Hier finden Sie von Know-Center MitarbeiterInnen verfasste wissenschaftliche Publikationen


Mayer Harald, Haas Werner, Thallinger Georg, Lindstaedt Stefanie

APOSDLE-advanced process-oriented self directed learning environment

2nd European Workshop on the Integration of Knowledge, Semantics and Digital Media Technology (EWIMT 2005), IET Digital Library, 2005

The goal of the APOSDLE project is to significantly enhanceknowledge worker productivity by supporting informallearning and teaching activities in the context of knowledgeworkers everyday work processes and within their work environments.It exploits synergies between learning and knowledgemanagement by reusing content not originally intendedfor learning, and not require new content to be created. It willutilize contextualized communication for teaching, and notburden experts with additional tasks; and it will be based onknowledge sources available within an organization.The outcome of APOSDLE will be a methodology, softwareframework and reference architecture for workplace learningenhancing the learning processes for the individual and theorganisation. In order to ensure the general applicability ofthis outcome an application-driven approach is used to coverthe needs of three fundamentally different organizations: anetwork of SMEs, a public organization, and a largecorporation.

Bailer Werner, Mayer H., Neuschmied H., Haas W., Lux M., Klieber Hans-Werner

Content-based Video Retrieval and Summarization using MPEG-7

Proceedings of Electronic Imaging 2004, Internet Imaging V, San Jose, CA, USA, 2004

Retrieval in current multimedia databases is usually limited to browsing and searching based on low-level visual features and explicit textual descriptors. Semantic aspects of visual information are mainly described in full text attributes or mapped onto specialized, application specific description schemes. Result lists of queries are commonly represented by textual descriptions and single key frames. This approach is valid for text documents and images, but is often insufficient to represent video content in a meaningful way. In this paper we present a multimedia retrieval framework focusing on video objects, which fully relies on the MPEG-7 standard as information base. It provides a content-based retrieval interface which uses hierarchical content-based video summaries to allow for quick viewing and browsing through search results even on bandwidth limited Web applications. Additionally semantic meaning about video content can be annotated based on domain specific ontologies, enabling a more targeted search for content. Our experiences and results with these techniques will be discussed in this paper.

Klieber Hans-Werner, Lux M., Mayer H., Neuschmied H., Haas W.

IMB - Ein XML-basiertes Retrievalframework für digitales Audio und Video

Proceedings der Berliner XML-Tage, Berlin, Germany, 2003


Lux M., Klieber Hans-Werner, Becker J., Mayer H., Neuschmied H., Haas W.

XML and MPEG-7 for Interactive Annotation and Retrieval Using Semantic Metadata

Journal of Computer Science (, Springer-Verlag, 2002


Lux M., Klieber Hans-Werner, Becker J., Mayer H., Neuschmied H., Haas W.

XML and MPEG-7 for Interactive Annotation and Retrieval Using Semantic Meta-data

IICM, JUCS online, Graz, Austria, 2002

The evolution of the Web is not only accompanied by an increasing diversity of multimedia but by new requirements towards intelligent research capabilities, user specific assistance, intuitive user interfaces and platform independent information presentation. To reach these and further upcoming requirements new standardized Web technologies and XML based description languages are used. The Web Information Space has transformed into a Knowledge marketplace where worldwide located participants take part into the creation, annotation and consumption of knowledge. This paper points out the design of semantic retrieval frameworks and a prototype implementation for audio and video annotation, storage and retrieval using the MPEG-7 standard and semantic web reference implementations. MPEG-7 plays an important role towards the standardized enrichment of multimedia with semantics on higher abstraction levels and a related improvement of query results.
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