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Department: Any ÅAU / Department of Information Technologies UTU / Department of Information Technology UTU / Department of Mathematics and Statistics UTU / Turku School of Economics, Institute of Information Systems Sciences

Research Unit: Any Algorithmics and Computational Intelligence Group (ACI) Biomathematics Research Unit (BIOMATH) Communication Systems (ComSys) Computational Biomodeling Laboratory (Combio Lab) Data Mining and Knowledge Management Laboratory Distributed Systems Laboratory (DS Lab) Embedded Computer and Electronic Systems (ECES) Embedded Systems Laboratory (ESLAB) FUNDIM, Fundamentals of Computing and Discrete Mathematics Institute for Advanced Management Systems Research (IAMSR) Learning and Reasoning Lab Software Construction Laboratorium Software Development Laboratory (SwDev) Software Engineering Laboratory (SE Lab) Turku BioNLP Group Turku Optimization Group (TOpGroup) UTU Information Systems Science (ISS)

Publication type: Any Monographs Edited books Edited special issues of journals Edited proceedings Articles in journals Articles in proceedings Chapters in edited books Ph.D. thesis Lic. thesis Technical reports

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Monographs (1):

• Vergil Voineagu, Alexandru Isaic-Maniu, Constantin Mitrut, Tudorel Andrei, Adrian Costea, Statistics. CISON, 2002.

Articles in journals (1):

• Adrian Costea, Tomas Eklund, Jonas Karlsson, V. Voineagu, Financial Performance Analysis of Scandinavian Telecommunications Companies using Statistical and Neural Networks Techniques. Economic Computation and Economic Cybernetics Studies and Research 4, 87–104, 2009.

Articles in proceedings (11):

• Francisco Augusto Alcaraz Garcia, Adrian Costea, A Weighting FCM Algorithm for Clusterization of Companies as to their Financial Performances. In: Proceedings of IEEE 4th International Conference on Intelligent Systems Design and Applications (ISDA 2004), Budapest, Hungary, 589-595, IEEE, 2004.
• Francisco Augusto Alcaraz Garcia, Adrian Costea, On Assessing Companies' Financial Performances by the Means of Weighting FCM Clustering. In: Pham Dinh Tao Le Thi Hoai An (Ed.), Modelling, Computation, Optimization in Information System & Management Sciences, Hermes Science, 2004.
• Adrian Costea, Tomas Eklund, Combining Clustering and Classification Techniques for Financial Performace Analysis. In: Proceedings of The 8th World Multi-Conference on Systemics, Cybernetics and Informatics (SCI2004), Orlando, Florida, July 18-21, 2004., 2004.
• Iulian Nastac, Adrian Costea, A Retraining Neural Network Technique for Glass Manufacturing Data Forecasting. In: Proceedings of 2004 IEEE International Joint Conference on Neural Networks, IEEE, 2004.
• Iulian Nastac, Adrian Costea, A Neural Network Retraining Approach for Process Output Prediction. In: Proceedings of 8th World Multi-Conference on Systemics, Cybernetics and Informatics (SCI2004), Orlando, Florida, XVII, IIIS, 2004.
• Adrian Costea, Economic Performance Classification Using Neural Networks. In: Ion Ivan, Ion-Gheorghe Rosca (Eds.), Proceedings of the Sixth International Symposium on Economic Informatics, Bucharest, Romania, May 8-1, Academy of Economic Studies, 2003.
• Adrian Costea, Tomas Eklund, A Two Level Approach to Making Class Predictions. In: Ralph H. jr Sprague (Ed.), Proceedings of the 36th Hawaii International Conference on Systems Sciences (HICSS-36), 1–10, IEEE, 2003.
• Antonina Kloptchenko, Tomas Eklund, Adrian Costea, Barbro Back, A Conceptual Model for a Multiagent Knowledge Building System. In: Olivier Camp, Mario Piattini (Eds.), Proceedings of the 5th International Conference on Enterprise Information Systems (ICEIS 2003), 2, 223–228, ICEIS Org, 2003.
• Adrian Costea, Tomas Eklund, Jonas Karlsson, Making Economic-Financial Predictions using SOM and two Different Classification Techniques: Multinomial Logistic Regression and Decision Tree Induction. In: Proceedings of Central & Eastern European Workshop on Efficiency and Productivity Analysis, Bucharest, Romania, June 28-29., 2002.
• Adrian Costea, Tomas Eklund, Jonas Karlsson, A Framework for Predictive Data Mining in the Telecommunications Sector. In: Pedro Isiais (Ed.), Proceedings of the IADIS International Conference WWW/Internet 2002, 38–46, IADIS Press, 2002.
• Adrian Costea, Antonina Kloptchenko, Barbro Back, Analyzing Economical Performance of Central-East-European Countries Using Neural Networks and Cluster Analysis. In: Proceedings of the Fifth International Symposium on Economic Informatics, Bucharest, Romania, May 10-13. , 1006-1011, 2001.

Ph.D. thesis (1):

• Adrian Costea, Computational Intelligence Methods for Quantitative Data Mining. TUCS Dissertations 67. Turku Centre for Computer Science, 2005.

Technical reports (3):

• Adrian Costea, Iulian Nastac, Three Factors Affecting the Predictive Performance of ANNs: Pre-Processing Method, Data Distribution and Training Mechanism. TUCS Technical Reports 679, Turku Centre for Computer Science, 2005.
• Francisco Augusto Alcaraz Garcia, Adrian Costea, A Weighting FCM Algorithm for Clusterization of Companies as to their Financial Performances. TUCS Technical Reports 591, Turku Centre for Computer Science, 2004.
• Iulian Nastac, Adrian Costea, Advanced Data Forecasting Using Retraining Neural Network Technique. TUCS Technical Reports 542, Turku Centre for Computer Science, 2003.