Model parameter value estimating apparatus and method, program, recording medium recording program, model parameter value estimating system

摘要

A model model (2) for predicting the operation of the target product, the plant model (2) for inputting the model parameter value and calculating the process value, and a model parameter A storage unit 4 for storing the calculation results of the model parameter value estimating unit 3 and an output unit 5 for outputting the calculation result of the model parameter value estimating unit 3 In the model parameter value estimating apparatus 100, the model parameter value estimating unit 3 receives the measured values of the target product and the plurality of process values calculated in the plant model 2, and calculates a plurality of The probability density function accumulated in the accumulation unit 4 is updated by considering the function generated based on the accuracy evaluation of the process value as a likelihood function. Thereby, it is possible to provide a model parameter value estimating apparatus and an estimating method capable of estimating a model parameter value even when the distribution shape or the statistical quantity with respect to the probability density function is unknown or difficult to estimate.