MASSIMO ROMA

Associate professor


email: massimo.roma@uniroma1.it
phone: 0677274090
building: Dipartimento di Ingegneria Informatica, Automatica e Gestionale "A. Ruberti"
room: A119

Massimo Roma was born in Albano Laziale (Rome), Italy, on 1965. He received the M.S. degree in Mathematics (summa cum laude) from the University of Rome “La Sapienza” on October 1988. He received the Ph.D. degree in Operations Research from the University of Rome "La Sapienza" on October 1995. From August 1, 1996 to December 31, 2004 he was Assistant Professor of Operations Research with the Department of Computer and Systems Science "A. Ruberti" (now Department of Computer, Control, and Management Engineering) of the University of Rome "La Sapienza". From January 1, 2005 he is Associate Professor of Operations Research with the Department of Computer, Control, and Management Engineering "A. Ruberti" of the University of Rome "La Sapienza". He currently teaches courses on Operations Research in the B.S. and M.S. program in Management Engineering and in Computer Engineering with the Faculty of Engineering of the University of Rome "La Sapienza". He usually is the advisor of several Bachelor and Master degree theses. He is member of the advisory board of the Italian Research Doctorate (PhD degree) in Automatica, Bioengineering and Operations Research of the University of Rome "La Sapienza". Since April 2021 he is holder of the National Scientific Qualification for Italian Universities as Full Professor of Operations Research. His research interests concern Nonlinear Optimization, focusing on the development of methods and algorithms for the solution of nonlinear optimization problems. In particular, he provided recognized contributions both from the theoretical and the computational point of view to large scale unconstrained optimization. Other topics of the research activity regards global optimization and the solution of constrained optimization problems with a particular structure. Finally, an important aspect of his research concerns the application of optimization and simulation models for the solution of real world problems. He is author of several papers on these topics published on international journals, on edited volumes and on conference proceedings. He is the author of the section "Large scale unconstrained optimization" of the Encyclopedia of Optimization, C. Floudas, P. Pardalos (eds.), Springer, 2009. Since 1994 he takes part in several research program of national interest in the field of Nonlinear Optimization funded by the Italian Ministry of University and Research. In the years 1996-1997 he took part in the international UK-Italy (British Council-Italian Ministry of University and Research) research program "Exploiting negative curvature in large scale nonlinear programming". In the years 1997-2003 he was scientific consultant at the Institute of Systems Analysis and Computer Science (IASI) of the National Research Council (CNR) in Rome. From 1995 to 2013, he was co-organizer (with G. Di Pillo) of a series of international Workshops (held every three years), on Nonlinear Optimization in the framework of the International School of Mathematics “G. Stampacchia”, at the Center for Scientific culture "E. Majorana" in Erice (TP), Italy. He was co-editor of the proceedings of the Workshop held in 2004 published in the volume "Large Scale Nonlinear Optimization", G. Di Pillo, M. Roma (Eds.), Nonconvex Optimization and its Applications Series, vol. 83, Springer, 2006. He was co-editor of three special issues of the international journal Computational Optimization and Applications devoted to the Workshops held in 2007, 2010 and 2013. On June 2011, he was co-founder of the Academic Spin-off ACTOR - Analytics, Control Technologies and Operations Research, between SAPIENZA - University of Rome and the venture ACT Operations Research whose activities mainly concerns optimization methods and decisions support systems based on mathematical models. During 2013-2104 he took part to the project BuS-4H - Business Simulation for Healthcare, a collaborative research project (with SiliconDev LLC, University of Rome "Tor Vergata", Associazione Fatebenefratelli per la ricerca (AFaR) and SAPIENZA University of Rome) co-funded by European indirect funds through the Lazio Region of Italy (FILAS s.p.a.). He was co-author of the work "Optimal Deployment of a cruise fleet" awarded as AIRO Best Application 2015 by the Italian Operations Research Society. He was included in program commettees of national and international conferences. He is currently reviewer for several international journals (e.g. Comp. Opt. App., J. Opt. Th. App., Opt. Meth. Soft., Opt. Lett., SIAM J. Opt., 4OR).

Research products

11573/1611584 - 2023 - A simulation-based optimization approach for the calibration of a discrete event simulation model of an emergency department
De Santis, A.; Giovannelli, T.; Lucidi, S.; Messedaglia, M.; Roma, M. - 01a Articolo in rivista
paper: ANNALS OF OPERATIONS RESEARCH (Switzerland: Springer Nature Dordrecht: Kluwer Academic Publishers. Amsterdam; Bussum: Baltzer Science Publishers.) pp. 727-756 - issn: 0254-5330 - wos: WOS:000741877100002 (3) - scopus: 2-s2.0-85122828666 (2)

11573/1673345 - 2023 - A two-objective optimization of ship itineraries for a cruise company
Di Pillo, Gianni; Fabiano, Marcello; Lucidi, Stefano; Roma, Massimo - 01a Articolo in rivista
paper: 4OR (Berlin; Heidelberg: Springer.) pp. - - issn: 1619-4500 - wos: WOS:000938858800001 (0) - scopus: 2-s2.0-85148589239 (0)

11573/1684406 - 2023 - The ambulance diversion phenomenon in an emergency department network: a case study
Piermarini, Christian; Roma, Massimo - 04b Atto di convegno in volume
conference: OSD 2022 (Florence; Italy)
book: Optimization and Decision Science: Operations Research, Inclusion and Equity - (978-3-031-28862-3; 978-3-031-28863-0)

11573/1685570 - 2022 - An Improvement of the Pivoting Strategy in the Bunch and Kaufman Decomposition, Within Truncated Newton Methods
Fasano, G.; Roma, M. - 04b Atto di convegno in volume
conference: 50th International Conference on Optimization and Decision Science (ODS) (Rome)
book: Optimization in Artificial Intelligence and Data Sciences - (978-3-030-95379-9; 978-3-030-95380-5)

11573/1492511 - 2022 - Effect of different patient peak arrivals on an Emergency Department via discrete event simulation
Fava, G.; Giovannelli, T.; Messedaglia, M.; Roma, M. - 01a Articolo in rivista
paper: SIMULATION (London; San Diego Calif.: Sage Publications, Primo editore: San Diego, The Society for Computer Simulation International) pp. 161-181 - issn: 0037-5497 - wos: WOS:000691033900001 (5) - scopus: 2-s2.0-85101834326 (8)

11573/1541743 - 2021 - Determining the optimal piecewise constant approximation for the nonhomogeneous Poisson process rate of Emergency Department patient arrivals
De Santis, A.; Giovannelli, T.; Lucidi, S.; Messedaglia, M.; Roma, M. - 01a Articolo in rivista
paper: FLEXIBLE SERVICES AND MANUFACTURING JOURNAL (Norwell, MA : Springer US) pp. - - issn: 1936-6582 - wos: WOS:000627703200001 (5) - scopus: 2-s2.0-85102554303 (7)
book: arXiv:2101.11138 - ()

11573/1408726 - 2021 - Cruise itineraries optimal scheduling
Di Pillo, Gianni; Fabiano, Marcello; Lucidi, Stefano; Roma, Massimo - 01a Articolo in rivista
paper: OPTIMIZATION LETTERS (Springer Berlin Heidelberg) pp. 1665-1689 - issn: 1862-4472 - wos: WOS:000538213300001 (1) - scopus: 2-s2.0-85086121605 (1)

11573/1433827 - 2020 - A Class of Approximate Inverse Preconditioners Based on Krylov-Subspace Methods for Large-Scale Nonconvex Optimization
Al-Baali, Mehiddin; Caliciotti, Andrea; Fasano, Giovanni; Roma, Massimo - 01a Articolo in rivista
paper: SIAM JOURNAL ON OPTIMIZATION (Society for Industrial and Applied Mathematics:3600 University City Science Center:Philadelphia, PA 19104:(800)447-7426, (215)382-9800, EMAIL: service@siam.org, INTERNET: http://www.siam.org, Fax: (215)386-7999) pp. 1954-1979 - issn: 1052-6234 - wos: WOS:000576467300008 (1) - scopus: 2-s2.0-85096303027 (1)

11573/1439251 - 2020 - Issues on the use of a modified Bunch and Kaufman decomposition for large scale Newton’s equation
Caliciotti, Andrea; Fasano, Giovanni; Potra, Florian; Roma, Massimo - 01a Articolo in rivista
paper: COMPUTATIONAL OPTIMIZATION AND APPLICATIONS (Kluwer Academic Publishers / Massachusetts:PO Box 358, Accord Station:Hingham, MA 02018:(617)871-6600) pp. - - issn: 0926-6003 - wos: WOS:000570452300001 (1) - scopus: 2-s2.0-85091145903 (1)

11573/1433829 - 2020 - Iterative Grossone-Based Computation of Negative Curvature Directions in Large-Scale Optimization
De Leone, Renato; Fasano, Giovanni; Roma, Massimo; Sergeyev, Yaroslav D. - 01a Articolo in rivista
paper: JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS (Plenum Press:Book Customer Service, 233 Spring Street:New York, NY 10013:(212)620-8471, (212)620-8000, EMAIL: info@plenum.com, INTERNET: http://www.plenum.com, Fax: (212)807-1047) pp. 554-589 - issn: 0022-3239 - wos: WOS:000554316700001 (10) - scopus: 2-s2.0-85089135250 (11)

11573/1324249 - 2019 - How grossone can be helpful to iteratively compute negative curvature directions
De Leone, R.; Fasano, G.; Roma, M.; Sergeyev, Y. D. - 04b Atto di convegno in volume
conference: 12th International Conference on Learning and Intelligent Optimization, LION 12 (Kalamata; Greece)
book: Learning and Intelligent Optimization - (978-3-030-05347-5; 978-3-030-05348-2)

11573/1118740 - 2018 - Quasi-Newton based preconditioning and damped quasi-Newton schemes for nonlinear conjugate gradient methods
Al-Baali, Mehiddin; Caliciotti, Andrea; Fasano, Giovanni; Roma, Massimo - 04b Atto di convegno in volume
conference: Fourth international conference on numerical analysis and optimization: Theory, methods, applications and technology transfer (NAOIV) (Sultan Quabos University, Muscat, Oman)
book: Numerical analysis and optimization - (978-3-319-90025-4; 978-3-319-90026-1)

11573/1049329 - 2018 - Data and performance profiles applying an adaptive truncation criterion, within linesearch-based truncated Newton methods in large scale nonconvex optimization
Caliciotti, Andrea; Fasano, Giovanni; Nash, S. G.; Roma, Massimo - 01a Articolo in rivista
paper: DATA IN BRIEF (New York : Elsevier Inc.) pp. 246-255 - issn: 2352-3409 - wos: WOS:000449763000032 (9) - scopus: 2-s2.0-85041412367 (11)

11573/1024978 - 2018 - An adaptive truncation criterion, for linesearch-based truncated Newton methods in large scale nonconvex optimization
Caliciotti, Andrea; Fasano, Giovanni; Nash, Stephen G.; Roma, Massimo - 01a Articolo in rivista
paper: OPERATIONS RESEARCH LETTERS (Elsevier BV:PO Box 211, 1000 AE Amsterdam Netherlands:011 31 20 4853757, 011 31 20 4853642, 011 31 20 4853641, EMAIL: nlinfo-f@elsevier.nl, INTERNET: http://www.elsevier.nl, Fax: 011 31 20 4853598) pp. 7-12 - issn: 0167-6377 - wos: WOS:000425203900002 (12) - scopus: 2-s2.0-85034271367 (12)

11573/1013114 - 2018 - Preconditioned nonlinear conjugate gradient methods based on a modified secant equation
Caliciotti, Andrea; Fasano, Giovanni; Roma, Massimo - 01a Articolo in rivista
paper: APPLIED MATHEMATICS AND COMPUTATION (New York: Elsevier [etc.]) pp. 196-214 - issn: 0096-3003 - wos: WOS:000415905500014 (13) - scopus: 2-s2.0-85028711700 (17)

11573/968613 - 2017 - Exploiting damped techniques for nonlinear conjugate gradient methods
Al Baali, M; Caliciotti, Andrea; Fasano, Giovanni; Roma, Massimo - 01a Articolo in rivista
paper: MATHEMATICAL METHODS OF OPERATIONS RESEARCH ([Heidelberg] : Physica-Verl.) pp. 501-522 - issn: 1432-5217 - wos: WOS:000423125800005 (12) - scopus: 2-s2.0-85020081086 (12)

11573/941817 - 2017 - Novel preconditioners based on quasi–Newton updates for nonlinear conjugate gradient methods
Caliciotti, Andrea; Giovanni, Fasano; Roma, Massimo - 01a Articolo in rivista
paper: OPTIMIZATION LETTERS (Springer Berlin Heidelberg) pp. 835-853 - issn: 1862-4472 - wos: WOS:000400384200013 (14) - scopus: 2-s2.0-84978137701 (17)

11573/935557 - 2016 - Preconditioning strategies for nonlinear conjugate gradient methods, based on quasi-Newton updates
Caliciotti, Andrea; Fasano, Giovanni; Roma, Massimo - 04b Atto di convegno in volume
conference: 2nd International Conference on Numerical Computations: Theory and Algorithms, NUMTA 2016 (Pizzo Calabro, Italy)
book: Numerical computations: theory and algorithms (NUMTA–2016). Proceedings of the 2nd international conference “Numerical computations: theory and agorithms” - (9780735414389)

11573/818717 - 2016 - A novel class of approximate inverse preconditioners for large positive definite linear systems in optimization
Giovanni, Fasano; Roma, Massimo - 01a Articolo in rivista
paper: COMPUTATIONAL OPTIMIZATION AND APPLICATIONS (Kluwer Academic Publishers / Massachusetts:PO Box 358, Accord Station:Hingham, MA 02018:(617)871-6600) pp. 399-429 - issn: 0926-6003 - wos: WOS:000385183100005 (7) - scopus: 2-s2.0-84934784427 (7)

11573/807074 - 2016 - A derivative-free approach for a simulation-based optimization problem in healthcare
Lucidi, Stefano; Maurici, Massimo; Paulon, Luca; Rinaldi, Francesco; Roma, Massimo - 01a Articolo in rivista
paper: OPTIMIZATION LETTERS (Springer Berlin Heidelberg) pp. 219-235 - issn: 1862-4472 - wos: WOS:000369946200002 (13) - scopus: 2-s2.0-84957442907 (17)

11573/935534 - 2016 - A simulation-based multiobjective optimization approach for health care service management
Lucidi, Stefano; Maurici, Massimo; Paulon, Luca; Rinaldi, Francesco; Roma, Massimo - 01a Articolo in rivista
paper: IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING (New York : Institute of Electrical and Electronics Engineers, c2004-) pp. 1480-1491 - issn: 1545-5955 - wos: WOS:000385723800008 (18) - scopus: 2-s2.0-84992104267 (22)

11573/643794 - 2013 - Analyzing the main and the second order effects of operational policies on the warehouse productivity
A., Huerta; S., Brizi; M., Elizondo; Roma, Massimo - 04b Atto di convegno in volume
conference: 2013 Winter Simulation Conference (Washington, D.C, USA)
book: Proceedings of the 2013 Winter Simulation Conference: Simulation: Making Decisions in a Complex World - (9781479920778)

11573/220315 - 2013 - Preconditioning Newton-Krylov methods in nonconvex large scale optimization
Giovanni, Fasano; Roma, Massimo - 01a Articolo in rivista
paper: COMPUTATIONAL OPTIMIZATION AND APPLICATIONS (Kluwer Academic Publishers / Massachusetts:PO Box 358, Accord Station:Hingham, MA 02018:(617)871-6600) pp. 253-290 - issn: 0926-6003 - wos: WOS:000324331300001 (19) - scopus: 2-s2.0-84884820841 (20)

11573/509936 - 2012 - Quasi-Newton Updates for Preconditioned Nonlinear Conjugate Gradient Methods
G., Fasano; Roma, Massimo - 02a Capitolo o Articolo
book: Recent Advances in Nonlinear Optimization and Equilibrium Problems: a tribute to Marco D'Apuzzo - (9788854856875)

11573/481940 - 2012 - Preconditioning Large Indefinite Linear Systems
Giovanni, Fasano; Roma, Massimo - 01a Articolo in rivista
paper: MAGALLAT GAMI'AT AL-SULTAN QABUS LI-L-BUHUT AL-'ILMIYYAT AL-'ULUM WA-AL-HANDASAT (Masqat: Gami’at al-Sultān Qābūs) pp. 63-79 - issn: 1027-524X - wos: (0) - scopus: (0)

11573/149340 - 2009 - LARGE SCALE UNCONSTRAINED OPTIMIZATION
Roma, Massimo - 02a Capitolo o Articolo
book: ENCYCLOPEDIA OF OPTIMIZATION - (9780387747583; 9780387747590)

11573/46936 - 2007 - Iterative computation of negative curvature directions in large scale optimization
Giovanni, Fasano; Roma, Massimo - 01a Articolo in rivista
paper: COMPUTATIONAL OPTIMIZATION AND APPLICATIONS (Kluwer Academic Publishers / Massachusetts:PO Box 358, Accord Station:Hingham, MA 02018:(617)871-6600) pp. 81-104 - issn: 0926-6003 - wos: WOS:000248607700006 (17) - scopus: 2-s2.0-34547592106 (17)

11573/394969 - 2006 - AN APPROXIMATE INVERSE PRECONDITIONER IN TRUNCATED NEWTON METHODS FOR LARGE SCALE OPTIMIZATION
G., Fasano; Roma, Massimo - 01a Articolo in rivista
paper: COMMUNICATIONS TO SIMAI CONGRESS (Roma : SIMAI) pp. 1-3 - issn: 1827-9015 - wos: (0) - scopus: (0)

11573/44732 - 2005 - Dynamic scaling based preconditioning for truncated Newton methods in large scale unconstrained optimization
Roma, Massimo - 01a Articolo in rivista
paper: OPTIMIZATION METHODS & SOFTWARE (Basingstoke, United Kingdom: Taylor & Francis Limited Reading: Gordon & Breach Science Publishers) pp. 693-713 - issn: 1055-6788 - wos: WOS:000234138300005 (11) - scopus: 2-s2.0-29744436841 (10)

11573/254855 - 2000 - EXPLOITING NEGATIVE CURVATURE DIRECTIONS IN LINESEARCH METHODS FOR UNCONSTRAINED OPTIMIZATION
Gould, N.; Lucidi, Stefano; Roma, Massimo; Toint, P. - 01a Articolo in rivista
paper: OPTIMIZATION METHODS & SOFTWARE (Basingstoke, United Kingdom: Taylor & Francis Limited Reading: Gordon & Breach Science Publishers) pp. 75-98 - issn: 1055-6788 - wos: WOS:000165321100005 (31) - scopus: 2-s2.0-0034450431 (32)

11573/245366 - 1999 - SOLVING THE TRUST-REGION SUBPROBLEM USING THE LANCZOS METHOD
Gould, N.; Lucidi, Stefano; Roma, Massimo; Toint, P. - 01a Articolo in rivista
paper: SIAM JOURNAL ON OPTIMIZATION (Society for Industrial and Applied Mathematics:3600 University City Science Center:Philadelphia, PA 19104:(800)447-7426, (215)382-9800, EMAIL: service@siam.org, INTERNET: http://www.siam.org, Fax: (215)386-7999) pp. 504-525 - issn: 1052-6234 - wos: WOS:000079854000011 (190) - scopus: 2-s2.0-0033437435 (191)

11573/246539 - 1998 - A CONTROLLED RANDOM SEARCH ALGORITHM WITH LOCAL NEWTON-TYPE SEARCH FOR GLOBAL OPTIMIZATION
Di Pillo, Gianni; Lucidi, Stefano; Palagi, Laura; Roma, Massimo - 02a Capitolo o Articolo
book: HIGH PERFORMANCE ALGORITHM AND SOFTWARE IN NONLINEAR OPTIMIZATION - ()

11573/246121 - 1998 - A LINESEARCH ALGORITHM WITH MEMORY FOR UNCONSTRAINED OPTIMIZATION
Gould, N.; Lucidi, Stefano; Roma, Massimo; Toint, P. - 02a Capitolo o Articolo
book: HIGH PERFORMANCE ALGORITHMS AND SOFTWARE IN NONLINEAR OPTIMIZATION - ()

11573/246427 - 1998 - ON SOME PROPERTIES OF QUADRATIC PROGRAMS WITH A CONVEX QUADRATIC CONSTRAINT
Lucidi, Stefano; Palagi, Laura; Roma, Massimo - 01a Articolo in rivista
paper: SIAM JOURNAL ON OPTIMIZATION (Society for Industrial and Applied Mathematics:3600 University City Science Center:Philadelphia, PA 19104:(800)447-7426, (215)382-9800, EMAIL: service@siam.org, INTERNET: http://www.siam.org, Fax: (215)386-7999) pp. 105-122 - issn: 1052-6234 - wos: WOS:000071938800005 (26) - scopus: 2-s2.0-0032326764 (34)

11573/257186 - 1998 - CURVILINEAR STABILIZATION TECHNIQUES FOR TRUNCATED NEWTON METHODS IN LARGE SCALE UNCONSTRAINED OPTIMIZATION
Lucidi, Stefano; Rochetich, F.; Roma, Massimo - 01a Articolo in rivista
paper: SIAM JOURNAL ON OPTIMIZATION (Society for Industrial and Applied Mathematics:3600 University City Science Center:Philadelphia, PA 19104:(800)447-7426, (215)382-9800, EMAIL: service@siam.org, INTERNET: http://www.siam.org, Fax: (215)386-7999) pp. 916-939 - issn: 1052-6234 - wos: WOS:000075852000003 (37) - scopus: 2-s2.0-0032327057 (37)

11573/16168 - 1997 - Numerical Experiences with New Truncated Newton Methods in Large Scale Unconstrained Optimization
Roma, Massimo; Lucidi, Stefano - 01a Articolo in rivista
paper: COMPUTATIONAL OPTIMIZATION AND APPLICATIONS (Kluwer Academic Publishers / Massachusetts:PO Box 358, Accord Station:Hingham, MA 02018:(617)871-6600) pp. 71-87 - issn: 0926-6003 - wos: WOS:A1997XT39000005 (10) - scopus: 2-s2.0-0030672155 (10)

11573/247336 - 1996 - NONMONOTONE CURVILINEAR LINE SEARCH METHODS FOR UNCONSTRAINED OPTIMIZATION
Ferris, M. C.; Roma, Massimo; Lucidi, Stefano - 01a Articolo in rivista
paper: COMPUTATIONAL OPTIMIZATION AND APPLICATIONS (Kluwer Academic Publishers / Massachusetts:PO Box 358, Accord Station:Hingham, MA 02018:(617)871-6600) pp. 117-136 - issn: 0926-6003 - wos: (0) - scopus: 2-s2.0-0030243966 (25)

11573/151754 - 1995 - A Modified Truncated Newton Method Which Uses Negative Curvature Directions for Large Scale Unconstrained Problems
Lucidi, Stefano; Rochetich, F.; Roma, Massimo - 02a Capitolo o Articolo
book: Operations Research Proceedings 1994 - (9783540587934)

11573/149109 - 1994 - Nonmonotone Conjugate Gradient Methods for Optimization
Lucidi, Stefano; Roma, Massimo - 02a Capitolo o Articolo
book: System Modelling and Optimization - (9783540198932)

11573/19403 - 1990 - Stochastic regularization of linear equations and the realization of Gaussian fields
Piccioni, Mauro; Roma, Massimo - 01a Articolo in rivista
paper: JOURNAL OF MULTIVARIATE ANALYSIS (Academic Press Incorporated:6277 Sea Harbor Drive:Orlando, FL 32887:(800)543-9534, (407)345-4100, EMAIL: ap@acad.com, INTERNET: http://www.idealibrary.com, Fax: (407)352-3445) pp. 143-150 - issn: 0047-259X - wos: WOS:A1990DB57100009 (1) - scopus: 2-s2.0-45149136805 (1)

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