|
| << previous | next >> |
Journal description
All volumes of the corresponding journal
All issues of the corresponding volume
All articles of the corresponding issues
Details for article 3 of 5 found articles
| Title: |
Mining frequent items in a stream using flexible windows |
| Author: |
Calders, Toon Dexters, Nele Goethals, Bart |
| Appeared in: |
Intelligent data analysis |
| Paging: | Volume 12 (2008) nr. 3 pages 293-304 |
| Year: |
2008-06-10 |
| Contents: |
We study the problem of finding frequent items in a continuous stream of itemsets. A new frequency measure is introduced, based on a flexible window length. For a given item, its current frequency in the stream is defined as the maximal frequency over all windows from any point in the past until the current state. We study the properties of the new measure, and propose an incremental algorithm that allows to produce the current frequency of an item immediately at any time. It is shown experimentally that the memory requirements of the algorithm are extremely small for many different realistic data distributions. |
| Publisher: |
IOS Press |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 3 of 5 found articles
| << previous | next >> |