ABIS 2008 – 16th Workshop on Adaptivity and User Modeling in Interactive Systems
Würzburg, 6.-8. October 2008
Auflistung nach:
Auflistung ABIS 2008 – 16th Workshop on Adaptivity and User Modeling in Interactive Systems nach Erscheinungsdatum
1 - 10 von 12
Treffer pro Seite
Sortieroptionen
- KonferenzbeitragTowards the Adaptation of Scientific Course Material powered by Communities of Practice(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Müller, ChristineSeveral applications support the adaptation of course material. Even though most of these systems allow to specify interaction preferences or even employ user modeling techniques, every system is an island with this respect. In particular, different systems cannot share user models or predict preferences in the absence of prior interactions. We use ideas from the theory of Communities of Practice to consolidate user models and to extend current approaches towards a CoP-sensitive adaptation.
- KonferenzbeitragHybrid Personalization For Recommendations(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Herder, Eelco; Kärger, PhilippIn this paper we present the concept of hybrid personalization, the combination of multiple atomic personalization mechanisms. The idea of hybrid personalization is related to hybrid recommender systems, but works on a conceptual level—it is decoupled from the actual adaptation in the user interface. This has as an advantage that one can optimize the adaptation ‘behind the screens’ or—conversely—attach a new visualization mechanism to the personalization technique. We show the practical benefits of this layered, hybrid adaptation mechanisms by means of a case study on personalized curriculum planning where it is recommended which course could or should be followed at which state in the learning process.
- KonferenzbeitragUser Modeling and User Profile Exchange for Semantic Web Applications(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Abel, Fabian; Henze, Nicola; Krause, Daniel; Plappert, DanielThe usage of applications, which are located on the Web, changes the usage of personalization massively: Users interact with most applications seldomly, often just once, but still can benefit from advantages of personalization. We present the User Modeling Service, a service to model a user across various applications. Our service is not restricted to a specific domain and can hence be integrated into arbitrary Web applications. To enable the reuse of user profile data from different applications, we adhere to wellknown Semantic Web technologies. In addition, we developed an easy-to-use Web interface, which allows users to inspect, control, and modify their data. This Web interface is also used to create access policies, which allow users to specify on a fine-grained level which application or Web Service is allowed to access which part of the user profile.
- KonferenzbeitragAdaptive Treemap Based Navigation Through Web Portals(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Nauerz, Andreas; Schindler, Sirko; Bakalov, FedorToday, Portals most often present the navigation in form of tree-like structures to users. These trees follow a representation of data with a natural hierarchy. Single nodes are either parents or children. This representation style has several drawbacks: for reaching the leaves users have to traverse rather long paths. During the traversion of the tree users get often lost and, finally, the content relations remain unclear. It is not obvious where the ”most” content is located, too. We regard treemapping (a method for displaying tree-structured data using nested polygons) as a promising technology to overcome these draw- backs. We especially focus on adaptive treemaps displaying different treemaps to different users - always trying to satisfy each single users’ individual needs. Our main concepts have been prototypically embedded within IBM’s WebSphere Portal.
- KonferenzbeitragMaking Legacy LMS adaptable using Policy and Policy templates(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Koesling, Arne Wolf; Herder, Eelco; De Coi, Juri Luca; Abel, FabianIn this paper, we discuss how users and designers of existing learning management systems (LMSs) can make use of policies to enhance adaptivity and adaptability. Many widespread LMSs currently only use limited and proprietary rule systems defining the system behaviour. Personalization of those systems is done based on those rule systems allowing only for fairly restricted adaptation rules. Policies allow for more sophisticated and flexible adaptation rules, provided by multiple stakeholders and they can be integrated into legacy systems. We present the benefits and feasibility of our ongoing approach of extending an existing LMS with policies. We will use the LMS ILIAS as a hands-on example to allow users to make use of system personalization.
- KonferenzbeitragEvaluating the Usability of Adaptive Recommendations(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Weibelzahl, Stephan; Chihaia, DianaIn the design, development and evaluation of adaptive systems, usability aspects are largely ignored so far. A correct but badly designed adaptation decision might spoil the purpose. This paper provides an example of a usability evaluation with an adaptive collaborative system. The results suggest that the representation format of recommendations did not strongly affect standard usability measures. However, comparing different design versions helped users to identify strengths and weaknesses.
- KonferenzbeitragTowards an Automatic Service Composition for Generation of User-Sensitive Mashups(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Fischer, Thomas; Bakalov, Fedor; Nauerz, AndreasIn today’s Web 2.0, mashups allow users to bring together data and services from various Web applications in order to create a new integrated tool that serves their needs. Nowadays, there is an increasing number of frameworks that provide users with a GUI environment to manually assemble different data sources and services into a mashup. However, in order to create such tools, the user must possess a certain level of technical knowledge. In this paper, we introduce a framework that automatically selects and combines Web services to create mashups. We also describe the user model that stores knowledge about user interests and expertise, which are used by the framework in order to generate mashups tailored to the needs of individual users.
- KonferenzbeitragCapturing the needs of amateur web designers by means of examples(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Hollink, Vera; de Boer, Victor; van Someren, MaartenMany sites are created by people who lack professional training in web design. We present ‘SiteGuide’, a tool that helps amateur web designers to decide which information will be included in a new web site and how the information will be organized. SiteGuide takes as input URLs of web sites from the same domain as the site the user wants to create. It automatically searches the pages of these example sites for common topics and common structural features. On the basis of these commonalities it creates a model of the user’s needs. The model can serve as a starting point for the new web site. Also, it can be used to check whether important elements are missing in a concept version of the new site and, if necessary, to adapt the initial design.
- KonferenzbeitragFine-grained user models by means of asynchronous web technologies(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Hauger, DavidAlthough asynchronous HTTP technologies have grown in importance with the emergence of Web 2.0, most web-based Adaptive Hypermedia Systems (AHS) still exclusively use server- side monitoring of user behaviour to set up the user model. This paper discusses how asynchronous technologies and client-side observation may lead to more accurate and detailed user models, and how that might benefit next- generation AHS.
- KonferenzbeitragDescribing User Actions in Adaptive Interfaces with Probabilistic Acceptors(16th Workshop on Adaptivity and User Modeling in Interactive Systems, 2008) Bezold, MatthiasAn important aspect of adaptive systems is the description of the user-system interaction, which can be used to derive new information about the user and to trigger adaptations, for instance by means of adaptation rules. In this paper, we present an approach that describes user actions by means of probabilistic deterministic finite- state automatons (PDFA), which are generated from an annotated corpus of user interactions. Based on a training set, different acceptors are created from recording data and can be employed by an adaptation framework to trigger adaptation rules. An evaluation of this approach with a prototype of an interactive TV system is presented.