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Hassan CHARAF Dr.
Associate Professor
Room: I.B.157.
Phone: +36 (1) 463-3969
Fax: +36 (1) 463-2871
E-mail:
Homepage: http://www.aut.bme.hu/portal/hassan

Department of Automation and Applied Informatics
Postal address: Budapest 1111, Goldmann György tér 3. IV. em.
Secretariat: V2. épület 433.
Phone(36-1) 463-2870
Fax(36-1) 463-2871
Curriculum Vitae
All publications

Publications
Inbooks
2007 
Bertalan Forstner, Gergely Csúcs, Imre Kelényi, Hassan Charaf
Peer-to-Peer Information Retrieval Based on Fields of Interest 
Cognitive Wireless Networks, 2007
Imre Kelényi, Gergely Csúcs, Bertalan Forstner, Hassan Charaf
Peer-to-Peer File Sharing for Mobile Devices 
Mobile Phone Programming: Application to Wireless Networks, 2007
2003 
Róbert Tuschák, István Vajk, Ruth Bars, Jenő Hetthéssy, András Barta, Hassan Charaf
Teaching basic control theory: a novel approach using web - matlab based teaching materials 
Innovations 2003: World innovations in engineering education and research, 2003
Journals
2009 
Tamás Mészáros, Gergely Mezei, Hassan Charaf
Engineering the Dynamic Behavior of Metamodeled Languages 
Simulation, Special Issue on Multi-Paradigm Modeling, 2009
2008 
László Angyal, László Lengyel, Hassan Charaf
Novel Techniques for Model-Code Synchronization 
Electronic Communications of the EASST, 2008
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Validated Model Transformation-Driven Software Development 
Int. J. Computer Applications in Technology, 2008
2007 
László Angyal, László Lengyel, Hassan Charaf
Detecting Renamings in Three-way Merging 
Acta Polytechnica Hungarica, 2007
2006 
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Constraint Validation in Model Compliers 
Journal of Object Technology, 2006
Tamás Vajk, Hassan Charaf
Mobile Application Development to Multiple Platforms 
Buletinul Stiintific al Universitatii "Politehnica" din Timisoara, ROMANIA Seria AUTOMATICA si CALCULATOARE PERIODICA POLITECHNICA, Transactions on AUTOMATIC CONTROL and COMPUTER SCIENCE, 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
Model Transformation with a Visual Control Flow Language 
International Journal of Computer Science (IJCS), 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
A Strict Control Flow Specification for Model Transformation 
WSEAS Transactions on Computers, 2006
Gergely Mezei, László Lengyel, Tihamér Levendovszky, Hassan Charaf
Minimizing the Traversing Steps in the Code Generated by OCL 2.0 Compilers 
WSEAS Transactions on Information Science and Applications, 2006
2005 
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Constraint Validation Support in Visual Model Transformation Systems 
Acta Cybernetica, 2005
László Lengyel, Hassan Charaf
Aspect-Oriented Constraint Management in Metamodel-Based Model Transformation Rules 
Periodica Polytechnica Electrical Engineering, 2005
Tihamér Levendovszky, Hassan Charaf
Pattern Matching in Metamodel-Based Model Transformation Systems 
Periodica Polytechnica Electrical Engineering, 2005
Bertalan Forstner, Hassan Charaf
Modeling Peer-to-Peer Networks with Interest-Based Clusters Transaction on Informatika  
System Sciences and Engineering , 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
A Visual Control Flow Language and Its Termination Properties 
Transactions on Enformatika, 2005
Bertalan Forstner, Hassan Charaf
Neighbor Selection in Peer-to-Peer Networks Using Semantic Relations 
WSEAS Transaction on Information Science and Applications, 2005
Ágnes Bogárdi-Mészöly, Gábor Imre, Hassan Charaf
Investigating Factors Influencing the Response Time in J2EE Web Applications 
WSEAS Transactions on Computers, 2005
Tihamér Levendovszky, László Lengyel, Hassan Charaf
A UML Class Diagram-Based Pattern Language for Model Transformation Systems 
WSEAS Transactions on Computers, 2005
Tihamér Levendovszky, László Lengyel, Hassan Charaf
Extending the DPO Approach for Topological Validation of Metamodel-Level Graph Rewriting Rules 
WSEAS Transactions on Information Science and Applications, 2005
2004 
Tihamér Levendovszky, László Lengyel, Hassan Charaf
Implementing a Metamodel-Based Model Transformation System 
Buletinul Stiintific al Universitatii "Politehnica" din Timisoara, ROMANIA Seria AUTOMATICA si CALCULATOARE PERIODICA POLITECHNICA, Transactions on AUTOMATIC CONTROL and COMPUTER SCIENCE, 2004
Tihamér Levendovszky, László Angyal, Hassan Charaf
Software Design Trade-Offs in Highly Configurable User Interface Construction 
ROMANIA Seria AUTOMATICA si CALCULATOARE PERIODICA POLITECHNICA, Transactions on AUTOMATIC CONTROL and COMPUTER SCIENCE , 2004
2002 
Sándor Juhász, Hassan Charaf
Performance Modeling of Cooperating Tasks in PC Clusters 
Periodica Polytechnica, Electrical Engineering, 2002
2000 
István Vajk, Jenő Hetthéssy, Hassan Charaf
Neural network approximators in modelling dynamic nonlinear systems 
Electrotechnik und Informationstechnik, 2000
1998 
Hassan Charaf, István Vajk
A new structure for nonlinear system identification using neural networks 
Periodica Polytechnica Ser.El.Eng, 1998
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Constraint Validation in Software Model Transformation Systems 
Journal for Universal Computer Science ,
Ágnes Bogárdi-Mészöly, Tihamér Levendovszky, Hassan Charaf
Models for Predicting the Performance of ASP.NET Web Applications 
Periodica Polytechnica Electrical Engineering,
L. Opoczky, M.Hilger, Jenő Hetthéssy, Hassan Charaf
Application of Neutral Networks to Model the Grinding Technological and Quality Relationships of Cements with Limestone Additive 
Powder Technology magazine ,
Conferences
2009 
Péter Ekler, Hassan Charaf
Mobile Motion and Noise Detector Application with Network Support 
Java One (2009), 2009
2008 
Bence Kővári, István Albert, Hassan Charaf
A General Representation for Modeling and Benchmarking Off-line Signature Verifiers 
12th WSEAS Int. Conf. on COMPUTERS, 2008
László Angyal, László Lengyel, Hassan Charaf
A Synchronizing Technique for Syntactic Model-Code Round-Trip Engineering 
15th Annual IEEE International Conference and Workshop on the Engineering of Computer Based Systems, 2008
Bertalan Forstner, Imre Kelényi, Hassan Charaf
Applying User Profiles in Transient Peer-to-Peer Environment 
43th IEEE International Conference on Communications (ICC 2008), 2008
Péter Ekler, Hassan Charaf
Analyzing the Concept of Involving Low End Devices in a Cooperative Network 
43th IEEE International Conference on Communications (ICC 2008), 2008
Péter Ekler, Hassan Charaf
Building Motion and Noise Detector Networks from Mobile Phones 
9th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics (CINTI 2008), 2008
Péter Ekler, Hassan Charaf
Investigating the Role of Mobile Devices in Social Networks 
MicroCAD 2008 International Scientific Conference, 2008
Bence Kővári, Gergely Kiss, Hassan Charaf
Stroke Extraction and Stroke Sequence Estimation for Off-line Signature Verification 
The Eighth IASTED International Conference on Visualization, Imaging, and Image Processing, 2008
2007 
Ágnes Bogárdi-Mészöly, Takeshi Hashimoto, Tihamér Levendovszky, Hassan Charaf
Improved Evaluation Algorithm for Performance Prediction with Error Analysis 
11th IEEE International Conference on Intelligent Engineering Systems, 2007
Ágnes Bogárdi-Mészöly, Tihamér Levendovszky, Hassan Charaf
Extending the Mean-Value Analysis Algorithm According to the Thread Pool Investigation 
5th IEEE International Conference on Industrial Informatics, 2007
Márk Asztalos, László Lengyel, Tihamér Levendovszky, Hassan Charaf
Graph Transformation Contest - UML to CSP Transformation 
Applications of Graph Transformation 2007 (AGTIVE) - Graph Transformation Tool Contest, 2007
Ágnes Bogárdi-Mészöly, Takeshi Hashimoto, Tihamér Levendovszky, Hassan Charaf
Thread Pool-Based Improvement of the Mean-Value Analysis Algorithm 
European Computing Conference, Lecture Notes in Computer Science, 2007
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
A Distribution Technique For Graph Rewriting and Model Transformation Sytems 
IASTED International Conference on PDCN, 2007
Márk Asztalos, László Lengyel, Tihamér Levendovszky, Hassan Charaf
Termination Analysis of the Transformation UML to CSP 
Inproceedings of Computational Intelligence and Informatics 8th International Symposium of Hungarian Researchers, 2007
László Lengyel, Tihamér Levendovszky, Tamás Mészáros, Hassan Charaf
Supporting Design Patterns in Graph Rewriting-Based Model Transformation 
International Working Conference on Evaluation of Novel Approaches to software Engineering, 2007
Péter Ekler, Hassan Charaf
Developing of Network Mobile Application 
microCAD International Scientific Conference, 2007
László Angyal, László Lengyel, Hassan Charaf
A Model-Code Synchronization Approach 
Proc. of 6th International Conference of PhD Students, University of Miskolc, 2007
László Angyal, László Lengyel, Hassan Charaf
Object-Oriented Identifier Renaming Correction in Three-Way Merge 
Proc. of 8th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, 2007
Tamás Vajk, Gergely Mezei, Hassan Charaf
Architecture of an In-Memory Transformation Engine 
Proc. of 8th International Symposium of Hungarian Researchers on Computational Intelligence, 2007
László Angyal, László Lengyel, Hassan Charaf
Bi-directional Model Transformation and Model Transformation Tracing Facilities in A Model Transformation Framework 
Proc. of MicroCAD 2007 International Scientific Conference, University of Miskolc, 2007
László Angyal, László Lengyel, Hassan Charaf
Supporting Model-Based Iterative Software Development 
Proc. of the Third International ERCIM Workshop on Software Evolution, 2007
Gergely Mezei, László Lengyel, Tihamér Levendovszky, Hassan Charaf
Towards Parallel Model Transformations  
Workshop on Multi-Paradigm Modeling, 2007
2006 
Péter Cserkúti, Tihamér Levendovszky, Hassan Charaf
Survey on Subtree Matching 
10th International Conference on Intelligent Engineering Systems (INES 2006), 2006
Péter Cserkúti, Tihamér Levendovszky, Hassan Charaf
A Comparison of Subtree Matching Algorithms 
The 7th International Conference on Technical Informatics, 2006
Ágnes Bogárdi-Mészöly, Tihamér Levendovszky, Hassan Charaf
Performance Factors in ASP.NET Web Applications with Limited Queue Models 
10th IEEE International Conference on Intelligent Engineering Systems, 2006
Bertalan Forstner, László Lengyel, Tihamér Levendovszky, Gergely Mezei, Imre Kelényi, Hassan Charaf
Model-Based System Development for Embedded Mobile Platforms 
13th Annual IEEE International Conference and Workshop on the Engineering of Computer Based Systems (ECBS), 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Bertalan Forstner, Hassan Charaf
Towards a Model-Based Unification of Mobile Platforms 
4th ACS/IEEE International Conference on Computer Systems and Applications, AICCSA-06, 2006
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
Implementing an OCL 2.0 Compiler for Metamodeling Environments 
4th Slovakian - Hungarian Joint Symposium on Applied Machine Intelligence, SAMI 2006, 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
Execution Properties of a Visual Control Flow Language 
4th Slovakian - Hungarian Joint Symposium on Applied Machine Intelligence, SAMI 2006, 2006
Ágnes Bogárdi-Mészöly, Zoltán Szitás, Tihamér Levendovszky, Hassan Charaf
Balanced Job Bounds Calculation for Approximating ASP.NET Performance Factors 
4th Slovakian-Hungarian Joint Symposium on Applied Machine Intelligence, 2006
Gábor Imre, Ágnes Bogárdi-Mészöly, Hassan Charaf
Measuring and Modelling the Effect of Application Server Tuning Parameters on Performance 
4th Slovakian-Hungarian Joint Symposium on Applied Machine Intelligence, 2006
Bertalan Forstner, Hassan Charaf
Model for Semantic Overlay Networks in Peer-to-Peer Systems 
4th WSEAS International Conference on Software engineering, Parelle and Distributed Systems), 2006
Tihamér Levendovszky, László Lengyel, Hassan Charaf
Termination Properties of Model Transformation Systems with Srtict Control Flow 
5th International Workshop on Graph Transformation and Visual Modeling Techniques, 2006
Gergely Mezei, László Lengyel, Tihamér Levendovszky, Hassan Charaf
Optimization Algorithms for OCL Compilers 
5th WSEAS Int.Conf. on Software Engineering, Parallel and Distributed Systems, SEPADS 2006, 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
A Visual Control Flow Language 
5th WSEAS Int.Conf. on Software Engineering, Parallel and Distributed Systems, SEPADS 2006, 2006
Gábor Imre, Hassan Charaf
Analyzing and modelling the effect of application server settings on web application performance 
7th International Conference on Technical Informatics, 2006
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Optimizing Constraint Weaving in Model Transformation with Structural Constraint Specification 
8th International Workshop on Aspect-Oriented Modeling, 2006
Ágnes Bogárdi-Mészöly, Tihamér Levendovszky, Hassan Charaf
Predicting the Performance of ASP.NET Web-Based Information Systems with Optimized Algorithms 
9th International Conference ISIM '06 (Information Systems Implementation and Modelling), 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
Constraint Validation-Driven Visual Model Transformation 
Automation and Applied Computer Science Workshop (AACS), 2006
Ágnes Bogárdi-Mészöly, Tihamér Levendovszky, Hassan Charaf
Using Queueing Model in Predicting the Response Time of ASP.NET Web Applications 
IASTED International Conference on Software Engineering, 2006
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
Visual Presentation Solution for Domain Specific Languages 
IASTED on SE, 2006
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
Extending an OCL Compiler for Metamodeling and Model Transformation Systems: Unifying the Twofold Functionality 
IEEE 10th International Conference on Intelligent Engineering Systems, 2006
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
A Domain-Specific Language for Visualizing Modeling Languages 
Information Systems Implementation and Modelling, 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Bertalan Forstner, Hassan Charaf
Metamodel-Based Model Transformation with Aspect-Oriented Constraints 
International Workshop on Graph and Model Transformation (GraMoT 2005), Electronic Notes in Theoretical Computer Science, 2006
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
A Model Transformation for Automated Concrete Syntax Definitions of Metamodeled Visual Languages 
International Workshop on Graph and Model Transformation (GraMoT), 2006
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Realizing QVT with Graph Rewriting-Based Model Transformation 
International Workshop on Graph and Model Transformation (GraMoT), 2006
Bertalan Forstner, Róbert Kereskényi, Hassan Charaf
Eliminating Clustering in the Propagation Tree of Semantic Peer-to-Peer Networks 
ISATED Conference on Paralell And Distributed Computing And Networks), 2006
Róbert Kereskényi, Bertalan Forstner, Hassan Charaf
Using Design Patterns in Mobile Communication Software Development 
ISATED Conference on Software Engineering, 2006
Bertalan Forstner, Imre Kelényi, Gergely Csúcs, Hassan Charaf
Hybrid Web- and Mobile-based E-learning with Rich Media Support 
Methods, Materials and Tools for Programming Education (MMT2006), 2006
Gergely Csúcs, Bertalan Forstner, Kálmán Marossy, Imre Kelényi, Hassan Charaf
An Advanced Simulator for Evaluating Performance of Peer-to-Peer Protocols 
Methods, Materials and Tools for Programming Education (MMT2006), 2006
Róbert Kereskényi, Bertalan Forstner, Hassan Charaf
Designing an Universal Communication Framework on Different Mobile Platforms 
microCAD 2006 International Scientific Conference), 2006
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
Customized Error Handling Suport for OCL Compilers 
MicroCAD 2006, 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
Control Flow Support in Model Transformation Frameworks: An Overview 
MicroCAD, 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
Weaving Constraint Aspects into Metamodel-Based Model Transformation Steps 
MicroCAD, 2006
Tamás Vajk, Hassan Charaf
The Use of Metamodeling Technique in Mobile User Interface Development 
Proc. of 7th International Conference On Technical Informatics, 2006
László Angyal, László Lengyel, Hassan Charaf
An Overview of the State-of-The-Art Reverse Engineering Techniques 
Proc. of 7th International Symposium of Hungarian Researchers on Computational Intelligence, 2006
Ágnes Bogárdi-Mészöly, Gábor Imre, Tihamér Levendovszky, Hassan Charaf
Handling Multiple Session Classes in ASP.NET Environment 
Proc. of MicroCAD 2006 International Scientific Conference, University of Miskolc, 2006
Gábor Imre, Ágnes Bogárdi-Mészöly, Hassan Charaf
Performance Modelling of a J2EE Web Application Considering Application Server Tuning Parameters 
Proc. of MicroCAD 2006 International Scientific Conference, University of Miskolc, 2006
Tamás Vajk, Hassan Charaf
A Tool Support for Creating Mobile User Interface 
Proc. of MicroCAD 2006 International Scientific Conference, University of Miskolc, 2006
Zsolt Berényi, Gábor Imre, Hassan Charaf
A novel load balance algorithm for loosely coupled distributed chess programs 
Proc. of MicroCAD 2006 International Scientific Conference, University of Miskolc, 2006
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
Automatized Concrete Syntax Definition for Domain Specific Languages 
Proc. of the 7th International Conference On Technical Informatics, 2006
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
Model-Based Development with Strictly Controlled Model Transformation 
The 2nd International Workshop on Model-Driven Enterprise Information Systems, MDEIS 2006, 2006
2005 
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
A Presentation Framework for Metamodeling Environments 
2005
Róbert Kereskényi, Bertalan Forstner, Hassan Charaf
Universal commnication component on Symbian Series60 platform 
6th International Symposium of Hungarian Researchers on Computational Intelligence, 2005
Bertalan Forstner, Hassan Charaf
Modelling Clustered Peer-to-Peer Networks 
IASTED International Conference on Communication Systems and Applications (CSA 2005), 2005
Bertalan Forstner, Gergely Csúcs, Kálmán Marossy, Hassan Charaf
An Advanced Simulator for Peer-to-Peer Protocol Analysis 
microCAD 2005 International Scientific Conference , 2005
Bertalan Forstner, Hassan Charaf
Semantic Profile-based Neighbor selection in Peer-to-Peer Networks 
microCAD 2005 International Scientific Conference , 2005
Péter Cserkúti, Hassan Charaf
Service-based Application Development 
microCAD 2005 International Scientific Conference , 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Weaving Aspect-Oriented Constraints into Metamodel-Based Model Transformation Steps 
10th Panhellenic Conference on Informatics (PCI'2005), 2005
Tihamér Levendovszky, László Lengyel, Hassan Charaf
Validating and Ordering Metamodel-Based Transformation Rules 
10th Panhellenic Conference on Informatics (PCI'2005), 2005
Ágnes Bogárdi-Mészöly, Zoltán Szitás, Tihamér Levendovszky, Hassan Charaf
Investigating Factors Influencing the Response Time in ASP.NET Web Applications 
10th Panhellenic Conference on Informatics, Advances in Informatics, Lecture Notes in Computer Science, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Supporting Continuous Evolution of Software Systems with Transformation Maintenance 
21th IEEE Internal Conference on Software Maintenance, 2005
Ágnes Bogárdi-Mészöly, Gábor Imre, Hassan Charaf
Monitoring the Performance of J2EE Web Applications 
5th Internal Conference of PhD Students, 2005
Gergely Mezei, László Lengyel, Tihamér Levendovszky, Hassan Charaf
A Metamodel-Based Technique for Attribute Transformation in Visual Model Processors 
5th Internal Conference of PhD Students, 2005
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
Traversing Processor for Metamodel Environments 
5th Internal Conference of PhD Students, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
A Case Study: Supporting Metamodel-Based Graph Transformation with Aspect-Oriented Constraints 
5th Internal Conference of PhD Students, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Aspect-Oriented Constraints in Metamodel-Based Model Transformation 
5th Internal Conference of PhD Students, 2005
Ágnes Bogárdi-Mészöly, Gábor Imre, Tihamér Levendovszky, Hassan Charaf
Investigating the Response Time in J2EE Web Applications 
5th International Conference of PhD Students, 2005
Ágnes Bogárdi-Mészöly, Tihamér Levendovszky, Hassan Charaf
Extending the Performance Models of Web Applications with Queueing Algorithm 
6th International Symposium of Hungarian Researchers on Computational Intelligence, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Aspect-Oriented Techniques in Metamodel-Based Model Transformation 
6th International Symposium of Hungarian Researchers on Computational Intelligence, 2005
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
Presentation Framework - an Environment for Editing Metamodels 
6th International Symposium of Hungarian Researchers, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Weaving Crosscutting Constraints in Metamodel-Based Transformation Rules 
8th International Conference on Information Systems Implementation and Modeling, ISIM '05, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Eliminating Crosscutting Constraints from Visual Model Transformation Rules 
ACM/IEEE 7th International Workshop on Aspect-Oriented Modeling, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Managing Crosscutting Constraints in Metamodel-Based Model Transformation Frameworks 
Carpathian Control Conference, ICCC'2005, 2005
Tihamér Levendovszky, László Lengyel, Gergely Mezei, Hassan Charaf
A Systematic Approach to Metamodeling Environments and Model Transformation Systems in VMTS 
Electronic Notes in Theoretical Computer Science, 2005
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
Control Flow Support in Metamodel-Based Model Transformation Frameworks 
EUROCON 2005 International Conference on ``Computer as a tool'', Proceedings of the IEEE, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Normalizing OCL Constraints in UML Class Diagram-Based Metamodels - AND/OR Clauses 
EUROCON 2005 International Conference on ``Computer as a tool'', Proceedings of the IEEE, 2005
Bertalan Forstner, László Lengyel, Imre Kelényi, Tihamér Levendovszky, Hassan Charaf
Supporting Rapid Application Development on Symbian Platform 
EUROCON 2005 International Conference on ''Computer as a tool'', Proceedings of the IEEE, 2005
Gergely Mezei, Tihamér Levendovszky, László Lengyel, Hassan Charaf
A Flexible Attribute Instantiation Technique for Visual Languages 
IASTED on SE, 2005
László Lengyel, Tihamér Levendovszky, Péter Kozma, Hassan Charaf
Compiling and Validating OCL Constraints in Metamodeling Environments and Visual Model Compilers 
IASTED on SE, 2005
Bertalan Forstner, Hassan Charaf
Adaptive Peer-to-peer Network Using Semantic Relations 
IEEE 3rd International Conference on Computational Cybernetics (ICCC 2005), 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Implementing an OCL Compiler for .NET 
In Proceedings of the 3rd International Conference on .NET Technologies, 2005
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
A Flexible Graphics Framework for Modeling Environments 
International Carpathian Control Conference 2005, 2005
Ágnes Bogárdi-Mészöly, Gábor Imre, Tihamér Levendovszky, Hassan Charaf
Determining the Distribution of the Response Time in J2EE Web Applications 
microCAD 2005 International Scientific Conference, 2005
Dénes Bisztray, Tihamér Levendovszky, Hassan Charaf
Defining Feature Modeling-Based Constraints 
Proc. of MicroCAD 2005 International Scientific Conference, University of Miskolc, 2005
Gábor Imre, Hassan Charaf
Using linear regression in predicting the response time of J2EE web applications 
Proc. of MicroCAD 2005 International Scientific Conference, University of Miskolc, 2005
Gergely Mezei, Tihamér Levendovszky, László Lengyel, Hassan Charaf
Multilevel Metamodeling - A Case Study 
Proc. of MicroCAD 2005 International Scientific Conference, University of Miskolc, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Graph Transformation and Constraint Validation-Driven User Interface Handler Code 
Proc. of MicroCAD 2005 International Scientific Conference, University of Miskolc, 2005
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Implementing a Metamodel-Based OCL-Compiler 
Proc. of MicroCAD 2005 International Scientific Conference, University of Miskolc, 2005
Renáta Iváncsy, Tihamér Levendovszky, Hassan Charaf
.NET Facilities in Data Mining Applications 
Proc. of MicroCAD 2005 International Scientific Conference, University of Miskolc, 2005
Tihamér Levendovszky, László Lengyel, Hassan Charaf
Creating a Homomorphic Instantiation Mapping Between Metamodels and the Model Parts 
Proc. of MicroCAD 2005 International Scientific Conference, University of Miskolc, 2005
Bertalan Forstner, Gergely Csúcs, Kálmán Marossy, Hassan Charaf
Evaluating Performance of Peer-To-Peer Protocols with an Advanced Simulator 
Proc. of Parallel And Distributed Computing And Networks, 2005
2004 
P. Schönhofen, Hassan Charaf
Document Distillation through Word Context Analysis 
microCAD 2004 International Scientific Conference , 2004
Bertalan Forstner, Hassan Charaf
Semantic Peer-to-peer Information retrieval 
microCAD 2004 International Scientific Conference , 2004
Gergely Csúcs, Hassan Charaf
Peer-to-peer Optimalization-An experiment with Gnutella Protocol 
microCAD 2004 International Scientific Conference , 2004
Bertalan Forstner, Hassan Charaf
General-purpose Module-based Web Development Environment 
microCAD 2005 International Scientific Conference , 2004
Sándor Juhász, Ferenc Kovács, Hassan Charaf
Asynchronous Communication Model for Cluster Systems 
22nd IASTED International Conference on Parallel and Distributed Computer Networks, 2004
Bertalan Forstner, Hassan Charaf
A rapid webapplication development framework 
22nd IASTED International Conference On Parelell and Distributed Computer Networks , 2004
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Constraint Handling in Feature Models 
5th International Symposium of Hungarian Researchers on Computational Intelligence, 2004
Sándor Juhász, Hassan Charaf
Exploiting Fast Ethernet Performans in Multiplaform Cluster System 
ACM Symposium on Applied Computing SAC’04 , 2004
Sándor Juhász, Hassan Charaf
Exploiting Fast Ethernet Performance in Multiplatform Cluster Environment 
ACM Symposium on Applied Computing, SAC'04, 2004
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Supporting Round-Trip Engineering in Modeling Environments with the Application of Meta-Modeling Techniques 
IASTED on SE, 2004
Tihamér Levendovszky, László Lengyel, Hassan Charaf
Software Composition with a Multipurpose Modeling and Model Transformation Framework 
IASTED on SE, 2004
Kálmán Marossy, Hassan Charaf
Peer-to-peer System in Mobile Environment 
microCAD 2004 International Scientific Conference, 2004
Ágnes Bogárdi-Mészöly, Hassan Charaf
Comparison of Portal Building Techniques 
microCAD 2004 International Scientific Conference, 2004
Gábor Imre, Hassan Charaf
Performance analysis and prediction of J2EE web applications 
Proc. of MicroCAD 2004 International Scientific Conference, University of Miskolc, 2004
László Angyal, Tihamér Levendovszky, Hassan Charaf
Software Design with Generative Programming and Traditional Object-Oriented Techniques 
Proc. of MicroCAD 2004 International Scientific Conference, University of Miskolc, 2004
László Lengyel, Tihamér Levendovszky, Hassan Charaf
Metamodel-Based Software Model Storage and Transformation System 
Proc. of MicroCAD 2004 International Scientific Conference, University of Miskolc, 2004
Tihamér Levendovszky, Hassan Charaf
Parametrized Multiplicity Constraints in UML Like Metamodels 
Proc. of MicroCAD 2004 International Scientific Conference, University of Miskolc, 2004
2003 
Sándor Juhász, Hassan Charaf
Building Clusters on Modern Desktop Operating Systems 
21st IASTED International Conference on Applied Informatics (section: Parallel and Distributed Computer Networks), 2003
2002 
Sándor Juhász, Hassan Charaf
Execution Time Prediction for Parallel Data Processing Tasks 
10th Euromicro Workshop on Parallel, Distributed and Network based Processing, 2002
Sándor Juhász, Hassan Charaf
Execution Time Prediction for Paralell Data Processing Tasks 
Euromico Workshop on Paralell, Distributd and Network-based Processing, 2002
J. Sallai, Hassan Charaf
Integrating E-Commerce Services in a GroupeWare Infrastructure 
INES 2002 Conference, 2002
Tihamér Levendovszky, G Karsai, M Maroti, A Ledeczi, Hassan Charaf
Model reuse with metamodel-based transformations 
Lecture Notes in Computer Science - ICSR7, 2002
Gergely Csúcs, Hassan Charaf
Komponens alapúfejlesztés EJB használatával 
Networkshop 2002, 2002
Gergely. Csúcs, Kálmán Marossy, Hassan Charaf
Heterogén rendszerek együttműködése SOAP segítségével 
Networkshop 2002, 2002
István Albert, György Balássy, Szilárd Péteri, Tamás Rajacsics, Hassan Charaf
Kód-eredet alapú biztonság a .NET platformon 
Networkshop 2002, 2002
J. Sallai, Hassan Charaf
XML szolgáltatások fejlesztése objektumorientált és funkcionális paradigmák alkalmazásával  
Networkshop 2002, 2002
Kálmán Marossy, Hassan Charaf
Komponens alapúprogramozás COM+ és .NET környezetben 
Networkshop 2002, 2002
Szilárd Péteri, István Albert, Tamás Rajacsics, György Balássy, Hassan Charaf
Online multivendor katalógus adatmenedzselése XML Web szolgáltatásokkal 
Networkshop 2002, 2002
Tamás Rajacsics, István Albert, György Balássy, Szilárd Péteri, Hassan Charaf
Tesztelés segítőrendszer megvalósítása ASP.NET-tel 
Networkshop 2002, 2002
György Balássy, Hassan Charaf, István Albert, Tamás Rajacsics, Szilárd Péteri
Dokumentum kezelés és portálépítés Microsoft platformon 
Networkshop 2002, 2002
Péter Farkas, Hassan Charaf
XML Web szolgáltatások készítése .NET platformon 
NETWORKSHOP 2002, 2002
2001 
Sándor Juhász, Hassan Charaf
Virtuális számítógép architektúra hálózati PC-kre 
Networkshop 2001 konferencia, 2001
Tihamér Levendovszky, Hassan Charaf
Komponensalapú, elosztott információs rendszerek UML nyelvű tervezési módszertana 
NETWORKSHOP 2001, 2001
2000 
Ferenc Kovács, K. Monostori, Hassan Charaf, Ruth Bars, Róbert Tuschák
Utilising Internet In Teaching Control Theory 
2000
Ruth Bars, R. Haber, O. Gáspár, Z. Cziprián, Hassan Charaf
A Phd Course On Predictive Control 
IFAC Symp. On Advances in Control Education , 2000
A. Zolnay, A. Lassó, Hassan Charaf, István Vajk
Configurable remote, platform independent control system 
IFAC/IEEE Symposium on Advances in Control Education, ACE2000, 2000
1999 
György Szitnyai, Ferenc Kovács, Hassan Charaf, István Vajk
Object Web kialakítása DCOM és COBRA alapon 
NETWORKSHOP’99 Konferencia, 1999
T. Nagy, Zs. Bárányos, Hassan Charaf, Ferenc Kovács, György Szitnyai
Az Internet a műszaki felsőoktatásban 
NETWORKSHOP’99 Konferencia, 1999
Hassan Charaf, Róbert Tuschák, István Vajk, Ruth Bars, Jenő Hetthéssy, Ferenc Kovács, György Szitnyai
A New Web/Matlab Based System in Control Education 
Proc. of 14th IFAC World Congress, 1999
Hassan Charaf, Róbert Tuschák, István Vajk, Ruth Bars, J. Hethéssy, Ferenc Kovács, G. Szitnyai
A new Web/Matlab Based System In Control Education 
Proceedings of 14th IFAC World Congress, 1999
Sándor Juhász, László Zsolt Farkas, István Vajk, Hassan Charaf
Visual Graphical Editor for Programming and Simulation of PLC Systems 
Symposium on Intelligent Systems in Control and Measurement (INTCOM'99), 1999
Ferenc Kovács, Gy. Szitnyai, István Vajk, Hassan Charaf
Internet based control theory education 
Symposium on Intelligent Systems in Control and Measurement, 1999
1998 
György Szitnyai, Ferenc Kovács, Hassan Charaf, Istán Vajk
New Aspect in Process Control Education 
3rd International Conference on Technical Informatics, CONTI’98, 1998
L. Opoczky, M. Hilger, Jenő Hetthéssy, Hassan Charaf
Application of Neural Networks to Model the Grinding Technological and Quality Relations of Multi-component Cements 
9th Symposium on Communition 98, Albi-France, 1998
István Vajk, Hassan Charaf, Jenő Hetthéssy
Feedback Linearization Using Approximate Model 
IFAC Workshop on Adaptive Control and Signal Processing, 1998
Róbert Tuschák, Hassan Charaf, István Vajk, Ruth Bars, Jenő Hetthéssy, Ferenc Kovács, G. Szitnyai
Modern ways of control education 
Int. Conference on Systems, Signals, Controls, Computers (SSCC'98), 1998
A. Zolnay, Zoltán Benedek, L. Béres, Hassan Charaf, István Vajk
New Aspects of Control Systems 
INTCOM'98 Symposium on Intelligent Systems In Control and Measurement, 1998
István Vajk, Hassan Charaf, Jenő Hetthéssy
Applications of Neural Networks For Feedback Linearization 
INTCOM'98 Symposium on Intelligent Systems In Control and Measurement, 1998
Gábor Bányász, G. Lucz, Hassan Charaf, István Vajk
New Horizons in Network Management 
International Conference on: Circuits, Systems and Computers IMACS-CSC'98, 1998
A. Zolnay, István Vajk, Hassan Charaf
Platformfüggetlen, elosztott szabályozástechnikai rendszer 
Mérés-Automatizálás'98 Konferencia, 1998
Ferenc Kovács, G. Szitnyai, Hassan Charaf, István Vajk
Interaktív Szabályozástechnikai Rendszer 
Mérés-Automatizálás'98 Konferencia, 1998
Ferenc Kovács, György Szitnyai, Hassan Charaf
Interaktív Szabályozástechnikai Oktató Rendszer 
Mérés-Automatizálás'98 Konferencia, 1998
István Vajk, Jenő Hetthéssy, Hassan Charaf
Sensitivity Reduction Of Dynamic NN Approximations 
NC'98. International ICSC/IFAC Symposium on Neural Computation, 1998
István Vajk, Jenő Hetthéssy, Hassan Charaf
Reduction of modelling error in nonlinear dynamic systems 
Nonlinear Control Systems Design Symposium, NOLCOS'98 IFAC Conference, 1998
György Szitnyai, Ferenc Kovács, Hassan Charaf, István Vajk
New Aspects in Process Control Education 
Proc. of 3rd International Conference on Technical Informatics, 1998
Ferenc Kovács, György Szitnyai, Krisztián Monostori, Hassan Charaf, István Vajk
Teaching Control Theory Interactively 
Proc. of IFIP World Congress (IFIP 98), 1998
Robert Tuschák, Hassan Charaf, István Vajk, Ruth Bars, Jenő Hetthéssy, Ferenc Kovacs, György Szitnyai
Modern Ways of Control Education 
Proc. of Internation Conference in Systems, Signals, Controls and Computers, 1998
A. Zolnay, Zoltán Benedek, L. Béres, Hassan Charaf, István Vajk
Modern Software Aspects of Control Systems 
Third International Conference On Technical Informatics, CONTI'98 , 1998
Ferenc Kovács, G. Szitnyai, K. Monostori, Hassan Charaf, István Vajk
Teaching Control Theory Interactively 
World Congress IFIP'98, 1998
1996 
Hassan Charaf, István Vajk
Linearization of nonlinear systems by neural networks 
7th International Power Electronics and Motion Control Conference. (PEMC'96), 1996
L. Opoczky, M. Hilger, Jenő Hetthéssy, Hassan Charaf
Mészkőoldalékos Cement őrlési folyamatának modellezése neurális hálózatok felhasználásával 
Cementipari Tudományos Konferencia, 1996
1995 
Hassan Charaf, István Vajk
Identification and Control of Systems with Nonsmooth Nonlinearities Using Neural Networks 
AMSE Symposium on Systems Analysis, Control and Design SYS'95, 1995
Hassan Charaf, István Vajk
System Identification by Neural Networks 
Automation'95 Conference (Automatizálás'95 Konferencia), 1995
Hassan Charaf, Zsolt Rekvényi
Cementtöltési Folyamat Automatizálása 
MATE Konferencia Automatzálás’95, 1995
Hassan Charaf, István Vajk
Neural networks can be trained faster 
Preprints of Adaptive systems in control and signal processing. 5th IFAC Symposium, (IFAC ACASP'95), 1995
Ferenc Kovács, György Szitnyai, Hassan Charaf
Interaktív Oktató Rendszer 
Objektumorientált, komponens alapú technológiák a vállalati informatikában, III. Országos Objektum-orientált Konferencia YEAR = 1998,
Technical reports
2006 
László Lengyel, Tihamér Levendovszky, Gergely Mezei, Hassan Charaf
Separating Constraints in Validated Model Transformations 
2006
Gergely Mezei, Tihamér Levendovszky, Hassan Charaf
Restrictions for OCL constraint optimization algorithms 
Technische Universitat Dresden, 2006

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