Collaborative Filtering (cf-mdc)

A simple C++ implementation of user-based collaborative filtering for movie rating prediction using the MovieLens 10M dataset.

Features

• Predicts movie ratings for a user based on similar users.
• Calculates rating distance between users.
• Command-line tools for prediction and distance calculation.

Usage

1. Place ratings.dat in the project directory.
2. Compile:

   g++ -o MovieRate MovieRate.cpp common.cpp
   g++ -o RatingDistance RatingDistance.cpp common.cpp

3. Run:

   ./MovieRate [UserID] [MovieID]
   ./RatingDistance [UserID1] [UserID2]