amin ahsan ali

222 Dunn Hall
Memphis, TN 38152-3240

aaali at memphis dot edu

(901) 678-5907    (LAB)                                                                               

Research Theme

The current focus of my research is on real time inference of different user behavior and context from physiological measurements collected from body worn sensors. The goal being to design interventions for behavior modification.

I am currently a member of a multidisciplinary team of researchers spanning various computing disciplines and behavioral sciences is developing a general purpose framework called FieldStream that will make it possible for Body Area Wireless Sensor Network systems to provide long term unattended collection of objective, continuous, and reliable physiological/behavioral data from natural environments that can be used for conducting population based scientific studies. By making it possible to obtain scientifically valid objective data from the field, FieldStream promises to help solve several behavioral problems of critical importance to human society that have remained unanswered for lack of such data.

Past research: The focus of this research is on fundamental issues of coverage, connectivity, and deployment, with emphasis on optimality, localized design, and energy-efficiency.

We worked on two relatively new coverage models, Trap Coverage and Barrier Coverage. These coverage models enable us to design intrusion worst case guarantees on Quality of Surveillance. My research involves developing approximation algorithms for deployment related issues and protocols for lifetime maximization of sensor networks.

Research Group

I have been working as a RA under the supervision of Dr. Santosh Kumar in the WiSeMANet Labs in the department of Computer Science in the University of Memphis(UofM). I joined the lab in Fall 2008. We, in this lab, are interested in both the theoretical and systems research in Wireless Sensor and Ad-Hoc networks.



Real time Inference of behavior from physiological measurements

Bringing the Lab to the Field — A Week-long Wireless mHealth Field Study with an Addictive Population, under review ACM Wireless Health, 2012.


mpuff : Automated Detection of Cigarette Smoking from Respiration Measurements, ACM IPSN 2012


mConverse: Inferring Conversation Episodes from Respiratory Measurements Collected in the Field, In Proceedings of ACM Wireless Health, San Diego, CA. 2011. Nominated for Best Paper Award


Continuous Inference of Psychological Stress from Sensory Measurements Collected in the Natural Environment, In Proceedings of the 10th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN), Chicago, IL, 2011. Nominated for Best Paper Award


Demo Abstract: Online Detection of Speaking from Respiratory Measurement Collected in the Natural Environment, In Proceedings of the 10th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN), Chicago, IL, 2011.

Coverage & Connectivity

Barrier Coverage with Directional Sensors, Under review, IEEE Transactions On Network.


Maintaining Worst case Guarantee in Trading Off Quality of Tracking and Network Lifetime



Before joining the WiSeMANet Labs I have been involved in research in MANETs as well as Logic Design. Here is a list of a few selected publications:

Mobile Ad-hoc Networks

A Consensus–based –Exclusion Algorithm for Mobile Ad Hoc Networks, Elsevier Ad Hoc Networks, Volume 8, Issue 1, January 2010, pp. 30–45.

Maintaining A Binary Tree Structure for Mobile Ad hoc Computing, Proceedings of the 11th IEEE Symposium on Computers and Communications 2006 (ISCC 2006), Pula–Cagliari, Sardinia, Italy, June 26–29, 2006, pp. 201–206.

Distributed Allocation of Identical Resources in Mobile Ad hoc Networks, Proceedings of the 2nd Workshop on Resource Allocation in Wireless Networks 2006 (RAWNET 2006) in conjunction with the 4th IEEE International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks 2006 (WiOpt 2006), Boston, Massachusetts, April 3–7, 2006, pp. 1–10.

Asynchronous Leader Election in Mobile Ad hoc Networks”, Proceedings of the 2006 International Symposium on Frontiers in Networking with Applications (FINA 2006) in conjunction with the IEEE 20th International Conference Advanced Information Networking and Applications 2006 (AINA 2006), Vienna, Austria, April 18–20, 2006, pp. 827–831.

Logic Design

Realization of Digital Fuzzy Operations using Multi-Valued Fredkin Gates, International Conference on Computer Design (CDES’06) a part of WORLDCOMP’06, June 26-29, 2006, Las Vegas, USA.


A Method for Designing Decoded PLAs using Genetic Algorithms, accepted for publication in the Dhaka University Journal of Science, Dhaka, Bangladesh.


A Technique for Logic Design of Voltage-Mode Pass Transistor Based Multi-Valued

Multiple-Output Logic Circuits, in the Proceedings of IEEE International Symposium of Multi-valued Logic, (ISMVL) Japan, 2003.


As a Lecturer in the department of Computer Science and Engineering in University of Dhaka, Bangladesh I have taught undergraduate level courses, e.g. Formal Language and Automata Theory, Compiler Design and Discrete Mathematics.


I have worked as a reviewer for a number of conferences including IEEE PerCom 2012,   ACM ICDCN ’10, IEEE MASS, and MSN ’09.



At UofM, I've taken courses in Computer Science (Network Design and Performance Analysis, Advanced Topics in Algorithms, Data Mining, Software Engineering, Bio-informatics) and in Mathematics (Real Analysis, Inference Theory, Linear Models, Bayesian inference, Survival Analysis).


Here are some links to some useful resources and some of my favorite sites

Computational Geometry

Statistical Data Mining Tutorials

Pattern recognition and intelligent sensor machines

A Course on Kolmogorov Complexity and MDL


Doug reviews the Modern Library’s "Top 100 best English language novels of the 20th century

The Oldest Escher Collection on the Web

Lectures on Science and Religion at Hapmshire College

dictionary of symbols


and lastly, for someone interested about Bangladesh - my homeland, here is the Wikipedia entry and a link to a photo gallery.


Amin Ahsan Ali is a doctoral student in the Department of Computer Science of the University of Memphis, TN, where he is advised by Dr. Santosh Kumar. His research is funded through a Graduate Research Assistantship from the National Science Foundation. He works in Wireless Sensors and Mobile Ad Hoc Networks (WiSeMANet) Lab. He obtained his Master of Science and Bachelor degrees in Computer Science and Engineering from University of Dhaka, Dhaka, Bangladesh.

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