1992 …2019

Research output per year

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Research Output

2019

Ethics Versus Loyalty: A Young Professional's Case

Ovaska, S. J., 1 Nov 2019, In : IEEE POTENTIALS. 38, 6, p. 30-31 2 p., 8895855.

Research output: Contribution to journalArticleProfessional

2018

Comparison of converters using LLC and LCCT resonant tanks

Pridala, M., Frivaldsky, M. & Ovaska, S. J., 26 Jun 2018, Proceedings of the 12th International Conference ELEKTRO (ELEKTRO 2018). IEEE, p. 1-5 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

If I were a student again: My next choice

Ovaska, S., 2 May 2018, In : IEEE POTENTIALS. 37, 3, p. 41-42 2 p.

Research output: Contribution to journalArticleProfessional

Managing your career in a dynamic environment

Ovaska, S., 2 May 2018, In : IEEE POTENTIALS. 37, 3, p. 24-26 3 p.

Research output: Contribution to journalArticleProfessional

2017

aaltOS for energy harvesting applications: Effects of clock frequency and system tick on power and energy consumption

Khan, A. A., Ahistus, M., Liukko, T., Lumela, J., Sassi, O. & Ovaska, S., Nov 2017, Proceedings of the 2017 IEEE 14th International Scientific Conference on Informatics, Informatics'2017. IEEE, p. 168-172 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Comparison of LLC and LCCT converter topologies

Prídala, M., Frivaldský, M. & Ovaska, S., Nov 2017, Proceedings of the European Conference on Electrical Engineering and Computer Science, EECS 2017. IEEE, p. 365-369 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2016

Direct-to-chip liquid cooling for reducing power consumption in a subarctic supercomputer centre

Ovaska, S. J., Dragseth, R. E. & Hanssen, S. A., 2016, In : INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING AND NETWORKING. 9, 3, p. 242-249 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
4 Citations (Scopus)
102 Downloads (Pure)

Impact of retrofitted CPU water cooling on supercomputer performance and power consumption

Ovaska, S., Dragseth, R. & Hanssen, S., 7 Jul 2016, SoutheastCon 2016. IEEE, Vol. 2016-July. 2 p. 7506669

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Modeling power flow in computer and server systems

Malkamäki, T. & Ovaska, S., 21 Jun 2016, Proceedings of the 2nd International Workshop on Energy-Aware Simulation, ENERGY-SIM 2016. ACM, 7 p. 2939950

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

Towards automation of knowledge understanding: An approach for probabilistic generative classifiers

Fisch, D., Gruhl, C., Kalkowski, E., Sick, B. & Ovaska, S., 2016, In : Information Sciences. 370-371, p. 476-496 21 p.

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Workshop: Sustainable and energy efficient data centers

Ovaska, S., 7 Jul 2016, SoutheastCon 2016. IEEE, Vol. 2016-July. 2 p. 7506675

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)
2015

Analytical model of data center infrastructure efficiency for system level simulations

Malkamäki, T. & Ovaska, S. J., 2015, 8th International Conference on Simulation Tools and Techniques, Athens, Greece, August 24-26, 2015. Brussels, Belgium: ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering), p. 319-325

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Design of an energy management scheme for a series-hybrid powertrain in heavy-duty vehicle applications

Liukkonen, M., Suomela, J. & Ovaska, S. J., 2015, In : International Journal of Powertrains. 4, 1, p. 53-70

Research output: Contribution to journalArticleScientificpeer-review

2014

A hybrid optimization method based on differential evolution and harmony search

Gao, X., Wang, X., Ovaska, S. J. & Zenger, K., 2014, In : International Journal of Computational Intelligence and Applications. 13, 1, p. 1-23

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Sensitivity analysis for the design of an energy management scheme of supercapacitor buffereing in a regulated DC bus

Liukkonen, M., Ovaska, S. J. & Kyyrä, J., 2014, The 16th European Conference on Power Electronics and Applications (EPE'14-ECCE), Lappeenranta, Finland, August 26-28, 2014. IEEE, p. 1-8 8 p. (European Conference on Power Electronics and Applications).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

3 Citations (Scopus)
2013

Modeling of multiport DC busses in power-electronic systems

Liukkonen, M., Hinkkanen, M., Kyyrä, J. & Ovaska, S. J., 25 Feb 2013, The IEEE International Conference on Industrial Technology (ICIT 2013). Cape Town, South Africa: IEEE, p. 740-745 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
File
7 Citations (Scopus)
155 Downloads (Pure)

Modelling of parasitic inductances of a high precision inductive adder for CLIC

Holma, J., Barnes, M. J. & Ovaska, S. J., 2013, The 4th International Particle Accelerator Conference (IPAC'13), Shanghai, China, May 12-17, 2013. p. 738-740

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

10 Citations (Scopus)
2012

A discrete optimization problem for benchmarking heuristic algorithms targeted for digital filter design

Ovaska, S. J. & Shilane, D. A., 2012, In : International Journal of Computers and their Applications. 19, 3, p. 176-186

Research output: Contribution to journalArticleScientificpeer-review

A hybrid optimization method for wind generator design

Gao, X. Z., Wang, X., Jokinen, T., Ovaska, S. J., Arkkio, A. & Zenger, K., 2012, In : INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING, INFORMATION AND CONTROL. 8, 6, p. 4347-4373

Research output: Contribution to journalArticleScientificpeer-review

29 Citations (Scopus)

A hybrid optimization method of harmony search and opposition-based learning

Gao, X. Z., Wang, X., Ovaska, S. J. & Zenger, K., 2012, In : Engineering Optimization. 44, 8, p. 895-914

Research output: Contribution to journalArticleScientificpeer-review

42 Citations (Scopus)

A hybrid PBIL-based harmony search method

Gao, X. Z., Wang, X., Jokinen, T., Ovaska, S. J., Arkkio, A. & Zenger, K., 2012, In : Neural Computing and Applications. 21, 5, p. 1071-1083

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)

Computationally Intelligent Hybrid Systems: The Fusion of Soft Computing and Hard Computing

Ovaska, S. J. (ed.), 8 Jun 2012, Wiley. 408 p.

Research output: Book/ReportAnthologyScientificpeer-review

2 Citations (Scopus)

Current reference generator for single-phase shunt active power filters based on MGP-FIR

Talla, J., Peroutka, Z., Ovaska, S. J. & Blahnik, V., 2012, The 38th Annual International Conference of the IEEE Industrial Electronics Society (IECON-12), Montreal, Canada, October 25-28, 2012. p. 1268-1273 (IEEE Industrial Electronics Society).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

11 Citations (Scopus)

Data centers and energy balance in Finland

Malkamäki, T. & Ovaska, S. J., 2012, The 1st International Workshop on Power Grid-Friendly Computing (PGFC 2012), San Jose, CA, June 5-8, 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

3 Citations (Scopus)

Genetic algorithm based optimization of MGP-FIR current reference generator for active power filters

Talla, J., Peroutka, Z., Ovaska, S. J. & Stehlik, J., 2012, The 7th International Conference on Soft Computing Models in Industrial and Environmental Applications (SOCO 2012), Ostrava, Czech Republic, September 5-7, 2012. p. 429-438 (Advances in Intelligent Systems and Computing).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

3 Citations (Scopus)

Predictive Filtering Methods for Power Systems Applications

Ovaska, S. J., 8 Jun 2012, Computationally Intelligent Hybrid Systems: The Fusion of Soft Computing and Hard Computing. Wiley, p. 203-240 38 p.

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

2 Citations (Scopus)

Solar energy and free cooling potential in European data centers

Malkamäki, T. & Ovaska, S. J., 2012, In : PROCEDIA COMPUTER SCIENCE. 10, p. 1004-1009

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
11 Citations (Scopus)
117 Downloads (Pure)
2011

A discussion on Finland’s dual higher education vis-à-vis Japan’s technical colleges

Kamiya, A. & Ovaska, S. J., 2011, The 59th JSEE Annual Conference & Exposition (JSEE 2011), Sapporo, Japan, September 8-10, 2011. p. 56-59

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

A negative selection algorithm-based motor fault detection scheme

Gao, X. Z., Wang, X., Ovaska, S. J., Arkkio, A. & Zenger, K., 2011, The 7th International Conference on Natural Computation (ICNC 2011), Shanghai, China, July 26-28, 2011. p. 1583-1587

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

3 Citations (Scopus)

Developments of dual higher education in Finland and technical college education in Japan

Kamiya, A. & Ovaska, S. J., 2011, In : JOURNAL OF THE JAPANESE SOCIETY FOR ENGINEERING EDUCATION. 59, 2, p. 34-40

Research output: Contribution to journalReview ArticleScientificpeer-review

In your interest: Objective interestingness measures for a generative classifier

Fisch, D., Kalkowski, E., Sick, B. & Ovaska, S. J., 2011, The 3rd International Conference on Agents and Artificial Intelligence (ICAART 2011), Rome, Italy, January 28-30, 2011. Rome, Italy, p. 414-423

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

10 Citations (Scopus)

Optimal state estimation for improved power measurements and model verification: Theory

Malkamäki, T. & Ovaska, S. J., 2011, The 1st International Workshop on Power Measurement and Profiling (PMP 2011), Orlando, FL, July 25-28, 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

Preliminary design of the pulse generator for the CLIC DR extraction system

Holma, J., Barnes, M. J. & Ovaska, S. J., 2011, The 18th IEEE Pulsed Power Conference (PPC 2011), Chicago, IL, June 19-23, 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

12 Citations (Scopus)

Real-Time Systems Design and Analysis: Tools for the Practitioner

Laplante, P. A. & Ovaska, S. J., 2011, 4th ed. ed. Hoboken, NJ: JOHN WILEY & SONS. 560 p.

Research output: Book/ReportBookProfessional

52 Citations (Scopus)
2010

A harmony search-based differential evolution method

Gao, X-Z., Wang, X. & Ovaska, S., 2010, 13th IEEE International Conference on Computational Science and Engineering, Hong Kong, China, December 2010. Hong Kong, China, p. 333-339

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

6 Citations (Scopus)

A hybrid harmony search method based on OBL

Gao, X-Z., Wang, X. & Ovaska, S., 2010, 13th IEEE International Conference on Computational Science and Engineering, Hong Kong, China, December 2010. Hong Kong, China, p. 140-145

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

9 Citations (Scopus)

A hybrid PBIL-based harmony search method with application in wind generator optimization

Gao, X-Z., Jokinen, T., Wang, X., Arkkio, A. & Ovaska, S., 2010, 2nd World Congress on Nature and Biologically Inspired Computing, Kitakyushu, Japan, December 2010. Machine Intelligence Research Labs, p. 268-274

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

A modified harmony search method in constrained optimization

Gao, X. Z., Wang, X., Ovaska, S. J. & Xu, H., 2010, In : INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL. 6, 9, p. 4235-4247

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

A new harmony search method in optimal wind generator design

Gao, X-Z., Jokinen, T., Wang, X., Ovaska, S. & Arkkio, A., 2010, The XIX International Conference on Electrical Machines, Rome, Italy, September 6-8, 2010. p. 6

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

18 Citations (Scopus)

A simplified linguistic information feedback-based dynamical fuzzy system

Gao, X. Z., Ovaska, S. J. & Wang, X., 2010, In : Neural Computing and Applications. 19, 7, p. 1029-1041

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Current reference generator for 50-Hz and 16.7-Hz shunt active power filters

Komrska, T., Žák, J., Ovaska, S. J. & Peroutka, Z., 2010, In : International Journal of Electronics. 97, 1, p. 63-81

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)

Multi-level optimization of negative selection algorithm detectors with application in motor fault detection

Gao, X. Z., Ovaska, S. J., Wang, X. & Chow, M-Y., 2010, In : Intelligent Automation and Soft Computing. 16, 3, p. 353-375

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

So near and yet so far: New insight into properties of some well-known classifier paradigms

Fisch, D., Kühbeck, B., Sick, B. & Ovaska, S. J., 2010, In : Information Sciences. 180, 18, p. 3381-3401

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)
2009

Active power filter for traction applications with first harmonic adaptive estimation

Komrska, T., Zak, J., Peroutka, Z. & Ovaska, S., 2009, the 31st Conference of Electric Drives (ELPO 2009), Pilsen, Czech Republic, June 16-18, 2009.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

A hybrid artificial immune optimization method

Wang, X., Gao, X. & Ovaska, S., 2009, In : International Journal of Computational Intelligence Systems. 2, 3, p. 249-256

Research output: Contribution to journalArticleScientificpeer-review

A linguistic information feed-back-based dynamical fuzzy system (LIFBDFS) with learning algorithm

Gao, X., Ovaska, S. J. & Wang, X., 2009, In : Neural Computing & Applications. 18, 4, p. 321-329

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Clonal optimization-based negative selection algorithm with applications in motor fault detection

Gao, X., Ovaska, S., Wang, X. & Chow, M-Y., 2009, In : Neural Computing & Applications. 18, 7, p. 719-729

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Fusion of clonal selection algorithm and harmony search method in optimisation of fuzzy classification systems

Wang, X., Gao, X. & Ovaska, S., 2009, In : International Journal of Bio-Inspired Computation. 1, 1-2, p. 80-88

Research output: Contribution to journalArticleScientificpeer-review

46 Citations (Scopus)

Fusion of clonal selection algorithm differential evolution method in training casade-correlation neural network

Gao, X., Wang, X. & Ovaska, S., 2009, In : Neurocomputing. 72, 10-12, p. 2483-2490

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Harmony search methods for multi-modal and constrained optimization

Gao, X., Wang, X. & Ovaska, S., 2009, Music-Inspired Harmony Search Algorithm. Ed.Heidelberg, G. (ed.). Heidelberg, Germany, p. 39-51

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

10 Citations (Scopus)