# -*- coding: utf-8 -*-
"""
Spyder Editor

This is a temporary script file.
"""

def data_reader () : #read rating file
    pass
def data_processer () : # processing rating file & build user_item_matrix
    pass
def isolate_user () : #isolating user that rated same moive ?????
    pass
def sim_cos () : #computing cosign based sim
    pass
def sim_corr () : #computing correlation based sim
    pass
def sim_adj () : #computing adjusted cosine sim
    pass
def pred_WS () : # computing prediction using weighted sum
    pass
def regression () : #???
    pass
def eval_matrix_builder () : #build evaluation matrix using MAE
    pass