User:MRewald/Indexing

Five-Axiom-Theory of Indexing
Robert Fugmann proposed a theory of indexing, based on a system of 5 axioms. Fugman was invited to present his theory at the International Classification Research Forum of the ASIS&T in 1985. The paper was rewarded as Best Paper in 1986.

The theory is based on the following five axioms:
 * 1. Definability
 * Definition of what is relevant to the inquirer in terms of concepts and concept relations.


 * 2. Order
 * "Any compilation of information relevant to a topic is an order-creating process."


 * 3. Sufficient Degree of Order
 * The more extensive the search results are or the more frequently search queries are made, the higher are the demands on the order of the search results.


 * 4. Representational Predictability
 * "The completeness of any directed search for relevant responses (and especially the recall ratio) depends on the representational predictability of the modes of expression for concepts and concept relations in the search file."
 * The less arbitrary and the more predictable the result of a search query is, the better its completeness can be achieved.


 * 5. Representational Fidelity
 * "The accuracy responses (and specially the precision ratio) depends on the representational fidelity of the modes of expression with which concepts and concept relations are expressed in the search file."
 * The accuracy of the answers depends on the fidelity of the means of expression with which concepts and conceptual relationships are expressed in the search query.

<!-- == Five-Axiom-Theory of Indexing == Robert Fugmann proposed a theory of indexing, based on a system of 5 axioms, in an invited talk at the International Classification Research Forum of the ASIS&T in 1985. The paper was rewarded as Best Paper in 1986.

The compilation of information relevant to a topic can be delegated only to the extent to which an inquirer can define his topic in terms of concepts and concept relations.
 * 1. Axiom of Definability

Any compilation of information relevant to a topic is an order-creating process.
 * 2. Axiom of Order


 * 3. Axiom of Sufficient Degree of Order
 * "The demands made on the degree of order in the information compilation increase as the size of the collection and/or the frequency of the searches in this collection increase."

The completeness of any directed search for relevant responses (and especially the recall ratio) depends on the representational predictability of the modes of expression for concepts and concept relations in the search file.
 * 4. Axiom of Representational Predictability

The accuracy of any directed search for relevant responses (and specially the precision ratio) depends on the representational fidelity of the modes of expression with which concepts and concept relations are expressed in the search file. -->
 * 5. Axiom of Representational Fidelity