| Issue |
MATEC Web Conf.
Volume 189, 2018
2018 2nd International Conference on Material Engineering and Advanced Manufacturing Technology (MEAMT 2018)
|
|
|---|---|---|
| Article Number | 10012 | |
| Number of page(s) | 7 | |
| Section | Bio & Human Engineering | |
| DOI | https://doi.org/10.1051/matecconf/201818910012 | |
| Published online | 10 August 2018 | |
An improvement of FP-Growth association rule mining algorithm based on adjacency table
1
School of Software and Microelectronics Northwestern Polytechnical University, Xi’an 710072, P.R China
2
Chinese helicopter design institute, Tianjin, P.R China
* Corresponding author: wenjie@mail.nwpu.edu.cn
FP-Growth algorithm is an association rule mining algorithm based on frequent pattern tree (FP-Tree), which doesn’t need to generate a large number of candidate sets. However, constructing FP-Tree requires two scansof the original transaction database and the recursive mining of FP-Tree to generate frequent itemsets. In addition, the algorithm can’t work effectively when the dataset is dense. To solve the problems of large memory usage and low time-effectiveness of data mining in this algorithm, this paper proposes an improved algorithm based on adjacency table using a hash table to store adjacency table, which considerably saves the finding time. The experimental results show that the improved algorithm has good performance especially for mining frequent itemsets in dense data sets.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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