrich waypoints with semantic information and display only those waypoints to the driver that he is really interested in, hiding information that will most probably be distracting.},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=24034},
  booktitle = {SEMAIS ’11: Proceedings of the 2nd workshop on Semantic Models for Adaptive Interactive Systems (in conjunction with IUI 2011)}
}


@inproceedings{ubo_mods_00123334,
  author = {Hussein, Tim and Lukosch, G. Stephan and Ziegler, Jürgen and Dix, Alan},
  title = {1st international workshop on semantic models for adaptive interactive systems (SEMAIS 2010)},
  booktitle = {Proceedings of the 15th international conference on Intelligent user interfaces},
  year = {2010},
  publisher = {ACM Press},
  address = {New York},
  pages = {437–438},
  keywords = {Usability},
  isbn = {978-1-60558-515-4},
  doi = {10.1145/1719970.1720061}
}


@article{ubo_mods_00120700,
  author = {Haake, M. Joerg and Hussein, Tim and Joop, Björn and Lukosch, Stephan and Veiel, Dirk and Ziegler, Jürgen},
  title = {Modeling and exploiting context for adaptive collaboration},
  journal = {International Journal of Cooperative Information Systems},
  year = {2010},
  volume = {19},
  number = {1-2},
  pages = {71–120},
  keywords = {CSCW},
  issn = {1793-6365},
  doi = {10.1142/S0218843010002115}
}


@inproceedings{ubo:27688,
  author = {Hussein, Tim and Gaulke, Werner and Hartmann, Anabell and Ziegler, Jürgen},
  editor = {Ziegler, Jürgen and Schmidt, Albrecht},
  chapter = {},
  title = {Wahrnehmung und Akzeptanz von systemgenerierten Produktempfehlungen},
  year = {2010},
  edition = {1},
  publisher = {Oldenbourg},
  address = {München},
  abstract = {Seit mehr als einem Jahrzehnt werden Empfehlungssysteme (Recommender Systems) in Webshops, Nachrichtenportalen und anderen Bereichen eingesetzt, um die Nutzer zielgerichtet zu potenziell interessanten Produkten und Inhalten zu führen. Während seit vielen Jahren intensiv an der Verbesserung der Algorithmen zur Empfehlungsgenerierung geforscht wird, ist jedoch wenig darüber bekannt, welche Faktoren – neben der Qualität der Empfehlungen an sich – für die Wahrnehmung und Akzeptanz systemgenerierter Empfehlungen verantwortlich sind. Dieser Beitrag präsentiert die Ergebnisse einer Studie, in der der Einfluss von Faktoren wie Kenntnis der durchsuchten Produktdomäne, Preisniveau der Produkte und Zeitdruck untersucht werden. Die Ergebnisse der Studie zeigen, dass Kenntnis der Produktdomäne sowie der Preisbereich der Produkte Einfluss auf die oben angesprochenen Größen hatten. Zeitdruck hingegen erwies sich nicht als relevanter Faktor.},
  isbn = {978-3-486-70408-2},
  booktitle = {Mensch & Computer 2010}
}


@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.}
}


@article{ubo:27686,
  author = {Haake, Jörg and Hussein, Tim and Joop, Björn and Lukosch, Stephan and Veiel, Dirk and Ziegler, Jürgen},
  title = {Modeling and exploiting context for adaptive collaboration},
  journal = {International Journal of Cooperative Information Systems (IJCIS)},
  year = {2010},
  volume = {19},
  number = {1-2},
  pages = {71–120},
  abstract = {Collaborative work is characterized by frequently changing situations and corresponding demands for tool support and interaction behavior provided by the collaboration environment. Current approaches to address these changing demands include manual tailoring by end-users and automatic adaptation of single user tools or for individual users. Few systems use context as a basis for adapting collaborative work environments, mostly focusing on document recommendation and awareness provision. In this paper, we present, firstly, a generic four layer framework for modeling and exploiting context. Secondly, a generic adaptation process translating user activity into state, deriving context for a given focus, and executing adaptation rules on this context. Thirdly, a collaboration domain model for describing collaboration environments and collaborative situations. Fourthly, examples of exploiting our approach to support context-based adaptation in four typical collaboration situations: co-location, co-access, co-recommendation, and co-dependency.},
  issn = {1793-6365},
  url = {http://www.worldscinet.com/ijcis/19/1901n02/S0218843010002115.html}
}


@inproceedings{ubo:26372,
  author = {Münter, Daniel and Hussein, Tim and Gaulke, Werner},
  editor = {Schroeder, Ulrik},
  chapter = {},
  title = {Kontextabhängige Empfehlung von Services zur intelligenten Navigationsunterstützung},
  year = {2010},
  edition = {1. Auflage},
  publisher = {Logos Verlag},
  address = {Berlin},
  abstract = {In diesem Beitrag stellen wir ein neuartiges Konzept zur Integration von Diensten zur intelligenten Navigationsunterstützung vor. Unser Ansatz berücksichtigt Kontextinformationen (wie beispielsweise der aktuelle Ort oder die gefahrene Route) ebenso wie Daten, welche über web-basierte Dienstleistungsangebote (z.B. Hotelbewertungen oder Benzinpreise) ermittelt werden können. Wir präsentieren ein generisches Framework, welches zur Entwicklung von Navigationssystemen verwendet werden kann, die solche Dienste einbinden.},
  isbn = {978-3-8325-2578-1},
  url = {http://www.logos-verlag.de/cgi-bin/engbuchmid?isbn=2578&lng=deu&id=0},
  booktitle = {Interaktive Kulturen - Proceedings der Workshops der Mensch & Computer 2010 - 10. fachübergreifende Konferenz für interaktive und kooperative Medien, DeLFI 2010 - Die 8. E-Learning Fachtagung Informatik der Gesellschaft für Informatik e.V. und der Entertainment Interfaces 2010}
}


@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.}
}


@article{ubo:27690,
  author = {Hussein, Tim and Gaulke, Werner},
  title = {Hybride, kontext-sensitive Generierung von Produktempfehlungen},
  journal = {i-com – Zeitschrift für interaktive und kooperative Medien},
  year = {2010},
  volume = {9},
  number = {2},
  pages = {16–23},
  abstract = {In diesem Beitrag stellen wir mit Hybreed RecFlows ein modulares Framework zur Generierung von (Produkt) Empfehlungen vor. RecFlows (Kurzform für Recommendation Workflows) stellt eine Reihe etablierter Algorithmen aus dem Bereich Recommender Systems zur Verfügung sowie einen Workflow-Mechanismus, um aus diesen Algorithmen flexibel hybride Recommender zu erstellen. Darüber hinaus werden unterschiedliche Sensoren bereitgestellt, um Informationen aus verschiedenen Quellen in den Empfehlungsprozess mit einfließen zu lassen. Insbesondere werden Sensoren zur Kontext-Erfassung (z. B. der aktuelle Ort des Nutzers anhand seiner IP-Adresse) implementiert. So ist es möglich, mit Hilfe von RecFlows hybride, kontextsensitive Empfehlungen zu generieren.
 Read More: http://www.oldenbourg-link.com/doi/abs/10.1524/icom.2010.0018},
  url = {http://www.oldenbourg-link.com/doi/abs/10.1524/icom.2010.0018}
}


@inproceedings{ubo:24883,
  author = {Hussein, Tim and Neuhaus, Sebastian},
  chapter = {},
  title = {Explanation of spreading activation based recommendations},
  year = {2010},
  address = {Hong Kong, China},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=21925},
  abstract = {In this paper, we introduce an approach for explaining rec- ommendations in environments that are based on semantic models. Using a constrained Spreading Activation (CSA) technique for recommendation generation, we store and exploit the activation paths leading to recommendations. These paths later can be used to generate both verbal explanations and relevance feedback forms.},
  booktitle = {Semantic Models for Adaptive Interactive Systems (SEMAIS), 1st Workshop in conjunction with the International Conference on Intelligent User Interfaces (IUI) 2010}
}


@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:24767,
  author = {Hussein, Tim and Münter, Daniel},
  chapter = {},
  title = {Automated Generation of a Faceted Navigation Interface Using Semantic Models},
  year = {2010},
  address = {Hong Kong, China},
  abstract = {In this paper, we introduce a concept for automated generation of faceted navigation widgets. These widgets are generated on the fly depending on the type of data to be displayed. For this purpose, we use semantic models for data representation and apply generic SPARQL queries, which makes the navigation creation completely independent from the content and structure of the underlying models.},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=21923},
  booktitle = {Semantic Models for Adaptive Interactive Systems (SEMAIS), 1st Workshop in conjunction with the International Conference on Intelligent User Interfaces (IUI) 2010}
}


@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}
}


@book{ubo:35943,
  author = {Haake, Jörg and Hussein, Tim and Joop, Björn and Lukosch, Stephan and Veiel, Dirk and Ziegler, Jürgen},
  title = {Context Modeling for Adaptive Collaboration},
  series = {Technischer Bericht},
  year = {2009},
  publisher = {Abteilung für Informatik und Angewandte Kognitionswissenschaft, Fakultät für Ingenieurwissenschaften, Universität Duisburg-Essen},
  address = {Essen},
  url = {http://duepublico.uni-duisburg-essen.de/servlets/DocumentServlet?id=20510},
  abstract = {Collaborative work is characterized by frequently changing situations and corresponding demands for tool support and interaction behavior provided by the collaboration environment. Current approaches to address these changing demands include manual tailoring by end-users and automatic adaptation of single user tools or for individual users. Few systems use context as a basis for adapting collaborative work environments, mostly focusing on document recommendation and awareness provision. In this paper we present, firstly, a generic four layer framework for modeling context in a collaboration environment, secondly, a generic adaptation process translating user activity into state, deriving context for a given focus, and executing adaptation rules on this context, thirdly, a collaboration domain model for describing collaboration environments and collaborative situations, and, fourthly, examples of exploiting our approach to support context-based adaptation in four typical collaboration situations: co-location, co-access, co-recommendation, and co-dependency.}
}


@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: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}
}


@article{ubo:18136,
  author = {Ziegler, Jürgen and Kaltz, Wolfgang J. and Lohmann, Steffen and Hussein, Tim},
  title = {Maßarbeit statt Konfektion - Kontextadaption liefert passgenaue Informationen},
  journal = {Forum Forschung},
  year = {2006},
  pages = {42–47}
}


@article{ubo:14851,
  author = {Kaltz, Wolfgang J. and Lohmann, Steffen and Hussein, Tim and Lang, Eike and Ziegler, Jürgen},
  title = {Ontologiebasiertes Engineering kontextadaptiver Webanwendungen},
  journal = {i-com: Zeitschrift für interaktive und kooperative Medien},
  year = {2005},
  volume = {4},
  number = {3},
  pages = {22–30},
  abstract = {Angesichts des zunehmenden Leistungsumfangs moderner Informations- und Kommunikationstechnologien und einer wachsenden Informationsflut in globalen Netzen werden Methoden und Mechanismen benötigt, die den Nutzern dem jeweiligen Nutzungskontext angepasste Informationen und Dienste liefern. In diesem Beitrag wird eine ontologiebasierte Methodik vorgestellt, die die Integration von Context Engineering-Mechanismen in den Entwicklungsprozess von Webanwendungen zum Ziel hat. Anschließend wird anhand einer Architektur für kontextadaptive Webanwendungen erläutert, wie sich durch diese Vorgehensweise Kontextanpassungen
 auf unterschiedlichen Ebenen bewirken lassen.},
  issn = {1618-162X}
}