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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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Articles in journals (26):

• Sami Hyrynsalmi, Arho Suominen, Tuomas Mäkilä, Timo Knuutila, The Emerging Application Ecosystems: An Introductory Analysis of Android Ecosystem. International Journal of E-Business Research 10(2), 61–81, 2014.
• Arho Suominen, Sami Hyrynsalmi, Timo Knuutila, Young Mobile Users: Radical and Individual – Not. Telematics and Informatics 31(2), 266–281, 2014.
• Frans Vainio, Tapio Pahikkala, Mika Johnsson, Olli S. Nevalainen, Timo Knuutila, Estimating the production time of a PCB assembly job without solving the optimised machine control. International Journal of Computer Integrated Manufacturing 27 (2014)(4/2014), 1 –13, 2014.
• Csaba Ráduly-Baka, Timo Knuutila, Mika Johnsson, OlliS. Nevalainen, Organizing the Operation of Radial Machine Sequencers for Multiple PCB Types. Computers & Industrial Engineering 61, 1003–1010, 2011.
• Aiying Rong, Attila Toth, Olli S. Nevalainen, Timo Knuutila, Risto Lahdelma, Modeling the machine configuration and line-balancing problem of a PCB assembly line with modular placement machines. International Journal of Advanced Manufacturing Technology 54, 349–360, 2011.
• Stefan Emet, Timo Knuutila, Esa Alhoniemi, Michael Maier, Mika Johnsson, Olli S. Nevalainen, Workload Balancing in Printed Circuit Board Assembly. International Journal of Advanced Manufacturing Technology , 2010.
• Csaba Raduly-Baka, Timo Knuutila, Mika Johnsson, Olli S. Nevalainen, Construction of Component Tapes for Radial Placement Machines. Computers & Operations Research Vol. 37, , 1488-1499, 2010.
• Attila Toth, Timo Knuutila, Olli S. Nevalainen, Reconfiguring Flexible Machine Modules of a PCB Assembly Line. Production Engineering Research and Development DOI 10.1007/s11740-009-0200-2(4), 85-94, 2010.
• Frans Vainio, Michael Maier, Timo Knuutila, Esa Alhoniemi, Mika Johnsson, Olli S Nevalainen, Estimating Printed Circuit Board Assembly Times Using Neural Networks. International journal of production research 48(8), 2201–2218, 2010.
• Csaba Raduly-Baka, Timo Knuutila, Mika Johnsson, Olli S. Nevalainen, Construction of Component Tapes for Radial Placement Machines. Computers & Operations Research Electronic edition, 1-35, 2009.
• Attila Toth, Timo Knuutila, Olli S. Nevalainen, Reconfiguring Flexible Machine Modules of a PCB Assembly Line. Production Engineering DOI 10.1007/s11740-009-0200-2, 2009.
• Mika Hirvikorpi, Timo Knuutila, Timo Leipälä, Olli Nevalainen, Job Scheduling and Management of Wearing Tools with Stochastic Tool Lifetimes. International Journal of Flexible Manufacturing Systems , 2008.
• Csaba Raduly-Baka, Timo Knuutila, Mika Johnsson, Olli S. Nevalainen, Selecting the Nozzle Assortment for a Gantry-Type Placement Machine. OR Spectrum 30, 493–513, 2008.
• Timo Knuutila, Sami Pyöttiälä, Olli S. Nevalainen, Minimizing the Number of Pickups on a Multi-Head Placement Machine. Journal of the Operational Research Society 58(1), 115–121, 2007.
• Mika Hirvikorpi, Olli S. Nevalainen, Timo Knuutila, Job Ordering and Management of Wearing Tools . Engineering Optimization 38(2), 227–244, 2006.
• Mika Hirvikorpi, Kari Salonen, Timo Knuutila, Olli Nevalainen, General Two-Level Storage Management Problem: A Reconsideration of the KTNS-Rule. European Journal of Operational Research 171(1), 189–207, 2006.
• Kari Salonen, Timo Knuutila, Mika Johnsson, Olli S. Nevalainen, Planning and Controlling the Component Assembly for Multimodel PCBs. WSEAS Transactions on Systems 5(4), 855-863, 2006.
• Mika Hirvikorpi, Timo Knuutila, Mika Johnsson, Olli Nevalainen, A General Approach to Grouping of PCB Assembly Jobs. International Journal of Computer Integrated Manufacturing 18(8), 710–720, 2005.
• Timo Knuutila, Mika Hirvikorpi, Mika Johnsson, Olli S. Nevalainen, Grouping of PCB Assembly Jobs in the Case of Flexible Feeder Units. Engineering Optimization 37(1), 29–48, 2005.
• Frans Vainio, Mika Johnsson, Timo Knuutila, Olli S. Nevalainen, Operational Stategies for Dual-handed Assembly Robots. WSEAS Transactions on Circuit and Systems 4(3), 139-147, 2005.
• Timo Knuutila, Mika Hirvikorpi, Mika Johnsson, Olli Nevalainen, Grouping PCB Assembly Jobs with Feeders of Several Types. Journal of Flexible Manufacturing Systems 16(2), 2004.
• Timo Knuutila, Olli Nevalainen, A Reduction Technique for Weighted Grouping Problems. European Journal of Operations Research (140), 590-605, 2002.
• Timo Knuutila, Re-Describing an Algorithm by Hopcroft. Journal of Theoretical Computer Science 250(1-2), 333--363, 2001.
• Timo Knuutila, Mikko Puranen, Mika Johnsson, Olli Nevalainen, Three perspectives for solving the job grouping problem. International Journal of Production Research 39(18), 4261–4280, 2001.
• Timo Knuutila, Efficient Prolog Programming. Software - Practice and Experience 22(3), 209-221, 1994.
• Timo Knuutila, Magnus Steinby, The inference of tree language from finite samples: An algebraic approach. Theor. Comput. Sci. 129(2), 337--367, 1994.

Articles in proceedings (28):

• Aki Halonen, Sami Hyrynsalmi, Kai K. Kimppa, Timo Knuutila, Jouni Smed, Harri Hakonen, Towards Usability Heuristics for Games Utilizing Speech Recognition. In: Mitsuyki Inaba, Koichi Hosoi, Ruck Thawonmas, Akinori Nakamura, Masayuki Uemura (Eds.), 4th Asian Conference on Simulation and AI in Computer Games & 4th Asian Simulation Technology Conference, 65-69, Eurosis-ETI, 2012.
• Sami Hyrynsalmi, Tuomas Mäkilä, Antero Järvi, Arho Suominen, Marko Seppänen, Timo Knuutila, App Store, Marketplace, Play! An Analysis of Multi-Homing in Mobile Software Ecosystems. In: Slinger Jansen, Jan Bosch, Carina Alves (Eds.), Proceedings of the Fourth International Workshops on Software Ecosystems, CEUR Workshop Proceedings 879, 59–72, CEUR-WS, 2012.
• Sami Hyrynsalmi, Arho Suominen, Tuomas Mäkilä, Antero Järvi, Timo Knuutila, Revenue Models of Application Developers in Android Market Ecosystem. In: Michael Cusumano, Bala Iyer, N. Venkatraman (Eds.), ICSOB 2012, LNBIP 114, 209–222, Springer, Heidelberg, 2012.
• Sami Hyrynsalmi, Arho Suominen, Tuomas Mäkilä, Timo Knuutila, The Emerging Mobile Ecosystems: An Introductory Analysis of Android Market. In: The 21st International Conference on Management of Technology (IAMOT 2012), 1–16, International Association for Management of Technology, 2012.
• Stefan Emet, Olli S. Nevalainen, Timo Knuutila, Using Nonlinear Mixed Integer Optimization in Printed Circuit Board Assembly. In: Alexander Zemliak, Nikos Mastorakis (Eds.), Applications of Mathematics & Computer Engineering, 213-216, World Scientific and Engineering Academy and Society (WSEAS), 2011.
• Sami Hyrynsalmi, Arho Suominen, Timo Knuutila, A Discussion of Software Product Conceptualizations. In: Marko Seppänen, Saku Mäkinen, Roland J. Ortt, Yasser Hosni (Eds.), Proceedings of the 5th European Conference on Management of Technology, EuroMOT2011, 226--240, Tampere University of Technology, 2011.
• Jussi Laasonen, Timo Knuutila, Jouni Smed, Eliciting Collusion Features. In: Jason Liu, Francesco Quaglia, Stephan Eidenbenz, Stephen Gilmore (Eds.), Proceedings of the 4th International ICST Conference on Simulation Tools and Techniques, SIMUTools '11, 296–303, ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering), 2011.
• Sami Pyöttiälä, Timo Knuutila, Mika Johnsson, Olli S. Nevalainen, Solving the Feeder Assignment on a Revolver-Head Gantry Machine. In: Joaquim Filipe, Juan Andrade Cetto, Jean-Louis Ferrier (Eds.), Proceedings of 6th International Conference on Informatics in Control, Automation and Robotics (ICINCO 2009), 1 - Intelligent Control Systems and Optimization, 75-80, 2009.
• Aiying Rong, Attila Toth, Olli S. Nevalainen, Timo Knuutila, Risto Lahdelma, PCB Assembly Line Modeling with Modular Placement Machines. In: Hongyi Sun, Roger Jiao, Min Xie (Eds.), Proceedings of the 2009 IEEE International Conference on Industrial Engineering and Engineering Management, 1097-1101, IEEE, 2009.
• Timo Knuutila, Sami Pyöttiälä, Olli S. Nevalainen, Minimizing the Arm Movements of a Multi-Head Gantry Machine. In: Proceedings of 4th International Conference on Informatics in Control, Automation and Robotics (ICINCO 2007), 326-335, 2007.
• Jouni Smed, Timo Knuutila, Harri Hakonen, Towards Swift and Accurate Collusion Detection. In: 8th International Conference on Intelligent Games and Simulation (Game-On 2007), 103-107, 2007.
• Cristina Tirnauca, Timo Knuutila, Polynomial Time Algorithms for Learning k-Reversible Languages and Pattern Languages with Correction Queries. In: R.A. Servedio E. Takimoto M. Hutter (Ed.), Proceedings of the 18th International Conference on Algorithmic Learning Theory (ALT 07), Lecture Notes in Artificial Intelligence, Springer-Verlag, 2007.
• Sami Pyöttiälä, Timo Knuutila, Olli S. Nevalainen, Improving the Pickups of Components on a Gantry-Type Placement Machine. In: Proceedings of the Third International Conference on Group Technology / Cellular Manufacturing 2006 (GTCM2006), 382-391, 2006.
• Kari Salonen, Timo Knuutila, Mika Johnsson, Olli S. Nevalainen, Optimized Manufacturing Processes in Multimodel PCB Assembly. In: Proceedings of the 5th WSEAS International Conference on Signal Processing, Robotics and Automation (ISPRA 2006), Madrid, Spain, 201-206, 2006.
• Jouni Smed, Timo Knuutila, Harri Hakonen, Can We Prevent Collusion in Multiplayer Online Games?. In: Proceedings of the Ninth Scandinavian Conference on Artificial Intelligence (SCAI 2006), 168-175, 2006.
• Sami Pyöttiälä, Timo Knuutila, Olli S. Nevalainen, Improving the Pickups of Components on a Gantry-type Placement Machine. In: Proceedings of the 5th International Conference on Technology and Automation 2005 (ICTA'05), 227-231, 2005.
• Csaba Raduly-Baka, Timo Knuutila, Olli S. Nevalainen, Minimising the Number of Tool Switches with Tools of Different Sizes. In: Proceedings of the 5th International Conference on Technology and Automation 2005 (ICTA'05), 191-197, 2005.
• Tiberiu Seceleanu, Timo Knuutila, Olli S. Nevalainen, Starvation-Free Arbitration Policies for the Segmented Bus Platform. In: Proceedings of the International Symposium on Signals, Circuits & Systems - ISSCS'2005, 67-70, 2005.
• Frans Vainio, Mika Johnsson, Timo Knuutila, Olli S. Nevalainen, Petri Nets and Dual-Handed Assembly Robots. In: 7th WSEAS International Conference on Automatic Control, Modelling and Simulation (ACMOS '05), 2005.
• Esa Alhoniemi, Timo Knuutila, Mika Johnsson, Juha Röyhkiö, Olli S. Nevalainen, Using Data Mining to Support the Maintenance of Electronic Component Libraries. In: Elektroniikan valmistus -konferenssi, Pori, 13-14.5.2004, pp. 8, 2004.
• Esa Alhoniemi, Timo Knuutila, Mika Johnsson, Juha Röyhkiö, Olli S. Nevalainen, Data Mining in Maintenance of Electronic Component Libraries. In: Proceedings of the IEEE 4th International Conference on Intelligent Systems Design and Application, 1, 403-408, 2004.
• Mika Hirvikorpi, Timo Knuutila, Timo Leipälä, Olli S. Nevalainen, Management of Tools with Stochastic Lifetimes in Single Machine Job Scheduling. In: Proceedings of the 15th International DAAAM Symposium "Intelligent Manufacturing and Automatization", 157-158, DAAAM International, 2004.
• Mika Hirvikorpi, Timo Knuutila, Mika Johnsson, Olli Nevalainen, Grouping of PCB Assembly Jobs in the Case of Flexible Feeder Units. In: Grouping Techniques/Cellular Manufacturing Word Conference 03, Ohio, 195-201, 2003.
• Timo Knuutila, Mikko Puranen, Mika Johnsson, Olli Nevalainen, Exact solution of the job grouping problem by constraint programming. In: Proceedings of the Group Technology/Cellular Manufacturing World Symposium - Year 2000, 125-130, 2000.