Daugiakriterinio vertinimo rodiklių svorių nustatymas, remiantis jų tarpusavio sąveika

Abstract

Vilniaus Gedimino technikos universitetas, Saulëtekio al. 11, LT-10223 Vilnius-40, Lietuva El. paðtas romualdas.ginevièius@adm.vtu.lt Áteikta 2005-11-04; priimta 2005-12-07 Santrauka. Nustatyti veiksniø svorius, atliekant daugiakriterinius vertinimus, yra keblu, kai veiksniø yra gana daug. Problemà galima supaprastinti teigiant, kad ðiuos veiksnius iðreiðkiantys rodikliai, kaip sistemos elementai, yra tarpusavyje susijae. Ðios sàsajos suformuoja kiekvieno sistemos elemento potencialà, kuris gali didëti ar maþëti, atsiþvelgiant á elementø sàveikos pobûdá. Visø sistemos elementø sàveikos krypèiai ir stiprumui nustatyti uþtenka turëti ekspertø nuomonae apie bet kurio sistemos elemento sàveikos kryptá ir ryðá su visais kitais sistemos elementais. Paskui, naudodamiesi dydþiø tarpusavio poveikio tranzityvumo savybëmis, galime nustatyti visø likusiø elementø ryðiø kryptá ir stiprumà, gauname iki galo suderintà sistemà. Þinant kiekvieno sistemos elemento skaièiuojamàjá ir faktiná potencialà, galima nustatyti jø svorius. Pagrindiniai þodþiai: daugiakriteriniai vertinimai, veiksniø svoriø nustatymo bûdai. Abstract. When the number of the criteria used in determining the criteria weights in multicriteria evaluation is sufficiently large some problems can arise. Problem solution may be simplified by assuming that the criteria describing various aspects of the object are interrelated as the elements of the system. These relationships form the potential of each element of the system which can increase or decrease, depending on the relationships between the elements and their nature. To determine the directionality and strength of interrelationship between the system elements, it is sufficient to have an expert's judgement about the directionality and strength of the relationship between one element and all other elements of the system. Then, basing themselves on the transitivity of interrelationship between values, we can determine the directionality and strength of relationships of the remaining elements. Given the calculated and actual potential of each element of the system, the weights of the elements can be determined.