About me :
Professor at the Hamilton Institute, NUI, Maynooth and Visting Professor at
TU-Berlin. Professor Robert Shorten The Hamilton Institute NUI Maynooth Co. Kildare Ireland Tel: +353 +1 +7084598 (or currently
+49 +30 +31423408) Email: robert dot shorten at nuim
dot ie My past
: Worked on railway systems (AEG Westinghouse); Automotive
control and signal processing
(Daimler-Benz). I was also
briefly a visiting Post Doc at Yale University with Prof. K. S. Narendra. I
am a Co-founder of Hamilton Institute (2002) and Marie Curie Association
in Ireland (1998). I am a former
Irish representative of the European Union Control Association. I have also worked with a number of
companies in the following areas; telecommunications; automotive; and energy. I
have been a reviewer for international and national agencies. Research
: Stability
theory, feedback control of networks, and distributed control and optimization.
Applications of this work include cloud computing, data centres, emissions
control and modeling, charging strategies for electric vehicles and in the
control and optimization of large scale systems with application in
transportation networks Funding
and current opportunities : We are
currently interviewing candidates for the following positions. We are not
accepting applications until further notice. 1. Post-doctoral researcher in the area of transportation/pollution modelling and control (with specific regard to new vehicle types and vehicle mixes);2. Post-doctoral researcher in the area of control and optimization of massively large-scale systems with constraints (incorporating best effort notions);3. Post-doctoral researcher in the area of cooperative mobility systems and applications of v2x technologies (including co-modal mobility). 4. Ph.D. position in the area of cooperative control and optimization with application to transportation networks.5. Ph.D. position in feedback based stochastic routing with application to transportation systems.6. Ph.D. position in cooperative ECO adaptive cruise control.7. Ph.D. position in cooperative algorithms for PHEV charging and grid integration. 8. Ph.D. position in cooperative sensing with specific application to cooperative GPS applications.A background and knowledge of one or more of the following areas is desirable: Control and Optimization; Pollution modelling and sensing; v2X; LDM technologies; Plug-in FEV and PHEV; Routing algorithms; GPS; Automotive systems; Economics. Strong industry participation in the project is anticipated.Publications :
If you are interested in my papers, please check out the following link: http://scholar.google.com/citations?user=Rnb8M9AAAAAJ&hl=en All published papers will eventually appear here. Below you
can find a list of published journal papers. [101] S. Sajja, F. Rossi, P. Colaneri, R. Shorten, “Pade
discretisation for linear systems with polyhedral Lyapunov functions”,
IEEE Transactions on Automatic Control, Accepted, 2012. [100] S. Studll, E. Chrisostomi,
R. Middleton, R, Shorten, A flexible distributed framework for realising
electric and plug-in-hybrid vehicle charging policies, International Journal of
Control, Accepted, 2012. [99] A. Scholte, A. Berman, R. Shorten, On
the higher moments of TCP, Linear Algebra and its applications, Accepted
subject to minor revision, 2012. [98] Corless, M., Shorten, R., An Ergodic TCP for
High-Speed Networks, International Journal of Control, Accepted, 2012. [97] Doyle, J.,
O’Mahony, D., and Shorten, R., "Fair-share" for fair bandwidth
allocation in cloud computing, IEEE Communications Letters, Accepted, 2012 [96] Griggs, W., Shravan, S., Anderson , B., Shorten, R., On Interconnections of
“Mixed” Systems Using Classical Stability Theory, Systems and
Control Letters, Accepted, 2012. [95] Schlote, A., Crisostomi, E., Kirkland, S., Shorten ,
R., Traffic Modelling Framework for Electric Vehicles, International Journal of
Control, Accepted, 2012. [94] Berman, A., King,
C., and Shorten, R., On common diagonal co-stability, Linear
and Multi-linear Algebra, Accepted, 2012. [93] Kumar, S., Corless, M.,
Zeheb, E. and Shorten, R., Stability conditions for a class of switching
descriptor systems, , Provisionally Accepted, Automatica, 2011. [92] Zappavigna, A., Colanieri, P., Shorten, R., Kirkland, S., Essentially Negative News
about Non-negative Matrices, Linear Algebra and its Applications, Accepted,
2012. [91] Chesi, G., Colanieri, P., Geromel, J., Middleton, R., Shorten, R.,
On The Minimum Dwell Time for Linear Switched Systems, Transactions on
Automatic Control, Accepted, 2011. [90] Crisostomi, E.,
Kirkland, S., Shorten, R., A
Google-like Model of Road Traffic Dynamics, International Journal of Control,
Vol. 84, No. 3, pp. 633–651, 2011. [89] Shorten, R., Kumar,
S., Corless, M., On Pade Approximations and the
Preservation of Quadratic Stability for Switched Linear System, Systems and
Control Letters, Volume 60, Issue 9, September, Pages 683-689 2011. [88] Corless, M., Shorten, R., Deterministic and stochastic convergence
properties of AIMD algorithms with nonlinear back-off functions, Automatica,
Accepted, 2011. [87] Knorn, F., Corless, M. and Shorten, R.
“Results in cooperative control and implicit consensus”,
International Journal of Control, Vol. 84, No. 3, 476–495,
2011 [86] Budizar,L., Stanojevic,
R., Schlote, A., Baker, F. and
Shorten, R., A strategy for
the fair coexistence of delay and loss-based TCP’s, ACM/IEEE Transactions
on Networking, Accepted, 2011. [85] Villegas, C., Griggs,
W., Corless, M., Shorten, R., A decentralised design methodology with
application to automotive control, ASME Journal of Dynamic Systems, Measurement
and Control, Vol 134(1), 2012. [84] Rossi, F., Colanieri,
P., Shorten, R., On the
preservation of polyhedral Lyapunov functions under Pade approximations , IEEE
Transactions on Automatic Control, vol. 56, issue 11, pp. 2717-2722, 2011 [83] Griggs, W., Anderson, B., Shorten,R., A Test for Determining Systems with Mixed Small Gain
and Passivity Properties, and Stability Results for Large Interconnections
of Mixed" Systems, Systems and
Control Letters vol. 60, no. 7, pp. 479-485, 2011. [82] Shorten, R., Corless, M.,
Klinge, S., Wulff, K. and Middleton, R. “Quadratic stability and singular
switched systems”, IEEE Transactions on Automatic Control, 54(11), pp.
2714-2717, 2009. [81] Corless, M. and
Shorten, R., “On the
Characterization of Strict Positive Realness for General Matrix Transfer
Functions”, IEEE Transactions on Automatic Control, vol.
55(8), pp. 1899 – 1904,
2010. [80] Narendra, K. S. and
Shorten, R., “Hurwitz Stability of Metzler Matrices”, IEEE
Transactions on Automatic Control, 55(6), pp. 1484 – 1487, 2010. [79] Stanojevic, R. and
Shorten, R., “Trading queuing delay for link utilisation”, Computer
Communications, 33(9), pp. 1108-1121 2010. [78] Stanojevic, R. and
Shorten, R.,”Distributed Dynamic Speed Scaling”, IEEE
Communications Society, Communications Technical Committee, ELetter, Special
Issue on Low Power Communications, pp. 8-11, July 2010. [77] Zeheb, E , Kumar, S.,
Shorten, R, “Spectral Conditions for Passivity of SISO descriptor systems
in state space”, International Journal of Control, Accepted, 2010 (There
are a number of typos in the final manuscript: see Erratum) [76] King, C., Griggs, W.
and Shorten, “A Kalman-Yakubovich-Popov-Type Lemma for Systems with
Certain State-Dependent Constraints”, Automatica Accepted, 2010 [75] Griggs, W., King, C.,
Shorten, R., “Quadratic Lyapunov Functions for Systems with State
Dependent Switching”, Linear Algebra and its Applications, Accepted,
2010. [74] Readman, M., Corless,
M., Villegas, C. and Shorten, R. “Adaptive Williams Filters for Active
Vehicle Suspensions”, Transactions on Measurement and Control, Accepted,
2010 (Published online March 2010). [73] J. Chiu, S. Solmaz, M.
Corless, R. Shorten, “A methodology for the design of robust rollover
prevention controllers for automotive vehicles using differential
braking”,
International Journal of Vehicle Automomous Systems, Accepted 2010. [72] I. Boniolo; P. Colaneri; P. Bolzern; M.
Corless; R. Shorten, “On the design and synthesis of limit cycles using
switching linear systems”, International Journal of Control,
83( 5), pp. 915-927, 2009 [71] Corless, M, Shorten, R.
“On a class of Generalised Eigenvalue Problems and equivalent Eigenvalue
Problems that arise in Systems and Control Theory”, Automatica, Accepted,
2010 [70] Budzisz,L., Stanojevic, R.,
Shorten, R. and Baker, F.“A strategy for fair coexistence of loss an
delay-based congestion control algorithms”, IEEE Communications Letters,
vol. 13, no. 7, p. 555-557,2009 [69] Leith, D. and Shorten,
G. MCullagh, L. Dunne, F. Baker, “Making base-rtt available for congestion
control applications”, IEEE Communications Letters, 12(6), pages 429-431,
2008 [68] Leith, D., Clifford, P.
Kellett, C., Epperlein, J., Shorten, R. “A non-invasive method to trigger
core link upgrades”, IEEE Communications Letters, 11(2), pages 1037-1039,
2007. [67] Kellett, C., Middleton, C.
and Shorten, R. “AIMD dynamics in multiple bottleneck networks”,
IEEE Communications Letters, 11(7), pages 631-633, 2007. [66] Shorten, R., Kellett, C.,
Leith, R. “On the dynamics of TCP’s higher moments”, IEEE
Comms. Letters, 11(2), pp. 210 – 212, 2007 [65] Stanojevic, R., and
Shorten, R. and Kellett, C., “Adaptive Tuning of Drop-Tail Buffers for
Reducing Queueing Delays”, IEEE Communications Letters, 10(7), pp.
570-572, June, 2006. [63] Wulff,
K., Wirth, F. and Shorten, R. “A control design method for a class of
SISO switched linear systems”, Automatica, 45(11), pp. 2592-2598, 2009. [62] Akar, M. and Shorten, R.,
“On the Existence of Common Lyapunov Functions for Consensus Algorithms
Based on Averaging”, Turkish Journal of Electrical Engineering and
Computer Science, Accepted, 2010. [60] Shorten, R. and Narendra,
K.S., “On a theorem of Redheffer on diagonal stability”, Linear
Algebra and its Applications, 431(12), pp. 2317-2329,2009. [59] Knorn, F., Stanojevic, R.,
Corless, M. and Shorten, R. “A Framework for Decentralised Feedback
Connectivity Control with Application to Sensor Networks”, International
Journal of Control, 82(11), pp. 2095-2114, 2009. [58] Corless, M., King, C. and
Shorten, R. “A result on second order non-linear operators arising in
high speed networking applications”, Automatica, 45(5), pp. 1207-1214,
2009. [57] Knorn, F., Mason, Shorten,
R., “On the existence of linear Lyapunov functions for sets of LTI
positive systems”, Automatica, 45(8), pp. 1943-1947, 2009. [55] Solmaz, S., Shorten, R.,
Wulff, K. and O’Cairbre, F., “A design methodology for the design
of switched discrete time systems with application to Automotive
Control”, Automatica, 44(9), pages 2358-2363, 2008. [54] Rogers, A., Shorten, R.,
Heffernan, D. and D. Naughton, “Synthesis of piecewise linear chaotic
maps: Invariant densities”, International journal of bifurcation and
chaos, 18(8), pages 2169-2189, 2008.
[53] Shorten, R., Mason, O. and
King, C. “An elementary proof of the result of Barker, Berman and
Plemmons, and some extensions.”, Linear Algebra and its Applications,
430(1), pp. 34-40, 2009. [52] Shorten, R., Curran, P.,
Wulff, K. and Zeheb, E. “A note on spectral conditions for positive
realness of transfer function matrices”, IEEE Transactions on Automatic
Control, 53(5), pages 1258-1261, 2008. [51] Solmaz, S., Akar M., Shorten
R., “Realtime Multiple-Model Estimation of Center of Gravity Position in
Automotive Vehicles", Vehicle systems dynamics, 46(9), pages 763-788,
2008. [50] Mason, O. and Shorten, R.
“On the existence of copositive Lyapunov functions”, IEEE
Transactions on Automatic Control, 52(7), 1346-1349, 2007 [49] Rothblum, U. and Shorten, R.
“Nonliner AIMD congestion control and contraction mappings”, SIAM
Journal of Control and Optimisation, 46(5), PP. 1882-1896, 2007 [48] Akar, M. and Shorten,
R., “Distributed probabilistic algorithms for synchronisation applications”,
IEEE Transactions on Automatic Control, 53(1), pages 389-391, 2008 [47] King, C., Shorten, R., Wirth,
F. and Akar, M. “Growth Conditions for the Global stability of Highspeed
Communication Networks”, IEEE Transactions on Automatic Control, 53(7),
pp. 1770-1774, 2008. [46] Shorten, R., Wirth, F.,
Mason, O., Wulff, K. and King, C., “Stability criteria for switched and
hybrid systems”, Invited paper for SIAM Review, 49(4), pp. 545-592, 2007. [45] King, C., Shorten, R.
“Singularity conditions for the non-existence of a common quadratic
Lyapunov function for pairs of third order linear time-invariant dynamic
systems”, Linear Algebra and its Applications, Vol. 413, pp. 24-35, 2006 [44] Shorten, R., King. C., Wirth,
F. and Leith, D. “Modelling TCP in drop-tail and other
environments”, Automatica, 43(4), pp. 441-449, 2007. [43] Solmaz S., Corless M.,
Shorten R., "A methodology for the design of robust rollover prevention
controllers for automotive vehicles with active steering", International
Journal of Control, Accepted for publication, 80(11), pp. 1763-1779, 2007. [42] Vu-Brugier, G., Stanojevich,
R., Leith, D and Shorten, R.
“A critique of recently proposed buffer sizing strategies”,
Computer Communications Review, 37(1), pp. 43-48, 2007 [41] Shorten, R. and Narendra, K.
S., Editorial, IEE Proceedings, Control Theory and Applications, 153(5) pp.
504-505, 2006. [40] Shorten, R., Leith, D. and
Wirth, F. “Products of random matrices and the internet: Asymptotic
results”, IEEE Transactions on Networking, 14(6), pp. 616-629, 2006. [39] Shorten, R. and Leith, D.
“On network efficiency, queue provisioning, and the delay bandwidth
product rule”, ACM/IEEE
Transactions on Networking, 15(4), pp. 866-877, 2007. [38] Lee, Y., Leith, D. and
Shorten, R., “Experimental
Evaluation of TCP Protocols for High-Speed Networks”, ACM/IEEE
Transactions on Networking, 15(5), pp. 1109-1122, 2007. [37] Sun, Z. and Shorten, R.,
“On Convergence Rates of Simultaneously
Triangularizable Switched Linear Systems”, IEEE Transactions on Automatic Control,
50(8), pp. 1224-1228, 2005. [36] Shorten, R. and King, C.
“Spectral conditions for Strict Positive Realness”, IEEE
Transactions on Automatic Control , 49 (10) pp. 1875-1878, 2004. [35] Zeheb, E. and Shorten, R.,
“A note on spectral conditions for strict positive realness”, IEEE
Transactions on Automatic Control, 51(5), pp. 817-820, 2006. [34] Shorten, R., O’Cairbre,
F. and Curran, P., “On the dynamic stability of a class of switching
systems”, International Journal of Control, 79(6), pp.630-640, 2006. [33] Wulff, K. and Shorten,
R. “On the maximum sector bounds for absolute stability of single-input
single-output systems”, International Journal of Control,80(6), pp.
832-842, 2007. [32] Berman, A., Laffey, T.,
Leizarowitz, A., Shorten, R., “On the second eigenvalues of matrices
associated with TCP”, Linear
Algebra and its Applications, 416(1), pp. 175-183, 2006. [31] Mason, O. and Shorten, R. and
Solmaz, S., “On the Kalman-Yakubovich-Popov lemma and common Lyapunov solutions
for matrices with, regular inertia”,
Linear Algebra and its Applications’, pp. 183- 197,
2007. [30] Wirth, F., Shorten, R.,
Stanojevic, R., and Leith, D., “Stochastic equilibria of AIMD
communication networks”, SIAM Journal of Matrix Analysis Appl., 28(3),
2006. [29] Leizarowitz, A., Stanojevic,
R. and Shorten, R., “Towards an analysis and design framework for
communication networks with Markovian dynamics”, IEE Proceedings, Control
Theory and Applications, 153(5) pp. 506-519, 2006. [28] Rogers, A., Shorten, R. and
Heffernan, D., “A Novel matrix approach for controlling the invariant
density of chaotic maps”, Accepted for Chaos, Fractals and Solitons,
35(1), pages 161-175, 2008. [27] Zeheb, E., Mason, O., Solmaz,
S. and Shorten, R., “Quadratic stability and uncertain systems”,
International Journal of Control, 80(6), pages 825-831, 2007. [26] Gurwits, L, Shorten, R. and
Mason, O., “On the stability of switched positive linear systems”,
IEEE Transactions on Automatic Control, 52(6), pages 1099-1101, 2007. [25] Mason, O. and Shorten,
R., “The geometry of convex cones associated with the Lyapunov inequality
and common Lyapunov functions”, Electronic Linear Algebra, 12, pp. 42-63,
2005. [24] Rogers, A., Shorten, R.
and Heffernan, D. “Synthesis of chaotic maps with predescribed invariant
densities”, Physical Letters
A, Volume 330, pp. 435-441, 2004. [23] Yfoulis, C. and
Shorten, R., “A numerical technique for the stability analysis of linear
switched systems”,
International Journal of Control, Volume 77, No. 11, pp. 1019-1040, July 2004. [22] Berman, A., Shorten, R. and
Leith, D., “Positive matrices associated with synchronised communication
networks”, Linear Algebra and its Applications, Volume 393, pp. 47-54,
December 2004. [21] Mason, O., Shorten, R.
“On the simultaneous diagonal stability of a pair of positive
systems”, Linear Algebra and its Applications, Vol. 413, pp. 13-23, 2006. [20] Shorten, R., Leith, D. Foy,
J. and Kilduff, R. "Analysis and design of AIMD congestion control
algorithms in communication networks," Automatica, vol. 41, pp. 725-730,
2005. [19] Shorten, R., Curran, P.,
Wulff, K. “On time-domain multiplier criteria”, International
Journal of Control, Volume 77, No. 11, pp. 985-992, July 2004. [18] Shorten, R., Mason, O.,
O'Cairbre, F. and Curran, P., “A unifying framework for the SISO
Circle Criterion and other quadratic stabilty criteria”, International
Journal of Control, Volume 77, No. 1, pp. 1-9, January 2004. [17] Mason, O. and Shorten,
R., “On common quadratic Lyapunov functions for stable discrete time LTI
systems”, Journal of Applied Mathematics, Institute of Mathematics and
its Applications, Vol. 69, pp. 271-283, 2004. [16] Shorten, R., and K. S.
Narendra, “On common quadratic Lyapunov functions for pairs of stable LTI
systems whose system matrices are in companion form”, IEEE Transactions
on Automatic Control, Volume 48, Number 3, April 2003. [15] Laffey, T, and Shorten, R.,
and F O'Cairbre, “On the stability of convex sums of rank-1 perturbed
matrices”, Mathematical Proceedings of the Royal Irish Academy, June 2004
[14] Shorten, R., Narendra, K. S.,
and Mason, O., “A result on common quadratic Lyapunov functions”,
IEEE Transactions on Automatic Control, Volume 48, Number 1, pp. 110-113,
January 2003 [13] Leith, D., Shorten, R.,
Leithead, W., Mason. O. and Curran, P. “Issues in the design of switched
linear systems: A benchmark study”, International Journal of Adaptive
Control and Signal Processing, Volume 17, Number 3, 2003 [12] Shorten, R. N. and Narendra,
K. S., “Necessary and sufficient conditions for the existence of a CQLF
for a finite number of stable LTI systems”,International Journal of
Adaptive Control and Signal Processing, Volume 16, Number 10, pp. 709-728,
December 2002 [11] Shorten, R. and O'Cairbre,
R., “A new methodology for the stability analysis of pairwise
triangularisable and related switching systems”, Institute of Mathematics
and its Applications: Journal of Applied Mathematics, Volume 67, Number 5, pp.
441-457, October 2002 [10] Wulff, K., Shorten, R. and
Curran, P. “On the 45 degree region and the uniform asymptotic stability
of classes of second order parameter varying and switched
systems”,International Journal of Control, 75(11),pp. 812-823, July 2002 [9] Rogers, A.,
Keating J., Shorten R.,”A novel classification scheme using the Baker's
map”, Neurocomputing, 2002 [8] Rogers, A.,
Keating J., Shorten R. and D. H. Heffernan, “Chaotic Maps and Pattern
Recognition: The XOR Problem”, Chaos, Fractals and Solitons, 14(1), pp.
57-70, 2002 [7] Shorten, R. N.
and O'Cairbre, F. “A Proof of the Global Attractivity of a Class of
Switching System using a non-quadratic Lyapunov Approach”,
Institute of Mathematics and its Applications: Journal of Control and
Information, Vol. 8, pp. 341-353, 2001 [6] T. A. Johansen,
R. Shorten and R. Murray-Smith, "On the Interpretation and Identification
of Takagi-Sugeno Fuzzy Models", IEEE Trans. Fuzzy Systems, Vol. 8, pp.
297-313, 2000 [5] Shorten, R.,
Murray-Smith, R., Bjorgan, R. and Gollee, H., “On the interpretation of
blended multiple model structures”, International Journal of Control,
vol. 72, no. 2., 1999 [4] Neumerkel, D.,
Shorten, R. and Hambrecht, A., Donne J. D., “A Neural-network Filter for
Steel Rolling Mill Control”,invited paper for International Journal of
Knowledge-Based Intelligent Engineering Systems, vol. 3, no. 1, 1999 [3] Shorten, R. and
Narendra, K., “Using Modal Analysis To Analyse The Behaviour of a class
of Hybrid System”, IEE Computing and Control Engineering Journal,
vol. 9, no. 2, 1998 [2] McDonnel, J.D.,
Shorten, R. and Fagan, A.D., “Post-Processing of Transform Coded Images
via Histogram Based Edge Classification”, SPIE Journal of Electronic
Imaging, vol. 6, no. 1, pp. 114-124, January 1997 [1] Shorten, R. and
Murray-Smith, R., “Side-effects of Basis Function Normalisation in Radial
Basis Function Networks”, in International Journal of Neural Systems,
vol. 7, no. 2, pp. 167-179, May 1996 |