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Esther (EST) TheSithPadawan

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def train(lam, num_features, rate = 0.1):
iter = 0
P = defaultdict(np.array)
Q = defaultdict(np.array)
# initialize P and Q
for k, v in user_item_rating_train.items():
P[k[0]] = np.random.uniform(size = num_features)
Q[k[1]] = np.random.uniform(size = num_features)
initial_mse = validate(user_item_rating_train, P, Q)
print ("initial mse", initial_mse)
import java.util.*;
class Pair {
int x;
int y;
public Pair(int x, int y){
this.x = x;
this.y = y;
}
}
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
</head>
<body>
<div ng-app="app" ng-controller="MainCtrl" class="list-group">
<div class="list-group-item" ng-repeat="item in messages">
'''
$ python app.py
put this in your browser: http:127.0.0.1:5000 to view the json
'''
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask import render_template
import json
app = Flask(__name__)