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Auflistung nach Autor:in "Hollink, Vera"

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  • Konferenzbeitrag
    Capturing 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, Maarten
    Many 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.
  • Konferenzbeitrag
    Validating Navigation Time Prediction Models for Menu Optimization
    (14. GI-Workshop "Adapitivität und Benutzermodellierung in interaktiven Softwaresystemen", 2006) Hollink, Vera; van Someren, Maarten
    Authors of menu optimization methods often use navigation time prediction models without validating whether the model is adequate for the site and its users. We review the assumptions underlying navigation time prediction models and present a method to validate these assumptions offline. Experiments on four web sites show how accurate the various model features describe the behavior of the users. These results can be used to select the best model for a new optimization task. In addition, we find that the existing optimization methods all use suboptimal models. This indicates that our results can significantly contribute to more effective menu optimization.
  • Konferenzbeitrag
    Web Site Adaptation: Recommendation and Automatic Generation of Navigation Menus
    (12. GI-Workshop "Adapitivität und Benutzermodellierung in interaktiven Softwaresystemen", 2004) Hollink, Vera; van Someren, Maarten; ten Hagen, Stephan
    In recommender systems the interests of users are typically represented as unordered sets of pages. However, on web sites where the pages are not independent of each other, the order in which the pages are visited is important. A recommender should not only recommend the right pages, but also recommend them in the right order. A widely used form of recommending is the context dependent navigation menu. In this short paper we compare content and usage based methods to build navigation menus from scratch. In our experiments the navigation traces of users clearly showed stages, which indicates that users prefer to view pages in a specific order. Content based methods appear to be adequate for creating menus that group of pages with similar topics, but do not provide an ordering. Usage based methods are necessary to recommend pages that match a user’s current navigation stage.