講座時間：2013年5月22日周三下午 1 3：30-15：30
講座地點：泰山科研樓517
講座題目：Learning multicriteriapreference models: an experimental analysis and its consequences
內容簡介：
? Since the 70’s“ordinal regression” is used for learning additive value function models on thebasis of holistic preference judgments. The decision maker is supposed to beable to say that such and such alternative is preferred to such and such other;this information is translated into constraints of a linear program, whichoutputs an additive value function compatible with the declared preferences(provided such a function exists). Of course, most often, there are many suchfunctions and the linear program is conceived to provide a representative one. Some more recent methods work with all compatible value functions. Inthis talk, we present numerical experiments performed in view of appreciatingthe degree of indetermination of the obtained model or, alternatively, how muchpreference information is needed to determine an additive value function withsome accuracy. Building on these conclusions, we have designed and testedefficient methodologies to question the decision maker in such a way as tomaximize the information contained in the declared preferences. In other words,how to make the constraints of the linear model as strong as possible in orderto reduce the indetermination of the resulting preference model. In the samespirit, we have also studied the learning of another type of preference model,the Electre Tri model. This model of preference assigns the alternatives topredefined ordered categories (such as e.g. “good”, “average”, “bad”) on thebasis of a sort of voting rule. Such a method can be recommended when thecriteria are assessed on ordinal scales.
主講人簡介：
? Prof. Marc Pirlot received his PhD degree in Mathematics fromUniversité de Mons-Hainaut (Belgium)in 1981. He currently teaches mathematics, operations research and statisticsto students in engineering at the Université de Mons. He is the author of over75 research publications including 40 articles in refereed internationaljournals, 20 articles in refereed international conferences proceedings and 10book chapters. He has written 3 books as co-author and edited 5 other books. Hehas made several research sojourns in laboratories of foreign universities. Hehas been promotor or co-promotor of several research projects funded by theBelgian Walloon region or by firms. He is one of the founders of the DecisionDeck Project, a collaborative software development initiative in the domain ofdecision support. He is currently advisory editor of 4 international journals.He has been a member of the organizing committee or the programme committee ofmany conferences and colloquia.
