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Armen Aghasaryan

Paris-Saclay, France
Group Leader, ML & Systems / AI Research Lab

Research Interests

Biography

I hold a PhD in signal processing and telecommunications from INRIA / University of Rennes, France. I joined Alcatel’s research and innovation center in 2000, after two years of post-doctoral study at France Telecom (Orange), where I have focused on practical aspects of my thesis applied to distributed fault diagnosis in telecommunication networks.

During the years of research at Alcatel, Alcatel-Lucent, and Nokia Bell Labs, I have been developing models and algorithms for problems of practical relevance such as autonomous network management, privacy-preserving recommender systems, causal modeling for telco and cloud networks, root cause analysis and predictive maintenance in complex distributed systems.

Currently, I am heading the Machine Learning & Systems group in AI Research Lab. The research group is composed of computer scientists, data engineers, and students that develop AI-based systems and algorithms while gaping the bridge between the promise of limitless capabilities of AI and the constraints imposed by real systems.My current research interests include deriving AI-based solutions with verifiable properties that ensure trust and provide causal interpretation of their outcomes and actions.

Featured Quote

 

“…Causal questions can never be answered from data alone. They require us to formulate a model of the process that generates the data, or at least some aspects of that process.” 

Judea Pearl, The Book of Why

 

Today’s AI approaches train the machine to associate patterns with specific meaning. This approach fails when the possibilities to learn are too many, and there is not enough data evidence to generalize over the unobserved possibilities. I believe the true intelligence of machines must be built based on the ability to reason about why we are observing a specific phenomenon and to ask counterfactual questions.

Education

Ph.D. Signal Processing and Telecommunications from the University of Rennes and INRIA/IRISA lab, Rennes, France

        Supervisors: Albert Benveniste and Eric Fabre

        Thesis: HMM formalism for partially stochastic Petri nets: application to fault diagnosis in distributed systems (in French)

 

M.Sc. in Industrial Engineering from the American University of Armenia, Armenia

M.Sc. and B.Sc. in Control System Engineering from Yerevan Institute of Polytechnic, Armenia

Selected articles and publications

(full list here)

Towards Building a Digital Twin of Complex System Using Causal ModellingL. Jakovljevic, D. Kostadinov, Armen Aghasaryan, T. Palpanas. Complex Networks & Their Applications X. COMPLEX NETWORKS 2021. Springer. 2022

Reinforcement learning for antennas’ electric tilts optimization in self organizing networksA. Massaro, D. Wellington, Armen Aghasaryan and R. Seidl. IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2021

Machine Learning Approaches to Early Fault Detection and Identification in NFV ArchitecturesA. Elmajed, Armen Aghasaryan and E. Fabre. 6th IEEE Conference on Network Softwarization (NetSoft), 2020

Resource management of cloud-enabled systems using model-free reinforcement learningY. Jin, M. Bouzid, D. Kostadinov, and Armen Aghasaryan. Annals of. Telecommunications 74, 2019

Common Structures in Resource Management as Driver for Reinforcement Learning: A Survey and Research TracksY Jin, D. Kostadinov, M. Bouzid, Armen Aghasaryan. Machine Learning for Networking (MLN 2018). Lecture Notes in Computer Science, vol 11407. Springer, 2019

Cooperative AI-based e2e Network Slice ScalingM.Bouzid,D.Hung Luong,D.Kostadinov; Y.Jin,L.Maggi,A.Outtagarts,Armen Aghasaryan.IEEE INFOCOM (INFOCOM WKSHPS), 2019

Stimulus-based sandbox for learning resource dependencies in virtualized distributed applicationsArmen Aghasaryan, M. Bouzid and D. Kostadinov. 20th Conference on Innovations in Clouds, Internet and Networks (ICIN), 2017

Group Representation and ProfilingArmen Aghasaryan, M. Bouzid, D. Kostadinov, J. Picault. Encyclopedia of Social Network Analysis and Mining. Springer, New York, 2014.

Exploring the impact of LSH parameters in privacy-preserving personalizationArmen Aghasaryan, M. Bouzid, D. Kostadinov and A. Nandi. Bell Labs Technical Journal, vol. 18, no. 4, 2014

On the use of decentralization to enable privacy in web-scale recommendation servicesA. Nandi, Armen Aghasaryan, and I. Chhabra. In Proceedings of the 12th ACM workshop on Privacy in the Electronic Society (WPES '13), 2013

On the Use of LSH for Privacy Preserving PersonalizationArmen Aghasaryan, M. Bouzid, D. Kostadinov, M. Kothari and A. Nandi. 12th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom), 2013.

Reputation Diffusion Simulation for Avoiding Privacy ViolationD. Pergament, Armen Aghasaryan and J. Ganascia. IEEE 11th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom), 2012

P3: A Privacy Preserving Personalization Middleware for recommendation-based services., A Nandi, Armen Aghasaryan, M. Bouzid. Proc. of 4th Hot Topics in Privacy Enhancing Technologies Symposium (HotPETS 2011) at PETS 2011

Intelligent Reactive Access Control for Moving User Data, Y. Wang, Armen Aghasaryan, A. Shrihari, D. Pergament, G. Kamga and S. Betge-Brezetz. IEEE 3rd Intl. Conference on Privacy, Security, Risk and Trust and 3rd Intl. Conference on Social Computing, 2011

Privacy Data Envelope: Concept and implementationM. Ghorbel, Armen Aghasaryan, S. Betgé-Brezetz, M. Dupont, G. Kamga and S. Piekarec. 9th Annual International Conference on Privacy, Security and Trust, 2011

Evaluation of Group Profiling StrategiesC. Senot, D. Kostadinov, M. Bouzid, J. Picault, and Armen Aghasaryan. Proceedings of the 22nd  International Joint Conference on Artificial Intelligence (IJCAI), Barcelona, Spain, 2011

Multi-source user profiling and keyword inference for personalized application enablementArmen Aghasaryan, S. Betgé-Brezetz, M. Kodialam, S. Mukherjee, C. Senot, Y. Toms, L. Wang. 13th International Conference on Intelligence in Next Generation Networks, 2009.

Ontology-Based Profiling and Recommendations for Mobile TVY. Naudet, Armen Aghasaryan, S. Mignon, Y. Toms, C. Senot. Semantics in Adaptive and Personalized Services. Studies in Computational Intelligence, vol 279. Springer, 2010

UML Specification of a Generic Model for Fault Diagnosis of Telecommunication NetworksArmen Aghasaryan, A., C. Jard, J. Thomas. Telecommunications and Networking - ICT 2004. Lecture Notes in Computer Science, vol 3124. Springer, 2004

Algorithms for Distributed Fault Management in Telecommunications NetworksE. Fabre, A. Benveniste, S. Haar, C. Jard, Armen Aghasaryan. Telecommunications and Networking - ICT 2004. Lecture Notes in Computer Science, vol 3124. Springer, 2004.

Fault Detection and Diagnosis in Distributed Systems: An Approach by Partially Stochastic Petri NetsArmen Aghasaryan, E. Fabre, A. Benveniste, R. Boubour and C. Jard. Journal Discrete Event Dynamic Systems 8, 203–231, 1998

A Petri net approach to fault detection and diagnosis in distributed systems. II. Extending Viterbi algorithm and HMM techniques to Petri netsArmen Aghasaryan, E. Fabre, A. Benveniste, R. Boubour and C. Jard. Proceedings of the 36th IEEE Conference on Decision and Control (CDC), 1997.

Patents

 EP-2862337-B1        Architecture de système de protection de la vie privée pour des services de recommandation

US-9430671-B2       Method and apparatus for privacy protected clustering of user interest profiles

EP-1788810-B1       Method and system for interactive television involving multi-users and television receiver therefor

US-2014223575-A1 Privacy protection in recommendation services

US-2008281677-A1 System and associated method for selecting advertisements

WO-2008052966-A1Applications for profiling the users of telecommunication services

WO-2012136462-A1 Procédé de paramétrage de règles de diffusion de données personnelles

FR-2977345-A1        DIGITAL CONTENT RECOMMENDATION SYSTEM

EP-2169854-A1        Procédé d'apprentissage de profil utilisateur et moteur de profilage associé pour plateformes combinées de fourniture de services

EP-3316140-A1        Améliorations apportées ou se rapportant à la détermination de la performance dans une application répartie ou un système distribué

EP-2043010-A1       Apparatus for automatic indexing of content

EP-2270741-A1       Stratégie d'exposition personnalisée

WO-2011061457-A2Method and system for assisting with colour selection

EP-2575287-A1        Procédé de publication de contenu sur un réseau de communication

EP-2410710-A1        Procédé de routage dans un réseau de distribution de contenu et rÉseau oriente contenu mettant en œuvre ce procédé

EP-3435233-A1       A method for identifying causality objects

EP-2852186-B1        Procédé permettant de fournir un équipement de réseau de service géo dépendant (lbs) avec des zones d'emplacement d'Équipements de communication sans fil et dispositif associé

EP-2178286-A1       Method of managing the delivery of spontaneous content to a mobile telecommunication terminal and associated devices

EP-2249592-A1        Procédé et dispositif d'obtention d'informations statistiques relatives à des usagers fréquentant des lieux situés dans la zone de couverture radio d'au moins un réseau de communication sans fil

FR-2963131-B1        Procédé de protection des données privées sur un réseau

WO-2013064316-A1 Système d'optimisation de circulation routière

EP-2110783-A1       System and method for selecting a message capable of being delivered to a telecommunications service user

FR-2932297-A1        Procédé de sélection d'un message publicitaire au sein d'une plateforme

EP-2728917-A1       Process for protecting the privacy of a user in a network

EP-2827277-A1        Protection de la confidentialité dans des services de personnalisation

FR-2976430-A1        Contrôle de traitement d'un objet multimédia par une application logicielle

US-2019317814-A1 Resource management of resource-controlled system

EP-2194477-A1        Procédé de profilage d'utilisateurs et système correspondant

EP-2463788-A1       System for selecting key words, method and database implementing such a system

EP-2747371-B1        Définition des stratégies d'accès par rapport à un objet de données

EP-2196957-A1       Audience targeting auto-optimization system for an advertizing platform in a telecommunication network

WO-2016188682-A1 Procédé de détermination de la topologie d'un nuage informatique à une date événement

EP-3001317-A1        Corrélation d'alarme selon les dépendances entre des entités du système de traitement de données gérées

AT-537653-T           PROCESS FOR ENABLING THE PROVISION OF ADJUSTED SERVICES FOR A TERMINAL THROUGH A SEARCHED NETWORK

FR-2908213-A1        Procédé et système de sélection automatique d'information personnalisée pour un flux multimédia

EP-2075752-A1        Méthode et dispositif de gestion de données de profils s'utilisateurs avec mesure d'incertitude

FR-2938089-B1        Procédé de détermination de critères d'intérêt d'un utilisateur d'un terminal a partir d'un contenu multimédia visionne par l'utilisateur

EP-3336704-A1        Procédé permettant de sélectionner un nœud racine dans un environnement nuagique

DE-602008004057-D1Apparatus and method for context capture of users of communication terminals using audio signals collected in their environment

EP-2270711-A1       Group privacy policy manager

DE-602004022067-D1Interface device between diagnostic means and analysis means of a communication network

AU-2002238664-A1 Monitoring and diagnosing the operating conditions of a dynamic system

FR-2980606-A1       Method for jamming profile of user, involves transmitting additional request to service such that profile is scrambled, and validating scrambled profile in addition to additional request before transmission of service

FR-2915596-A1        Procédé pour intégrer automatiquement dans un gestionnaire PIM au moins une information connexe a un évènement agende

FR-2821508-B1       SUPERVISION AND DIAGNOSIS OF THE FUNCTIONING OF A DYNAMIC SYSTEM

EP-2306686-A1       Device and method for an automated gestion of users' identities and profiles of communications Equipment.

EP-2071505-A1        Gestionnaire de communautés

FR-2834845-A1       System for creation, deployment and or monitoring of complex services implemented over a data network, e.g. video on demand, whereby services are modeled as a series of levels so that linked entities and components can be seen

EP-2642717-A1       Process for transmitting data to an entity in a network infrastructure

EP-1986149-A1       Method of configuring parameters for setting up a profile for a customer of a telecommunications service platform.

EP-2180442-A1        Système d'assistance et procédé correspondant dans de grands magasins de vente au détail

FR-2951894-A1           Procédé et système pour la préservation de la bande passante dans un réseau IPTV