Valentín Carela-Español

Contact Details

Talaia Networks
Pau Claris 94, 3 B
08010 Barcelona
Catalonia, Spain

Or you can e-mail me at: email or View my profile on LinkedIn

Short Bio

I am currently SDN Solutions Manager at Talaia, a company that commercialises a network visibility service. I am also an external collaborator at the Broadband Communications Research Group (CBA) that belongs to the Computer Architecture Department (DAC) at the Universitat Politècnica de Catalunya BarcelonaTech (UPC BarcelonaTech).

My expertise and research interests are in computer networks. I received my Ph.D. degree in Computer Science in October 2014 at UPC BarcelonaTech. My Ph.D. studies centered around the network traffic classification research field, focusing on the identification of applications in network traffic based on Machine Learning and Deep Packet Inspection techniques and the aspects related to the application of those techniques in backbone networks. In the past, I was also a visiting researcher at University of Napoli Federico II, Italy (2009) and at the National Institute of Informatics in Tokyo, Japan (2013).


NewValentín Carela-Español, Pere Barlet-Ros, Albert Bifet, Kensuke Fukuda. "A streaming flow-based technique for traffic classification applied to 12+1 years of Internet traffic", Telecommunication Systems (in press), Nov. 2015. [pdf] [doi] ©Springer

NewTomasz Bujlow, Valentín Carela-Español, Josep Solé-Pareta, and Pere Barlet-Ros: "A survey on Web Tracking: Mechanisms, implications, and defenses.", Under review, July 2015. [pdf] [arXiv]

Tomasz Bujlow, Valentín Carela-Español and Pere Barlet-Ros: "Independent Comparison of Popular DPI Tools for Traffic Classification", Computer Networks 76 (2015), pp. 75-89. [pdf] [doi] ©Elsevier

Valentín Carela-Español:"Network Traffic Classification: From Theory to Practice", Ph.D. thesis, Universitat Politècnica de Catalunya BarcelonaTech, October 2014. [pdf][slides]

Valentín Carela-Español, Tomasz Bujlow, and Pere Barlet-Ros: "Is Our Ground-Truth for Traffic Classification Reliable?", In Proceedings of 15th International Passive and Active Measurement Conference (PAM 14), Los Angeles, CA, USA, March 2014 and Lecture Notes in Computer Science, vol. 8362, 2014, pp. 98-108. [pdf] [doi] ©Springer

Tomasz Bujlow, Valentín Carela-Español, and Pere Barlet-Ros: "Extended Independent Comparison of Popular Deep Packet Inspection (DPI) Tools for Traffic Classification", Technical Report, UPC-DAC-RR-CBA-2014-1, Jan. 2014. [pdf]

Valentín Carela-Español, Pere Barlet-Ros, Oriol Mula-Valls, and Josep Solé-Pareta: "An automatic traffic classification system for network operation and management", Journal of Network and Systems Management, October 2013. [pdf] [doi] ©Springer

Juan Molina, Valentín Carela-Español, Ralf Hoffmann, Klaus Degner, and Pere Barlet-Ros. "Empirical analysis of traffic to establish a profiled flow termination timeout", In Proceedings of 9th IEEE International Wireless Communications and Mobile Computing Conference (IWCMC-TRAC), Cagliari, Italy, July 2013. [pdf] [doi] ©IEEE

Tomasz Bujlow, Valentín Carela-Español, and Pere Barlet-Ros: "Comparison of Deep Packet Inspection (DPI) tools for traffic classification", Technical Report, UPC-DAC-RR-CBA-2013-3, June 2013. [pdf]

Dimitri Papadimitriou, Florin Coras, Alberto Rodriguez, Valentin Carela, Davide Careglio, Lluís Fàbrega, Pere Vilà, Piet Demeester: "Iterative Research Method Applied to the Design and Evaluation of a Dynamic Multicast Routing Scheme", FP7 FIRE/EULER 2012: pp. 107-126 [doi]

Valentín Carela-Español, Pere Barlet-Ros, Albert Cabellos-Aparicio, and Josep Solé-Pareta: "Analysis of the impact of sampling on NetFlow traffic classification", Computer Networks 55 (2011), pp. 1083-1099. [pdf] [doi] ©Elsevier

Valentín Carela-Español, Pere Barlet-Ros, Marc Solé-Simó, Alberto Dainotti, Walter de Donato, and Antonio Pesacapé: "K-dimensional trees for continuous traffic classification", In Proceedings of International Workshop on Traffic Monitoring and Analysis (TMA), Zurich, Switzerland, April 2010 and Lecture Notes in Computer Science, vol. 6003, 2010, pp. 141-154. [pdf] [doi] ©Springer

Valentín Carela-Español, Pere Barlet-Ros, and Josep Solé-Pareta: "Traffic classification with Sampled NetFlow", Technical Report, UPC-DAC-RR-CBA-2009-6, Feb. 2009. [pdf]

Valentín Carela-Español and Pere Barlet-Ros: "Identification of network applications based on machine learning techniques", Technical Report, UPC-DAC-RR-CBA-2009-2, Feb. 2009. [pdf]

Pere Barlet-Ros, Valentín Carela-Español, Josep Solé-Pareta: "Identification of Network Applications based on Machine Learning Techniques", TERENA Networking Conference, Brugge, Belgium, May 2008. [pdf]

Research Projects

NOMADS: A novel paradigm for network monitoring and data sharing (MINECO, TEC2011-27474, 2011-2014).

SMARTxAC: Traffic monitoring and analysis system for the Catalan RREN (CESCA, 2004-2013).

COST-TMA: Traffic monitoring and analysis (COST, 2008-2012).

Research Stays

Internship at the Fukuda Lab in the National Institute of Informatics (NII) in Tokyo, Japan, under the supervision of Prof. Kensuke Fukuda. March 2013 - August 2013.

3rd TMA Phd School entitled "Traffic Understanding: From Traffic Classification to Quality of Experience"- Krakow, Poland. February 2012.

2nd TMA Phd School entitled "Bridging the gap between theory and practice in network monitoring and analysis"- Napoli, Italy. June 2011.

Short-Term Scientific Mission at the University of Napoli Federico II, Napoli, under the supervision of Dr. Alberto Dainotti and Prof. Antonio Pescape. June 2009 - July 2009.

Supervised Master Students

Juan Molina Rodriguez (Master thesis)

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