Patent US 5,544,281

A method of supporting decision-making for predicting future time-series data by using measured values of time-series data stored in a storage and knowledge stored in a knowledge base. The knowledge is related to interpretation and prediction of the time-series data. A plurality of time-series data stored in the storage device is prepared in an order of time-serial points corresponding to the time-series data. Knowledge which includes reference to the time-series data using a relative time interval from the time-series data is stored to the knowledge base. One the time-serial points of the time-series data is designated. Thereafter, the relative time interval in the knowledge is subtracting from the designated time-serial point to determine the time-serial point corresponding to the time-series data, and the future time-series data is inferred by using the knowledge and the time-series data.