随笔分类 -  大数据处理

摘要：以下代码用python编写。import osimport os.pathimport operatorimport heapq"""sort users' queries by frequency1. hashing queries and dividing into 10 files. (hash(query)%10)2. counting the number queries and sorting in each file using hashtable.3. merging files using heap queue algorithm.&qu 阅读全文