Titlebook: Carl Hundhausen: Sein Leben, sein Werk, sein Lebenswerk; Public Relations in Eva-Maria Lehming Book 1997 Springer Fachmedien Wiesbaden 199

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SF-Tree: An Efficient and Flexible Structure for Estimating Selectivity of Simple Path Expressions wvity retrieval speed. It makes use of . to store the SPEs in a . form to increase the selectivity retrieval speed and the accuracy of the retrieved selectivity. Our analysis shows that the probability that a selectivity estimation error occurs decreases . with respect to the error size.