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Nikolaos Laoutaris

Telefónica I+D, S.A.U.
Senior Researcher
Internet Scientific Group

Torre Telefónica Diagonal 00, Pl. Ernest Lluch, 5, 08019 Barcelona
E-mail:  
Phone:  +34 931233057

Biography


Nikolaos  Laoutaris is a senior researcher at the Internet Scientific Group of Telefonica Research in Barcelona. Prior to joining the Barcelona lab he was a postdoc fellow at Harvard University and a Marie Curie postdoc fellow at Boston University. He got his PhD in computer science from the University of Athens in 2004. More in LinkedIn profile.



NEW! PhD position available at Telefonica. Details and application instructions here.

Recent Publications


      
  • NEW! B. Cici, E. Frias-Martinez, N. Laoutaris, “A tale of 2 continents and 4 cities about the influence of demographics and social constraints on ride-sharing,”  arXiv:1305.3876. [full version]
  • NEW! J. Mikians, L. Gyarmati, V. Erramilli, N. Laoutaris, “Crowd-assisted Search for Price Discrimination in E-Commerce: First results,”  ACM CoNEXT'13. [full version]
  • NEW! C. Rossi, N. Vallina-Rodriguez, V. Erramilli, Y. Grunenberger, L. Gyarmati, N. Laoutaris, R. Stanojevic, K. Papagiannaki, P. Rodriguez, “3GOL: Power-boosting ADSL using 3G OnLoading,”  ACM CoNEXT'13.
  • B. Cici, A. Markopoulou, E. Frias-Martinez, N. Laoutaris, “Quantifying the Potential of Ride-Sharing using Call Description Records,” in Proc. of ACM HotMobile'13. [pdf]
  • J. Mikians, L. Gyarmati, V. Erramilli, N. Laoutaris, “Detecting price and search discrimination on the Internet,” in Proc. of ACM HotNets'12. [pdf]
  • N. Vallina, L. Gyarmati, Y. Grunenberger , R. Stanojevic, V. Erramilli, N. Laoutaris, K. Papagiannaki, “When David can help Goliath: the case for cellular augmentation of wired networks,” in Proc. of ACM HotNets'12. [pdf]
  • T. Lauinger, N. Laoutaris, P. Rodriguez, T. Strufe, E. Biersack, E. Kirda, “Privacy Risks in Named Data Networking: What is the Cost of Performance?,” Editorial note ACM Comp. Comm. Rev., Oct. 2012. [pdf]
  • L. Gyarmati, R. Stanojevic, M. Sirivianos, N. Laoutaris, “Sharing the Cost of Backbone Networks: Cui Bono?,” in Proc. of ACM IMC'12. [pdf]
  • S. Traverso, K. Huguenin, I. Trestian, V. Erramilli, N. Laoutaris and K. Papagiannaki, “TailGate: Handling long-tail content with a little help from friends” in Proc. of WWW'12. [pdf]
  • J. Otto, R. Stanojevic, N. Laoutaris, “Temporal Rate Limiting: cloud elasticity at a flat fee,” in Proc. of NetEcon'12. [pdf]
  • N. Laoutaris, M. Sirivianos, X. Yang, P. Rodriguez, “Inter-Datacenter Bulk Transfers with NetStitcher,” in Proc. of ACM SIGCOMM'11. [pdf]
  • E. Goma, M. Canini, A. Lopez, N. Laoutaris, D. Kostic, P. Rodriguez, R. Stanojevic, P. Yague, “Insomnia in the Access or How to Curb Access Network Related Energy Consumption,” in Proc. of ACM SIGCOMM'11. [pdf]
  • R. Cuevas, N. Laoutaris, X. Yang, G. Siganos, P. Rodriguez, “Deep Diving into BitTorrent Locality,” in Proc. of IEEE INFOCOM'11. [full version]
  • R. Stanojevic, N. Laoutaris, P. Rodriguez, “On Economic Heavy Hitters: Shapley value analysis of 95th-percentile pricing,” in Proc. of ACM IMC'10[pdf]
  • J.-M. Pujol, V. Erramilli, G. Siganos, X. Yang, N. Laoutaris, P. Chhabra, P. Rodriguez,  “The Little Engine(s) that could: Scaling Online Social Networks,” in Proc. of ACM SIGCOMM'10[pdf]
  • N. Laoutaris, G. Smaragdakis, P. Rodriguez, R. Sundaram,  “Delay Tolerant Bulk Data Transfers on the Internet,” in Proc. of ACM SIGMETRICS'09. [pdf]
  • V. Valancius, N. Laoutaris, L. Massoulie, C. Diot, P. Rodriguez, “Greening the Internet with Nano Data Centers,” in Proc. of ACM CoNEXT'09. [pdf]
  • N. Laoutaris, P. Rodriguez, “Good Things Come to Those Who (Can) Wait or How to Handle Delay Tolerant Traffic and Make Peace on the Internet,” in Proc. of ACM HotNets'08. [pdf]
  • N. Laoutaris, D. Carra, P. Michardi, “Uplink Allocation Beyond Choke/Unchoke or How to Divide and Conquer Best,” in Proc. of ACM CoNEXT'08. [pdf]
  • G. Smaragdakis, V. Lekakis, N. Laoutaris, A. Bestavros, J. Byers, M. Roussopoulos, “The EGOIST Overlay Routing System,” in Proc. of ACM CoNEXT'08. [pdf]
  • N. Laoutaris, L. Poplawski, R. Rajaraman, R. Sundaram, and S.-H. Teng, “Bounded Budget Connection (BBC) games or How to make friends and influence people, on a budget,” in Proc. of ACM PODC'08[full]  

View All Publications


Professional Activities


      
  • TPC member NSDI'14
  • TPC member W-PIN+NetEcon'13
  • TPC member ACM SIGCOMM'13, 11
  • TPC member ACM IMC'11
  • TPC member ACM CoNEXT'13,'11,'10 '09
  • TPC member IEEE INFOCOM'13, '12, '11, '10,'09
  • TPC member IPDPS'10, MMCN'09.
  • Area editor ACM SIGCOMM Computer Communicaions Review
  • Associate editor Computer Networks Journal 2009-2010

 


View All Professional Activities


Research Interest


      

My general research interests are on system, algorithmic, economic and performance evaluation aspects of computer networks and distributed systems with emphasis on content distribution, network economics, energy efficient computing, P2P, and social networks.


Public Documents


Publications


Journal Publications


      


Book Chapters


      


Conference and Workshop Papers


      

INTELLIGENT TRANSPORTATION


  • NEW! B. Cici, E. Frias-Martinez, N. Laoutaris, “A tale of 2 continents and 4 cities about the influence of demographics and social constraints on ride-sharing,”  arXiv:1305.3876. [full version]
  • B. Cici, A. Markopoulou, E. Frias-Martinez, N. Laoutaris, “Quantifying the Potential of Ride-Sharing using Call Description Records,” in Proc. of ACM HotMobile'13. [pdf]

 

BULK TRANSFERS ON THE INTERNET


  • N. Laoutaris, M. Sirivianos, X. Yang, P. Rodriguez, “Inter-Datacenter Bulk Transfers with NetStitcher,” in Proc. of ACM SIGCOMM'11. [pdf]
  • N. Laoutaris, G. Smaragdakis, P. Rodriguez, R. Sundaram,  “Delay Tolerant Bulk Data Transfers on the Internet,” in Proc. of ACM SIGMETRICS'09. [pdf
  • N. Laoutaris, P. Rodriguez, “Good Things Come to Those Who (Can) Wait or How to Handle Delay Tolerant Traffic and Make Peace on the Internet,” in Proc. of ACM HotNets-VII, Calgary, Canada, Oct. 2008. [pdf].

 

SOCIAL NETWORKS


  • S. Traverso, K. Huguenin, I. Trestian, V. Erramilli, N. Laoutaris and K. Papagiannaki, “TailGate: Handling long-tail content with a little help from friends” in Proc. of WWW'12. [pdf]
  • J.-M. Pujol, V. Erramilli, G. Siganos, X. Yang, N. Laoutaris, P. Chhabra, P. Rodriguez,  “The Little Engine(s) that could: Scaling Online Social Networks,” in Proc. of ACM SIGCOMM'10[pdf]


ENERGY EFFICIENCY


  • E. Goma, M. Canini, A. Lopez, N. Laoutaris, D. Kostic, P. Rodriguez, R. Stanojevic, “Insomnia in the Access or How to Curb Access Network Related Energy Consumption,” in Proc. of ACM SIGCOMM'11.
  • V. Valancius, N. Laoutaris, L. Massoulie, C. Diot, P. Rodriguez, “Greening the Internet with Nano Data Centers,” in Proc. of ACM CoNEXT'09. [pdf]
  • N. Laoutaris, P. Rodriguez, L. Massoulie, “ECHOS: edge capacity hosting overlays of nano data centers,” ACM SIGCOMM Computer Communication Review, vol. 38, no. 1, pp.51-54,  Jan. 2008. [pdf]

 

NETWORK ECONOMICS


  • NEW! J. Mikians, L. Gyarmati, V. Erramilli, N. Laoutaris, “Crowd-assisted Search for Price Discrimination in E-Commerce: First results,”  ACM CoNEXT'13. [full version]
  • J. Mikians, L. Gyarmati, V. Erramilli, N. Laoutaris, “Detecting price and search discrimination on the Internet,” in Proc. of ACM HotNets'12. [pdf]
  • L. Gyarmati, R. Stanojevic, M. Sirivianos, N. Laoutaris, “Sharing the Cost of Backbone Networks: Cui Bono?,” in Proc. of ACM IMC'12. [pdf]
  • L. Gyarmati, M. Sirivianos, N. Laoutaris, “Sharing the Cost of Backbone Networks: Simplicity vs. Precision,” in Proc. of NetEcon'12. [pdf]
  • J. Otto, R. Stanojevic, N. Laoutaris, “Temporal Rate Limiting: cloud elasticity at a flat fee,” in Proc. of NetEcon'12. [pdf]
  • R. Stanojevic, N. Laoutaris, P. Rodriguez, “On Economic Heavy Hitters: Shapley value analysis of 95th-percentile pricing,” in Proc. of ACM IMC'10. [pdf]  
  • J. Londoño, A. Bestavros, N. Laoutaris, “Trade & Cap: A Customer-Managed, Market-Based System for Trading Bandwidth Allowances at a Shared Link,” in Proc. of NetEcon'10. [pdf]
  • P. Chhabra, N. Laoutaris, P. Rodriguez, and R. Sundaram, “Home is where the (Fast) Internet is: Flat-rate Compatible Incentives for Reducing Peak Load,” ACM SIGCOMM Workshop on Home Networking (HomeNets’10), 2010. [pdf]

 

WIRELESS/MOBILE


  • NEW! C. Rossi, N. Vallina-Rodriguez, V. Erramilli, Y. Grunenberger, L. Gyarmati, N. Laoutaris, R. Stanojevic, K. Papagiannaki, P. Rodriguez, “3GOL: Power-boosting ADSL using 3G OnLoading,”  ACM CoNEXT'13.
  • N. Vallina, L. Gyarmati, Y. Grunenberger , R. Stanojevic, V. Erramilli, N. Laoutaris, K. Papagiannaki, “When David can help Goliath: the case for cellular augmentation of wired networks,” in Proc. of ACM HotNets'12. [pdf]

 

BITTORRENT


  • R. Cuevas, N. Laoutaris, X. Yang, G. Siganos, P. Rodriguez, “Deep Diving into BitTorrent Locality,” in Proc. of IEEE INFOCOM'11. [full version]
  • N. Laoutaris, D. Carra, P. Michardi, “Uplink Allocation Beyond Choke/Unchoke or How to Divide and Conquer Best,” in Proc. of ACM CoNEXT'08. [pdf]


 
OVERLAY CONSTUCTION


  • N. Laoutaris, L. Poplawski, R. Rajaraman, R. Sundaram, and S.-H. Teng, “Bounded Budget Connection (BBC) games or How to make friends and influence people, on a budget,” in Proc. of  ACM PODC'08, [full version] from arXiv. 
  • G. Smaragdakis, V. Lekakis, N. Laoutaris, A. Bestavros, J. Byers, M. Roussopoulos, “The EGOIST Overlay Routing System,” in Proc. of ACM CoNEXT'08. [pdf] [Long version in ACM/IEEE Transactions on Networking].
  • G. Smaragdakis, N. Laoutaris, P. Michiardi, A. Bestavros, J. Byers, M. Roussopoulos, “Swarming on optimized graphs for n-way broadcast,” in Proc. of IEEE INFOCOM'08, Phoenix, AZ, 2008. [pdf] [Long version in IEEE Transactions on Parallel and Distributed Systems].
  • N. Laoutaris, G. Smaragdakis, A. Bestavros, and J. Byers, “Implications of selfish neighbor selection in overlay networks,” in Proc. of IEEE INFOCOM ’07, Anchorage, AK, May 2007. [pdf]


    REPLICATION

  • G. Smaragdakis, N. Laoutaris, K. Oikonomou, I. Stavrakakis, and A. Bestavros,  “Distributed Server Migration for Scalable Internet Service Deployment,” IEEE/ACM Transactions on Networking, conditionally accepted, 2009.
  • N. Laoutaris, G. Smaragdakis, K. Oikonomou, I. Stavrakakis, and A. Bestavros, “Distributed placement of service facilities in large-scale networks,” in Proc. of IEEE INFOCOM ’07, Anchorage, AK, May 2007. [pdf]
  • N. Laoutaris, O. Telelis, V. Zissimopoulos, and I. Stavrakakis, “Distributed selfish replication,” IEEE
    Transactions on Parallel and Distributed Systems
    , vol. 17, no. 12, pp. 1401–1413, Dec. 2006. [pdf]
  • N. Laoutaris, V. Zissimopoulos, and I. Stavrakakis, “On the optimization of storage capacity allocation for
    content distribution,” Computer Networks, vol. 47, no. 3, pp. 409–428, Feb. 2005.
  • N. Laoutaris, V. Zissimopoulos, and I. Stavrakakis, “Joint object placement and node dimensioning for internet content distribution,” Information Processing Letters, vol. 89, no. 6, pp. 273–279, Mar. 2004. [pdf]
  • N. Laoutaris, O. Telelis, V. Zissimopoulos, and I. Stavrakakis, “Local utility aware content replication,” in Proc. of IFIP Networking ’05, Waterloo, Canada, May 2005.
  • N. Laoutaris, V. Zissimopoulos, and I. Stavrakakis, “Storage capacity allocation algorithms for hierarchical
    content distribution,” in Proc. of IFIP Net-Con ’04, Palma de Mallorca, Spain, Nov. 2004.
  • N. Laoutaris, A. Panagakis, and I. Stavrakakis, “Content distribution through autonomic content and storage management,” in Proc. WAC ’04, Berlin, German, Oct. 2004.


    CACHING

  • T. Lauinger, N. Laoutaris, P. Rodriguez, T. Strufe, E. Biersack, E. Kirda, “Privacy Risks in Named Data Networking: What is the Cost of Performance?,” Editorial note ACM Comp. Comm. Rev., Oct. 2012. [pdf]
  • N. Laoutaris, G. Zervas, A. Bestavros, and G. Kollios, “The cache inference problem and its application to
    content and request routing,” in Proc. of IEEE INFOCOM ’07, Anchorage, AK, May 2007. [pdf]
  • N. Laoutaris, G. Smaragdakis, A. Bestavros, and I. Stavrakakis, “Mistreatment in distributed caching groups: Causes and implications,” in Proc. of IEEE INFOCOM ’06, Barcelona, Spain, 2006. [pdf]
  • N. Laoutaris, G. Smaragdakis, A. Bestavros, I. Matta, and I. Stavrakakis, “Distributed selfish caching,” IEEE
    Transactions on Parallel and Distributed Systems
    , vol. 18, no. 10, Oct. 2007. [pdf]
  • N. Laoutaris, “A closed-form method for LRU replacement under generalized power-law demand,” 2007, arXiv:0705.1970v1 [cs.DS]. [ps]
  • G. Smaragdakis, N. Laoutaris, A. Bestavros, I. Matta, and I. Stavrakakis, “Mistreatment-resilient distributed
    caching,” Computer Networks, vol. 51, no. 11, pp. 2917–2937 , 2007.
  • G. Smaragdakis, N. Laoutaris, I. Matta, A. Bestavros, and I. Stavrakakis, “A feedback control approach to
    mitigating mistreatment in distributed caching groups,” in Proc. of IFIP Networking ’06, Coimbra, Portugal,
    May 2006.
  • N. Laoutaris, H. Che, and I. Stavrakakis, “The LCD interconnection of LRU caches and its analysis,”
    Performance Evaluation, vol. 63, no. 7, pp. 609–634, July 2006. [pdf]
  • E. Balafoutis, A. Panagakis, N. Laoutaris, and I. Stavrakakis, “Study of the impact of replacement granularity and associated strategies on video caching,” Cluster Computing, vol. 8, no. 1, pp. 89–100, Jan. 2005.
  • N. Laoutaris, S. Syntila, and I. Stavrakakis, “Meta algorithms for hierarchical web caches,” in Proc. IEEE
    IPCCC ’04
    , Phoenix, Arizona, Apr. 2004. [pdf]
  • E. Balafoutis, A. Panagakis, N. Laoutaris, and I. Stavrakakis, “The impact of replacement granularity on video caching,” in Proc. IFIP Networking ’02, Pisa, Italy, May 2002.


    MULTIMEDIA STREAMING

  • C. C. Vassilakis, N. Laoutaris, and I. Stavrakakis, “On the Impact of Playout Scheduling on the Performance of Peer-to-Peer Live Streaming,” Computer Networks, Vol. 53, No. 4, pp. 456-469, 2009.
  • C. C. Vassilakis, N. Laoutaris, and I. Stavrakakis, “The impact of playout policy on the performance of P2P
    live streaming,” in Proc. of SPIE/ACM MMCN ’08, San Jose, California, Jan 2008. [pdf]
  • N. Laoutaris, B. V. Houdt, and I. Stavrakakis, “Optimization of a packet video receiver under different levels of delay jitter: An analytical approach,” Performance Evaluation, vol. 55, no. 3-4, pp. 251–275, Feb. 2004. [pdf]
  • N. Laoutaris and I. Stavrakakis, “An analytical design of optimal playout schedulers for packet video
    receivers,” Computer Communications, vol. 26, no. 4, pp. 294–303, Mar. 2003.
  • N. Laoutaris and I. Stavrakakis, “Intrastream synchronization for continuous media streams: A survey of playout schedulers,” IEEE Network Magazine, vol. 16, no. 3, May 2002. [pdf]
  • N. Laoutaris, G. Boukeas, and I. Stavrakakis, “Design of optimal playout schedulers for packet video
    receivers,” in Proc. QofIS ’01, Coimbra, Portugal, Sept. 2001.
  • N. Laoutaris and I. Stavrakakis, “Adaptive playout strategies for packet video receivers with finite buffer
    capacity,” in Proc. IEEE ICC ’01, Helsinki, Finland, June 2001.
  • N. Karelos, N. Laoutaris, P. Balaouras, and I. Stavrakakis, “Endsystem performance issues for continuous media streaming applications,” in Proc. ATM & IP, Ilkley, West Yorkshire, U.K, July 2000.


    OTHER

  • C. Xenakis, N. Laoutaris, L. Merakos, and I. Stavrakakis, “A generic characterization of the overheads imposed by IPsec and associated cryptographic algorithms,” Computer Networks, vol. 50, no. 17, pp. 3225–3241, Dec.
    2006.
  • N. Kranitis, A. Merentitis, N. Laoutaris, G. Theodorou, A. Paschalis, D. Gizopoulos, and C. Halatsis,
    “Optimal periodic testing of intermittent faults in embedded pipelined processor applications,” in Proc. of DATE ’06, Munich, Germany, Mar. 2006.



Proffesional Activities


  • TPC member: CoNEXT'10, CoNEXT'09, INFOCOM'11, INFOCOM'10, INFOCOM'09, IPDPS'10, MMCN'09, MoViD'09, NetDB'08, LANMAN'08, NETCOOP'08, ComP2P'08, COPS'08.
  • Associate editor of COMPUTER NETWORKS journal, Elsevier.



Press/Awards


  • Our measurement study on price discrimination in e-commerce in Wall Street Journal[link].[
  • NANODATACENTERS on Rackspace news [link].[
  • 01/08/2009]: Our article "Deep Diving into BitTorrent Locality" mentioned in MIT's Technology Review Blog [link]
  • [16/06/2008]: Our work on the EU project NANODATACENTERS appears in slashdot [link].



  • My Digital Identity




    Last Updated 2/27/2014 12:29:08 PM