KNN Predictive Recommendations

KNN, Cross-validation = 5 fold, Based on specific users and roasts




Recommendations Value Feature Importance
Ground Coffee Grams 18.0 0.3499
Espresso Out Grams 33.8 0.334
Espresso g / Coffee g 1.88 0.3302
Extraction Time in Seconds 33.0 0.42
Flow Time in Seconds 22.0 0.4547
Time to Flow in Seconds 11.0 0.3938
Water Temp F 199.9 0.2961

Parameters Value
Optimal Number of Neighbors 9
Optimal Weight Method distance
Optimal Metric manhattan

Performance Value
Observations 163
Mean Squared Error 0.9308
R-squared 0.3004
Adjusted R-squared 0.2688
Mean Absolute Error 0.7567