# Chapter 17 Bosch Production Line Performance

This competition was hosted in 2016 by Bosch at https://www.kaggle.com/c/bosch-production-line-performance and was subtitled “Reduce manufacturing failures”

The price money was \$30,000, the competition ended 11.11.2016 and 1373 teams had submitted a solution.

Challenge:

• Predict internal failures
• Data anonymized
• measurements
• tests
• Benefit
• reduce manufacturing failures

The metric was Matthews correlation coefficient (MCC) between the predicted and the observed response. The MCC is given by:

$MCC = score=\frac{\left(TP*TN\right) - \left(FP*FN\right) }{\sqrt{\left(TP*FP\right) \left(TP*FN\right) \left(TN*FP\right) \left(TN*FN\right)}}$ where:

• TP: number of true postive
• FP: number of false positive
• TN: number of true negative
• FN: number of false negative

The best possible score for perfect predictions is 1. The leader board look as follows:

1. 0.52401
2. 0.51847
3. 0.51621

The winning solution is described in the next chapter