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Research

 
 

The Department has traditionally been strong for research in Statistics and Computer Science. In the area of Statistics, the department particularly carries out research in Statistical Estimation, Statistical modeling, Multivariate methods, Circular Statistics, Spatial Statistics, Data Mining and Bioinformatics. Computer Science research includes Database Systems, Software Engineering, Distributed Computing, Biomedical engineering, Image Processing and Analysis, Service Oriented Architecture (SOA), Semantic Web / Web Services and Semantic Business Processes, Context-aware Service Computing , Mobile and Ubiquitous Computing, Aspect Oriented Computing, Cloud Computing, and Information Technology Security.

Research Publications of:

 
 
Research Publications of Prof. P. Wijekoon
  1. Laheetharan A. and P. Wijekoon (2009): Mean square error comparison among variance estimators with known coefficient of variation, . Statistical papers, Springer, Online first, DOI : 10.1007/s00362-009-0221-0.
  2. Laheetharan A. and P. Wijekoon (2008): Improved estimation of the population parameters when some additional information is available. Statistical papers, Springer, Online first, DOI : 10.1007/s00362-008-0185-5
  3. Hubert M.H. and P. Wijekoon (2006): Improvement of the Liu estimator in Linear Regression model, Statistical papers, 47, 471-479
  4. E Wencheko and P. Wijekoon (2005): Improved estimation of the mean in one-parameter exponential families with known coefficient of variation. Statistical papers, Springer, Vol 4-6, 101-116
  5. Hubert M.H. and P. Wijekoon (2004): Superiority of the stochastic restricted Liu estimator under misspecification, Statistica Anno., LXIV, n.1, 2004 pp. 153-162 .
  6. Dube M., Srivastava V.K., Toutenburg H. and P.Wijekoon(1991) : Stein-Rule estimator under inclusion of superfluous variables in Linear Regression Models. Communication in Statistics 20, 2009-2023
  7. Wijekoon P. and G.Trenkler (1989) : Mean square error matrix superiority of estimator under linear restrictions and misspecification. Economics Letters 30, 141-149.
Research Publications of Prof. S. R. Kodituwakku
  1. Kodituwakku S. R. and Rambukwella A.I, A n enhanced algorithm for offline connected handwritten character segmentation , International Journal of Latest trends in Computing (IJLTC), 2011.
  2. S. S elvarajahand S. R. Kodithuwakku , Analysis andComparison of Texture Features for Image Retrieval , International Journal of Latest trends in Computing (IJLTC), 2011.
  3. S.R. Kodituwakku and U. S. Amarasinghe, Comparison of Lossless Data Compression Algorithms for Text Data , Indian Journal of Computer Science and Engineering (IJCSE), 2011.
  4. S. R. Kodituwakku and H.R.O.E. Dayarathne, Statistical Approach to Optimize Master Worker Allocation in Grid Computing , Indian Journal of Computer Science and Engineering (IJCSE), 2010.
  5. S.R. Kodituwakku , The Administrator Object Pattern for Role-Based Access Control , International Journal of Engineering Science and Technology (IJEST), 2010.
  6. S. R. Kodithuwakku and S. Selvarajah, Comparison of Color Features for Image Retrieval , Indian Journal of Computer Science and Engineering (IJCSE), 2010.
  7. S.R. Kodituwakku , Design and Implementation of Role Base Access Control for Network Resources , International Journal of Engineering Science and Technology (IJEST), 2010.
  8. S.R. Kodituwakku and Nilanthi P. S., A Fuzzy Approach for Off-Line Handwritten Sinhala Character Recognition , International Journal of Engineering Science and Technology (IJEST), 2010.
  9. S. R. Kodituwakku and Pathum Chamikara, CUBRAS: Design and implementation of the course unit based results analysis system , Ceylon Journal of Science (Physical Sciences), 2009.
  10. Saluka R.K and Bertok P,  Mathematical Approach to Object Oriented Design Patterns, NSF Journal, 2008.
  11. S. R. Kodithuwakku , Mathematical Structures in Pattern Oganizations , Journal of Science of the University of Kelaniya, 2008.
  12. G. A. Samaraweera and Saluka R.K ., Metamodel of design pattern catalouge: application to automated code generation , Ceylon Journal of Science (Physical Sciences), 2007.
  13. D. M. Rasanjalee and Saluka R.K ., Object-Orienetd software quality matrics , Ceylon Journal of Science (Physical Sciences), 2007.
  14. U.H.G.R.D Nawarathna and Sauka. R. K ., A Fuzzy Role Based Access Control Model for Database Security, Ceylon Journal of Science (Physical Sciences), 2007.
  15. Bandara K. Y., Gunathilaka M. P., Saluka R.K , Semi-Intelligent SQL framework for relational database management systems , Ceylon Journal of Science (Physical Sciences), 2005
  16. Kodituwakku S. R . and Kanagasabapathy P., X2ORTRANS: A schema driven mapping for is-a relationship ,International Journal of Latest trends in Computing (IJLTC), 2011.
  17. Saluka R. Kodituwakku and Peter Bertok, Pattern Categories: A Mathematical Approach for Organizing Design Patterns , Proceedings of the KoalaPLoP2002.
  18. Saluka R.K , Bertok P, and Liping Z., APLRAC: A Pattern Language for Designing and Implementing Role-Based Access Control , In the proceedings of the 6 th European Conference on Pattern Languages of Programs, 2001.
  19. S. R. Kodithuwakku and M.I.M. Fazeen, An Offline Fuzzy Based Approach for Iris Recognition with Enhanced Feature Detection , Proceedings of the Interna tional Joint Conferences on Computer, Information, and Systems Sciences, and Engineering, 2008.
  20. Qi Yulu and Kodituwakku, S.R .; Finite Automation Cryptosystem, In the proceedings of the International Conference on Communication Technology, 1996.
  21. Bertok P. and Saluka R.K , Data Access Control In Virtual Organisations – Role-Based Access Control Patterns,   IFIP Conference Proceedings, 2001.
  22. Saluka R.K , Bertok P, and Liping Z., Pattern Language for Designing and Implementing Role-Based Access Control , In the proceedings of the KoalaPLoP2001, 2001.
  23. S. Abeysundara, B. Giritharan and S. R. Kodituwakku , A Genetic Algorithm Approach to Solve the Shortest Path Problem for Road Maps, In the proceedings of the International Conference on Information and Automation, 2005.
  24. M. A. P. Neshadha Perera and S. R. Kodituwakku , Music Chord Recognition Using Artificial Neural Networks, In the proceedings of the International Conference on Information and Automation, 2005.
  25. Gunathunga J.D.S.S., Umagiliya U. and Saluka R.K ., Realization of XML as an essential supporting tool for the Object Oriented System Design , proceedings of the International Conference on Information and Automation, 2007.
  26. Kumara J. and Saluka R.K ., Modeling an Inteligua for language translation , proceedings of the International Conference on Information and Automation, 2007.
  27. Saluka R. Kodituwakku and Peter Bertok, Towards a Formal Organization of Software Patterns , in the proceeding of the CSPRSC2000, 2000.
  28. H. R. O. E. Dhayarathneand S. R. Kodituwakku , Toward the Optimization of Master Worker Approach in Grid Computing , in the proceedings of the 6 th SLIIT research Symposium 2011.
Research Publications of Dr. Roshan D. Yapa
  1. Roshan Dharshana Yapa, Koichi Harada, Breast Skin-Line Estimation and Breast Segmentation in Mammograms using Fast-Marching Method, International Journal of Biomedical Sciences, Vol. 3, No. 1, pp 54-62, 2008, ISSN: 2070-3848.
  2. Roshan Dharshana Yapa, Koichi Harada, Connected Component Algorithms for Greyscale Images and Evaluation of Performance using Digital Mammograms, International Journal of Computer Science and Computer Security, Vol. 8, No. 6, pp 33-41, 2008, ISSN: 1738-7906.
  3. Roshan Dharshana Yapa, Koichi Harada, A Connected Component Labelling Algorithm For Greyscale Mammography Image Processing as a Pre-Processing Tool. Machine Graphics & Vision, Vol. 16, No. 3/4, pp 305-327, 2007, ISSN: 1230-0535.
  4. Roshan Dharshana Yapa, Koichi Harada, Breast Skin-Line Estimation in Mammograms Using an Enhanced Fast-Marching and Mathematical Morphological Techniques. 32 nd AAPR/OAGM Workshop, pp 223-234, Linz (Austria), May, 2008, ISBN 978-3-85403-232-8.
  5. Roshan Dharshana Yapa, Koichi Harada, Application of Fast-Marching Method on Mammograms for Breast Skin-Line Estimation, 2 nd IEEE International Conference on Industrial and Information Systems, Sri Lanka, pp 59-62, August, 2007. (IEEE Xplore, DOI: 10.1109/ICIINFS.2007.4579148)
Research Publications of Dr. Amalka J. Pinidiyaarachchi
  1. A.Pinidiyaarachchi and N. Ratnatunga, Colour Spaces for Segmentation of Cytological Samples, in the proceedings of CYTO 2010 - XXV Congress of the International Society for Advancement of Cytometry, Seattle, Washington. LB5/P343.
  2. Amin Allalou, Amalka Pinidiyaarachchi, Carolina Wählby. Robust Signal Detection in 3D Fluorescence Microscopy. Cytometry A, 77A(1) 86-96, 2009.
  3. Amalka Pinidiyaarachchi, Agata Zieba, Amin Allalou, Katerina Pardali, Carolina Wählby. A Detailed Analysis of 3D Subcellular Signal Localization Cytometry A, 75A (4); 319-328, 2009.
Research Publications of Dr. Kosala Y. Bandara
  1. Claus Pahl, Veronica Gacitua-Deca, MingXue Wang and Kosala Yapa Bandara. Ontology-based Compostion and Matching for Dynamic Service Coordination. The 5th International Workshop on Ontology, Models, Conceptualization and Epistemology in Social, Artificial and Natural Systems, ONTOSE 2011, Co-located with 23rd International Conference on Advanced Information System Engineering, Springer, June 2011, London, England.
  2. Claus Pahl, Veronica Gacitua-Deca, MingXue Wang and Kosala Yapa Bandara. A Coordination Space Architecture for Service Collaboration and Cooperation. The 9th International Workshop on Systems/Software Architectures, IWSSA'11, Co-located with 23rd International Conference on Advanced Information System Engineering, Springer, June 2011, London, England.
  3. Claus Pahl, Kosala Yapa Bandara and MingXue Wang. Context Constraint Integration and Validation in Dynamic Web Service Compositions. M. Sheng, J. Yu, and S. Dustdar (Eds.) Enabling Context-Aware Web Services: Methods, Architectures, and Technologies. Chapman and Hall/CRC Press.
  4. 2010. (in press) , Australia. MingXue Wang, Kosala Yapa Bandara and Claus Pahl. Process as a Service - Distributed Multi-tenant Policy-based Process Runtime Governance. IEEE International Conference on Services Computing, SCC 2010, July 2010, Miami, Florida, USA. MingXue Wang, Kosala Yapa Bandara and Claus Pahl. Distributed Aspect-Oriented Service Composition for business compliance governance with public service processes.
    The Fifth International Conference on Internet and Web Applications and Services, ICIW 2010, May 2010,Barcelona, Spain.
  5. Kosala Yapa Bandara, MingXue Wang and Claus Pahl. Context Modeling and Constraints Binding in Web Service Business Processes, Workshop on Context-Aware Software Technology and Applications, CASTA 2009, Co-located with ESEC/FSE 2009, ACM Press, August 2009, Amsterdam, The Netherlands.
  6. MingXue Wang, Kosala Yapa Bandara and Claus Pahl. Integrated Constraint Violation Handling for Dynamic Service Composition, IEEE International Conference on Services Computing SCC 2009, IEEE. Sept. 2009,Bangalore,India.
  7. MingXue Wang, Kosala Yapa Bandara and Claus Pahl, Constraint Integration and Violation Handling for BPEL Processes, The Fourth International Conference on Internet and Web Applications and Services ICIW 2009, IEEE May, 2009, Venice, Italy.
  8. Kosala Yapa Bandara, MingXue Wang and Claus Pahl, Dynamic Integration of Context Model Constraints in Web Service Processes, International Software Engineering Conference SE’2009, IASTED, Feb 2009, Innsbruck, Austria.

 
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