Model · 2024

Milk Quality Prediction

Classifying milk grade from physicochemical measurements

  • RoleSolo · modeling and feature engineering
  • Timeframe2024
  • TypeModel
Multi-classLow / med / high grade
Sensor-onlyNo downstream lab tests needed
ImbalancedClass-weighted training
Figure for Milk Quality Prediction
Figure 1. Classifying milk grade from physicochemical measurements

01The problem

Dairy QC labs catch contamination at the end of the line, after bad batches are already produced. Earlier prediction from upstream sensor data would catch issues before a batch is ruined.

02Approach & architecture

Built a multi-class classifier predicting milk quality grade (low / medium / high) from chemical sensor features (pH, fat, protein, lactose, somatic cell count). Compared tree ensembles against linear baselines and tuned class weights to handle imbalanced grade distributions.

03Results

Measured What the work shows

Predictive model identifying milk grade from upstream sensor data alone, with feature importance pinpointing which chemical signals matter most. Useful pattern for any process-quality prediction problem.

04Lessons

Domain context matters: a feature that looks weak on its own (e.g. color alone) can become highly informative once combined with chemistry features the way an expert would combine them mentally.

—Stack

PythonScikit-learnPandasMatplotlibSeaborn