| 摘要 |
Self-evolving indexing systems and methods store and retrieve information on multiple types of items. Indices evolve at least in part by providing subsequent users with summary comparison usage information based upon the choices of previous users, and in part by permitting subsequent users to add new add classifications, parameters, and values instead of being limited by those previously used by others. Summary comparison usage information is preferably communicated to users in the form of listings in which the choices are presented in order of descending usage. Contemplated systems and methods can be used to describe every conceivable type of product and service, as well as such diverse types of information as news items, historical facts, book reviews, questionnaires, opinion surveys, case law, and the topics discussed in various chat rooms. Preferred database structures include those having multiple tables for item classifications, parameters, values, and parameter-value pairs. It is especially contemplated that parameters and values can be cross-utilized across with respect to many different types of items.
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