Search results
Results from the WOW.Com Content Network
The snowflake schema is in the same family as the star schema logical model. In fact, the star schema is considered a special case of the snowflake schema. The snowflake schema provides some advantages over the star schema in certain situations, including: Some OLAP multidimensional database modeling tools are optimized for snowflake schemas. [3]
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
An entity–attribute–value model (EAV) is a data model optimized for the space-efficient storage of sparse—or ad-hoc—property or data values, intended for situations where runtime usage patterns are arbitrary, subject to user variation, or otherwise unforeseeable using a fixed design.
The simplest version of the minhash scheme uses k different hash functions, where k is a fixed integer parameter, and represents each set S by the k values of h min (S) for these k functions. To estimate J(A,B) using this version of the scheme, let y be the number of hash functions for which h min (A) = h min (B), and use y/k as the estimate.
An issue which complicates template processing, for parameters, is the wiki-formatting of parameter contents when inside of if-logic (such as #if or #ifeq) or #switch (or lc:, lcfirst:, uc:, ucfirst:). As of May 2012, the MediaWiki markup parser is still wiki-formatting the contents of parameters when inside #if-expressions (but not outside ...
The canonical Hénon map (with parameters a = 1.4 and b = 0.3) has Hausdorff dimension 1.261 ± 0.003. Different parameters yield different dimension values. 1.2619: Triflake: Three anti-snowflakes arranged in a way that a koch-snowflake forms in between the anti-snowflakes. 1.2619
See MSDN documentation [2] or IBM documentation [13] [14] for tutorial examples. The RECURSIVE keyword is not usually needed after WITH in systems other than PostgreSQL. [15] In SQL:1999 a recursive (CTE) query may appear anywhere a query is allowed. It's possible, for example, to name the result using CREATE [RECURSIVE] VIEW. [16]
This category contains how-to guides for various Wikipedia processes and practices. To list a page in this category, do not edit this category page. Instead, edit the page you want to list, adding [[Category:Wikipedia how-to]] at the bottom or add the template {{Wikipedia how-to}} at the top of the page.