Valeria Leggieri Curriculum Vitae Last update: April 2012 Personal data Name and surname Date and place of birth Citizenship E-mail Valeria Leggieri 17 May 1979, Lecce (Italy) Italian leggierivaleria@gmail.com Academic degrees PhD in Mathematics 20 April 2007 Department of Mathematics E. De Giorgi, Università del Salento, Lecce (Italy) PhD thesis: Multicast problems in telecommunication networks Corso di perfezionamento in Finanza Matematica 15 May 2004 Faculty of Economics, Università degli Studi di Lecce Laurea in Matematica 24 July 2003 Università degli Studi di Lecce Thesis: Sul problema di Dirichlet per il funzionale dell area Employment Record March 2004 - February 2007 October 2007 - September 2010 October 2010 - today Ph.D Student at the Department of Mathematics E. De Giorgi, Università degli Studi di Lecce, Italy. Contract researcher ( Titolare di assegno di ricerca ) at the Department of Mathematics E. De Giorgi, Università del Salento, Lecce, Italy. at Free University of Bozen-Bolzano, Italy.
Research Interests Operations research and management science Mixed integer programming Combinatorial Optimization Network design Applications of design theory See the attached list of publications. Visiting researcher July 2005 Sept Dec 2006 January 2007 Dec 2008 Feb 2009 IDSIA - Istituto Della Molle di Studi sulla Intelligenza Artificiale Lugano (Switzerland). CORE Center for Operations Research & Econometrics Université Catholique de Louvain (Belgium). Sponsored by European Union via the project ADONET (Algorithmic Discrete Optimization Network). Ecole Polytecnique de Tunisie, Tunis (Tunisia). IDSIA - Istituto Della Molle di Studi sulla Intelligenza Artificiale Lugano (Switzerland). Sponsored by Regione Puglia (POR Puglia 2000-2006 - Misura 3.12 - C.1). Participation at research projects 2004 2005 Component of the research group of the national project Optimization, simulation and complexity in the project and the management of telecommunication networks (Italian Ministry of Research, PRIN 2003). 2007 2008 Cooperation with the project Sviluppo di pacchetti software per modelli matematici per i mercati basati sul paradigma aste (DEIS, Università della Calabria, Italy). Attended Courses and Summer Schools July 2005 August 2006 ADONET/CIM Summer School on Algebraic and Geometric Approaches on Integer Programming, Lisbona (Portugal). Euro Summer Institute 2006 on Optimization Challenges in Engineering: Methods, Software and Applications, Lutherstadt Wittenberg (Germany). September 2006 CORE Lecture Series on Mixed Integer Nonlinear Programming, held by Prof. R. Weismantel, Université Catholique de Louvain (Belgium). June 2008 October 2008 Advanced Course on Discrete Optimization, held by Prof. E. Balas, Scuola Superiore Santa Chiara, Siena (Italy). Special Semester on Stochastics with Emphasis on Finance, Johann Radon Institute for Computational and Applied Mathematics, Linz (Austria). Valeria Leggieri - Curriculum vitae Page 2
List of publications Papers in refereed international journals 1. R. MONTEMANNI, V. LEGGIERI, C. TRIKI, Mixed integer formulations for the probabilistic minimum energy broadcast in wireless network. European Journal of Operational Research, 190 (2008), no. 2, 578-585. 2. V. LEGGIERI, P. NOBILI, C. TRIKI, Minimum power multicasting problem in wireless network. Mathematical Methods of Operations Research, 68 (2008), no. 2, 295-311. 3. V. LEGGIERI, Multicast problems in telecommunication networks. 4OR: A Quarterly Journal of Operations Research, 7 (2009), no. 1, 105-108. 4. J. BARTA, V. LEGGIERI, R. MONTEMANNI, P. NOBILI, C. TRIKI, Some valid inequalities for the probabilistic minimum power multicasting problem. Electronic Notes in Discrete Mathematics, 36 (2010), 463 470. 5. V. LEGGIERI, M. HAOUARI, C. TRIKI, An exact algorithm for the Steiner tree problem with delays. Electronic Notes in Discrete Mathematics, 36 (2010), 223 230. 6. R. MONTEMANNI, V. LEGGIERI, An exact algorithm for the minimum power multicasting problem in wireless sensor networks. Electronic Notes in Discrete Mathematics, 36 (2010), 215 222. 7. J. BARTA, V. LEGGIERI, R. MONTEMANNI, P. NOBILI, C. TRIKI, Minimum power multicasting in wireless networks under probabilistic node failures. Computational Optimization and Applications, 49 (2011), no. 1, 193 212. 8. V. LEGGIERI, R. MONTEMANNI, A branch and price algorithm for the minimum power multicasting problem in wireless sensor networks, Mathematical Methods of Operations Research, 74 (2011), 327 342. 9. V. LEGGIERI, S. OPREA, C. TRIKI, Reduction techniques for the minimum power multicasting problem in wireless networks. Journal of Applied Sciences, 11 (2011), 731 736. 10. V. LEGGIERI, M. HAOUARI, S. LAYEB, C. TRIKI, The Steiner tree problem with delays: a compact formulation and reduction procedures. Discrete Applied Mathematics, in press, 2011. Doi:10.1016/j.dam.2011.07.008. 11. V. LEGGIERI, M. HAOUARI, C. TRIKI, Branch and cut algorithm for the Steiner tree problem with delays, Optimization Letters, in press, 2011. Doi: 10.1007/s11590-011-0368-1. Other publications 1. V. Leggieri. Multicast problems in telecommunication networks. PhD thesis in Mathematics, Department of Mathematics E. De Giorgi, Università degli Studi di Lecce, 2007. 154 pages. Valeria Leggieri - Curriculum vitae Page 3
Scientific Communications Invited Talks 1. Minimum power multicasting problem in wireless ad-hoc network, CORE, Université Catholique de Louvain (Belgium), 27 September 2006. 2. Minimum power multicasting problem: relation with the Steiner arborescence problem and some valid inequalities, Ecole polytecnique de Tunisie (Tunisia), 24 January 2007. 3. Minimum Steiner tree problem with delays, IDSIA, Lugano (Switzerland), 11 February 2009. Contributed Talks 1. On the solution of the minimum power multicasting problem with the set covering techniques, Workshop Advances in Telecommunication Networks Optimization, Como (Italy), May 2006. 2. The minimum power multicasting problem in wireless networks, 21st European Conference on Operational Research, Reykjavík (Iceland), 2 5 July 2006. 3. A set covering formulation for the minimum power multicasting problem in wireless ad-hoc networks, Euro Summer Institute 2006 on Optimization Challenges in Engineering: Methods, Software and Applications, Lutherstadt Wittenberg (Germany), 18 August - 2 September 2006. 4. Mixed integer formulations for the probabilistic minimum energy broadcast in wireless networks, 11th Conference on Stochastic Programming, Vienna, (Austria), 27-31 August 2007. 5. Mathematical models for the multicasting problem in wireless networks, XXVIII Annual Conference of Italian Operational Research Society (AIRO 2007), Genova (Italy), 5-8 September 2007. 6. Multicast problems in telecommunication networks Ph.D. Session, XXXVIII Annual Conference of Italian Operational Research Society (AIRO 2007), Genova (Italy), 5-8 September 2007. 7. The STP with delays: formulation and reduction procedures. XXXIX Annual Conference of Italian Operational Research Society (AIRO 2008), Ischia (Italy), 8-11 September 2008. 8. Minimum power multicast in wireless networks under probabilistic node failures. XXXIX Annual Conference of Italian Operational Research Society (AIRO 2008), Ischia (Italy), 8-11 September 2008. 9. Wireless multicasting under probabilistic node failures: a heuristic approach. XL Annual Conference of the Italian Operational Research Society (AIRO 2009), Siena (Italy), 8-11 September 2009. 10. Minimum power multicasting in wireless sensor networks via paths ranking. XL Annual Conference of the Italian Operational Research Society (AIRO 2009), Siena (Italy), 8-11 September 2009. 11. An exact algorithm for the Steiner tree problem with delays. ISCO: International Symposium on Combinatorial Optimization, Hammamet (Tunisia), 24-26 March 2010. 12. An exact algorithm for the minimum power multicasting problem in wireless sensor networks. ISCO: International Symposium on Combinatorial Optimization, Hammamet (Tunisia), 24-26 March 2010. 13. Some valid inequalities for the probabilistic minimum power multicasting problem. ISCO: International Symposium on Combinatorial Optimization, Hammamet (Tunisia), 24-26 March 2010. Valeria Leggieri - Curriculum vitae Page 4
Teaching experience a.y. 2007/08 a.y. s 2007/08 2009/2010 a.y. 2008/09 2009/2010 a.y. 2009/10 a.y. 2010/11 a.y. 2010/11 a.y. 2011/12 a.y. 2011/12 Calculus, Probability and Statistics Audience: Bachelor students in Biotechnology (Faculty of Science, Università del Methods and Models for Logistics Audience: Bachelor students in Mathematics (Faculty of Science, Università del Mathematics, Statistics and Informatics Audience: Bachelor students in Biotechnology (Faculty of Science, Università del Contract Professor Operations Research I Audience: Bachelor students in Engineering (Faculty of Engineering, Università del Biomathematics and biostatistics Audience: Master students in Fruit Science (Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy) Official teaching language: English ( Esercitatore ) Analysis Audience: Bachelor students in Computer Science and Engineering (Faculty of Computer Science, Free University of Bozen-Bolzano, Bolzano, Italy) Official teaching language: English Mathematical Analysis I Audience: Bachelor in Industrial and Mechanical Engineering (Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy) Mathematics Audience: Bachelor in Agricultural Science and Agricultural Technology (Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy) Valeria Leggieri - Curriculum vitae Page 5
Editorial Activities Referee for the following international journals: European Journal of Operations Research, International Journal of Communication Systems, Operations Research Letters. Organizational Activities Member of the Organizing Committee of the following editions of AIRO 2004, Lecce (Italy), 7-10 September 2004. Organizer of the special session on Network design at ISCO: International Symposium on Combinatorial Optimization, Hammamet (Tunisia), 24-26 March 2010. Language skills Italian: mother tongue English: fluent French: fluent German: basic Computer skills Optimization software package: Cplex, Lingo Statistical software: SPSS, R Programming languages: C Typesetting and publishing: L A TEX, Microsoft Office Valeria Leggieri - Curriculum vitae Page 6