Subal Kar obtained his B.Sc Physics (Honours) degree from St. Edmunds’ College, Shillong, Meghalaya and B.Tech., M.Tech., and Ph. D (Tech.) degree from the Institute of Radio Physics and Electronics (IRPE), University of Calcutta. Dr. Kar served as Professor and Head of IRPE, CU and taught Microwave Engineering and related subjects at IRPE from 1983- 2016 both at B.Tech. and M.Tech. level. His field of specialization is microwave engineering, metamaterials and high energy physics. Dr. Kar has three patents to his credit and published a large number of research papers in peer-reviewed international journals. Dr. Kar was visiting scientist to Lawrence Berkeley National Laboratory, USA, as a Fulbright Scholar during 1999-2000, when he worked for the development of RF structures for Muon Collider. He was also visiting scientist to various universities and institutes in US, Europe and Asia including Oxford University, UK, Cockcroft Institute, UK, EPFL, Switzerland, Kyoto University, Japan. Dr. Kar has authored a text book entitled “Microwave Engineering—Fundamentals, Design and Applications” (2 nd Edition, 2022) first published by Universities Press in 2016. He has also to his credit another book entitled “Physics and Astrophysics—Glimpses of the Progress” published by CRC Press of Taylor and Francis Group in 2022. Dr. Kar has contributed a number of chapters in edited books published by Elsevier, Springer Nature, and CRC Press. He is the recipient of young scientist award of URSI and IEEE MTT and Fulbright award of the US government. Dr. Kar is Fellow of IETE, Senior Member of IEEE and Life Member of VEDA Society.

Saumik Bhattacharya is an assistant professor in the Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur. He received his Ph.D. in Electrical Engineering from IIT Kanpur, Kanpur, India, in 2017. He has published more than thirty research papers in reputed international journals and conferences. His research interests include image processing, computer vision, and statistical learning. He is an Associate of the West Bengal Academy of Science and Technology and an Associate of the International Centre for Theoretical Physics.

Speaker Biodata

Speaker Biodata

Speaker Biodata

Speaker Biodata

Sh KS Varaprasad obtained his Bachelor’s Degree in Electronics and Communication Engineering from JNTU College of engineering, Anantapur and Master’s Degree in Microwave and Radar Engineering from Indian Institute of Technology, Kharagpur.
Sh KS Varaprasad joined Integrated Test Range (ITR) Chandipur, a missile complex laboratory in July 1989 and started his career in the field of Telemetry Data Acquisition and analysis. He worked in the company of key national experts in this domain and became a specialist in this critical filed. He has been instrumental in expanding the telemetry facilities of the range and contributed towards successful realization of national missile development programs including Integrated Guided Missile Programme (IGMDP).
Sh KS Varaprasad was posted to DRDL, a major missile development laboratory under missile complex during May 2001. In DRDL he continued his career as Head of Range System’s Division and went on to become Director of Instrumentation in the year 2005. His salient contributions at DRDL include Down Range Instrumentation for long range missiles, Air-borne telemetry data acquisition system for missiles with low cruise phase trajectory, Pontoon instrumentation system for under water missile programme, Scramjet instrumentation for Hypersonic Technology demonstrator etc.
Sh KS Varaprasad was appointed as Project Director, HELINA, a Helicopter Launched Anti Tank Guided Missile. HELINA is designated to play the role of ATGM in the integrated weapon network of Advanced Light Helicopter (ALH_WSI). Under his leadership the basic system design, platform integration and separation/control/guided flight trials have been successfully accomplished along with Aviation Wing of Indian Army and HAL. As Project Director he made noteworthy contributions in the fields of Missile Avionics, Air-bone Fire Control System including launchers, IIR Seekers, FOG sensors and Two-way jam-resistant missile data links.
Sh KS Varaprasad was appointed as Director of one of important DRDO laboratories in New Delhi from 01 Oct 2016 and fulfilled the responsibilities successfully for two years. Sh KS Varaprasad was appointed as Director General (Human Resources) since 01 Oct 2018. Fields of interest for Research of Sh KS Varaprasad are Telemetry and Instrumentation for missiles, Image Processing & guidance algorithms of ATGMs, Missile and Satellite Communication/Data links with Anti Jam and Security features.

Shri Viswam Gampala, currently working as Outstanding Scientist & Sc 'H' at MTRDC / LRDE is heading MTRDC in DRDO. He joined DRDO in 1989 as Scientist 'B' after completing his M.Sc (Computer Science) from Andhra University, Vishakhapatnam and completed M.Tech (Computer engineering) from IIT, Chennai in the year 1997. Shri Viswam worked in various Radar projects with vast experience in Design and Development of Radar Systems, more specifically in Surveillance & Fire Control Radars of Akash Weapon System, QRSAM, Akash NG, ADFCR for Army/Airforce needs and Programme AD. He had designed and developed several time critical systems, hardware & software for Radar Control, Weapon Control & Command Guidance, Display Software, High Speed recording and Analysis, Interface systems meeting hard real-time system requirements. He was Deputy Project Director for Development of Radars for AD programme of India and was instrumental in successfully establishing a geographically distributed Integrated Weapon system network for AD Programme integrating the long range active array radars and standardization of the interfaces. His expertise includes System engineering of large scale System of Systems, Concept definition, Interface Definition, Real-time hardware & software design development using Object Oriented Paradigm, Parallel processing systems & software specific w.r.t Radar Signal Processing, System integration and Testing, Deployment, Operationalization and Productionization of Radar systems. He had participated in several Integrated Missions from ITR, Balasore and ensured that the long range radars of AD Programme and radars of other projects are fully integrated to the Mission Control network of ITR. He had lead the teams at LRDE for successful realization of first of it's kind four wall on the move radar (configured on single 8x8 HMV / Trailer) in C and X-band which completed first level trials both for Indian Army (QRSAM) and Indian Airforce (Akash NG). A new generation programmable signal processor was completely designed, developed and integrated into these radars using GPGPU hardware for the first time in Indian radars reducing the cost and complexity significantly. He is instrumental for ongoing development of fire control radars at LRDE for Naval applications. He had established required infrastructure, software development environment and integration setup for realization of new generation radars at LRDE along with extensive network of industry partners. His fields of interests include Systems Engineering, Parallel Processing using GPGPU architectures, highly time critical software & hardware systems and miniaturization reducing complexity of Radar systems. He had received young scientist Award 2000 and Scientist of the year Award 2013 from DRDO. He is heading MTRDC since 1 June 2021.

Prof Bhaskar Gupta was born in Kolkata, India, in 1960. He received the B.E.Tel.E., M.E.Tel.E., and Ph.D. degrees from Jadavpur University, Kolkata, India in 1982, 1984 and 1996 respectively. He is currently a Professor in the Department of Electronics and Telecommunications Department and Dean, Faculty of Engineering & Technology, Jadavpur University, where he has been teaching since 1985. He has supervised 35 doctoral dissertations and is presently guiding 5 more. He has published about 350 research articles in refereed journals and conferences and coauthored three books on advanced research topics. His present area of interest is planar antennas, wearable antennas, dielectric resonator antennas, biological effects of RF radiation on plants, RF MEMS and application of soft computing techniques in microwave engineering and antennas. Dr. Gupta is a Fellow of IETE, a Fellow of the Institution of Engineers (India) and a Life Member of SEMCE(I). He was the Chairman of AP-MTT Joint Chapter, IEEE Calcutta Section; Chairman, Students’ Activities and Chair, Electronics & Telecommunication Engineering Division, WB State Centre of Institution of Engineers (India).. Presently, he is the Vice-Chair, IEEE Calcutta Section. He serves as Referee and member of Editorial Board in different internationally acclaimed journals and as Guest Editor to the Asian Journal of Physics. Further, he successfully completed 18 research projects sponsored by various agencies and is currently working on two more, including national and international collaborative projects. He was the Chairman, West Bengal Joint Entrance Examination Board from 2011 to 2015. He served DFCCIL and Railtel Corporation, both Government of India PSUs, as Independent Director for more than three years in each case. He has been named in the 2009 edition of Marquis’ Who’s Who in the World.

Jayanta Mukhopadhyay (Mukherjee) is presently a professor in the Dept. of Computer Science and Engineering, Indian Institute of Technology, Kharagpur, India. His research interests are in image processing, computer vision, robotics, pattern recognition, computer graphics, multimedia systems and bio-medical informatics. Presently he also holds the position of Dean, Outreach and Alumni Affairs of the Institute. He served as the head of the Computer and Informatics Center at IIT, Kharagpur from September 2004 to July 2007. He also served as the head of the Department of Computer Science and Engineering and the School of Information and Technology from April, 2010 to March, 2013. He was a Humboldt Research Fellow at the Technical University of Munich in Germany for one year in 2002. He has also held short term visiting positions at the Univ. of California, Santa Barbara, and the Univ. of Southern California, Los Angeles. Dr. Mukhopadhyay is internationally recognized for his research work in the area of Image Processing as well as in Medical Informatics. He is known for his works on development of algorithms for various image and video processing tasks in the compressed domain. He has also contributed significantly in the area of digital geometry. In particular, he worked extensively on approximating Euclidean metrics by various digital distances, and developed various image processing algorithms driven by their geometry. There are also other areas in image and video processing, where he did extensive work and contributed to the development of new algorithms and theory, such as in color image processing, fractal image compression, video analytics and modeling, document image processing, and analysis of cultural heritage images. Dr. Mukhopadhyay is also recognized for his works in areas of health care and medical image processing. He worked extensively in telemedicine, neonatal health care, and cancer radiomics. He is the lead investigator in developing an open source telemedicine system ‘iMediXCare’, whose different customized versions are running in a few hospitals and community healthcare programs. His research team also developed a medical image data bank coupled with a deidentification system, name CHAVI, for oncoradiology. The system is recently inaugurated at Tata Medical Center, Kolkata, a premier Institution for cancer research and treatment. He has also worked on medical instrumentation and assistive technology, holding an international patent on electronic smart cane for aiding navigation of visually challenged persons. He has published about 350 research papers in journals and conference proceedings in these areas. He has authored two books “Image and video processing in the compressed domain” (CRC Press, 2011), and “Approximation of Euclidean Metric by Digital Distances (Springer, 2020)”, and coauthored a book on “Digital geometry in image processing” (CRC Press, 2013). Dr. Mukhopadhyay received the Young Scientist Award from the Indian National Science Academy in 1992. He is a Senior Member of the IEEE, and a fellow of the Indian National Academy of Engineering (INAE).

Abstract: As opposed to supervised learning, unsupervised learning attempts to discover patterns, regularities, outliers, etc., in an unlabeled dataset. Various techniques of unsupervised learning, primarily addressing the problem of clustering of data, are widely used for various scientific investigations, and are found to provide valuable insights toward new discovery and understanding in respective areas. As more and more data are increasingly available for analysis, it has become challenging to apply some of the well known popular clustering algorithms such as K-means, DBSCAN, etc., on a large dataset, as they are both computation and storage intensive. In this talk, we will consider some of the approaches on adapting these techniques for handling large datasets.

Topic

Soumya K. Ghosh is a Professor in the Department of Computer Science and Engineering, Indian Institute of Technology (IIT) Kharagpur. Before joining IIT Kharagpur, he worked for the Indian Space Research Organization (ISRO) in the area of remote sensing and GIS. He received his Ph.D. and MTech. degrees from the Department of Computer Science and Engineering, IIT Kharagpur, India. His research interests include spatial data science, spatial web services, and cloud-fog-edge computing. He has more than 350 research papers in peer-reviewed journals/ transactions and conference proceedings. He has been awarded the National Geospatial Chair Professorship by the Department of Science and Technology (DST), Government of India. He is a Senior Member of IEEE, Member of ACM and Fellow of Royal Geographical Society (UK).

Prof. Smita Sadhu is currently professor of Electrical Engineering at the Department of Electrical Engineering, Jadavpur University, having been a member of the faculty for the last twenty four years. She was awarded the B.E.E. degree by Jadavpur University in 1991 and the M.E.E. and Ph.D. (Control Systems) degrees in 1994 and 1999 respectively, by IIEST (then known as B.E. College). She then completed Post doctoral studies from the University of Cambridge, UK, having been awarded the prestigious Commonwealth Academic Staff Fellowship. A recipient of numerous academic honours, she was awarded the Sir Thomas Ward Memorial Medal of the Institution of Engineers (India) in 1997, the Tata Rao Prize of the Institution of Engineers (India) in 2003, the Commonwealth Academic Staff Fellowship by the Commonwealth Scholarship Commission, UK in 2004, Corps of Electrical and Mechanical Engineers Prize in 2006 and the Certificate of Merit in 2007, also by the Institution of Engineers (India). Prof. Sadhu has published extensively in noted International and National journals and conference proceedings. She has also guided numerous Doctoral and Postgraduate students in research as doctoral advisor and post graduate thesis supervisor respectively. She has spearheaded research initiatives as Coordinator or co-investigator in the domains of control and guidance, modelling and simulation, robust control, tracking and estimation. Prof. Sadhu is the Coordinator of the Centre for Knowledge Based Systems of Jadavpur University since 2005.