Roop Aparajita Subhra Purushottam

Roop Aparajita Subhra Purushottam is an Associate Professor in the Department of Computer Science and Engineering at the Indian Institute of Technology Kanpur. His research focuses on machine learning foundations and applications, particularly in extreme classification, optimization techniques, robust learning, and educational technology. He has developed scalable algorithms for web-scale applications and innovative teaching tools for programming education.

His research interests span:

• Design and analysis of machine learning algorithms
• Statistical learning theory and online optimization
• Non-convex optimization for large-scale problems
• Robust learning against adversarial corruptions
• Applications in information retrieval, education, and environmental monitoring

Recent publications demonstrate a strong focus on extreme classification techniques, efficient deep learning architectures, and educational technologies. His work consistently appears in top-tier conferences including KDD, ICML, NeurIPS, and CVPR, with innovations in scaling machine learning systems to handle millions of labels and users.

Significant Awards:

• Gopal Das Bhandari Distinguished Teacher Award (2024)
• PK Kelkar Faculty Fellowship (2024-2027)
• Microsoft Bing Ads Greatness Award (2021)
• Computer Society of India Faculty Award (2018)
• Multiple best paper awards and nominations at major conferences

He leads several research grants and consults for industry partners including Microsoft Research and Tower Research. His team develops open-source tools like Prutor for programming education and DEFRAG for efficient feature agglomeration in extreme classification. He has advised numerous PhD and Master's students who have received prestigious awards for their research contributions.