2019年7月30日

摘要： from pyspark.sql import SparkSession import math from os.path import abspath def cosSim(v1, v2): member = reduce(lambda x, y: x+y, map(lambda d: d[0]* 阅读全文

摘要： # -*- coding: utf-8 -*- import numpy as np def bayesian_smoothing(c, i): r = 1.0*c/i # print r m = np.mean(r) v = np.var(r) a = (m*(1-m)/v-1)*m b = (m 阅读全文