A/Prof. Julien Ugon

STAFF PROFILE

Position

Associate Professor

Faculty

Faculty of Sci Eng & Built Env

Department

School of Info Technology

Campus

Melbourne Burwood Campus

Qualifications

Doctor of Philosophy, University of Ballarat, 2005

Contact

julien.ugon@deakin.edu.au
+61 3 924 46311

Research interests

  • Nonsmooth optimisation
  • Optimisation algorithms
  • Generalised convexity
  • Applications of optimisation to approximation theory

Teaching interests

  • Student Agency
  • Mastery-based learning

Publications

Filter by

2024

Uniqueness of solutions in multivariate Chebyshev approximation problems

Vera Roshchina, Nadezda Sukhorukova, Julien Ugon

(2024), Vol. 18, pp. 33-55, Optimization Letters, Berlin, Germany, C1

journal article

The linkedness of cubical polytopes: Beyond the cube

H Bui, G Pineda-Villavicencio, J Ugon

(2024), Vol. 347, pp. 1-17, Discrete Mathematics, Amsterdam, The Netherlands, C1

journal article
2023

Approximate Douglas-Rachford algorithm for two-sets convex feasibility problems

R Díaz Millán, O Ferreira, J Ugon

(2023), Vol. 86, pp. 621-636, Journal of Global Optimization, C1

journal article

Structural-functional connectivity bandwidth predicts processing speed in mild traumatic brain Injury: A multiplex network analysis

N Parsons, A Irimia, A Amgalan, J Ugon, K Morgan, S Shelyag, A Hocking, G Poudel, K Caeyenberghs

(2023), Vol. 38, pp. 1-13, NeuroImage: Clinical, Amsterdam, The Netherlands, C1

journal article

Edge connectivity of simplicial polytopes

V Pilaud, G Pineda-Villavicencio, J Ugon

(2023), Vol. 113, pp. 1-9, European Journal of Combinatorics, Amsterdam, The Netherlands, C1

journal article

Applications and issues in abstract convexity

R Diaz Millan, N Sukhorukova, J Ugon

(2023), Vol. 2023, pp. 1-16, Communications in Optimization Theory, London, Eng., C1

journal article
2022

A generalisation of de la Vallée-Poussin procedure to multivariate approximations

N Sukhorukova, J Ugon

(2022), Vol. 48, pp. 1-19, Advances in Computational Mathematics, Berlin, Germany, C1

journal article

Supernodes: a generalization of the rich-club

Su Chan, Kerri Morgan, Nicholas Parsons, Julien Ugon

(2022), Vol. 10, pp. 1-18, Journal of Complex Networks, Oxford, Eng., C1

journal article

An Algorithm for Best Generalised Rational Approximation of Continuous Functions

R Millán, N Sukhorukova, J Ugon

(2022), Set-Valued and Variational Analysis, Berlin, Germany, C1

journal article

Multivariate approximation by polynomial and generalized rational functions

R Díaz Millán, V Peiris, N Sukhorukova, J Ugon

(2022), Vol. 71, pp. 1171-1187, Optimization, London, Eng., C1

journal article

Linkedness of Cartesian products of complete graphs

L Jørgensen, G Pineda-Villavicencio, J Ugon

(2022), Vol. 22, pp. 1-10, Ars Mathematica Contemporanea, Ljubljana, Slovenia, C1

journal article

Minimum Number of Edges of Polytopes with 2d + 2 Vertices

G Pineda-Villavicencio, J Ugon, D Yost

(2022), Vol. 29, Electronic Journal of Combinatorics, C1

journal article

Structural-Functional Connectivity Bandwidth of the Human Brain

Nicholas Parsons, Julien Ugon, Kerri Morgan, Sergiy Shelyag, Alex Hocking, Su Chan, Govinda Poudel, Juan Domìnguez D, Karen Caeyenberghs

(2022), Vol. 263, pp. 1-12, NeuroImage, Amsterdam, The Netherlands, C1

journal article
2021

Chebyshev Multivariate Polynomial Approximation and Point Reduction Procedure

N Sukhorukova, J Ugon, D Yost

(2021), Vol. 53, pp. 529-544, Constructive Approximation, C1

journal article

Generalised rational approximation and its application to improve deep learning classifiers

V Peiris, N Sharon, N Sukhorukova, J Ugon

(2021), Vol. 389, Applied Mathematics and Computation, C1

journal article

Bivariate rational approximations of the general temperature integral

A Aghili, N Sukhorukova, J Ugon

(2021), Vol. 59, pp. 2049-2062, Journal of Mathematical Chemistry, C1

journal article

The linkedness of cubical polytopes: The cube

H Bui, G Pineda-Villavicencio, J Ugon

(2021), Vol. 28, Electronic Journal of Combinatorics, C1

journal article

Mathematics Yearbook 2021

Simon James, Kerri Morgan, Julien Ugon

(2021), Burwood, VIC, Australia, A7

edited book

Hydrogen bus route planning in regional Victoria

R Esmaeilbeigi, V Mak-Hau, G Pineda-Villavicencio, J Ugon

(2021), pp. 757-763, MODSIM 2023 : Proceedings of the 24th International Congress on Modelling and Simulation, Sydney, N.S.W., E1

conference
2020

Schur Functions for Approximation Problems

Nadezda Sukhorukova, Julien Ugon, David Yost

(2020), pp. 331-337, 2018 MATRIX Annals, Berlin, Germany, B1

book chapter

Polytopes Close to Being Simple

G Pineda-Villavicencio, J Ugon, D Yost

(2020), Vol. 64, pp. 200-215, Discrete and Computational Geometry, C1

journal article

Almost Simplicial Polytopes: The Lower and Upper Bound Theorems

E Nevo, G Pineda-Villavicencio, J Ugon, D Yost

(2020), Vol. 72, pp. 537-556, Canadian Journal of Mathematics, C1

journal article

Finite Alternation Theorems and a Constructive Approach to Piecewise Polynomial Approximation in Chebyshev Norm

J Crouzeix, N Sukhorukova, J Ugon

(2020), Vol. 28, pp. 123-147, Set-Valued and Variational Analysis, C1

journal article
2019

On the reconstruction of polytopes

J Doolittle, E Nevo, G Pineda-Villavicencio, J Ugon, D Yost

(2019), Vol. 61, pp. 285-302, Discrete and computational geometry, New York, N.Y., C1

journal article

Lower bound theorems for general polytopes

G Pineda-Villavicencio, J Ugon, D Yost

(2019), Vol. 79, pp. 27-45, European journal of combinatorics, Amsterdam, The Netherlands, C1

journal article

Balancing and reconciling large multi-regional input-output databases using parallel optimisation and high-performance computing

A Geschke, J Ugon, M Lenzen, K Kanemoto, D Moran

(2019), Vol. 8, pp. 1-24, Journal of economic structures, Berlin, Germany, C1

journal article

Connectivity of cubical polytopes

Hoa Bui, Guillermo Pineda-Villavicencio, Julien Ugon

(2019), Vol. 169, JOURNAL OF COMBINATORIAL THEORY SERIES A, C1

journal article
2018

Nonsmooth DC programming approach to clusterwise linear regression: optimality conditions and algorithms

A Bagirov, J Ugon

(2018), Vol. 33, pp. 194-219, Optimization methods and software, Abingdon, Eng., C1-1

journal article

The excess degree of a polytope

G Pineda-Villavicencio, J Ugon, D Yost

(2018), Vol. 32, pp. 2011-2046, SIAM journal on discrete mathematics, Philadelphia, Pa., C1

journal article

Detection of outlier behaviour amongst health/medical providers servicing TAC clients

M Mammadov, R Muspratt, J Ugon

(2018), Vol. 845, pp. 161-172, AusDM 2017 : Proceedings of the 15th Australasian Conference on Data Mining 2017, Melbourne, Vic., E1-1

conference
2017

Characterisation theorem for best polynomial spline approximation with free knots

N Sukhorukova, J Ugon

(2017), Vol. 369, pp. 6389-6405, Transactions of the American Mathematical Society, Providence, R.I., C1-1

journal article

Characterization theorem for best polynomial spline approximation with free knots, variable degree and fixed tails

J Crouzeix, N Sukhorukova, J Ugon

(2017), Vol. 172, pp. 950-964, Journal of optimization theory and applications, New York, N.Y., C1-1

journal article

Pixel N-grams for mammographic lesion classification

P Kulkarni, A Stranieri, J Ugon, M Mittal, S Kulkarni

(2017), pp. 107-111, CSCITA 2017 2nd International Conference on Communication Systems, Computing and IT Applications, CSCITA 2017 - Proceedings, Mumbai, India, E1-1

conference

An agile group aware process beyond CRISP-DM: a hospital data mining case study

V Sharma, A Stranieri, J Ugon, P Vamplew, L Martin

(2017), pp. 109-113, ICCDA '17 : Proceedings of the 2017 International Conference on Compute and Data Analysis, Lakeland, Fla., E1-1

conference
2016

Nonsmooth DC programming approach to the minimum sum-of-squares clustering problems

A Bagirov, S Taheri, J Ugon

(2016), Vol. 53, pp. 12-24, Pattern recognition, Amsterdam, The Netherlands, C1-1

journal article

Chebyshev approximation by linear combinations of fixed knot polynomial splines with weighting functions

N Sukhorukova, J Ugon

(2016), Vol. 171, pp. 536-549, Journal of optimization theory and applications, New York, N.Y., C1-1

journal article
2015

Patient admission prediction using a pruned fuzzy min-max neural network with rule extraction

J Wang, C Lim, D Creighton, A Khorsavi, S Nahavandi, J Ugon, P Vamplew, A Stranieri, L Martin, A Freischmidt

(2015), Vol. 26, pp. 277-289, Neural computing and applications, Berlin, Germany, C1

journal article

Global optimality conditions and optimization methods for polynomial programming problems

Z Wu, J Tian, J Ugon

(2015), Vol. 62, pp. 617-641, Journal of global optimization, Cham, Switzerland, C1-1

journal article

Global optimality conditions and optimization methods for constrained polynomial programming problems

Z Wu, J Tian, J Ugon, L Zhang

(2015), Vol. 262, pp. 312-325, Applied mathematics and computation, Amstermdam, The Netherlands, C1-1

journal article

Nonsmooth optimization algorithm for solving clusterwise linear regression problems

A Bagirov, J Ugon, H Mirzayeva

(2015), Vol. 164, pp. 755-780, Journal of optimization theory and applications, Cham, Switzerland, C1-1

journal article

An algorithm for clusterwise linear regression based on smoothing techniques

A Bagirov, J Ugon, H Mirzayeva

(2015), Vol. 9, pp. 375-390, Optimization letters, New York, N.Y., C1-1

journal article
2014

Piecewise linear classifiers based on nonsmooth optimization approaches

A Bagirov, R Kasimbeyli, G Öztürk, J Ugon

(2014), pp. 1-32, Optimization in science and engineering : in honor of the 60th birthday of Panos M. Pardalos, New York, N.Y., B1-1

book chapter

Compiling and using input-output frameworks through collaborative virtual laboratories

M Lenzen, A Geschke, T Wiedmann, J Lane, N Anderson, T Baynes, J Boland, P Daniels, C Dey, J Fry, M Hadjikakou, S Kenway, A Malik, D Moran, J Murray, S Nettleton, L Poruschi, C Reynolds, H Rowley, J Ugon, D Webb, J West

(2014), Vol. 485-486, pp. 241-251, Science of the total environment, Amsterdam, The Netherlands, C1-1

journal article

Optimality conditions and optimization methods for quartic polynomial optimization

Z Wu, J Tian, J Quan, J Ugon

(2014), Vol. 232, pp. 968-982, Applied mathematics and computation, Amsterdam, The Netherlands, C1-1

journal article
2013

Nonsmooth nonconvex optimization approach to clusterwise linear regression problems

A Bagirov, J Ugon, H Mirzayeva

(2013), Vol. 229, pp. 132-142, European journal of operational research, Amsterdam, The Netherlands, C1-1

journal article
2012

A modified parallel optimization system for updating large-size time-evolving flow matrix

T Yu, J Ugon, W Yu

(2012), Vol. 194, pp. 57-67, Information sciences, Amsterdam, The Netherlands, C1-1

journal article
2011

Detecting K-complexes for sleep stage identification using nonsmooth optimisation

D Moloney, N Sukhorukova, P Vamplew, J Ugon, G Li, G Beliakov, C Philippe, H Amiel, A Ugon

(2011), Vol. 52, pp. 319-332, ANZIAM Journal, Cambridge, England, C1

journal article

An efficient algorithm for the incremental construction of a piecewise linear classifier

A Bagirov, J Ugon, D Webb

(2011), Vol. 36, pp. 782-790, Information systems, Amsterdam, The Netherlands, C1-1

journal article

Classification through incremental max-min separability

A Bagirov, J Ugon, D Webb, B Karasözen

(2011), Vol. 14, pp. 165-174, Pattern analysis and applications, Berlin, Germany, C1-1

journal article

Fast modified global k-means algorithm for incremental cluster construction

A Bagirov, J Ugon, D Webb

(2011), Vol. 44, pp. 866-876, Pattern recognition, Amsterdam, The Netherlands, C1-1

journal article

Codifferential method for minimizing nonsmooth DC functions

A Bagirov, J Ugon

(2011), Vol. 50, pp. 3-22, Journal of Global Optimization, Lima, PERU, E1-1

conference
2010

A generalized subgradient method with piecewise linear subproblem

A Bagirov, A Nazari Ganjehlou, H Tor, J Ugon

(2010), Vol. 17, pp. 621-638, Dynamics of continuous, discrete and impulsive systems series B: applications and algorithms, Waterloo, Canada, C1-1

journal article

Characterization theorem for best linear spline approximation with free knots

N Sukhorukova, J Ugon

(2010), Vol. 17, pp. 687-708, Dynamics of continuous, discrete and impulsive systems series B: applications and algorithms, Waterloo, Ont., C1-1

journal article

The choice of a similarity measure with respect to its sensitivity to outliers

A Rubinov, N Sukhorukova, J Ugon

(2010), Vol. 17, pp. 709-721, Dynamics of continuous, discrete and impulsive systems series B: applications and algorithms, Waterloo, Ont., C1-1

journal article
2007

Implementation of novel methods of global and nonsmooth optimization: GANSO programming library

G Beliakov, J Ugon

(2007), Vol. 56, pp. 543-546, Optimization, Abingdon, England, C1

journal article

Facility location via continuous optimization with discontinuous objective functions

J Ugon, S Kouhbor, M Mammadov, A Rubinov, A Kruger

(2007), Vol. 48, pp. 315-325, ANZIAM journal, Cambridge, Eng., C1-1

journal article
2006

Piecewise partially separable functions and a derivative-free algorithm for large scale nonsmooth optimization

A Bagirov, J Ugon

(2006), Vol. 35, pp. 163-195, Journal of global optimization, Cham, Switzerland, C1-1

journal article

Classes and clusters in data analysis

A Rubinov, N Soukhorokova, J Ugon

(2006), Vol. 173, pp. 849-865, European journal of operational research, Amsterdam, The Netherlands, C1-1

journal article

Coverage in WLAN: Optimization model and algorithm

S Kouhbor, J Ugon, M Mammadov, A Rubinov, A Kruger

(2006), pp. 302-307, AusWireless '06 : 1st International Conference, Sydney 13-16 March, 2006., Sydney, N.S.W., E1-1

conference

Coverage in WLAN with minimum number of access points

S Kouhbor, J Ugon, A Rubinov, A Kruger, M Mammadov

(2006), Vol. 3, pp. 1166-1170, IEEE Vehicular Technology Conference, Melbourne, AUSTRALIA, E1-1

conference
2005

An algorithm for minimizing clustering functions

A Bagirov, J Ugon

(2005), Vol. 54, pp. 351-368, Optimization, C1-1

journal article

Optimal placement of access point in WLAN based on a new algorithm

S Kouhbor, J Ugon, A Kruger, A Rubinov

(2005), pp. 592-598, 4th Annual International Conference on Mobile Business, ICMB 2005, Sydney, AUSTRALIA, E1-1

conference

A new algorithm for the placement of WLAN access points based on nonsmooth optimization technique

S Kouhbor, J Ugon, A Kruger, A Rubinov, P Branch

(2005), Vol. 1, pp. 352-357, The 7th International Conference on Advanced Communication Technology, ICACT 2005, Phoenix Pk, SOUTH KOREA, E1-1

conference

Funded Projects at Deakin

Australian Competitive Grants

An optimisation-based framework for non-classical Chebyshev approximation

A/Prof Julien Ugon, Prof Marco Lopez-Cerda, Dr Nadezda Sukhorukova, Dr Vera Roshchina, Prof Jean-Pierre Crouzeix, Prof Nira Dyn

ARC - Discovery Projects

  • 2024: $493
  • 2020: $96,850
  • 2019: $103,067
  • 2018: $123,626

Industry and Other Funding

The metastatic paradox of transmissible cancers

A/Prof Beata Ujvari, Dr Matthew McKenzie, Dr Musa Mammadov, A/Prof Julien Ugon

University of Tasmania - Tasmanian Devil Grant 2023

  • 2024: $49,700

Supervisions

Principal Supervisor
2024

Su Yuan Chan

Thesis entitled: Counting, Reducing, and Analysing Graphs: Techniques and Applications

Doctor of Philosophy (Information Technology), School of Information Technology