Ahto Kalja
Ahto Kalja
Professor of TUT
Verified email at - Homepage
Cited by
Cited by
Storing OWL ontologies in SQL relational databases
I Astrova, N Korda, A Kalja
International Journal of Electrical, Computer and Systems Engineering 1 (4 …, 2007
Rule-based transformation of SQL relational databases to OWL ontologies
I Astrova, N Korda, A Kalja
Proceedings of the 2nd International Conference on Metadata & Semantics …, 2007
eGovernment in Estonia: best practices
A Kalja, A Reitsakas, N Saard
A Unifying Discipline for Melting the Boundaries Technology Management:, 500-506, 2005
Applying User Profile Ontology for Mining Web Site Adaptation Recommendations.
T Robal, A Kalja
ADBIS Research Communications 325, 2007
Automatic transformation of OWL ontologies to SQL relational databases
I Astrova, A Kalja, N Korda
IADIS European Conf. Data Mining (MCCSIS), 5-7, 2007
Mapping of SQL relational schemata to OWL ontologies
I Astrova, A Kalja
Proceedings of the 6th WSEAS International Conference on Applied Informatics …, 2006
Storing owl ontologies in sql3 object-relational databases
I Astrova, A Kalja
Proceedings of the 8th conference on Applied informatics and communications …, 2008
Making web users’ domain models explicit by applying ontologies
T Robal, HM Haav, A Kalja
Advances in Conceptual Modeling–Foundations and Applications: ER 2007 …, 2007
Applying e-environments in teaching the basics of digital logic
T Robal, A Kalja
2007 IEEE International Conference on Microelectronic Systems Education (MSE …, 2007
Towards the semantic web: Extracting owl ontologies from sql relational schemata
I Astrova, A Kalja
IADIS International Conference WWW/Internet 2006, 62-66, 2006
New generations of Estonian eGovernment components
A Kalja, T Robal, U Vallner
2015 Portland International Conference on Management of Engineering and …, 2015
The X-road project
A Kalja
A project to modernize Estonia’s national databases. Baltic IT&T review 24 …, 2002
Ontology design for automatic evaluation of web user interface usability
T Robal, J Marenkov, A Kalja
2017 Portland International Conference on Management of Engineering and …, 2017
Environment testing enabled software–a step towards execution context awareness
K Rauhvargers, J Bicevskis
Databases and Information Systems V, 169-179, 2009
Analysing the web log to determine the efficiency of web systems
T Robal, A Kalja, J Põld
Proc. of the 7th International Baltic Conference on Databases and …, 2006
Modernization of the e-government in Estonia
A Kalja, J Põld, T Robal, U Vallner
2011 Proceedings of PICMET'11: Technology Management in the Energy Smart …, 2011
Automatic Transformation of SQL Relational Databases to OWL Ontologies.
I Astrova, A Kalja
WEBIST (2), 131-136, 2008
eGovernment Services: How to Develop Them, How to Manage Them?
A Kalja, K Kindel, R Kivi, T Robal
PICMET'07-2007 Portland International Conference on Management of …, 2007
Public e-service projects in Estonia
A Kalja, U Vallner
Proceedings of the Baltic Conference, BalticDB&IS 2002-Volume 2, 143-154, 2002
Estonian information technology policy in government, industry and research, case study
H Jaakkola, A Kalja
Technology Management: Strategies & Applications 3, 299-307, 1997
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