Patents:

• Mobile Application Identification in Network Traffic via a Search Engine Approach,
  Gyan Ranjan, Alok Tongaonkar and Ruben Torres,
  Patent# 11057289, Grant Date: July 6, 2021.


• Systems and Methods for Modeling Catastrophic Scenarios,
  Gyan Ranjan, Nikhita Koul, Joshua Pyle and Morgan Herve-Mignucci,
  Filing Date: March 30, 2017.


• Predicting Mobile App Identification Rules based on Code Similarity,
  Gyan Ranjan, Ignacio Bermudez Corrales and Nikhita Koul,
  Filing Date: October 19, 2016.


• Systems and Methods for Creating Automatic Computer-Generated Classifications,
  Nikhita Koul and Gyan Ranjan,
  Patent# 10666675, Grant Date: May 26, 2020.


• Systems and Methods for Providing Computing Security by Classifying Organizations,
  Gyan Ranjan and Nikhita Koul,
  Patent# 10181039, Grant Date: January 15, 2019.


• Systems and Methods for Determining Security Risk Profiles,
  Gyan Ranjan,
  Filing Date: May 13, 2016.


• Systems and Methods for Collecting Organization-Specific Media Events,
  Gyan Ranjan,
  Filing Date: May 13, 2016.


• Systems and Methods for Automatically Inferring Brand Reputation Following Potentially Damaging Epochs,
  Gyan Ranjan,
  Filing Date: May 13, 2016.


• Systems and Methods for Automated Classification of Application Network Activity,
  Gyan Ranjan and Alok Tongaonkar,
  Patent# 10430442, Grant Date: October 1, 2019.


• Systems and Methods for Identifying Source Applications of Network Flows,
  Gyan Ranjan, Alok Tongaonkar, Hongyi Yao, Yong Liao and Z. Morley Mao,
  Filing Date: December 15, 2015.


• Mobile Application Identification in Network Traffic via a Search Engine Approach,
  Gyan Ranjan, Alok Tongaonkar and Ruben Torres,
  Patent# 9853876, Grant Date: December 26, 2017.


• Method and Apparatus for Resolving Geo-Identity,
  Juong Sik-Lee, Deepti Chafekar, Umesh Chandra and Gyan Ranjan,
  Patent# WO2012172160 A1, Grant Date: December 20, 2012.

Journal Publications:

• Most, And Least, Compact Spanning Trees of a Graph
  Gyan Ranjan, Nishant Saurabh and Amit Ashutosh
  [On arXiv: arXiv 2206.07104]


• Incremental Computation of Pseudo-Inverse of Laplacian: Theory and Applications
  Gyan Ranjan, Zhi-Li Zhang and Daniel Boley,
  Lecture Notes in Computer Science, 8881:729-749, Springer, 2014 [Proceedings of the COCOA 2014].
  [On arXiv: arXiv 1304.2300]


• Geometry of Complex Networks and Topological Centrality,
  Gyan Ranjan and Zhi-Li Zhang,
  Physica A: Statistical Mechanics and its Applications, 392:3833-3845, Elsevier, May 18, 2013.
  [On arXiv: arXiv 1107.0989]


• Are Call Detail Records Biased for Sampling Human Mobility?,
  Gyan Ranjan, Hui Zang, Zhi-Li Zhang and Jean Bolot
  ACM SIGMobile Mobile Computing and Communications Review (MC2R), 16(3):33-44, July, 2012.


• Commute Times for a Directed Graph using an Asymmetric Laplacian,
  Daniel Boley, Gyan Ranjan and Zhi-Li Zhang,
  Linear Algebra and its Applications, 435(2):224-242, Elsevier, July 15, 2011.
  [Tech. Report Version]

Conferences and Workshops:

• On Virtual Id Assignment in Networks for High Resilience Routing: A Theoretical Framework,
  Gyan Ranjan, Tu N. Nguyen, Hesham Mekky and Zhi-Li Zhang
  Proceedings of the IEEE Global Communications Conference, IEEE GLOBECOM, 2020, December 07-11, 2020.


• Approximate Matching of Persistent Lexicon using Search-Engines for Classifying Mobile App Traffic,
  Gyan Ranjan, Alok Tongaonkar and Ruben Torres,
  Proceedings of the 35th Annual IEEE International Conference on Computer Communications, IEEE INFOCOM, 2016, April 11, 2016.


• SAMPLES: Self Adaptive Mining of Persistent LExical Snippets for Classifying Mobile Application Traffic,
  Hongyi Yao, Gyan Ranjan, Alok Tongaonkar, Yong Liao and Z. Morley Mao,
  Proceedings of the 21st Annual International Conference on Mobile Computing and Networking, ACM MobiCom, 2015, September 07-11, 2015.
  [Presentation] [Slides]


• Computing the Pseudo-Inverse of a Graph's Laplacian using GPUs,
  Nishant Saurabh, Anna Lucia Varbanescu and Gyan Ranjan,
  Proceedings of the IEEE Large-Scale Parallel Processing Workshop, Held in conjunction with IEEE IPDPS, May 25-29, 2015.


• Per-user Policy Enforcement on Mobile Apps through Network Functions Virtualization,
  Amedeo Sapio, Yong Liao, Mario Baldi, Gyan Ranjan,
  Fulvio Risso, Alok Tongaonkar, Ruben Torres and Antonio Nucci,
  Proceedings of the 9th ACM Workshop on Mobility in the Evolving Internet Architecture, September 11, 2014.


• MAPPER: a Mobile Application Personal Policy Enforcement Router for Enterprise Networks,
  Amedeo Sapio, Yong Liao, Mario Baldi, Gyan Ranjan,
  Fulvio Risso, Alok Tongaonkar, Ruben Torres and Antonio Nucci,
  Proceedings of the European Workshop on Software Defined Networking (Demo), September 1-3, 2014.


• When Affinity Meets Resistance:
  On the Topological Centrality of Edges in Complex Networks,
  Gyan Ranjan, Zhi-Li Zhang and Hesham Mekki,
  Talk at International Workshop on Complex Systems and Networks, IMA Special Workshop, September 5-7, 2012.


• On Estimating Hitting and Commute Times in Large Dense Digraphs,
  Gyan Ranjan, Zhi-Li Zhang and Daniel Boley,
  Talk at SIAM Annual Meeting (AN12), July 9-13, 2012.


• Unveiling Locations in Geo-spatial Documents,
  Gyan Ranjan, Juong-Sik Lee, Deepti Chafekar and Umesh Chandra,
  Poster-paper at ACM SIGSPATIAL GIS, November 1-4, 2011.
  [Poster]


• On the von Luxburg Approximation for Hitting and Commute Times in Large Dense Digraphs,
  Gyan Ranjan, Zhi-Li Zhang and Daniel Boley,
  Poster at IMA Workshop on Large Graphs: Modeling, Algorithms and Applications, October 24-28, 2011.


• How to Glue a Robust Smart-Grid?
  A " Finite-Network " Theory for Interdependent Network Robustness,
  Gyan Ranjan and Zhi-Li Zhang,
  7th Annual Cyber Security and Information Intelligence Research workshop, October 12-14, 2011.


• A Geometric Approach to Robustness in Complex Networks,
  Gyan Ranjan and Zhi-Li Zhang,
  Simplex 2011 workshop in conjunction with IEEE ICDCS, June 24, 2011.


• Un-Zipping Cellular Infrastructure Locations via User Geo-intent,
  Gyan Ranjan, Zhi-Li Zhang, Supranamaya Ranjan, Ram Keralapura and Joshua Robinson,
  IEEE INFOCOM Mini-Conference, April 10, 2011.


• Generalized Laplacians and First Transit Times for Directed Graphs,
  Daniel Boley, Gyan Ranjan and Zhi-Li Zhang,
  SIAM conference on Applied Linear Algebra, October 2009.


• METASIS: A Meta Heuristic based Logic Optimizer,
  Gyan Ranjan, Pankaj Kumar and Prosenjit Gupta,
  50th Midwest symposium on Circuits and Systems, August 5-10, 2007.
  [doi:10.1109/MWSCAS.2007.4488825]

Technical Reports:

• Mapping Cellular Data Service Network Infrastructure via Geo-intent Inference,
  Gyan Ranjan, Zhi-Li Zhang, Supranamaya Ranjan, Ram Keralapura and Joshua Robinson,
  Tech. report, May 2010.