IITKGP

Research Areas

I am broadly interested in Machine Learning, with specific interests in Explainability and Data-centric AIMulti-task LearningLearning with Temporal Point ProcessesNetwork Representation Learning, and Scalable Machine Learning.

I have applied these techniques on problems in Computer VisionInformation ExtractionOpinion Dynamics and Sentiment AnalysisComputational AdvertisingHealth InformaticsNatural Language ProcessingWeb and Online Social Networks.

  • A Greedy Hierarchical Approach to Whole-Network Filter-Pruning in CNNs by Purohit K., Parvathgari A.R., Bhattacharya S. Transactions on Machine Learning Research 2024 - (2024)
  • Non-link preserving network embedding using subspace learning for network reconstruction by Pandey P.K., Bhattacharya S., Ganguly N. ACM International Conference Proceeding Series 10-17 (2019)
  • CheckSelect: Online Checkpoint Selection for Flexible, Accurate, Robust, and Efficient Data Valuation by Das S., Sagarkar M., Bhattacharya S., Bhattacharya S. IEEE Transactions on Artificial Intelligence - (2024)
  • AR-BERT: Aspect-relation enhanced Aspect-level Sentiment Classification with Multi-modal Explanations by Islam S.M., Bhattacharya S. WWW 2022 - Proceedings of the ACM Web Conference 2022 987-998 (2022)
  • Finding High-Value Training Data Subset through Differentiable Convex Programming. by Das S., Singh A. , Chatterjee S. , Bhattacharya S. , Bhattacharya S. ECML-PKDD - (2021)
  • EXPLORA: Efficient Exemplar Subset Selection for Complex Reasoning by Purohit K., Venktesh V., Devalla R., Yerragorla K.M., Bhattacharya S., Anand A. EMNLP 2024 - 2024 Conference on Empirical Methods in Natural Language Processing, Proceedings of the Conference 5367-5388 (2024)
  • Scalable Backdoor Detection in Neural Networks by Harikumar H., Le V., Rana S., Bhattacharya S., Gupta S., Venkatesh S. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 12458 LNAI 289-304 (2021)
  • TMCOSS: Thresholded Multi-Criteria Online Subset Selection for Data-Efficient Autonomous Driving by Das S., Patibandla H., Bhattacharya S., Bera K., Ganguly N., Bhattacharya S. Proceedings of the IEEE International Conference on Computer Vision 6321-6330 (2021)
  • A Comparative Data-Driven Study of Intensity-Based Categorical Emotion Representations for MER by Chaki S., Bhattacharya S., Borgohain J., Patnaik P., Mullick R., Karambelkar G. IEEE Transactions on Affective Computing 16 56-67 (2025)
  • Differentiable Change-point Detection With Temporal Point Processes by Koley P., Alimi H. , Singla S. , Bhattacharya S. , Ganguly N. , De A. AISTATS - (2023)

Principal Investigator

  • AI/ML Techniques for Online Shopping (Sub Project II) Flipkart Internet Private Limited
  • Data-centric Trusted AI Hewlett-Packard (India) Software Operation Private Limited
  • Online Subset Selection Algorithms for Data-centric Responsible AI andEfficient ComputerVision Science and Engineering Research Board (SERB)

Co-Principal Investigator

  • Google Unrestricted Fund for Social Computing GOOGLE INDIA PRIVATE LIMTED
  • Property Preserving Data Gradation for Autonomous Vehicle Data HEWLETT-PACKARD (INDIA) SOFTWARE OPERATION PRIVATE LIMITED
  • Understanding and Predicting Opinion Dynamics In Collective Environment Using Deep Network Representation CISCO University Research Program Fund
  • Unrestricted grant for research in social networks and user-generated content Dr. M Chelliah, Head, Academic Relations, Yahoo India R & D
  • Unrestricted Travel Grant Various Institutes/Organisations
  • Virtual Labs (Phase III) Ministry of Human Resource Development
  • VIRTUAL LABS PROJECT(PHASE-III EXTENDED) MHRD, Department of Higher Education, NMEICT, New Delhi

Ph. D. Students

Debamalya Chakravorty

Area of Research: Machine Learning, Foundation Models

Jyothi Pulikanti

Area of Research: Machine Learning, Information Retrival

Kiran Purohit

Area of Research: Machine Learning, Computer Vision

Sanjoy Mondal

Area of Research: Machine Learning, Trustworthy AI

Suman Kumar Bera

Area of Research: Machine learning

MS Students

Saptarshi Mondal

Area of Research: Machine Learning, Information Retrieval

Shubhadip Nag

Area of Research: Machine Learning, Information Retrieval