My EfficientNet Scored Worse Than Logistic Regression, Here’s What Changed…
A machine learning practitioner detailed their journey in a Kaggle music genre classification competition, aiming to improve an initial F1 score of 0.15 to over 0.90. The core challenge involved a significant discrepancy between the clean training data and the noisy, distorted test data, which included environmental sounds and tempo warping. The author emphasizes that this data mismatch was the primary obstacle, necessitating a focus on data preprocessing and feature engineering rather than solely on model architecture. AI
