Director, CRISP Center
Research group at Purdue
I am a Professor in the School of Electrical and Computer Engineering and the Department of Computer Science (by courtesy) at Purdue University in West Lafayette, Indiana. I am the founding Director of a university-wide resilience center CRISP, started in 2017. I received the Alexander von Humboldt Research Award (2018), the Adobe Faculty Award (2017), the AT&T Labs VURI Award (2016), the Google Faculty Award (2015), and the IBM Faculty Award (2014). I am an ACM Distinguished Scientist (2013), a Senior Member of IEEE (2007) and of ACM (2009), and a Distinguished Speaker for ACM (2012). I serve on the IEEE Computer Society Board of Governors for the 2017-19 term.
My research interests are in distributed systems and dependable computing. I am proudest of the 21 PhD students who have graduated from our research group and are in various stages of building wonderful careers in industry or academia. In our group of 12 graduate students, 3 undergraduate students, and 3 Research Scientists, we have far too much fun building and breaking real systems. Along the way, we have won or been runner up for 10 best papers at IEEE/ACM conferences.
I received the MS and PhD degrees from the University of Illinois, Urbana-Champaign in the Computer Science department, in 1998 and 2001, respectively. I worked with Prof. Ravishankar Iyer and Dr. Zbigniew Kalbarczyk there. My Ph.D. dissertation was on error detection protocols in distributed systems [ pdf ]. My undergraduate alma mater is the Indian Institute of Technology at Kharagpur where I did Computer Science and Engineering. I worked at the IBM T. J. Watson Research Center in Hawthorne, New York in the Distributed Messaging Systems group on a project called Gryphon in 2001.
If you want the gory details, here is the full CV (pdf) (html). [Last update: Apr 2019]
If you want a meandering look, here is the non-linear version of my bio. (html)
The above sums up our current research direction. We work on software systems to enable them to perform their functionality in the face of natural and malicious failures. We apply and adapt data analytic techniques to work with the noise of computer systems and at large system scales. Current application domains come from distributed software systems, embedded systems, cellular systems, and bioinformatics.
I am interested in the question of how to build heterogeneous large-scale distributed systems that are reliable. Since many business and life critical functions are being performed by distributed systems, they need to be reliable while meeting their performance goals. Thus, there is need for smart error detection, diagnosis and recovery protocols. There is need for architectures that can combine fault tolerance aspects with performance aspects in an adaptive manner, adapting to different user requirements and different runtime environments. I consider intrusions to be an increasingly important class of faults and we are looking at the design of intrusion tolerant systems.
Wireless networks of embedded nodes cooperating among themselves for information gathering and analysis are becoming an important platform in several domains, leading toward the vision of "Internet of Things". The nodes are placed in situ in the environment to be monitored and have the capacity for sensing, communication, computation and sometimes, mobility and actuation. Since the nodes have limited power resource, all the tasks need to be performed under power constraints. The reliability challenges come from the unpredictability of the environment in which the networks are based and the security challenges come from the fact that the networks are often deployed in open environments where network-based and physical compromise-based attacks are possible. I am investigating the issues in building embedded networks to meet high-level reliability requirements in the face of these challenges.
For details of my research projects, take a look at the home page of the Dependable Computing Systems Lab (DCSL), its Projects page, and the research overview document.
If you are interested in working in the research group, please take a look at the process for this outlined here.
Our funding comes from the National Science Foundation, Department of Defense (Army Research Lab, Missile Defense
Agency), Indiana 21st Century Research and Technology Fund, multiple private organizations (Northrop Grumman, IBM,
AT&T; previously from Lockheed Martin, Avaya, Tellabs, Motorola, Intel), and Purdue's Research Foundation.
Room 325 Electrical Engineering Bldg
Administrative Assistant: Mary-Ann Satterfield
Saurabh Bagchi [Contact info]
June 11, 2019
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