I did research other papers that

I searched the keyword "load cell" but actually I couldn't find many papers.

And I tried search "strain gauge" and sometimes combide""

I introduce the below papers that I found.

Conclusion

Load cell can be used for classifying the state of the stuff on them.

Load Cells

What I learned

Confusion Matrix

Used to measure a performance of 2 class classification ML model.

We can measure accuracy, precision, recall and true negative rate / false positive rate

Reference

(Japanese)

混同行列(Confusion Matrix) とは 〜 2 値分類の機械学習のクラス分類について - Qiita

Papers that use load cells

1.