Following some suggestions I used:
\DeclareFieldFormat{titlecase}{\MakeSentenceCase{#1}}
to SentenceCase the title.
However, only the name of the conference and not the actual title seems to be affected
A. C. Bahnsen, A. Stojanovic, D. Aouada, and B. Ottersten. “Cost sensitive credit card fraud detection using bayes minimum risk”. In: Proceedings - 2013 12th inter- national conference on machine learning and applications 1 (2013), pp. 333–338.
A. C. Bahnsen, A. Stojanovic, D. Aouada, and B. Ottersten. “Cost sensitive credit card fraud detection using bayes minimum risk”. In: Proceedings - 2013 12th Inter- national conference on Machine Learning and applications 1 (2013), pp. 333–338.
