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Niklas Carlsson

Associate Professor (Swedish: Docent+universitetslektor)
Linköping University, Dept of Comp & Info Science (IDA)


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Welcome!

I am an Associate Professor (Swedish: docent and universitetslektor) in Computer Science (IDA) at Linköping University, Sweden. My general research interests are design, modeling, and performance evaluation of distributed systems and networks.

News and updates:


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June 2014: "Geographically distributed clouds" paper accepted at IFIP Performance 2014
Our paper "Caching and Optimized Request Routing in Cloud-based Content Delivery Systems", which considers caching and request routing optimization in geographically distributed clouds, is accepted to Proc. IFIP Performance 2014.
Further reading: please see publications

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Apr/May 2014: "Dynamic content allocation" paper at IEEE INFOCOM 2014
Present our paper "Dynamic Content Allocation for Cloud-assisted Service of Periodic Workloads" at Proc. IEEE INFOCOM 2014.
Further reading: paper

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Apr. 2014: Research trip to Canada (UofS and UofC)

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Mar. 2014: "Scalable Multicore" paper in CCPE
Our paper "Characterizing the Scalability of a Web Application on a Multi-core Server" appears in Concurrency and Computation Practice and Experience (CCPE), Wiley. This paper should be of interest to anybody that wants to get the most out of their multicore system.
See publications for paper and details.

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Mar. 2014: "Third-party Identity Management" paper at PAM
Anna presented our paper "Third-party Identity Management Usage on the Web" at Proc. PAM 2014.
Further reading: paper

Oct. 2013: PhD defence in the Netherlands
External commitee member at Adele Lu Jia's PhD defence, Delft University of Technology, Delft, the Netherlands.

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Aug 2013: Best Paper Award at ACM FhMN
Our paper "Empowering the Creative User: Personalized HTTP-based Adaptive Streaming of Multi-path Nonlinear Video" is given the Best Paper Award in the ACM SIGCOMM Workshop on Future Human-Centric Multimedia Networking (FhMN) 2013 and will appear in a special issue of ACM CCR.
Further reading: paper


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Aug. 2013: Three papers accepted and presented at IEEE MASCOTS 2013
Our papers "Helping Hand or Hidden Hurdle: Proxy-assisted HTTP-based Adaptive Streaming Performance", "On Zipf Models for Probabilistic Piece Selection in P2P Stored Media Streaming", and "Revisiting Popularity Characterization and Modeling for User-generated Videos" were all accepted and presented at IEEE MASCOTS 2013.
See publications for papers and details.


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July 2013: The right to be forgotten
You have likely heard of the many people suffering from photos they wish never would have been posted online, or maybe even seen the much talked about suicide note video made by a girl that could not remove an online photo she wanted forgotten. Our paper "A Peer-to-Peer Agent Community for Digital Oblivion in Online Social Networks" presents a solution to help these people towards the right to be forgotten. (See publications for details)


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June 2013: ACM Greenmetrics 2013
For the fifth straight year I am co-organizing the GreenMetrics workshop collocated and sponsored by ACM SIGMETRICS. The workshop takes place at at CMU, Pittsburgh, PA, on June 17. We will have a great program with very good keynote speakers.
Further reading: workshop page


June 2013: PhD defence in Norway
External examiner at Tomas Kupka's PhD defence, Simula and University of Oslo, Norway.

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May 2013: Research visits to NICTA (Australia) and University of Auckland (New Zeeland)


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Mar 2013: Multicore paper accepted and presented at ACM/SPEC ICPE
Joint work "Improving the Scalability of a Multi-core Web Server", with Raoufehsadat Hashemian (University of Calgary), Diwakar Krishnamurthy (University of Calgary), and Martin Arlitt (HP Labs) presented at ACM/SPEC International Conference on Performance Engineering (ICPE).
Further reading: paper


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Mar. 2013: Accepted PAM paper on the much debated China Telecom Incident
Traffic interception using route hijacks is a huge threat to individuals, organizations, and entire countries. Using route hijacks miscreants can intentionally misdirect Internet traffic to take paths through their networks. With much sensitive information being carried over the Internet, this emerging global problem is becoming increasingly important to understand and address. In our paper "Characterizing Large-scale Routing Anomalies: A Case Study of the China Telecom Incident", which appeared in Proc. Passive and Active Measurement Conference (PAM), March 2013, we characterize and analyze a much debated such event. This work was also recently featured in a Citizen Lab blog post.
Further reading: paper, Citizen Lab blog


Feb 2013: First two community highlights features in IEEE STC-SC newsletter
Dr. Canturk Isci (IBM) and I have been working on a community highlight feature for the IEEE STCSC monthly newsletter. Our first two features highlight the research of Professor Magaret Martonosi (Princeton University) and Dr. Partha Ranganathan (Hewlett Packard Labs).
Further reading February issue


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Feb. 2013: Docent lecture
Exciting times, as I present my docent lecture and gets upgraded to Associate Professor (docent).


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Feb. 2013: Dynamic swarm management paper accepted and published in IEEE/ACM ToN
Our paper "Centralized and Distributed Protocols for Tracker-based Dynamic Swarm Management" appears in IEEE/ACM Transactions on Networking (ToN). (See publications for details)


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Jan/Feb. 2013: Power-law paper accepted and published in IEEE Network
Our paper "A Tale of the Tails: Power-laws in Internet Measurements" in which we look at power-laws in Internet measurements is published in IEEE Network.
(See publications for details)


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Jan/Feb. 2013: PC Meeting ACM SIGMETRICS 2013
I recently attended the PC meeting in Pittsburgh, PA. The conference will appear at CMU in June 2013.
Further reading: conference website


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Dec. 2012: "Scalable Anonymity Protocols" article published in Performance Evaluation
Overhead and scalability is an issue for many existing anonymity protocols, including Tor. Our most recent Performance Evaluation paper "Performance Modeling of Anonymity Protocols" presents the design and analysis of scalable anonymity protocols.
Further reading: paper


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Oct. 2012: Two papers accepted and presented at IEEE LCN 2012
Presented our papers "Dynamic File Bundling for Large-scale Content Distribution" and "Characterizing Cyberlocker Traffic Flows" at IEEE LCN. (See publications for details)


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Sept. 2012: Optimized tradeoffs between Cloud, P2P, and Servers
Present our paper "Tradeoffs in Cloud and Peer-assisted Content Delivery Systems" at IEEE International Conference on Peer-to-Peer Computing (P2P) 2012.
(See publications for details)


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Aug. 2012: Congrats Aniket and Youmna!
Two of the PhD students that I have been working with over last few years recently graduated: Aniket Mahanti (University of Calgary, Canada) and Youmna Borghol (UNSW and NICTA, Australia). Dr. Mahanti has taken a job as an assistant professor at University of Auckland, New Zeeland. Dr. Borghol is now a Data Analytics Manager at MediaCom, Australia.


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Aug. 2012: ACM KDD
Present our paper "The Untold Story of the Clones: Content-agnostic Factors that Impact YouTube Video Popularity", at the ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), Beijing, China. This work was done during Youmna Borghol's internship at Linkoping University.
Further reading: paper


Aug. 2012: File-hosting paper at IEEE MASCOTS 2012
Aniket presents our paper "Content Sharing Dynamics in the Global File Hosting Landscape" at IEEE MASCOTS. (See publications for details)



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July 2012: Research trip to Canada (UofS and UofC)


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June 2012: ACM Greenmetrics 2012
For the fourth straight year I am co-organizing the GreenMetrics workshop collocated and sponsored by ACM SIGMETRICS. The workshop takes place at Imperial College, London, England, on June 11. We will have a great program with very good keynote speakers.
Further reading: workshop page


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June 2012: Analytic BT-like VoD paper in IEEE/ACM ToN
Our paper "Insights on Media Streaming Progress using BitTorrent-like Protocols for On-Demand Streaming" appears in IEEE/ACM Transactions on Networking (ToN). (See publications for details)


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June 2012: Passive Crowd-based Monitoring paper at IEEE ICC 2012
Jerry presents our paper "Passive Crowd-based Monitoring of World Wide Web Infrastructure and its Performance" at IEEE ICC. (See publications for details)


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Mar. 2012: Zongpeng Li (University of Calgary, Canada) visits
During his visit, Professor Li gives a talk "The multiple unicast network coding conjecture and a geometric framework for studying it".


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Mar 2012: Local and Global BitTorrent Workload Dynamics paper at PAM 2012
Presented our paper "A Longitudinal Characterization of Local and Global BitTorrent Workload Dynamics" at PAM. (See publications for details)


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Jan/Feb. 2012: PC Meeting ACM SIGMETRICS 2012
I recently attended the PC meeting in New York, NY. The conference will take place at Imperial College, London, England in June 2012.
Further reading: conference website


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Nov/Dec. 2011: Research trip to Canada (UofS and UofC)


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Oct. 2011: Two papers at IFIP PERFORMANCE 2011
Our papers "Characterizing and Modeling Popularity of User-generated Videos" and "Characterizing the File Hosting Ecosystem: A View from the Edge" were both accepted and presented at IFIP PERFORMANCE 2011.
Further details: See publications for papers and datasets


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Oct. 2011: Bye Youmna!
Youmna Borghol, Ph.D. student (UNSW and NICTA, Australia) finishes up her six month internship (Apr. 2011 - Oct. 2011) with me and heads back to Australia to finish up her PhD thesis. You will be missed Youmna!


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Oct. 2011: Sebastien Ardon (NICTA, Australia) visits
During the visit, Dr. Ardon will talk about "Geolocating IP Addresses in Cellular Data Networks" and Youmna Borghol will present our joint paper "Characterizing and Modeling Popularity of User-generated Videos", which will appear in IFIP PERFORMANCE 2011 next week.
Further reading: paper


Sept. 2011: Peer discovery/mixing paper at IEEE P2P 2011
Presented our paper "Efficient and Highly Available Peer Discovery: A Case for Independent Trackers and Gossiping" at IEEE P2P. (See publications for details)


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Sept. 2011: Bye Ajay!
Ajay Gopinathan finishes up his Postdoc (July 2011 - Sept 2011) with me and heads of for Google, CA, USA. Good luck with the new job at Google Ayaj!


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2011: Intelligence Gathering and Control
Our paper "Characterizing Intelligence Gathering and Control on an Edge Network" appears in ACM TOIT.
(See publications for details)


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2011: Journal paper success
During 2011 we have great success with some of our journal submissions. Our two most recent papers "Characterizing Web-based Video Sharing Workloads" and "Characterizing Intelligence Gathering and Control on an Edge Network" appear in ACM TWEB and ACM TOIT, respectively.
(See publications for details)


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Jun/Jul. 2011: Research trip to Canada (UofS and UofC)


June 2011: ACM Greenmetrics 2011
For the third straight year I am co-organizing the GreenMetrics workshop collocated and sponsored by ACM SIGMETRICS, both at FCRC 2011. The workshop takes place in San Jose, CA, on June X.
Further reading: workshop page


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June 2011: Anirban Mahanti (NICTA, Australia) visits


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Mar/Apr. 2011: Research trip to Canada (UofS and UofC)


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Mar. 2011: Utilization paper at ACM/SPEC ICPE 2011
Presented our paper "Towards More Effective Utilization of Computer Systems" at ACM/SPEC ICPE. (See publications for details)


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Jan. 2011: CENIIT project award
My CENIIT funded project "Scalable and Efficient Content Distribution" starts (475 kSEK / year).
Further reading: ceniit project


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Nov-Jan. 2010/2011: Research trip to Canada (UofS and UofC)


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Sept. 2010: First day at Linköping University
After 2 great years at University of Calgary, I begin the next chapter in my academic career. First day as an Assistant Professor.


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NEWS: General note
I am always looking for new graduate students, as well as students interested in thesis projects and/or general research-oriented projects.
Further reading: positions and projects