tailieunhanh - Semantic quantitation of linguistic values embedded in complete linear hedge algebras and querying in the linguistic database

This article is about quantification semantics of linguistic terms embedded in Complete Linear Hedge Algebras and a application in querying in the database having the linguistic terms. The calculation is done both to the language values and real numbers. Query results are quite reasonable. | JOURNAL OF SCIENCE OF HNUE Interdisciplinary Science 2013 Vol. 58 No. 5 pp. 30-38 This paper is available online at http SEMANTIC QUANTITATION OF LINGUISTIC VALUES EMBEDDED IN COMPLETE LINEAR HEDGE ALGEBRAS AND QUERYING IN THE LINGUISTIC DATABASE Nguyen Tan An1 and Nguyen Van Quyen2 1 Faculty of Information Technology Hanoi National University of Education 2 Department of Post Graduate Hai Phong University Abstract. In fuzzy databases represented by linguistic values linguistic terms carry qualitative semantics. However when it comes to calculating linguistic terms or when a comparison between linguistic terms is needed it is necessary to quantify their semantics. If the method of quantitation is suitable the computational efficiency at the next step will be higher. When a database is embedded in Complete Linear Hedge Algebras each base language values may have accompanying emphasis hedges. In such cases the semantics of linguistic terms are quantified to become subintervals of an interval 0 1 . This article is about quantification semantics of linguistic terms embedded in Complete Linear Hedge Algebras and a application in querying in the database having the linguistic terms. The calculation is done both to the language values and real numbers. Query results are quite reasonable. Keywords Computation with words semantics of terms hedge algebras linguistic representation model. 1. Introduction Systems support making decisions increasingly tend to approach human processing information. This is how information processing of collected data or information that is none-precise incomplete uncertain and or vague and described by words in natural languages take place. The processing of vague data represented by linguistic values usually occurs in following ways i Using fuzzy set theory Each linguistic value is represented by a fuzzy set characterized by a membership function or a membership function plus a no-membership function. Received March 2 2013. .