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Works (43)

A study on user click behaviour for WIS user interface improvements

Frontiers in Artificial Intelligence and Applications
2014 | Book
EID:

2-s2.0-84911462525

Contributors: Marenkov, J.; Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier
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Expectations of software development practitioners for non-technical clients

Frontiers in Artificial Intelligence and Applications
2014 | Book
EID:

2-s2.0-84911494323

Contributors: Ojastu, D.; Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Preface

Frontiers in Artificial Intelligence and Applications
2014 | Book
EID:

2-s2.0-84911498942

Contributors: Haav, H.-M.; Kalja, A.; Robal, T.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

A model-based software technology proposal

MODELSWARD 2013 - Proceedings of the 1st International Conference on Model-Driven Engineering and Software Development
2013 | Conference paper
EID:

2-s2.0-84878031157

Contributors: Kotkas, V.; Penjam, J.; Kalja, A.; Tyugu, E.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

A semantic method of automatic composition of E-government services

Frontiers in Artificial Intelligence and Applications
2013 | Book
EID:

2-s2.0-84873589293

Contributors: Maigre, R.; Grigorenko, P.; Haav, H.-M.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Applying user domain model to improve web recommendations

Frontiers in Artificial Intelligence and Applications
2013 | Book
EID:

2-s2.0-84873588757

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Complementing ICT studies with learning objects on domain ontologies

Proceedings of the 24th International Conference on European Association for Education in Electrical and Information Engineering, EAEEIE 2013
2013 | Conference paper
EID:

2-s2.0-84883268652

Contributors: Robal, T.; Kruus, H.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Estonian eGovernment services: Lesson learned

2013 Proceedings of PICMET 2013: Technology Management in the IT-Driven Services
2013 | Conference paper
EID:

2-s2.0-84890816815

Contributors: Kalja, A.; Pold, J.; Robal, T.; Vallner, U.; Viies, V.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Managing knowledge in web portals for improved customer loyalty and satisfaction

2013 Proceedings of PICMET 2013: Technology Management in the IT-Driven Services
2013 | Conference paper
EID:

2-s2.0-84890833848

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

On proving the concept of an ontology aided software refactoring tool

Frontiers in Artificial Intelligence and Applications
2013 | Book
EID:

2-s2.0-84873584579

Contributors: Põld, J.; Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Asynchronous messaging for OSGi

Journal of Computing and Information Technology
2012 | Journal article
EID:

2-s2.0-84878915646

Contributors: Koschel, A.; Astrova, I.; Schaaf, M.; Ahlers, V.; Grivas, S.G.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Asynchronous messaging for OSGi

Proceedings of the International Conference on Information Technology Interfaces, ITI
2012 | Conference paper
EID:

2-s2.0-84868156725

Contributors: Koschel, A.; Astrova, I.; Schaaf, M.; Ahlers, V.; Grivas, S.G.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Learning from users for a better and personalized web experience

2012 Proceedings of Portland International Center for Management of Engineering and Technology: Technology Management for Emerging Technologies, PICMET'12
2012 | Conference paper
EID:

2-s2.0-84867943760

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Using software with ai elements for conceptual design of machine elements

Proceedings of the International Conference of DAAAM Baltic "Industrial Engineering"
2012 | Conference paper
EID:

2-s2.0-84920509588

Contributors: Tiidemann, M.; Kalja, A.; Tiidemann, T.; Tyugu, E.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

An ontology-based intelligent learning object for teaching the basics of digital logic

2011 IEEE International Conference on Microelectronic Systems Education, MSE 2011
2011 | Conference paper
EID:

2-s2.0-79961150994

Contributors: Robal, T.; Kann, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Integrating asynchronous communication into the OSGI service platform

WEBIST 2011 - Proceedings of the 7th International Conference on Web Information Systems and Technologies
2011 | Conference paper
EID:

2-s2.0-80052578608

Contributors: Schaaf, M.; Ahlers, V.; Koschel, A.; Astrova, I.; Kalja, A.; Bosschaert, D.; Roelofsen, R.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Modernization of the e-government in Estonia

PICMET: Portland International Center for Management of Engineering and Technology, Proceedings
2011 | Conference paper
EID:

2-s2.0-80053347732

Contributors: Kalja, A.; Põld, J.; Robal, T.; Vallner, U.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

A Model for Users' Action Prediction Based on Locality Profiles

Information Systems Development: Challenges in Practice, Theory and Education, Vols 1and 2
2009 | Journal article
WOSUID:

WOS:000263369000014

Contributors: Robal, Tarmo; Kalja, Ahto; Barry, C; Conboy, K; Lang, M; Wojtkowski, G; Wojtkowski, W
Source: Self-asserted source
Ahto Kalja via ResearcherID

Conceptual web users' actions prediction for ontology-based browsing recommendations

Information Systems Development: Towards a Service Provision Society
2009 | Conference paper
EID:

2-s2.0-80052112559

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Creating interactive learning objects with web services

20th EAEEIE Annual Conference, EAEEIE 2009 - Formal Proceedings
2009 | Conference paper
EID:

2-s2.0-72849121514

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Ensuring large-scale semantic interoperability: The estonian public sector's case study

Frontiers in Artificial Intelligence and Applications
2009 | Book
EID:

2-s2.0-72749096066

Contributors: Haav, H.-M.; Kalja, A.; Küngas, P.; Luts, M.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Frontiers in Artificial Intelligence and Applications: Preface

Frontiers in Artificial Intelligence and Applications
2009 | Book
EID:

2-s2.0-72749127122

Contributors: Haav, H.-M.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Interactive hands-on tools as learning objects on web services

2009 IEEE International Conference on Microelectronic Systems Education, MSE 2009
2009 | Conference paper
EID:

2-s2.0-70449726749

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Towards information society: Estonian case study

PICMET: Portland International Center for Management of Engineering and Technology, Proceedings
2009 | Conference paper
EID:

2-s2.0-70450196242

Contributors: Kalja, A.; Robal, T.; Vallner, U.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Web systems evaluation on users' behaviour modelling

Frontiers in Artificial Intelligence and Applications
2009 | Book
EID:

2-s2.0-72749118100

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

A five step refactoring process: Improving software design properly

Databases and Information Systems
2008 | Journal article
WOSUID:

WOS:000258025100004

Contributors: Pold, Janari; Kalja, Ahto; Robal, Tarmo; Haav, HM; Kalja, A
Source: Self-asserted source
Ahto Kalja via ResearcherID

Automatic transformation of SQL relational databases to OWL ontologies

WEBIST 2008 - 4th International Conference on Web Information Systems and Technologies, Proceedings
2008 | Conference paper
EID:

2-s2.0-58049169276

Contributors: Astrova, I.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Enabling students contemporary ways of learning using e-supported courses

19th EAEEIE (European Association for Education in Electrical and Information Engineering) Annual Conference - Formal Proceedings
2008 | Conference paper
EID:

2-s2.0-53149135095

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Evaluations for improving web systems on the basis of users behaviour modelling

Databases and Information Systems
2008 | Journal article
WOSUID:

WOS:000258025100019

Contributors: Robal, Tarmo; Kalja, Ahto; Haav, HM; Kalja, A
Source: Self-asserted source
Ahto Kalja via ResearcherID

Making use of personalized web services in the study process

BEC 2008 - 2008 International Biennial Baltic Electronics Conference, Proceedings of the 11th Biennial Baltic Electronics Conference
2008 | Conference paper
EID:

2-s2.0-57849091382

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Storing OWL Ontologies in SQL3 Object-Relational Databases

Proceedings of the 8th Wseas International Conference on Applied Informatics and Communications, Pts I and Ii
2008 | Journal article
WOSUID:

WOS:000265456100015

Contributors: Astrova, Irina; Kalja, Ahto; Mastorakis, NE; Demiralp, M; Mladenov, V; Bojkovic, Z
Source: Self-asserted source
Ahto Kalja via ResearcherID

The Estonian semantic interoperability initiative in public sector

Databases and Information Systems
2008 | Journal article
WOSUID:

WOS:000258025100009

Contributors: Luts, Martin; Haav, Hele-Mai; Kungas, Peep; Vallner, Uuno; Kalja, Ahto; Arula, Kalle; Haav, HM; Kalja, A
Source: Self-asserted source
Ahto Kalja via ResearcherID

Applying e-environments in teaching the basics of digital logic

Proceedings - MSE 2007: 2007 IEEE International Conference on Microelectronic Systems Education: Educating Systems Designers for the Global Economy and a Secure World
2007 | Conference paper
EID:

2-s2.0-34548741343

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Applying user profile ontology for mining Web site adaptation recommendations

CEUR Workshop Proceedings
2007 | Conference paper
EID:

2-s2.0-84884650474

Contributors: Robal, T.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

eGovernment services: How to develop them, how to manage them?

Portland International Conference on Management of Engineering and Technology
2007 | Conference paper
EID:

2-s2.0-47849092035

Contributors: Kalja, A.; Kindel, K.; Kivi, R.; Robal, T.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Making web users' domain models explicit by applying ontologies

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2007 | Book
EID:

2-s2.0-38349006632

Contributors: Robal, T.; Haav, H.-M.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

A novel approach to mapping SQL relational schemata to OWL ontologies

WSEAS Transactions on Information Science and Applications
2006 | Journal article
EID:

2-s2.0-33749045900

Contributors: Astrova, I.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Analysing the web log to determine the efficiency of web systems

Databases and Information Systems
2006 | Journal article
WOSUID:

WOS:000240095600025

Contributors: Robal, Tanno; Kalja, Ahto; Pold, Janari; Vasilecas, O; Eder, J; Caplinskas, A
Source: Self-asserted source
Ahto Kalja via ResearcherID

e-EDU - An information system for e-learning services

Databases and Information Systems
2005 | Journal article
WOSUID:

WOS:000228995300022

Contributors: Robal, T; Kalja, A; Barzdins, J; Caplinskas, A
Source: Self-asserted source
Ahto Kalja via ResearcherID

eGovernment in Estonia: Best practices

Portland International Conference on Management of Engineering and Technology
2005 | Conference paper
EID:

2-s2.0-33748861609

Contributors: Kalja, A.; Reitsakas, A.; Saard, N.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): Preface

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2005 | Book
EID:

2-s2.0-33645967738

Contributors: Eder, J.; Haav, H.-M.; Kalja, A.; Penjam, J.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

IT innovation is the first step on the way to the information society

PICMET
2002 | Conference paper
EID:

2-s2.0-0036989975

Contributors: Jaakkola, H.; Kalja, A.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier

Co-operation of Universities and IT companies in Estonia

IEEE International Engineering Management Conference
1998 | Conference paper
EID:

2-s2.0-0032218575

Contributors: Jaakkola, H.; Kalja, A.; Meriste, M.
Source: Self-asserted source
Ahto Kalja via Scopus - Elsevier