@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)}
}


@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}
}


@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)}
}


@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: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}
}


@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}
}