Abstract: There is disclosed a plant operation data acquiring apparatus, which acquires and stores plant operation data, and backs up the plant operation data using a backup storage medium in accordance with a backup request. The plant operation data acquiring apparatus combines the plant operation data with a simple data search program for controlling a computer to realize a simple data search function of simply searching the plant operation data when executing backup processing, and backs up then using the backup storage medium.

Abstract: There is disclosed a plant operation data acquiring apparatus, which acquires and stores plant operation data, and backs up the plant operation data using a backup storage medium in accordance with a backup request. The plant operation data acquiring apparatus combines the plant operation data with a simple data search program for controlling a computer to realize a simple data search function of simply searching the plant operation data when executing backup processing, and backs up then using the backup storage medium.

Abstract: A gene expression state estimating system according to the present invention includes an input device 1 for inputting microarray data, a program-controlled data analyzer 2, and an output device 3. The data analyzer 2 has parameter estimating means 21 and 22 for estimating distributed parameters for each component of a mixed normal distribution and a mixing ratio parameter using gene expression level data given from the input device 1, and posterior probability calculating means 23 for calculating the posterior probabilities of gene expression in each channel using each of the estimated parameters. The calculated posterior probabilities are outputted to the output device 3.

Abstract: More precise correction of global and local distortions of microarray data and correction of measurement errors caused by a difference in sensitivity between fluorescent dyes. A data standardization unit for a first process inputs gene expression intensity data from an input device, standardizes the gene expression intensity data by using grid-by-grid order statistics on the assumption that most genes are in a non-expression state, and outputs the standardized gene expression intensity data. A spot-position-based correction unit for a second process estimates a distortion depending on a spot position on a grid by grid basis by a nonparametric smoothing method and outputs gene expression intensity data whose distortion depending on the spot position has been corrected.