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The problem of testing statistical hypotheses of independence of two multiresponse variables is considered. This is a specific inferential environment to analyze certain patterns particularly for the ąuestionnaire data. Data analyst normally looks for certain combination of responses being morę freąuently chosen than the other ones. As a result of experimental study we consider an algorithm that can...
In this report we propose a new approach to types and static type checking in object-oriented database query and programming languages. In contrast to typical approaches to types which involve very advanced mathematical concepts we present a type system from the practitioners' point of view. We argue that many features of current object-oriented query/programming languages, such as ellipses, automatic...
We present a new approach to optimization of ąuery languages using materialization of resułts previously answered ąueries. It is based on the stack-based approach (SBA) to object-oriented ąuery languages, which assumes the description of semantics in the form of abstract implementation of ąuery/programming language constructs. The semantics is expressed in terms of naming, scoping and binding. It...
We deal with a game-theoretic framework involving a finite number of infinite populations, members of which have a finite number of available strategies. The payoff of each individual depends on her own action and distributions of actions of individuals in all populations. A method to find all equilibria is discussed which requires the search through all nonempty subsets of the types' strategy sets,...
Praca dotyczy algebr, które można otrzymać przez wyposażenie zbiorów procesów sieci Petriego w składanie sekwencyjne i równoległe. Rozważane algebry są kategoriami z dodatkową strukturą i z dodatkowymi własnościami. Dowodzi się, że wszystkie struktury algebraiczne o takich własnościach dają się przedstawiać jako algebry procesów sieci Petriego.
W pracy wprowadzono pojęcie generatora diagonalnego kopuły archimedesowskiej. Podano ogólny sposób konstrukcji parametrycznej rodziny generatorów diagonalnych, wyznaczonej przez dystrybuantę. Pokazano, że z taką dystrybuantą w naturalny sposób związana jest parametryczna grupa przekształceń mająca generator pochodzący z pewnej rodziny funkcji. Podano równanie różniczkowe w zależności od elementów...
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