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The following topics are dealt with: semantic media adaptation; personalization; multimedia content browsing; multimedia retrieval; and recommender system.
Adaptive navigational support over the content available in different languages was tested in a controlled experiment. Adaptive web system XAPOS was developed and used for personalized navigation of two groups of users for two adaptive methods comparison. The used personalized adaptation approach is concept-based and adaptive algorithm uses concept space and keywords in English. However, the content...
Adaptation and Personalization systems can benefit with the incorporation of ontological knowledge, especially when it comes to modeling users. In this paper we present a cognitive approach to Web Personalization based on an ontology that contains users' cognitive factors. Accordingly, a human factors' ontology has been designed and developed using RDFa, and could be used in any Web-based application...
Several approaches to educational web-based content enrichment have been devised. Annotations in form of comments and other types of remarks obviously supply these approaches. Annotations allow enriching the educational materials mainly by retaining key information or comments; they can support visual search and also collaboration. In this paper we present a method for an acquisition of new educational...
Current work focuses on user modeling in terms of affective analysis that could in turn be used in intelligent personalized interfaces and systems, dynamic profiling and context-aware multimedia applications. The analysis performed within this work comprises of statistical processing and classification of automatically extracted gestural and head pose expressivity features. Computational formulation...
WordsEye is a system for converting from English text into three-dimensional graphical scenes that represent that text. It works by performing syntactic and semantic analyses on the input text, producing a description of the arrangement of objects in a scene. At the core of WordsEye is the Scenario-Based Lexical Knowledge Resource (SBLR), a unified knowledge base and representational system for expressing...
This paper deals with the automatic extraction of synchronization data from IEEE 1599-2008, an XML-based standard aiming at a comprehensive description of music. Within such format, audio tracks and video contents related to the same music piece can be referred to the occurrence of symbolic music events. In this way, digital objects are mutually synchronized, too. The goal is to show how timing information...
This paper presents a semantic model which delivers personalized audio information. The personalization process is automated and decentralized. The metadata which support personalization are separated in two categories: the metadata describing user preferences stored at each user and the resource adaptation metadata stored at the server. The multimedia models MPEG-21 and MPEG-7 are used to describe...
We propose a method for user-driven recognition of events in audio streams, aiming to assist journalists towards easily annotate unedited audiovisual content. Nonlocal information provided by the user, as for example that the sound of applause exists within the video, is used for adapting the audio event classifiers so as to detect the exact position of these events in the video. Towards this end,...
In automatic user profiling a number of features related to the user of a system are extracted in an attempt to deduct key information that can be used for adapting the interface and content of computer applications. In this context the identity, emotion, age and head orientation can provide important cues that enable efficient customization of the content of an application. In order to develop automated...
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