Performance study of distributed Apriori-like frequent itemsets mining
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TL;DR
A new distributed approach which takes into account inherent characteristics of this algorithm and achieves good scalability compared to a typical distributed Apriori founded algorithm is presented.
Abstract
In this article, we focus on distributed Apriori-based frequent itemsets\nmining. We present a new distributed approach which takes into account inherent\ncharacteristics of this algorithm. We study the distribution aspect of this\nalgorithm and give a comparison of the proposed approach with a classical\nApriori-like distributed algorithm, using both analytical and experimental\nstudies. We find that under a wide range of conditions and datasets, the\nperformance of a distributed Apriori-like algorithm is not related to global\nstrategies of pruning since the performance of the local Apriori generation is\nusually characterized by relatively high success rates of candidate sets\nfrequency at low levels which switch to very low rates at some stage, and often\ndrops to zero. This means that the intermediate communication steps and remote\nsupport counts computation and collection in classical distributed schemes are\ncomputationally inefficient locally, and then constrains the global\nperformance. Our performance evaluation is done on a large cluster of\nworkstations using the Condor system and its workflow manager DAGMan. The\nresults show that the presented approach greatly enhances the performance and\nachieves good scalability compared to a typical distributed Apriori founded\nalgorithm.\n
