where from meaning in Chinese
从何而来
Examples
- Oh . where from
哦,哪里来的 - Experiments show that fpmine runs two times as fast as the most recently proposed algorithm fp - growth and saves half the memory ; moreover , our algorithm has a quite good time and space scalability with the number of transactions , and has an excellent performance in dense database mining as well ; spf has excellent time and space efficiency ; fpmine - spf algorithm has a far taster speed in association rules mining than the widely used apriori algorithm and has wonderful scalability . association rules mining always generates too many rules , which makes ii difficult to pick the valuable rules where from
实验表明,在相同数据集上,与fp - growth算法相比,算法fpmine的挖掘速度提高了一倍以上,而所需的存储空间减少了一半;随着数据库规模的增大,算法fpmine具有很好的可伸缩性;对于稠密数据集,本文算法也具有良好的性能; spf算法具有极好的时空效率; fpmine - spf算法挖掘关联规则的速度远快于较长期以来广泛使用的apriori算法,并有相当好的可伸缩性。