Research

My research work focuses on applications of machine learning and data towards efficient computing, quality of service on web-services, and autonomic Cloud applications management. I have been working at the LARCA Research Group (Laboratori d'Algorí­smica Relacional, Complexitat i Aprenentatge) at LSI-UPC, in the HPC-Autonomic (High Performance Computing Group) at DAC-UPC, and Autonomic Business Systems at Barcelona Supercomputing Center (BSC). Currently in the Data-Centric Computing research group at BSC.

Research Projects

Hi-EST"Holistic Integration of Emerging Supercomputing Technologies". European Research Council (GA 639595), DataCentric Computing Group @ BSC2015 - 2020
PATRONS@BSC"Emission Models and Patterns through Machine Learning Analytics". Partially financed by Severo Ochoa Programme (GA SEV-2015-0493), collaboration with Earth Sciences Department @ BSC2017 - ...
DM-CANCER"Data Mining on Carcinogen Data". Collaboration with the Life Sciences Department @ BSC2016 - ...
CAP-VII"Computación de Altas Prestaciones VII". TIN2015-65316-P jan/16-dec/192016 - 2019
IBM-BSC JSA"Joint Study Agreement", Joint research agreement between IBM and BSC.2019 - 2021
Finished Projects
LIGHTHOUSECisco-Lighthouse, Fog Computing on Smart-CitesBSC-Cisco Agreement2015 - 2017
ALOJAHadoop Benchmark Repository and Performance Analysis ToolsBSC-Microsoft Agreement2014 - 2017
CAP-VIComputación de Altas Prestaciones VITIN2012-34557, jan/13-dec/152013 - 2015
BASMATIBiological and Social Mining: Algorithms, Theory, and ImplementationTIN2011-27479-C04-03, jan/12-dec/142012 - 2014
PARASOLRutgers Green microDatacenterRutgers Univ. jan/12-jul/122012
SESAAME-BCNSymbolic Sequences: Analysis, Learning, Mining, and EvolutionTIN2008-06582-C03; jan/09-dec/112009 - 2011
MOISES-BCNIndividualized Modeling of Symbolic SequencesTIN2005-08832-C03-01; jan/06-dec/082006 - 2008

Grants and Fellowships

  • JOSE CASTILLEJO 2018 (Spanish Ministry of Education) : Mobility grant (USA 3 months), 2019.
  • JUAN DE LA CIERVA INCORPORACIÓN 2016 (Spanish Ministry of Economy) : Research Fellowship at BSC, 2018 - 2019.
  • EEBB-MICINN 2011 (Spanish Ministry of Science) : Mobility grant (USA 6 months), 2012.
  • FPI-MICINN 2008 (Spanish Ministry of Science) : Ph.D. studies, at LARCA-UPC research group, 2009 - 2013.
  • BEQUES UNIVERS 2004 – 2007 (UPC) : Facultat Informàtica de Barcelona (FIB).

Research Publications

ORCID: 0000-0003-3037-3580 DBLP: Berral:Josep_Lluis Google Scholar: Josep Lluís Berral
Journal Publications
10.Shuja-ur-Rehman Baig, Waheed Iqbal, Josep Lluís Berral, Abdelkarim Erradi, David Carrera. “Real-time Data Center’s Telemetry Reduction and Reconstruction Using Markov Chain Models” IEEE Systems Journal, vol.99 issue.X pp.1-12 (2019). ISSN 1932-8184. Open Access. DOIJCR-Q1 4,3372019
9.Álvaro Villalba, Josep Ll. Berral, David Carrera. “Constant-Time Sliding Window Framework with Reduced Memory Footprint and Efficient Bulk Evictions” IEEE Transactions on Parallel and Distributed Processes, vol.30 issue.3 pp.486-500 (2019). ISSN 1045-9219. Open Access. DOIJCR-Q1 3,9712019
8.Juan Luis Perez, Alberto Gutierrez-Torre, Josep Ll. Berral, David Carrera. “A Resilient and Distributed Near Real-Time Traffic Forecasting Application for Fog Computing Environments” Elsevier Future Generation Computer Systems.87, pp.198-212/2018 ISSN 0167-739X. Open Access. DOIJCR-Q1 4,6392018
7.David Buchaca, Josep Ll. Berral, David Carrera. “Automatic Generation of Workload Profiles using Unsupervised Learning Pipelines”. IEEE Transactions on Network and Service Management, vol.15 issue.1 pp.142-155 (2018). ISSN 1932-4537. Open Access. DOIJCR-Q1 3,2862018
6.Josep Ll. Berral, Nicolas Poggi, David Carrera, Aaron Call, Rob Reinauer, Daron Green. “ALOJA: A Framework for Benchmarking and Predictive Analytics in Big Data Deployments”. IEEE Transactions on Emerging Topics in Computing vol.5 issue.4 pp.480-493 (2017). ISSN 2168-6750. DOI [LINK]JCR-Q1 3,6262017
5.Luis Velasco, Adrian Asensio, Josep Ll. Berral, Alberto Castro, Victor López. “Towards a carrier SDN: an example for elastic inter-datacenter connectivity”. Optics Express. 22-1, pp. 55-61. 01/2014. ISSN 1094-4087. DOIJCR-Q1 1,6952014
4.Luis Velasco, Adrian Asensio, Josep Lluis Berral, Edoardo Bonetto, Francesco Musumeci, Víctor López. “Elastic operations in federated datacenters for performance and cost optimization.” Elsevier Computer Communications 50: 142-151 (2014). ISSN 0140-3664. DOIJCR-Q1 3,4882014
3.Luis Velasco, Adrian Asensio, Alberto Castro, Josep Lluis Berral, David Carrera, Víctor López, Juan P. Fernández Palacios. “Cross-stratum orchestration and flexgrid optical networks for data center federations.” IEEE Network 27(6): 23-30 (2013). ISSN 0890-8044. DOIJCR-Q1 3,7202013
2.Iñigo Goiri, Josep Ll. Berral, J. Oriol Fitó, Ferran Julià, Ramon Nou, Jordi Guitart, Ricard Gavaldà, Jordi Torres, “Energy-efficient and multifaceted resource management for profit-driven virtualized data centers” Elsevier Future Generation Computer Systems.5-28, pp.718-731.05/2012. ISSN 0167-739X. DOIJCR-Q1 1,8642012
1.Nicolas Poggi, Toni Moreno, Josep Lluis Berral, Ricard Gavaldà, Jordi Torres, “Self-Adaptive Utility-Based Web Session Management.” Elsevier Computer Networks.53-10, pp.1712-1721.07/2009. ISSN 1389-1286. DOIJCR-Q2 1,2012009
Publications in International Conferences and Workshops
20.Josep Ll. Berral, Nicolas Poggi. “Database Integrated Analytics using R: Initial Experiences with SQL-Server + R”. The IEEE International Conference on Data Mining (IEEE ICDM 2016), Barcelona, Spain, December 12-15 2016. DOI [LINK], PPTCORE-A*2016
19.Nicolas Poggi, Josep Ll. Berral, Thomas Fenech, David Carrera, Jose Blakeley, Umar Farooq Minhas, and Nikola Vujic. “The state of SQL-on-Hadoop in the Cloud”. The IEEE International Conference on Big Data (IEEE BigData 2016), Washington DC, USA, December 5-8 2016. DOI [LINK]-2016
18.Nicolas Poggi, Josep Ll. Berral, David Carrera. “ALOJA: a Benchmarking and Predictive Platform for Big Data Performance Analysis”. The Sixth Workshop on Big Data Benchmarking (6th WBDB). June 16-17, 2015 in Toronto, Canada. (LNCS, vol.10044, pp.71-84.12/2016. ISBN 978-3-319-49747-1, Springer) DOI [LINK]-2015
17.Nicolas Poggi, Josep Ll. Berral, David Carrera, Aaron Call, Rob Reinauer, Nikola Vujic, Daron Green, José Blakeley, Fabrizio Gagliardi. “From Performance Profiling to Predictive Analytics while Evaluating Hadoop Cost-Efficiency in ALOJA”. The IEEE International Conference on Big Data (IEEE BigData 2015), Santa Clara (CA), USA, Oct. 29-Nov. 1 2015. DOI [PDF]-2015
16.Josep Ll. Berral, Nicolas Poggi, David Carrera, Aaron Call, Rob Reinauer, Daron Green. “ALOJA-ML: A Framework for Automating Characterization and Knowledge Discovery in Hadoop Deployments”. The 21st ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD 2015), Sydney, Australia, August 10-13 2015. DOI [LINK], PPTCORE-A*2015
15.Josep Ll. Berral, Íñigo Goiri, Thu Nguyen, Ricard Gavaldà, Jordi Torres, Ricardo Bianchini. “Building Low-Cost Green DataCenters”. The International Conference on Distributed Computer Systems (ICDCS 2014). DOI [LINK]CORE-A2014
14.Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “Power-aware Multi-DataCenter Management using Machine Learning”. The 42rd International Conference on Parallel Processing - Workshop on Power-aware Algorithms, Systems, and Architectures (ICPP - PASA), 2013. DOI [LINK], PPTCORE-A2013
13.Luis Velasco, Adrià Asensio, Josep Ll. Berral, Alberto Castro, Victor López, “Towards a Carrier SDN: An example for Elastic Inter-Datacenter Connectivity”. European Conference on Optical Communication (ECOC), 2013. DOI [LINK]-2013
12.Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “Empowering Automatic Data-Center Management with Machine Learning”. The 28th ACM Symposium on Applied Computing (SAC 2013) Data-Mining track, Coimbra, Portugal, March 18-22 2013. DOI [PDF]CORE-B2013
11.Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “Adaptive Scheduling on Power-Aware Managed Data-Centers using Machine Learning”. The IEEE International Conference on GRID Computing (GRID 2011), Lyon, France, September 22-23 2011. DOI [PDF], PPTCORE-A2011
10.Iñigo Goiri, J. Oriol Fitó, Ferran Julià, Ramón Nou, Josep Ll. Berral, Jordi Guitart, and Jordi Torres. “Multifaceted Resource Management for Dealing with Heterogeneous Workloads in Virtualized Data Centers ”. The 11th ACM/IEEE International Conference on Grid Computing (GRID 2010), Brussels, Belgium, October 25-29, 2010. DOI [LINK]CORE-A2010
9.Iñigo Goiri, Ferran Julià , Ramón Nou, Josep Ll. Berral, Jordi Guitart and Jordi Torres. “Energy-aware Scheduling in Virtualized Datacenters”. IEEE International Conference on Cluster Computing (CLUSTER 2010), Heraclion (Creta), Greece, September 20 - 24, 2010. DOI [LINK]CORE-A2010
8.Javier Alonso, Josep Ll. Berral, Ricard Gavaldà and Jordi Torres. “Adaptive on-line software aging prediction based on Machine Learning”. The 40th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2010), Chicago (IL), USA, June 28 - July 1, 2010. DOI [LINK]CORE-A2010
7.Javier Alonso, Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “J2EE Instrumentation for software aging root cause application component determination with AspectJ”. 15th IEEE Workshop on Dependable Parallel, Distributed and Network-Centric Systems (DPDNS 2010), Atlanta (GA), USA, April 19-23 2010. DOI [LINK], PPTCORE-A2010
6.Josep Ll. Berral, Iñigo Goiri, Ramon Nou, Ferran Julià, Jordi Guitart, Ricard Gavaldà, Jordi Torres. “Towards energy-aware scheduling in data centers using machine learning”. 1st ACM/SIGCOM Intl. Conf. on Energy-Efficient Computing and Networking (eEnergy 2010), Passau, Germany, April 13-15 2010. DOI [LINK], PPT-2010
5.Josep Ll. Berral, Nicolas Poggi, Javier Alonso, Ricard Gavaldà, Jordi Torres, Manish Parashar. “Adaptive Distributed Mechanism Against Flooding Network Attacks Based on Machine Learning.” 1st ACM Workshop on Artificial Intelligence on Security (AISec 2008), Alexandria (VA), USA, October 27th 2008. DOI [PDF], PPTCORE-A*2008
4.Jordi Torres, David Carrera, Vicenç Beltran, Nicolas Poggi, Josep Ll. Berral, Ricard Gavaldà, Eduard Ayguadé, Toni Moreno, Jordi Guitar, “Tailoring resources: Energy efficient consolidation strategy goes beyond virtualization.” The International Conference on Autonomic Computing (ICAC 2008), Chicago (IL), USA, 2 to 6 of July, 2008, IEEE International Conference on Autonomic Computing. DOICORE-B2008
3.Nicolas Poggi, Josep Ll. Berral, Toni Moreno, Ricard Gavaldà, Jordi Torres, “Automatic Detection and Banning of Content Stealing Bots for E-commerce.” Workshop on Machine Learning in Adversarial Environments for Computer Security, British Columbia, Canada, December the 8th, 2007, The Neural Information Processing Systems (NIPS 2007) Foundation (Proceedings of the NIPS Machine Learning in Adversarial Environments for Computer Security 2007). [PDF]CORE-A*2007
2.Toni Moreno, Nicolas Poggi, Josep Ll. Berral, Ricard Gavaldà and Jordi Torres, “Policy-based autonomous bidding for overload management in eCommerce websites.” Group Decision and Negotiation Meeting - GDN Section of INFORMS, Montreal, Canada, 14-1 of May, 2007, Group Decision and Negotiation, INFORMS (Proceedings of the Group Decision and Negotiation 2007, pages 162-166). REF [PDF]-2007
1.Nicolas Poggi, Toni Moreno, Josep Ll. Berral, Ricard Gavaldà and Jordi Torres, “Web Customer Modeling for Automated Session Prioritization on High Traffic Sites.” 11th International Conference on User Modeling (UM 2007), Corfu, Grece, 25-29 of June, 2007. User Modeling Inc. (LNCS, vol.4511 pp.450-454.06/2007. ISSN 0302-9743, Springer). DOI [PDF]CORE-B2007
Book Chapters
1.Josep Ll. Berral, Iñigo Goiri, Ramon Nou, Ferran Julià, Josep O. Fitó, Jordi Guitart, Ricard Gavaldà, Jordi Torres, “Toward Energy-Aware Scheduling Using Machine Learning” Energy-Efficient Distributed Computing Systems, Chapter 8. Editors: Albert Y. Zomaya, Young Choon Lee, July 2012. ISBN 9780470908754. DOI [PDF]2012
Invited Talks and Tutorials
2.Josep Ll. Berral. “When and how to apply Statistics, Machine Learning and Deep Learning Techniques”. ICTON - Intl. Conf. Transparent Optical Networks. Bucarest, Romania, July 2nd, 2018. ISBN: 978-1-5386-6604-3 DOI [LINK], PPT2018
1.Josep Ll. Berral. “A Quick View on Current Techniques and Machine Learning Algorithms for Big Data Analytics”. ICTON - Intl. Conf. Transparent Optical Networks. Trento, Italy, July 13th, 2016. ISBN: 978-1-5090-1467-5 DOI [LINK], PPT2016
Technical Reports, Local Conferences and Extended Versions
10.Alberto Gutiérrez, David Buchaca, Josep Ll. Berral. “Discovering ship navigation patterns towards environmental impact modeling”. BSC Severo Ochoa International Doctoral Symposium, "Book of abstracts", p. 34-35, Barcelona, 2017. LINK2017
9.Luis Velasco, Adrià Asensio, Josep Ll. Berral, Eduardo Bonetto, F. Musumeci, Victor López. “Elastic Operations in Federated Datacenters for Performance and Cost Optimization”. Research Report number: UPC-DAC-RR-CBA-2013-2, May 2013. LINK2013
8.Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “Modeling cloud resources using Machine Learning”. Research Report number: UPC-LSI-13-7-R, March 2013. LINK2013
7.Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “Empowering Automatic Data-Center Management with Machine Learning”. Extended version SAC 2013. Research Report number: UPC-LSI-13-1-R, January 2013. LINK2013
6.Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “Adaptive Scheduling on Power-Aware Managed Data-Centers using Machine Learning” Extended Version GRID 2011. Research Report number: UPC-LSI-11-7-R, July 2011. LINK2011
5.Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “'Living In Barcelona' Li-BCN Workload 2010” Research Report number: UPC-LSI-11-1-T, January 2011. LINK2011
4.Josep Ll. Berral, Ricard Gavaldà, Jordi Torres. “An Integer Linear Programming Representation for DataCenter Power-Aware Management” Research Report number: UPC-LSI-10-21-R, November 2010. LINK2010
3.Ferran Julià, Jordi Roldan, Ramon Nou, Oriol Fitó, Alex Vaqué, Iñigo Goiri, Josep Ll. Berral. “EEFSim: Energy Efficency Simulator” Research Report number: UPC-DAC-RR-CAP-2010-15, June 2010. LINK2010
2.Josep Ll. Berral, Javier Alonso, Nicolas Poggi, Ricard Gavaldà, Manish Parashar, Jordi Torres, “Distributed Learning Mechanism Against Flooding Network Attacks.” XIX Jornadas de Paralelismo, Castelló, Spain, 17-19 of September, 2008. REF [PDF]2008
1.Nicolas Poggi, Toni Moreno, Josep Lluis Berral, Ricard Gavaldà, Jordi Torres. “Web customer modeling for automated session prioritization on high traffic sites.” Registered Version UM 2007. Research Report number UPC-DAC-RR-CAP-2006-23, November 2006. LINK2006
Patents
1.Juan Luis Perez, Alberto Gutierrez-Torre, Josep Ll. Berral, David Carrera. “Fog Computing Systems and Methods”. EP18382285.7, EU patent, 26th April 2018.2018
Demos
1.J. Guitart, I. Goiri, F. Julià, M. Macías, D. Carrera, Y. Becerra, V. Beltran, J. Polo, D. de Nadal, U. Kiran, J.O. Fitó, G. Reig, R. Badia, J. Ejarque, E. Ayguadé, J. Alonso, J.Ll. Berral, R. Gavaldà, N. Poggi, and J. Torres. “EMOTIVE CLOUD: The BSC Engine for Cloud Solutions”. 6th IEEE International Conference on Autonomic Computing (ICAC). Barcelona, Spain, June 15-19, 2009.2009
Publications with Academic Purposes
1.Josep Ll. Berral. “Self-Adaption and Learning on the Cloud: Since the Grid until Now.”. In: J. Torres, I. Goiri, M. Macias (Eds.), "Execution Environments for Distributed Computation Issues", Chapter 5, Pages 117-135. Lulu.com publisher, 2008. ISBN: 978-1-4092-1787-9.2008
Theses and Final Degree Project
Ph.D.Josep Lluís Berral García. “Improved Management of Data-Center Systems using Machine Learning” (Ph.D. Thesis on Computer Sciences) November 22nd, 2013. LINK PPT2013
M.Sc.Josep Lluís Berral García. “Distributed Framework Against Flooding Attacks Based on Machine Learning” (M.Sc. Computer Architecture, Networks and Systems) July 8th, 2008.2008
Eng.Josep Lluís Berral García. “Sistema d'Admissió de Clients Autoadaptatiu en un entorn Web” (Final Degree on Informatics [5 year programme]) June 27th, 2007.2007

Visits and Collaborations

Visiting Positions
  • Rutgers, State University of New Jersey: Scholar Visit to Rutgers with professor Ricardo Bianchini, from January to July 2012.

Services and Commissions

Institutional Responsibilities
  • Computer Architecture Department
    → Member of the Department Council and Committee. From July 2006 to July 2007.
  • Faculty of Informatics of Barcelona
    → Member of the Faculty Council, from July 2004 to July 2007.
    → Member of the Faculty Academic Committees, from July 2004 to July 2007.
    → Member of the Students Council (DAFIB), from June 2004 to July 2007; Secretary('06), President('07).
    → Member of the Committee of the Faculty Spring festival (FestaFIB), from June 2004 to July 2007; President('06-'07).
    → Member of the Faculty Student Magazine (Associació Cultural l'Oasi), from June 2005 to December 2013; Chief editor('08-'10).

Commissions of Trust
  • Reviewer at IEEE Systems Journal (SJ)
  • Reviewer at IEEE Transactions on Networking (TNET)
  • Reviewer at IEEE Transactions on Emerging Topics on Computing (TETC)
  • Reviewer at IEEE Transactions on Parallel and Distributed Systems (TPDS)
  • Reviewer at IEEE Transactions on Networks and Systems Management (TNSM)
  • Reviewer at IEEE Networks magazine (Network)
  • Reviewer at Elsevier Sustainable Computing (SUSCOM)
  • Reviewer at IEEE/ACM Intl. Symposium on Cluster, Cloud and Grid Computing (CCGRID)
  • Reviewer at Intl. European Conference on Parallel and Distributed Computing (EuroPAR)
  • Reviewer at IEEE Intl. Conference on Autonomic Computing (ICAC)
  • Reviewer at IEEE Intl. Conference on Big Data (BigData)

Organization of Scientific Conferences
  • Program Committee at IEEE ICDM-Workshops 2016 "International Conference on Data Mining".
  • Volunteer at IJCAI 2011 – "International Joint Conference on Artificial Intelligence".
  • Volunteer at ECML-PKDD 2010 – "European Conference on Machine Learning - Principles and Practices on Knowledge Discovery".

Societies and Community
  • Member of IEEE, since mid-2017
  • Member of ACM & SIGKDD, since 2019
  • Member of the "Green-IT Conferences" community, from 2010 to 2013.

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