Titlebook: Database and Expert Systems Applications; 14th International C Vladimír Ma?ík,Werner Retschitzegger,Olga ?těpánko Conference proceedings 20

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Athanasius Kircher’s Guardian Angelich contains structure and type information of XML documents. However, most of XML database systems just validate the whole XML document, but can not validate parts of it. If updates are very frequent, then validating the whole XML document will cause serious performance degradation. Furthermore, ro

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Athanasius Kircher’s Guardian Angelta. Our techniques are based on both an incremental clustering algorithm, which groups together the incoming XML documents according to their structural similarities, and a schema inference method, which maintains dynamically the schema of each detected document cluster. Our proposal takes into cons

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https://doi.org/10.1057/9780230378827mensional space by means of the MKL transform, a multi-space generalization of the KL transform. A local dimensionality reduction is performed at each node of the tree, allowing more selective features to be extracted and thus increasing the discriminating power of the index. The dynamical version o

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Conversion and Environmental Conflicttions of R-Trees optimized for CPU cache performance in main memory environments, where the node size is wider than the cache line size and more entries are packed in a node by compressing MBR keys. However, because there is a big difference between the node sizes of two types of R-Trees, disk-optim

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