{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,3,10]],"date-time":"2024-03-10T02:40:50Z","timestamp":1710038450216},"reference-count":40,"publisher":"World Scientific Pub Co Pte Ltd","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Unc. Fuzz. Knowl. Based Syst."],"published-print":{"date-parts":[[2009,2]]},"abstract":"<jats:p>Fuzzy logic programming has been lately used as a general framework for representing and handling imprecise knowledge. In this paper, we define the syntax and the semantics of definite weighted fuzzy logic programs, which extend definite fuzzy logic programs by allowing the inclusion of different significance weights in the individual atoms that make up the antecedent of a fuzzy logic rule. The weights add expressiveness to a fuzzy logic program and allow the determination of the level up to which an atom in the antecedent of a rule may affect the truth value of its consequent. In describing the semantics of definite weighted fuzzy logic programs we introduce the notion of the generalized weighted fuzzy conjunction operator, which can be regarded as a weighted t-norm based aggregation. We determine the properties of generalized weighted fuzzy conjunction operators and provide several examples. A methodology for constructing generalized weighted fuzzy conjunction operators using generator functions of existing t-norms is also introduced. Finally, a method for setting up a parametric weighted fuzzy logic program and automatically adapting the weights of its rules using a numerical dataset is developed.<\/jats:p>","DOI":"10.1142\/s0218488509005759","type":"journal-article","created":{"date-parts":[[2009,2,5]],"date-time":"2009-02-05T10:49:05Z","timestamp":1233830945000},"page":"85-135","source":"Crossref","is-referenced-by-count":1,"title":["DEFINITION AND ADAPTATION OF WEIGHTED FUZZY LOGIC PROGRAMS"],"prefix":"10.1142","volume":"17","author":[{"given":"ALEXANDROS","family":"CHORTARAS","sequence":"first","affiliation":[{"name":"School of Electrical and Computer Engineering, National Technical University of Athens, 157 80 Zografou, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"GIORGOS","family":"STAMOU","sequence":"additional","affiliation":[{"name":"School of Electrical and Computer Engineering, National Technical University of Athens, 157 80 Zografou, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ANDREAS","family":"STAFYLOPATIS","sequence":"additional","affiliation":[{"name":"School of Electrical and Computer Engineering, National Technical University of Athens, 157 80 Zografou, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2011,11,21]]},"reference":[{"key":"rf5","doi-asserted-by":"publisher","DOI":"10.1007\/978-94-011-5300-3"},{"key":"rf6","volume-title":"Fuzzy Sets and Fuzzy Logic: Theory and Applications","author":"Klir G.","year":"1995"},{"key":"rf7","doi-asserted-by":"publisher","DOI":"10.1007\/3-540-50171-1_6"},{"key":"rf8","doi-asserted-by":"publisher","DOI":"10.1109\/69.940732"},{"key":"rf9","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-0114(01)00106-3"},{"key":"rf10","doi-asserted-by":"publisher","DOI":"10.1016\/0020-0255(86)90035-6"},{"key":"rf11","first-page":"455","volume":"14","author":"Sanchez E.","journal-title":"Information Sciences"},{"key":"rf12","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-4571(198701)38:1<23::AID-ASI4>3.0.CO;2-3"},{"key":"rf13","doi-asserted-by":"publisher","DOI":"10.1109\/21.87068"},{"key":"rf14","doi-asserted-by":"publisher","DOI":"10.1002\/int.10162"},{"key":"rf15","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-0114(98)00300-5"},{"key":"rf16","doi-asserted-by":"publisher","DOI":"10.1007\/3-540-44652-4_66"},{"key":"rf17","doi-asserted-by":"publisher","DOI":"10.1007\/3-540-45788-7_9"},{"key":"rf18","first-page":"230","volume":"1730","author":"Mateis C.","journal-title":"Lecture Notes in Artificial Intelligence"},{"key":"rf19","doi-asserted-by":"publisher","DOI":"10.1007\/3-540-45402-0_26"},{"key":"rf20","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-540-45138-9_48"},{"key":"rf21","volume-title":"Principles of database and knowledge-base systems","author":"Ullman J. 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