期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
基于格的频繁数据项集发现算法
1
作者 金远平 陈才扣 《计算机工程与科学》 CSCD 2000年第6期1-4,共4页
求频繁数据项集是挖掘关联规则的主要步骤 ,许多算法需要多次扫描数据集。本文提出了一个基于格理论的频繁数据项集发现算法 ,该算法最多只需对数据集扫描 3次 ,有效地降低了 I/O开销。
关键词 数据挖掘 频繁数据项集 数据 关联规则
在线阅读 下载PDF
Frequent item sets mining from high-dimensional dataset based on a novel binary particle swarm optimization 被引量:2
2
作者 张中杰 黄健 卫莹 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第7期1700-1708,共9页
A novel binary particle swarm optimization for frequent item sets mining from high-dimensional dataset(BPSO-HD) was proposed, where two improvements were joined. Firstly, the dimensionality reduction of initial partic... A novel binary particle swarm optimization for frequent item sets mining from high-dimensional dataset(BPSO-HD) was proposed, where two improvements were joined. Firstly, the dimensionality reduction of initial particles was designed to ensure the reasonable initial fitness, and then, the dynamically dimensionality cutting of dataset was built to decrease the search space. Based on four high-dimensional datasets, BPSO-HD was compared with Apriori to test its reliability, and was compared with the ordinary BPSO and quantum swarm evolutionary(QSE) to prove its advantages. The experiments show that the results given by BPSO-HD is reliable and better than the results generated by BPSO and QSE. 展开更多
关键词 data mining frequent item sets particle swarm optimization
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部