Web Usage Mining is that area of Web Mining which deals with the extraction of interesting knowledge from logging information produced by web servers. In this paper, we present a s...
We introduce a new method for optimization of SQL queries with nested subqueries. The method is based on the idea of Boolean aggregates, aggregates that compute the conjunction or ...
Abstract In data clustering, many approaches have been proposed. For example, K-means method and hierarchical method. A problem is in effect by initial value and criterion to comb...