Database Systems: Design, Implementation, and Management by Peter Rob, Carlos Coronel, Steven Morris

By Peter Rob, Carlos Coronel, Steven Morris

Sensible and simple to appreciate, DATABASE platforms: layout, IMPLEMENTATION, AND administration, 10th variation, offers readers an effective beginning in database layout and implementation. packed with visible aids comparable to diagrams, illustrations, and tables, this market-leading e-book offers in-depth assurance of database layout, demonstrating that the major to winning database implementation is in right layout of databases to slot inside a bigger strategic view of the information surroundings. popular for its transparent, hassle-free writing type, the 10th variation has been completely up-to-date to incorporate scorching issues reminiscent of eco-friendly computing/sustainability for contemporary facts facilities, the function of redundant relationships, and examples of web-database connectivity and code protection. additionally, new evaluate questions, challenge units, and circumstances were extra in the course of the publication in order that readers have a number of possibilities to check their knowing and improve genuine and beneficial layout abilities.

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A circle is obtained when L2 is used, while squares are generated for L1 and L∞ metrics. For L1, the vertices of the square are on the axes, and for L∞, the square’s sides are parallel to the axes. D ( x i , x j ) = max xil − x jl . 21) Note that the invariance to translations and rotations is no longer valid for other cases of the Minkowski metric (Jain and Dubes, 1988). Now let us consider a set of points satisfying Dp(xi, x0) = 1, where x0 represents the origin. Here, we use the subscript p to represent that the distance is measured with the Minkowski metric.

1996). For both spotted cDNA and oligonucleotide microarrays, the DNA clones are either robotically spotted or ejected from a nozzle onto the support. The former is called contact printing and the latter is known as inkjet printing. Inkjet printing technology can also be used to eject the four different types of nucleotides and build the desired sequences using one nucleotide at a time. The GeneChip uses photolithography technology from the semiconductor industry to manufacture oligonucleotide microarrays.

BIRCH can achieve a computational complexity of O(N). 2 CURE and ROCK As a midway between the single linkage (or complete linkage) method and the centroid linkage method (or k-means, introduced in Chapter 4), which use either all data points or one data point as the representatives for the generated cluster, CURE uses a set of well-scattered points to represent each cluster 42 HIERARCHICAL CLUSTERING Start Build a CF tree Decrease the tree size if necessary Perform agglomerative hierarchical clustering Refine the clusters End Fig.

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