Welcome to the Open Networks and Big Data Lab, led by Prof. Lakshminarayanan Subramanian.

We are a team of researchers in the Courant Institute of Mathematical Sciences at New York University, focusing on fundamental and applied research in the broad areas of networked systems and machine learning/big data analytics. We solve real-world societal problems at scale, and extract and address the fundamental research questions underlying these problems as well as translate our ideas into practice for societal impact. The larger goal is to contribute to socio-economic development by designing innovative computing technologies for real world societal challenges. Our research philosophy places a strong emphasis on “end-to-end system design”, where we design, implement, deploy and evaluate our solutions in the real world and push successful ideas towards adoption at scale.

We are part of the NYU Systems group in the Computer Science Department.

Recent and Selected Publications

  • Fake vs Real Goods Problem: Microscopy and Machine Learning to the Rescue. Ashlesh Sharma, Lakshminarayanan Subramanian, Vidyuth Srinivasan, Vishal Kanchan. ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD) 2017. [pdf]
  • Identifying Unreliable and Adversarial Workers in Crowdsourced Labeling Tasks. Srikanth Jagabathula, Lakshminarayanan Subramanian, Ashwin Venkataraman (alphabetical order). Journal of Machine Learning Resarch (JMLR), 2017. [pdf]
  • More than a Feeling: The MiFace Framework for Defining Facial Communication. Crystal Butler, Stephanie Michalowicz, Lakshminarayanan Subramanian, Winslow Burleson. 30th ACM User Interface Software and Technology (UIST) Symposium, 2017. [pdf]
  • Learning Privacy Expectations by Crowdsourcing Contextual Informational Norms. Yan Shvartzshnaider, Schrasing Tong, Thomas Wies, Paula Kift, Helen Nissenbaum, Lakshminarayanan Subramanian, Prateek Mittal. Fourth AAAI Conference on Human Computation and Crowdsourcing (HCOMP 2016). [pdf]
  • Fine-Grained Dengue Forecasting using Telephone Triage Services Nabeel Abdur Rehman, Shankar Kalyanaraman, Talal Ahmad, Fahad Pervaiz, Umar Saif, Lakshminarayanan Subramanian. Science Advances. 08 July 2016. [pdf]
  • Predicting Socio-Economic Indicators using News Events. Sunandan Chakraborty, Ashwin Venkataraman, Srikanth Jagabathula, Lakshminarayanan Subramanian. KDD 2016. [pdf]
  • Adaptive Congestion Control for Unpredictable Cellular Networks. Yasir Zaki, Thomas Potsch, Jay Chen, Carmelita Goerg, Lakshminarayanan Subramanian. ACM SIGCOMM 2015. [pdf]

Full list of publications here.


  • [Sep 5, 2019] Talal Ahmad successfully defends his doctoral dissertation. Congratulations Dr. Ahmad!
  • [Apr 22, 2019] Ananth Balashankar and Shiva R. Iyer win the Harold Grad Memorial Prize and the Henning-Biermann Prize respectively. Congratulations both!
  • [Apr 15, 2019] Ulzee An accepts offer to join the Ph.D. program at UCLA. Congratulations Ulzee!
  • [Mar 27, 2019] Ulzee An wins the Master's Innovation Prize. Congratulations Ulzee!
  • [Feb 21, 2019] Ashwin Venkataraman accepts position as Assistant Professor at Jindal School of Management at the University of Texas, Dallas. Congratulations and all the best, Ashwin!
  • [Oct 15, 2018] Lakshmi Subramanian is promoted to Professor of Computer Science. Congratulations Prof. Subramanian!
  • [Apr 27, 2018] Ashwin Venkataraman successfully defends his doctoral dissertation. Congratulations Dr. Venkataraman!