Interviews found retraining cadences ranged from hourly to every few months, varying across models

Evidence

Operationalizing Machine Learning: An Interview Study (arXiv)

Categorization

• corroborated: 2 independent passages support this claim
• XREF: connects to: Deployed machine-learning models often persist unchanged for decades in production

Related

• Deployed machine-learning models often persist unchanged for decades in production (similarity 0.89)