1. A computer-implemented method of correlating chemical and/or biological concepts with other information in a knowledge base, said knowledge base comprising 1) a taxonomy of biological and/or chemical concepts arranged in a hierarchical structure comprising at least one top-level category, 2) a plurality of feature sets and/or feature groups, each feature set comprising at least one feature of chemical or biological information and associated statistical information and each feature group comprising a list of related features wherein at least some of said feature sets and feature groups are associated with one or more concepts in the taxonomy, said method comprising: for each of a plurality or all of the concepts in the taxonomy, identifying feature sets that contribute to scoring the concept under consideration by identifying all feature sets associated with the concept under consideration and/or its child concepts; receiving pre-computed correlation scores and/or rank scores between the contributing feature sets and other information in the knowledge base; and calculating a score indicating correlation between the concept under consideration and other information in the knowledge base based on the precomputed correlations and/or rank scores.