Patent ID: 8346505

Claim:
Method for determining which one or more time series parameters of a plurality of time series parameters relating to operation and/or behaviour of a system over time are correlated with a first state and/or first condition of the system, comprising: providing time series data including data relating to a time series of each of the plurality of time series parameters; determining at least two first time periods, wherein the system is in the first state and/or first condition during the at least two first time periods; determining at least one second time period, wherein the system is in a second state and/or second condition during the at least one second time period; determining, for each respective time series parameter of the plurality of time series parameters, a first characteristic parameter relating to a first characteristic of the time series of the respective time series parameter for each of the at least two first time periods and the at least one second time period; and determining, using a computer processor, which one or more time series parameters of the plurality of time series parameters relating to the operation and/or behaviour of the system over time are correlated with the first state and/or first condition of the system by determining, for each respective time series parameter of the plurality of time series parameters, whether or not the respective time series parameter is correlated with the first state and/or first condition of the system based on the first characteristic parameters of the respective time series parameter determined for each of the at least two first time periods and the at least one second time period.