DATA TREND ANALYSIS METHOD, DATA TREND ANALYSIS SYSTEM, AND NARROWING AND RESTORING DEVICE

摘要

To accurately obtain the same result as analysis using all data items while reducing a calculation load by selecting the data items to be analyzed, and to facilitate interpreting analysis results by collecting similar attributes even if the number of items is large.SOLUTION: A computer extracts relationships between data items as for a plurality of data tables, generates related information of the data items, generates restoration information of the data items on the basis of the related information, generates a group of the data items on the basis of the related data, selects a representative data item from the data items in the group on the basis of the related information and the restoration information, performs a trend analysis of the data corresponding to the representative data item, restores the data item of the group to which the representative data item belongs on the basis of the restoration information, and outputs a result of the trend analysis of the data corresponding to the representative data item and the restoration result of the data item.SELECTED DRAWING: Figure 1