Hi Everyone I'm

Stella BITCHEBE

Ph.D. Researcher in CS ENS Lyon ** Université Côte d'Azur

stella.bitchebe@univ-cotedazur.fr
About
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I come from Cameroon, where I did my secondary and higher education. After obtaining a scientific baccalaureate, I pursued studies as a statistician for two years and obtained in 2014 a diploma of higher technician in statistics at ISSEA (Subregional Institute of Statistics and Applied Economics), the best school of statistics in the CEMAC zone. In parallel to this training, I obtained in 2015, a diploma of generalized studies in mathematics at the University of Yaoundé I. During the same year, I joined the prestigious Polytechnic School of Yaoundé in Cameroon (major of the entrance exam), where I obtained my degree in Computer Engineering in 2018, finishing valedictorian of my graduating promotion.

I first came to France for my end-of-course internship at the IRIT laboratory in Toulouse, after which I obtained a Ph.D. position at the i3s laboratory of the University of Nice, under the supervision of Professor Alain Tchana. In 2019, we joined the LIP laboratory at ENS de Lyon. During my thesis, I received several illustrious awards and scientific distinctions that reward my research work. In particular, I am a laureate of the 2021 UNESCO-L'Oréal For Women In Science (FWIS) program (35 laureates in France and abroad), the 2021 Microsoft Research Fellowship (10 laureates in Europe), the 2021 NEC Laboratory Fellowship (7 laureates in Europe), and the 2022 Generation Google Scholarship for Women in Computer Science.

My research mainly focuses on Operating Systems and Hardware Virtualization. We particularly propose a novel virtualization research axis which is "OoH: Out of Hypervisor". Instead of emulating full virtual hardware inside a VM to support a hypervisor, the OoH principle is to individually expose current hypervisor-oriented hardware virtualization features to the guest OS. This way, guest’s processes could also take benefit from those features.

Aside from that, I like to sing as a hobby and I aim to make STEM in general, and Computer Science in particular (especially the world of research) accessible to young girls. To this end, one of my challenges is to fight against harassment and gender inequalities in the academic environment (both in schools, universities, and companies). This is why I created, in September 2021, the association YCOWS: Young Committed Women Scientists (with two other Ph.D. students and her thesis director) which aims to lead this fight, particularly in Cameroon.

Latest News

PUBLICATIONS

    International Conferences

  • Out of Hypervisor (OoH): Efficient Dirty Page Tracking In Userspace Using Hardware Virtualization Features. SC'22
    [ PDF][ Slides]
    Stella Bitchebe & Alain Tchana
  • Extending Intel PML for Hardware-Assisted Working Set Size Estimation of VMs. VEE'21
    [ PDF][ Slides]
    Stella Bitchebe, Djob Mvondo, Alain Tchana, Laurent Réveillère, Noel De Palma
  • Everything You Should Know About Intel SGX Performance on Virtualized Systems. Sigmetrics'19
    [ PDF]
    Tu Dinh Ngoc, Bao Bui, Stella Bitchebe, Alain Tchana, Valerio Schiavoni, Pascal Felber, Daniel Hagimont
  • International Workshops

  • Study Of Intel PML Effectiveness. 13th EuroSys Doctoral Workshop, Eurosys 2019
    [ PDF][ Slides]
    Stella Bitchebe, Alain Tchana, Laurent Réveillère

AWARDS and GRANTS

TALKS

December 2022

Speaker at Polytechnic Yaounde during the 'Scientific Days' seminar

Yaounde, Cameroon

June 2022

Guest researcher at the Sephora Berrebi Scholarship ceremony

Paris, France

April 2022

Invited speaker at IRISA to present my on OoH (Out of Hypervisor)

Rennes, France

March 2022

Invited speaker at the event “La science un métier de femmes”

ENS Lyon

Lyon, France

January 2022

Invited speaker at the conference “Can the digital future be more virtuous and sustainable?”

Bibliothèque Municipale de Lyon

Lyon, France

December 2021

Talk on my work and my project against the harassment of young girls in the academic environment

Ministry for the Promotion of Women and the Family

Yaounde, Cameroon

December 2021

Talk on my work and my project against the harassment of young girls in the academic environment

Ministry of Youth

Yaounde, Cameroon

July 2021

Presentation of the my project to the NEC team

First fellowship meeting

Visio conference, France - Germany

July 2021

Presentation of my work to Natacha Crooks

Visit of Natacha for a talk on her work

Ecole Normale Supérieure de Lyon (ENS), Lyon - France

June 2021

Presentation of my work to Pr Jalil Boukhobza team

"Séminaire CVS: Cloud, Virtualisation, Système"

ENSTA Bretagne, Brest - France

March 2020

Talk to high school girls during the event:

"La science un métier de femmes"

Ecole Normale Supérieure de Lyon (ENS), Lyon - France

July 2019

Hardware Assisted Virtual Machine Page Tracking:

Compas 2019

IUT de Bayonne, Anglet - France

March 2019

Study Of Intel PML Effectiveness:

EuroSys Doctoral Workshop (EuroDW 2019)

Technical University of Dresden (TUD), Dresden - Germany

February 2019

Hardware Features for Virtualization:

GDR and ASF Winter School on Distributed Systems and Network

Village of Pleynet, Sept Laux - France

September 2018

Speech to the student of the Computer Engineering Department about my carreer:

GDR and ASF Winter School on Distributed Systems and Network

Polytechnique Yaounde, Yaounde - Cameroon

Work and Teaching Experience

January - June
2022

(6 months)

L3 Assistant Teacher at ENS Lyon

Ecole Normale Supérieure de Lyon (ENS), Lyon - France

TP in L3, department of computer science: production of TPs, student monitoring.

January - June
2020

(6 months)

L3 Assistant Teacher at ENS Lyon

Ecole Normale Supérieure de Lyon (ENS), Lyon - France

TP in L3, department of computer science: production of TPs, student monitoring.

September - October 2018

(2 months)

L3 Assistant Teacher at Polytechnic Yaounde

National Advanced Polytechnic School of Engineering of Yaounde (ENSPY), Yaounde - Cameroon

Course on virtualization in L3, department of computer engineering: class preparation, exam preparation and copy correction, student monitoring.

March - August
2018

(6 months)

Research Internship at IRIT

Institut de Recherche en Informatique de Toulouse & Laboratoire de Recherche en Informatique de Bordeaux, France
Supervisors: Pr. Alain Tchana & Pr. Laurent Réveillère

Working Set Size estimation technique based on PML (Page Modification Logging).

EDUCATION

Ph.D. in Computer Science (Operating Systems and Virtualization)

March 2019 - February 2023

Laboratory i3S, Université Côte d’Azur, Nice, France

Supervisor: Pr. Alain Tchana

Theme: Out-of-Hypervisor (OoH): When Nested Virtualization Becomes Practical

Master Degree

2015 - 2018

National Advanced Polytechnic School of Engineering of Yaounde (ENSPY), Cameroon

Diploma of Engineering in Computer Science

Service to the Scientific Community

RESPONSIBILITIES

Student Supervision

  • Armel Nguetoum, M2 Student the Univeristy of Yaounde 1 - Department of Computer Science

    Topic: Dirty Page Tracking in Boehm GC Using Intel PML
    Co-supervised with Alain Tchana
  • Augusta Mukam, M2 Student at National Advanced Polytechnic School of Engineering of Yaounde

    Topic: Security policies related to the use of Intel SPP at the user-space level, March - September 2021
    Co-supervised with Alain Tchana
  • Yves Kone, M2 Student at Sorbonne University of Paris

    Topic: Applying Intel Sub-Page Permission to Memory Security, March - August 2020
    Co-supervised with Alain Tchana
  • Gaspard Thevenon, L3 Student at ENS of Lyon

    Topic: Everyone should benefit from Hardware Assisted Virtualization, not only the Hypvervisor, July - August 2020
    Co-supervised with Alain Tchana

Administrative

  • Member of the laboratory council, since December 2020

    LIP laboratory, ENS Lyon
  • Member of the parity working group, since december 2019

    LIP laboratory, ENS Lyon
  • Participation in the organization of the day: “La science, un métier de femmes”

    LIP laboratory, ENS Lyon, March 2019
  • Organization of doctoral seminars

    LIP laboratory, ENS Lyon

MEDIAS

  • I was selected to be part of the short video coverage for Microsoft Research 2021 Global PhD Fellowship Recipients.

  • In January 2022, was invited to be give a conference at the Municipal Library of Lyon.

  • I was invited to be a mentor for the third edition of the Olympiades féminines de mathématiques.

  • I was invited to be a Role Model for the association Rêv’ELLES.

  • I was the guest at the morning news of BFM Lyon for being a laureate of the "Prix Jeunes Talents France l'Oréal-UNESCO 2021 pour les Femmes et la Science" Listen to my talk: part 1 and part 2.

  • September 23, 2021, I was interviewed by RFI during the "Semaine Scientifique de l'AUF" in Bucarest (Romania): Facebook interview, Facebook live, and Instagram interview.

Where to find me

46 Allée d'Italie
ENS Site Monod
69007 Lyon

Email Me At

celestine-stella.ndonga-bitchebe@ens-lyon.fr
bitchebe@i3s.unice.fr