I am a research scientist at Nokia Bell Labs in Stuttgart, Germany. My research interests lie in the intersection of computer networks and distributed systems.
Currently, I am working on edge/cloud computing, confidential computing and decentralization.
I have been one of the main architects and developers of KNIX MicroFunctions, which is opensource [code].
I visited the International Computer Science Institute (ICSI)
at Berkeley from March 2014 until August 2014. I worked with Nicholas Weaver
on privacy issues on the web. During my visit, I developed Priv3+ as a
Firefox addon (which is now defunct; [code])
and later as a Google Chrome extension (which is now also defunct; [code]).
Priv3+ prevents third party tracking via cookies, but enables social networking features on websites without
requiring a blacklist.
During the summer of 2012, I was a research intern at Microsoft Research India
in Bangalore. I worked with Saikat Guha on a personal and privacy-preserving
(i.e., not talking with the cloud) digital assistant/recommendation system.
Publications
Refereed publications
Citadel: Protecting Data Privacy and Model Confidentiality for Collaborative Learning.
Chengliang Zhang, Junzhe Xia, Baichen Yang, Huancheng Puyang, Wei Wang, Ruichuan Chen, Istemi Ekin Akkus, Paarijaat Aditya, Feng Yan.
Proceedings of the ACM Symposium on Cloud Computing, ACM SoCC2021, Seattle, WA, USA and Virtual, November 2021. [pdf] [code]
Lessons Learned from Migrating Complex Stateful Applications onto Serverless Platforms.
Zewen Jin, Yiming Zhu, Jiaan Zhu, Dongbo Yu, Cheng Li, Ruichuan Chen, Istemi Ekin Akkus, Yinlong Xu.
Proceedings of the ACM SIGOPS Asia-Pacific Workshop on Systems (APSys), APSys 2021, Hong Kong, China, August 2021. [pdf]
Efficient GPU Sharing for Serverless Workflows.
Klaus Satzke, Istemi Ekin Akkus, Ruichuan Chen, Ivica Rimac, Manuel Stein, Andre Beck, Paarijaat Aditya, Manohar Vanga, Volker Hilt.
Proceedings of the ACM Workshop on High Performance Serverless Computing, ACM HiPS2021, Stockholm, Sweden, June 2021. [pdf] [code]
Will Serverless Computing Revolutionize NFV?. (invited paper)
Paarijaat Aditya, Istemi Ekin Akkus, Andre Beck, Ruichuan Chen, Volker Hilt, Ivica Rimac, Klaus Satzke, Manuel Stein.
Proceedings of the IEEE, doi: 10.1109/JPROC.2019.2898101, 2019. [pdf]
ApproxJoin: Distributed Approximate Joins.
Do Le Quoc, Istemi Ekin Akkus, Pramod Bhatotia, Spyros Blanas, Ruichuan Chen, Christof Fetzer, Thorsten Strufe.
Proceedings of the ACM Symposium on Cloud Computing, ACM SoCC2018, Carlsbad, CA, USA, October 2018. [pdf] [the morning paper] [code]
SAND: Towards High-Performance Serverless Computing.
Istemi Ekin Akkus, Ruichuan Chen, Ivica Rimac, Manuel Stein, Klaus Satzke, Andre Beck, Paarijaat Aditya, Volker Hilt.
Proceedings of the USENIX Annual Technical Conference, USENIX ATC2018, Boston, MA, USA, Jul 2018. [pdf] [code]
Towards Reliable Application Deployment in the Cloud.
Ruichuan Chen, Istemi Ekin Akkus, Bimal Viswanath, Ivica Rimac, Volker Hilt.
Proceedings of the ACM International Conference on Emerging Networking Experiments and Technologies, CoNEXT2017, Seoul/Incheon, South Korea, Dec 2017. [pdf]
Sieve: Actionable Insights from Monitored Metrics in Distributed Systems.
Joerg Thalheim, Antonio Rodrigues, Istemi Ekin Akkus, Pramod Bhatotia, Ruichuan Chen, Bimal Viswanath, Lei Jiao, Christof Fetzer.
Proceedings of the ACM/IFIP/USENIX Middleware 2017, Middleware2017, Las Vegas, NV, USA, Dec 2017. [pdf] [code]
The Case for a General and Interaction-based Third-party Cookie Policy.
Istemi Ekin Akkus, Nicholas Weaver.
Proceedings of the IEEE Workshop on Web 2.0 Security & Privacy, W2SP2015, San Jose, CA, USA, May 2015. [pdf] [code (Firefox)] [code (Chrome)]
SplitX: High-Performance Private Analytics.
Ruichuan Chen, Istemi Ekin Akkus, Paul Francis.
Proceedings of the ACM Special Interest Group on Data Communication, SIGCOMM2013, Hong Kong, China, August 2013. [pdf] [code]
Non-tracking Web Analytics.
Istemi Ekin Akkus, Ruichuan Chen, Michaela Hardt, Paul Francis, Johannes Gehrke.
Proceedings of the 19th ACM Conference on Computer and Communications Security, CCS2012, Raleigh, NC, USA, October 2012. [pdf]
Large-scale Incremental Data Processing with Change Propagation.
Pramod Bhatotia, Alexander Wieder, Istemi Ekin Akkus, Rodrigo Rodrigues, Umut A. Acar.
3rd USENIX Workshop on Hot Topics in Cloud Computing, HotCloud'11, Portland, OR, USA, June 2011. [pdf]
Peer-to-peer Multipoint Video Conferencing with Layered Video.
Istemi Ekin Akkus, Oznur Ozkasap, M. Reha Civanlar.
Journal of Network and Computer Applications, Volume 34, Issue 1, January 2011, pp. 137-150. (Extended version of ICIP2006 and PV2007 papers) [pdf]
Data Recovery for Web Applications.
Istemi Ekin Akkus, Ashvin Goel.
Proceedings of the 40th IEEE/IFIP International Conference on Dependable Systems and Networks, DSN2010, Chicago, IL, USA, June 2010. [pdf]
Multi-objective Optimization for Peer-to-Peer Multipoint Video Conferencing Using Layered Video.
Istemi Ekin Akkus, Oznur Ozkasap, M. Reha Civanlar.
Proceedings of the 16th International Packet Video Workshop, PV2007, Lausanne, Switzerland, November 2007. [pdf]
Peer-to-peer Multipoint Video Conferencing Using Layered Video.
Istemi Ekin Akkus, M. Reha Civanlar, Oznur Ozkasap.
Proceedings of the IEEE International
Conference on Image Processing, ICIP2006, Atlanta, GA, USA, October 2006. [pdf]
Secure Transmission of Video on an End System Multicast using Public Key Cryptography.
Istemi Ekin Akkus, Oznur Ozkasap, M. Reha Civanlar.
International Workshop on Multimedia, Representation and Security, MRCS2006, Istanbul, Turkey, Sep 2006.
Lecture Notes in Computer Science, vol. 4105, pp.
603-610, Springer-Verlag Heidelberg. [pdf]
Technical Reports
Cybercasing 2.0: You Get What You Pay For.
Jaeyoung Choi, Istemi Ekin Akkus, Serge Egelman, Gerald Friedland, Robin Sommer, Michael Carl Tschantz, Nicholas Weaver.
arXiv preprint arXiv:1811.06584, November 2018. [pdf, arXiv]
Formal Model and Verification of Privacy-preserving String Discovery for Mobile and Web Analytics.
Istemi Ekin Akkus.
Max Planck Institute for Software Systems Technical Report MPI-SWS-2014-006, September 2014. [pdf]
String Discovery for Private Analytics.
Istemi Ekin Akkus, Ruichuan Chen, Paul Francis.
Max Planck Institute for Software Systems Technical Report MPI-SWS-2013-006, November 2013. [pdf]
Other
Towards A Non-tracking Web.
Istemi Ekin Akkus.
Ph.D. thesis, Technical University of Kaiserslautern - Max Planck Institute for Software Systems, Mar 2016. [pdf]
Data Recovery for Web Applications.
Istemi Ekin Akkus.
Master of Applied Science thesis, University of Toronto, Toronto ON, September 2009. [pdf]
Peer-to-peer Multipoint Video Conferencing Using Layered Video.
Istemi Ekin Akkus.
Master of Science thesis, Koc University, Istanbul, Turkey, August 2007. [pdf]