In the paper new logics oriented on hierarchical data are developed. Algebras of partial predicates over such data with special compositions as operations form a semantic base for constructed logics. Characteristic pr...
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In the paper new logics oriented on hierarchical data are developed. Algebras of partial predicates over such data with special compositions as operations form a semantic base for constructed logics. Characteristic property of such logics is the usage of composite names in their languages. Semantic properties of these logics are studied;corresponding sequent calculi are defined, their soundness and completeness are proved for logics of renominative level.
Composition-nominative logics are algebra-based logics of partial predicates constructed in a semantic-syntactic style on the methodological basis, which is common with programming. They can be considered as generaliz...
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We investigate algorithms for solving the satisfiability problem in composition-nominative logics of quantifier-equational level. These logics are algebra-based logics of partial predicates constructed in a semantic-s...
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We investigate algorithms for solving the satisfiability problem in composition-nominative logics of quantifier-equational level. These logics are algebra-based logics of partial predicates constructed in a semantic-syntactic style on the methodological basis, which is common with programming;they can be considered as generalizations of traditional logics on classes of partial predicates that do not have fixed arity. We show the reduction of the problem in hand to the satisfiability problem for classical first-order predicate logic with equality. The proposed reduction requires extension of logic language and logic models with an infinite number of unessential variables. The method developed in the paper enables us to use existent satisfiability checking procedures also for quantifier composition-nominative logic with equality.
We propose methods for solving the satisfiability and validity problems in many-sorted composition-nominative pure predicate logics (without functions and with equality). These logics are algebra-based logics of many-...
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In the paper we present special program specification algebras and logics defined for classes of quasiary mappings. Informally speaking, such mappings are partial mappings defined over partial states (partial assignme...
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In this paper we present an approach to support selfregulated learn-flows in the collaborative environment Metafora. In this environment students construct Visual Language Plans. Those plans model workflows of learnin...
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In this paper we present an approach to support selfregulated learn-flows in the collaborative environment Metafora. In this environment students construct Visual Language Plans. Those plans model workflows of learning activities, which the students execute to solve complex learning scenarios across different tools. Visual Language plans were already used in the context of different pedagogical studies but have no formal syntax or semantics, yet. In this paper, we present the syntax of Visual Language Plans and develop a mapping from Visual Language Plans to Petri net defining semantics. With the help of this semantics, the environment can support the students executing their learnflows. If students execute activities given in a Visual Language Plan which are not enabled in the corresponding Petri net, feedback messages occur guiding the students. Students can refine their Visual Language Plan during execution. If a plan changes the corresponding Petri net model also changes. Analyzing the newly generated Petri net model can help to uncover faulty states of the learnflow model.
The paper is devoted to the mathematical foundations of the linearization algorithms - the method of conflict resolution that occurs in object-oriented programming languages which support multiple inheritance. The mai...
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ISBN:
(纸本)9781509014149
The paper is devoted to the mathematical foundations of the linearization algorithms - the method of conflict resolution that occurs in object-oriented programming languages which support multiple inheritance. The main object of study is the reflexive-transitive closure of a binary relation. The basic properties of this closure are found: the criterion to be partial order, closure is the closure operator, denotative representations of closure in terms of its properties and as the least solution of some equation (the structure of the set of all solutions of this equation is established).
This book constitutes the refereed proceedings of the 8th International Conference on ICT in Education, Research, and Industrial Applications, held in Kherson, Ukraine, in June 2012.;The 14 revised full papers were ca...
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ISBN:
(数字)9783642357374
ISBN:
(纸本)9783642357367
This book constitutes the refereed proceedings of the 8th International Conference on ICT in Education, Research, and Industrial Applications, held in Kherson, Ukraine, in June 2012.;The 14 revised full papers were carefully reviewed and selected from 70 submissions. This book begins with an invited contribution presenting the substance of one of ICTERI 2012 invited talks. The chapter deals with the issues of abstraction and verification of properties in real-time Java programs. The rest of the volume is structured in four topical parts: ICT Frameworks, Infrastructures, Integration, and Deployment; Formal Logic and Knowledge-Based Frameworks; ICT-Based Systems Modeling, Specification, and Verification: ICT in Teaching and Learning.
The methods of conflict resolution of names in programming languages that allow multiple inheritance were researched. Those methods are based on the linearization of the classes. The idea of linearization is to reduce...
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The methods of conflict resolution of names in programming languages that allow multiple inheritance were researched. Those methods are based on the linearization of the classes. The idea of linearization is to reduce multiple inheritance to single, in which the problem of selecting a suitable attribute is solved trivially. The definition of a hierarchy of classes is introduced. The property of monotonicity was clarified. The idea of monotonicity is that all the attributes that the class inherits either identified in its direct ancestors, or inherited them. Methods of conflict resolution used in programming languages CLOS and LOOPS were formally defined.
This book constitutes the thoroughly refereed proceedings of the 9th International Conference on Information and Communication Technologies in Education, Research, and Industrial Applications, held in Kherson, Ukraine...
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ISBN:
(数字)9783319039985
ISBN:
(纸本)9783319039978
This book constitutes the thoroughly refereed proceedings of the 9th International Conference on Information and Communication Technologies in Education, Research, and Industrial Applications, held in Kherson, Ukraine, in June 2013. The 18 revised full papers presented were carefully reviewed and selected from 125 submissions. The papers are organized in topical sections on systems, infrastructures, and integration; semantics, knowledge engineering and management; ICT in teaching methodologies and didactics; model-driven software development and verification.
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