A Knowledge Amplifier with Structured Expert Randomization (KASER) that exploits a structured expert randomization principle. One KASER embodiment allows the user to supply declarative knowledge in the form of a semantic tree using single inheritance. Another KASER embodiment includes means for automatically inducing this semantic tree, such as, for example, means for performing randomization and set operations on the property trees that are acquired by way of, for example, database query and user-interaction.