Weighted descriptors and relative indexing in a document retrieval system model

摘要

Methods of weighting of descriptors in document search patterns are discussed. The concept of relative indexing and the conditions which should be satisfied by the descriptor weight in a document search pattern according to the idea of relative indexing are determined.A relative indexing procedure is outlined and some of the consequences of such an approach are examined in examples. The procedure is based on the modification method of document search patterns oriented on the users' informational needs not only as expressed in queries formulated but also in their opinions on the particular system answers.