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Thomas Hepner, July 2016: Project code for the Facebook V - Predicting Check Ins Kaggle competition that I used to place 87th out of 1212 competitors. The code is broken up into the following files/functions: 1. build: Loads, cleans, and transforms data for model building process. 2. tune: Sample 0.5% of data and builds predictive models. - tune_nn: Tune Nearest Neighbor model. - tune_nn_features: Finds optimal feature weights for Nearest Neighbor model. - tune_tree models: Tunes XGBOOST and Random Forest models. 3. predict: - predict: Generates test data predictions for tree models. - predict_nn: Generate test data predictions for Nearest Neighbor model. 4. combine_predictions: - Ensembles test data predictions from multiple models using Mean-Average Precision (MAP3) weighting for top 3 predictions.
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