chloechsu / cooking

Cuisine classification based on recipe ingredients. Using bag of words + logistic regression + random forest.

Cuisine Classification based on Recipe Ingredients

From the Kaggle competition What's Cooking in 2015.

Table of Contents

• Preprocessing
• Idea 1: Bag of Words + Logistic Regression
• Feature Selection
  • Variance Threshold (unhelpful)
  • Mutual Information (unhelpful)
  • Chi2 (unhelpful)
  • Lasso Logistic Regression (helpful)
• Analyze the Weakness of Bag of Words + Logistic Regression
• Idea 2: Random Forest with Bag of Words and Logistic Regression Results as Features
• Idea 3: Random Forest for Confused Cuisine Pairs
  • French vs Italian
  • Modify Logistic Regression Predictions with French vs Italian Classifier
  • Random Forest for each Confused Cuisine Pair

Test Scores (Accuracy)

• Bag of Words + Random Forest: 0.679
• Idea 1 Bag of Words + Logistic Regression: 0.777
• Idea 2: 0.789
• Idea 3: 0.782