Senior University Lecturer, Docent, PhD
Dispatching problems in queueing systems
Publications
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E. Hyytiä, S. Aalto, A. Penttinen and R. Sulonen,
A stochastic model for a vehicle in a dial-a-ride system,
Operations Research Letters, 38, 432-435, 2010
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E. Hyytiä, A. Penttinen, S. Aalto and J. Virtamo,
Dispatching problem with fixed size jobs and processor sharing discipline,
in ITC 23
(23rd International Teletraffic Congress,
San Francisco, CA, September 2011),
pp. 190-197, 2011
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E. Hyytiä, J. Virtamo, S. Aalto and A. Penttinen,
M/M/1-PS queue and size-aware task assignment,
Performance Evaluation, 68, 1136-1148, 2011
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A. Penttinen, E. Hyytiä and S. Aalto,
Energy-aware dispatching in parallel queues with on-off energy consumption,
in IEEE IPCCC 2011
(30th IEEE International Performance Computing and Communications Conference,
Orlando, FL, USA, November 2011)
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E. Hyytiä, A. Penttinen and S. Aalto,
Size- and state-aware dispatching problem with queue-specific job sizes,
European Journal of Operational Research 217, 357-370, 2012
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E. Hyytiä, S. Aalto and A. Penttinen,
Minimizing slowdown in heterogeneous size-aware dispatching systems,
in ACM SIGMETRICS/PERFORMANCE 2012
(Joint International Conference on Measurement and Modeling of Computer Systems,
London, UK, June 2012),
pp. 29-40, 2012
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E. Hyytiä, S. Aalto, A. Penttinen and J. Virtamo,
On the value function of the M/G/1 FCFS and LCFS queues,
Journal of Applied Probability 49, 1052-1071, 2012
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E. Hyytiä and S. Aalto,
To split or not to split: Selecting the right server with batch arrivals,
Operations Research Letters 41, 325-330, 2013
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E. Hyytiä and S. Aalto,
Round-Robin routing policy: Value functions and mean performance with job- and server-specific costs,
in ValueTools 2013
(7th International Conference on Performance Evaluation Methodologies and Tools,
Torino, Italy, December 2013),
pp. 68-79, 2013
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E. Hyytiä, R. Righter and S. Aalto,
Task assignment in a heterogeneous server farm with switching delays and general
energy-aware cost structure,
Performance Evaluation 75–76, 17–35, 2014
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E. Hyytiä, R. Righter and S. Aalto,
Energy-aware job assignment in server farms with setup delays under LCFS and PS,
in ITC 26
(26th International Teletraffic Congress, Karlskrona, Sweden, September 2014)
BEST PAPER AWARD
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E. Hyytiä and S. Aalto,
On round-robin routing with FCFS and LCFS scheduling,
Performance Evaluation 97, 83-103, 2016
(Special Issue:
Performance Evaluation Methodologies and Tools:
Selected Papers from VALUETOOLS 2013)
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J. Doncel, S. Aalto and U. Ayesta,
Economies of scale in parallel-server systems,
in IEEE Infocom 2017
(IEEE International Conference on Computer Communications,
Atlanta, GA, May 2017), pp. 1350-1358, 2017
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E. Hyytiä, D. Down, P. Lassila and S. Aalto,
Dynamic control of running servers,
in MMB 2018
(19th International GI/ITG Conference on Measurement, Modelling and
Evaluation of Computing Systems, Erlangen, Germany, February 2018),
LNCS 10740, Springer, pp. 127-141, 2018
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S. Aalto and P. Lassila,
Whittle index approach to energy-aware dispatching,
in ITC 30
(30th International Teletraffic Congress, Vienna, Austria, September 2018),
pp. 19-27, 2018
Presentations
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Size-aware MDP approach to dispatching problems,
EURO-INFORMS 2013,
26th European Conference on Operational Research,
Rome, Italy, July 2013
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Round-Robin routing policy: Value functions and mean performance with job- and server-specific costs,
ValueTools 2013,
7th International Conference on Performance Evaluation Methodologies and Tools,
Torino, Italy, December 2013
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Whittle index approach to energy-aware dispatching,
ITC 30,
Vienna, Austria, September 2018