Aller au contenu principal
A propos d'HEC A propos d'HEC
Summer School Summer School
Faculté et Recherche Faculté et Recherche
Bachelor Programs Bachelor Programs
MBA Programs MBA Programs
Programme PhD Programme PhD
Executive Education Executive Education
HEC Online HEC Online
A propos d'HEC
En bref En bref
Qui sommes-nous ? Qui sommes-nous ?
Egalité des chances Egalité des chances
HEC Talents HEC Talents
International International
Vie du campus Vie du campus
Sustainability Sustainability
Diversité et inclusion Diversité et inclusion
Stories Stories
Fondation HEC Fondation HEC
Summer School
Youth programs Youth programs
Summer programs Summer programs
Online Programs Online Programs
Faculté et Recherche
À propos À propos
Corps professoral Corps professoral
Départements Départements
Centres Centres
Chaires Chaires
Financements Financements
Knowledge@HEC Knowledge@HEC
Grande Ecole
& Masters
Grande Ecole
Master in Management
Grande Ecole
Master in Management
Programmes
Masters
Programmes
Masters
Doubles
Diplômes
Doubles
Diplômes
Programmes
Bachelor
Programmes
Bachelor
Programmes
Summer
Programmes
Summer
Exchange
students
Exchange
students
Vie
Etudiante
Vie
Etudiante
Notre
différence
Notre
différence
Bachelor Programs
Vue d'ensemble Vue d'ensemble
Course content Course content
Admissions Admissions
Fees and Financing Fees and Financing
MBA Programs
MBA MBA
Executive MBA Executive MBA
TRIUM EMBA TRIUM EMBA
Programme PhD
Overview Overview
HEC Difference HEC Difference
Program details Program details
Research areas Research areas
HEC Community HEC Community
Placement Placement
Job Market Job Market
Admissions Admissions
Financing Financing
Executive Education
Accueil Accueil
Qui sommes-nous ? Qui sommes-nous ?
Univers de formation Univers de formation
Programmes Programmes
Offres entreprises Offres entreprises
Événements/Actualités Événements/Actualités
Contacts Contacts
HEC Online
En bref En bref
Programme diplômant Programme diplômant
Certificats Executive Certificats Executive
MOOCs MOOCs
Summer Programs Summer Programs
Youth programs Youth programs

Vassilis DIGALAKIS

Professeur Assistant

Information Systems et Operations Management

 Profile picture

Biographie

Vassilis Digalakis Jr is an Assistant Professor of Operations Management at the Information Systems and Operations Management Department at HEC Paris, affiliated with Hi! Paris and GREGHEC. He completed his Ph.D. in Operations Research at MIT in 2023, advised by Prof. Dimitris Bertsimas. His research develops analytics and interpretable machine learning methodologies to facilitate the adoption of data-driven decision support tools in high-stakes applications, primarily in sustainability and healthcare. Vassilis has collaborated, among others, with OCP, the world's largest producer of phosphate and phosphate-based products, to develop an optimization framework that guides their 2 billion USD investment in solar panels and batteries; and with the Federal Emergency Management Agency to help them decide on locations for COVID-19 mass vaccination centers and state-level allocation policy.

To find out more, visit Vassilis' personal website https://vvdigalakis.github.io/.

Articles scientifiques

Decarbonizing OCP

Manufacturing & Service Operations Management, À paraître, (in coll. with D. Bertsimas, R. Cory-Wright)

Frequency Estimation in Data Streams: Learning the Optimal Hashing Scheme

IEEE Transactions on Knowledge and Data Engineering, 19 2023, vol. 35, n° 2, pp 1541-1553, (in coll. with D. Bertsimas)

Where to locate COVID-19 mass vaccination facilities?

Naval Research Logistics, mars 2022, vol. 69, n° 2, pp 179-200, (in coll. with D. Bertsimas, A. Jacquillat, M. L. Li, A. Previero)

The backbone method for ultra-high dimensional sparse machine learning

Machine Learning, juin 2022, vol. 111, pp 2161-2212, (in coll. with D. Bertsimas)

From predictions to prescriptions: A data-driven response to COVID-19

Health Care Management Science, juin 2021, vol. 24, pp 253-272, (in coll. with D. Bertsimas, L. Boussioux, R. Cory-Wright, A. Delarue, A. Jacquillat, D. L. Kitane, G. Lukin, M. Li, L. Mingardi, O. Nohadani, A. Orfanoudaki, T. Papalexopoulos, I. Paskov, J. Pauphilet, O. S. Lami, B. Stellato, H. T. Bouardi, K. V. Carballo, H. Wiberg,)

Cahiers de recherche

Decarbonizing OCP

Cahier de Recherche , 2022

Articles scientifiques

Frequency Estimation in Data Streams: Learning the Optimal Hashing Scheme

IEEE Transactions on Knowledge and Data Engineering, 19 2023, vol. 35, n° 2, pp 1541-1553, (in coll. with D. Bertsimas)

The backbone method for ultra-high dimensional sparse machine learning

Machine Learning, juin 2022, vol. 111, pp 2161-2212, (in coll. with D. Bertsimas)

Where to locate COVID-19 mass vaccination facilities?

Naval Research Logistics, mars 2022, vol. 69, n° 2, pp 179-200, (in coll. with D. Bertsimas, A. Jacquillat, M. L. Li, A. Previero)

From predictions to prescriptions: A data-driven response to COVID-19

Health Care Management Science, juin 2021, vol. 24, pp 253-272, (in coll. with D. Bertsimas, L. Boussioux, R. Cory-Wright, A. Delarue, A. Jacquillat, D. L. Kitane, G. Lukin, M. Li, L. Mingardi, O. Nohadani, A. Orfanoudaki, T. Papalexopoulos, I. Paskov, J. Pauphilet, O. S. Lami, B. Stellato, H. T. Bouardi, K. V. Carballo, H. Wiberg,)

Cahiers de recherche

Decarbonizing OCP

Cahier de Recherche , 2022

Formation

  • Ph.D. in Operations Research, MIT, Massachusetts Institute of Technology - Etats-Unis

Nominations académiques

Responsabilités académiques à HEC

  • 2023- Professeur Assistant, Information Systems and Operations Management HEC Paris
  • 2023- Membre du GREGHEC, le laboratoire de recherche CNRS-HEC Paris, GREGHEC HEC Paris

Activités scientifiques

Activités scientifiques

  • Reviewer for Operations Research, Manufacturing & Service Operations Management, Journal of Machine Learning Research, INFORMS Journal on Computing, INFORMS Journal on Optimization

  • Conference organisation

  • 2021- INFORMS Annual Meeting Session Chair
  • Prix ​​& honneurs

    • 2023 MIT ORC Best Student Paper Competition | Honorable Mention for “Decarbonizing OCP" with Dimitris Bertsimas & Ryan Cory-Wright
    • 2023 MSOM Practice-Based Research Competition | Finalist for “Decarbonizing OCP" with Dimitris Bertsimas & Ryan Cory-Wright by INFORMS