Alarm rate 2 Chemical detection 2 Cluster analysis 2 Clustering techniques 2 Covariance matrix 2 False alarms 2 Fault detection 2 Industrial installations 2 Industrial processs 2 Inspection equipment 2 Methanol 2 Methanol plants 2 Multiple operating modes 2 Multiple operations 2 Multivariant analysis 2 Multivariate statistical process monitoring 2 Nominal operations 2 Normal distribution 2 Operating modes 2 Process monitoring 2 Realistic simulation 2 Robust clustering 2 Statistical process control 2 Steady-state operation 2 Tennessee Eastman process 2