I am a PhD student in the department of Computer Science at Purdue University. I am working with Prof. Alex Pothen on Bioinformatics and parallel graph algorithms. I did my Bachelors in Computer Science and Engg. in the department of CSE at Bangladesh University of Engineering and Technology (BUET). 

I grew up in Ullapara, Sirajganj, a beautiful rural area in the northern part of Bangladesh.

Research

• High Performance Flow Cytometry: The immune system responds to various stimuli, diseases, and vaccines that an organism is subjected to. An important problem in biology therefore is to study these perturbations across conditions of interest, such as an infection, a drug's action, etc., based on the measured immunophenotypes. I investigate these responses of the immune system with automated algorithms, especially after invasion of diseases and application of treatments such as against leukemia, lymphoma, Alzheimers disease, diabetes, and AIDS. I have developed a complete pipeline to analyze  large volume of multi-parametric proteomics data from flow cytometry by developing algorithms covering (1) variance stabilizing data transformation, (2) robust clustering of immune cells to identify cell subsets, (3) matching cell clusters across samples from multiple conditions, (4) construction of templates by preserving the common expression patters across samples , and (5) sample classfiication on the measured phenotypes.
  

• Parallel Matching Algorithms: The algorithms to compute matchings in large graphs are difficult to parallelize. I have developed several classes of algorithms - covering both augmenting path, and push relabel based algorithms - for computing a maximum matching on a bipartite graph on multi-threaded architectures (e.g., Cray XMT, AMD Magny cours, and Intel Nehalem). I am working on parallel algorithms for the weighted matching.  

• Measuring Uncertainty in Evolutionary Trees: In evolutionary biology, substantial efforts have been given to assess the uncertainty in evolutionary trees arisen due to insufficient evidences, inaccurate models, and errors from multiple sources. Given that the conventional sequence bootstrap is insufficient to address this problem especially when data deviate from a model, I developed a robust variant of residual resampling to compute uncertainty in evolutionary trees and illustrated its use with analysis of genome-scale alignments of yeast.
  

Professional Experiences

• Research Assistant, Department Of Computer Science, Purdue University [Aug 09 - Current]
• Summer Intern, High Performace Computing , Pacific Northwest National Lab (PNNL), Richland, WA [Summer '10, Summer '11]
• Research Assistant, Department of Biological Science, Purdue University [Jan 09 - Aug 09]
• Teaching Assistant, Department of Mathematics, Purdue University [Aug 08 - Dec 08]
• Member, R&D, Commlink InfoTech Ltd. , Dhaka [Sep 06 - Jun 08]

Professional Associations

• Student Member, International Society for Computational Biology (ISCB)
  
• Student Member, Society of Industrial and Applied Mathematics (SIAM)
• Student Member,  Institute of Electrical and Electronics Engineers (IEEE)
  

Leadership Activities

• President, Purdue Bangladesh Student Association (BDSA) [Aug 12 - Current]
• Webmaster, Purdue Graduate Student Government (PGSG) [Aug 09 - April 11]
• Webmaster, Purdue Bangladesh Student Association (BDSA) [Aug 09 -Aug 12]

Awards and Honours

• IBM PhD Fellowship 2013-14.
  
• IEEE TCPP travel award for traveling to IPDPS '12, China.
• Nominated for Intel PhD Fellowship by Purdue University, 2012.
• Fellowship Incentive Grant, Purdue Graduate School, Fall 2010.
  
• Interdisciplinary Travel Award,  College of Science, Purdue University, to present a paper at WABI 2010, Liverpool, UK. [PDF]
• Research Fellowship, Purdue Research Foundation, 2009-2010.
  
• Deans Merit Award, Bangladesh University of Engineering & Technology (BUET), 2004-2006.
  
• 4^th position in HSC (~12^th grade public exam) and 8^th position in SSC (~10^th grade public exam) in the combined merit list at Rajshahi Public Education Board, Bangladesh (out of approx. 500,000 students).