Method and apparatus for hierarchical data analysis based on cross-correlation

摘要

The present invention generally relates to accessing data selected by a user based on correlation analysis. It is proposed in the present invention to introduce attribute value normalization and a hierarchical data analysis based on mutual correlations between attributes. Normalization of scale values of attributes to nominal values provides a basis for the hypothesis of correlations between attributes, thus scientifically justifying further observation and comparison. Multiple layer hierarchical investigation enables not only analysis on the level of attributes but also of related data, which provides a more detailed observation.