- Algorithms
- Theory of Computations
- Data Mining
- Data Mining
- Pattern Recognition
- Design of Algorithms.
- Machine Learning
- Mining Association between Different Emotion Classes Present in Users Posts of Social Media; accepted for publication in “Social Network Analysis and Mining”; Publisher: Springer Nature, Scopus Indexed, Web of Science; UGC Care Listed; with Farha Naznin, Irani Hazarika and Dwipen Laskar.
- Grouping of Twitter users according to contents of their tweets; Indonesian Journal of Electrical Engineering and Computer Science; Vol:31; No:2; pg 876-884; with Farha Naznin. Scopus Indexed.
- Techniques for improving the performance of unsupervised approach to sentiment analysis; Indonesian Journal of Electrical Engineering and Informatics (IJEEI); Scopus Indexed; Vol 11 Issue 2; June 2023; Publisher: Institute of Advanced Engineering and Science (IAES) Indonesia; ISSN: 2089-3272; Impact Factor: 0.218; with Farha Naznin.
- FE-TAC: An Effective Document Classification Method Combining Feature Extraction and Feature Selection; Int. J. of Applied Decision Sciences; Pub: Inderscience; Scopus Indexed. January 2023; Vol: 1; with Ksh. Nareshkumar Singh, S. Dickeeta Devi, H. Mamata Devi. ; ISSN: 1755-8077.
- A novel approach for dimension reduction using word embedding: An enhanced text classification approach; International Journal of Information Management Data Insights; Volume 2, Issue 1, April 2022; Publisher - Elsevier; with Ksh. Nareshkumar Singh, S. Dickeeta Devi, H. Mamata Devi.
- Mining maximal frequent rectangles; Advances in Data Analysis and Classification (Springer); 4th October 2021. Vol – 16; Issue 3; with Irani Hazarika. Web of Science; Scopus, UGC Care, SCI-E.
- Interval Data Clustering: IOSR Journal of Computer Engineering; Vol 22: Issue 6; Ser 1: Nov-Dec 2020 with Irani Hazarika.
- Detecting Anomaly using Partitioning Clustering with Merging; ICIC EXPRESS LETTERS 2020; ISSN 1881-803x; volume 14, number 10, DOI: 10.24507/icicel.14.10.943 October 2020 with Fokrul Alom Mazarbhuiya1, M. Y. Alzahrani
- SCI-Tree: An Incremental Algorithm for Computing Support Counts of all Closed Intervals from an Interval Dataset; International Journal of Innovative Technology and Exploring Engineering (IJITEE)ISSN: 2278-3075, Volume-8 Issue-10, August 2019; with Dwipen Laskar and Naba Jyoti Sarmah. Scopus indexed.
- A new Semi-metric for Interval Data: International Journal of Recent Technology and Engineering (IJRTE); ISSN: 2277-3878, Volume-X, Issue-X, July 2019. with Irani Hazarika. Scopus indexed
- An efficient algorithm for mining closed frequent intervals; International Journal of Knowledge Engineering and Data Mining; Year 2018; Volume 5; Issue 3; Pages 222-240; Publisher: Inderscience Publishers (IEL); with Naba Jyoti Sarma; citations: 1
- A New Categorical Data Clustering Technique Based on Genetic Algorithm, International Journal of Applied Engineering Research; year 2017; Vol 12(22), pp 12075-12082; with Irani Hazarika and Dulumoni Das. Scopus indexed
- Mining Local Association Rules from Temporal Data Set, Lecture Notes in Computer Science (LNCS), Vol 3776, (Proceedings of PReMI05 (International Conference on Pattern Recognition and Machine Intelligence), IIT Delhi,India) 2009; with Fokrul Alom et.al; Scopus indexed
- Finding Calendar Based Periodic Patterns; Journal of Pattern Recognition Letters; Vol 29, Issue-9, 1st July 2008, 1274-1284; with F. A. Mazarbhuiya and H.K. Baruah.; citations: 51; Web of Science & Scopus indexed, SCIE, UGC CARE LIS
- An algorithm for discovering the closed frequent item sets in a large database, Journal of Experimental and Theoretical Artificial Intelligence, Vol 18, No. 4, Dec 2006, 481-499; with N. G. Singh, S.R.Singh and Bhanu Prasad. Citations: 6; Web of Science & Scopus indexed
- CloseMiner: Discovering frequent closed itemsets using frequent closed Tidsets, ICDM’05 (5th IEEE International Conference on Data Mining), Houston, Texas, USA, 27-30 Nov 2005; with G. Singh and S.R.Singh. citations: 21.; Scopus indexed
- Finding locally and periodically frequent sets and periodic association rules; Lecture Notes in Computer Science (LNCS), Vol 3776,(Proceedings of PReMI05 (International Conference on Pattern Recognition and Machine Intelligence), India) 2005, 576-582; with F. A. Mazarbhuiya and H.K. Baruah; citations: 38
- QROCK: A quick version of the ROCK algorithm for clustering of Categorical data, Journal of Pattern Recognition Letters, Vol-26, Issue-15, Nov 2005, pp 2364-2373; with M. Dutta. and A.K. Puzari. citations: 80; Scopus indexed, UGC Care List, Web of Science. (SCIE).
- Analysis with Computable Real Numbers, Golden Jubilee Volume of Gauhati University Journal of Science, 1998,115-121; with M. Dutta.
- Completeness of Computable Real numbers, Presented at the North-East Regional Conference on Mathematics, Assam Academy of Mathematics, April 1997; with M. Dutta.
- Basis for a vector space generated by Hamiltonian Cycles in a graph, Theoretical Computer Science, Allied Publishers, Proceedings of the 6th National Seminar on Theoretical Computer Science, Banasthali Vidyapith, Rajasthan, August 1996; with M. Dutta.
Lecturer in the Department of Mathematics, Assam Engineering College, Dec 1986 to Nov 1987.
Lecturer in the Department of Computer Science, Gauhati University, Nov 1987 to July 1994.
Reader in the Department of Computer Science, Gauhati University, July 1994 to August 2008.
Professor in the Department of Computer Science, Gauhati University, August 2008 till date.
Head, Dept of Computer Science: Sep 1997 to April 2017, Jan 2018 to December 2019.
Dean Faculty of Technology, G.U. - Dec 2014 to Feb 2016; March 2017 to April 2017.
Member, G.U. Court – Dec 2014 to Feb 2016
Chairperson, Internal Complaints Committee (ICC) from August 2017 to October 2021.
Warden, Gandhi Bhawan Research Scholars’ Hostel (Girls’) From January 2017 to April 2023.
Member, G.U. Court- From Dec 2022 to date
Member, Tender Committee, G.U. from 19th May 2023 to date.
Member, Executive Council, Gauhati University from 19th January 2024 to date.
Member, Construction Committee, G.U. from February 2024 to date.
Life time member of Assam Academy of Mathematics.
- Obtained National Merit Scholarship at HSLC Examination.
- Secured 1st class 1st position in M.Sc(Mathematics) in 1986 (batch 1983) and received Gold Medal.
- Visited Warsaw University, Poland under International Collaboration / Bilateral Exchange program of Indian National Science Academy and Polish Academy of Sciences from Aug 2007 to Nov 2007