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- W161996565 abstract "Most web sites today are designed one-size-fits-all: all visitors see the exact same pages regardless of interests, previous interactions, or, frequently, even browsing client (desktop PC or wireless PDA). But one size often does not fit all. Instead of presenting the same content, the web experience should be dynamic and personalized, adapting to visitors' preferences as evinced in previous interactions. This thesis proposes a framework for personalizing the web experience. Within our PROTEUS framework, we view personalization as a two-step process of first modeling users, and then improving the site given the model. We frame this problem as a machine learning task: the goal is to predict users' web navigation given their previous behavior. We explore several means of personalization, including improving the wireless web and building personalized, dynamic portals, and concentrate on one in particular—automatically adding shortcuts to likely navigation destinations. A challenge in modeling web navigation is that training data for an entire site may be plentiful, but sparse for any individual page. This difficulty can be overcome, however, by noting that most large web sites have a rich underlying relational structure that can be exploited for generalization: pages can belong to different types (e.g., pages about laptop computers versus pages about printers), with each type described by a different set of attributes (e.g., size of display versus printing speed). We leverage this structure by developing relational Markov models (RMMs), a novel extension to Markov models. States in an RMM belong to relations and are described by variables over hierarchically structured domains. Based on these hierarchies, the RMM defines sets of related states, learns transition probabilities between these sets, and uses shrinkage to estimate transitions between individual pages. This thesis presents RMMs in detail and provides results showing that they outperform traditional Markov models for predicting web navigation by a substantial margin." @default.
- W161996565 created "2016-06-24" @default.
- W161996565 creator A5018711331 @default.
- W161996565 creator A5082364387 @default.
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- W161996565 date "2002-01-01" @default.
- W161996565 modified "2023-09-26" @default.
- W161996565 title "A machine learning approach to web personalization" @default.
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