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We describe and compare three probabilistic ways to perform Content Based Image Retrieval (CBIR) in compressed domain using images in JPEG2000 format. Our main focus are arbitrary non-uniformly textured color images, as can be found, e.g., in home user image collections. JPEG2000 offers data that can be easily transferred into features for image retrieval. Thus, when converting images to JPEG2000,...
Object-oriented databases integrated into a C++ software engineering environment promise an appealing platform for managing complex data and engineering tasks. In competitive markets like CAD for civil engineering and architecture stringent reliability and performance criteria must be met before entering into commercial products. We present a benchmark study specifically tailored to such CAD domains...
For many object-oriented database applications taxonomies with a setinclusion semantics among the type extents are essential. In practical cases, however, common object-oriented modeling techniques often do not result in taxonomies as they ignore application specific constraints. We will elaborate that especially in domains like CAD or similar engineering environments integrity constraints on type...
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