Research

Dr. Ghosh,Hiranmay

Principal Scientist

 

Education:
Hiranmay Ghosh received his B.Sc. degree with honours in Physics from Calcutta University in 1974, B.Tech. degree in Radiophysics and Electronics in 1977 and PhD from Department of Electrical Engineering, IIT Delhi in 2002.

Research Interests:

  • Multimedia Information Systems
  • Educational technologies
  • Semantic Web
  • Agent Based Systems

Complete list of Publications (183 KB) 

Select PublicationsThe Book : 'Multimedia Ontology: Representation and Applications'
Authors:
Dr. Santanu Chaudhury, Dr. Anupama Mallik, Dr Hiranmay Ghosh

Abstract:
The result of more than 15 years of collective research, Multimedia Ontology: Representation and Applications provides a theoretical foundation for understanding the nature of media data and the principles involved in its interpretation. The book presents a unified approach to recent advances in multimedia knowledge representation schemes and explains how a multimedia ontology can fill the semantic gap between concepts and the media world. It relays real-life examples of implementations in different domains to illustrate how this gap can be filled. The book contains information that helps with building multimedia applications that involve semantic analysis of contents. It guides you in designing real-life systems that aid in logical and conceptual organization of large amounts of multimedia data distributed over the web. As a practical demonstration, it showcases multimedia applications in several domains, such as information aggregation, cultural heritage preservation and multimedia artifacts recommendation.

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MOWL: An Ontology Representation Language for Web based Multimedia Applications
Authors:
A. Mallik, H. Ghosh, G. Harit and S. Chaudhury
ACM Transactions of Multimedia Computing, Communications and Applications (TOMCCAP). 10(1). December 2013.

Abstract:

Several multimedia applications need to reason with concepts and their media properties in specific domain contexts. Media properties of concepts exhibit some unique characteristics that cannot be dealt with conceptual modeling schemes followed in the existing ontology representation and reasoning schemes. We have proposed a new perceptual modeling technique for reasoning with media properties observed in multimedia instances and the latent concepts. Our knowledge representation scheme uses a causal model of the world where concepts manifest in media properties with uncertainties. We introduce a probabilistic reasoning scheme for belief propagation across domain concepts through observation of media properties. In order to support the perceptual modeling and reasoning paradigm, we propose a new ontology language, Multimedia Web Ontology Language (MOWL). Our primary contribution in this paper is to establish the need for the new ontology language and to introduce the semantics of its novel language constructs. We establish the generality of our approach with two disparate knowledge-intensive applications involving reasoning with media properties of concepts.

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TWIPIX: A Web Magazine curated from social media
Authors:
R. Bansal, R. Kumaran, D. Mahajan, A. Khurdiya, L. Dey and H. Ghosh
ACM Multimedia Conference, Nara, Japan 2012

Abstract:

This paper describes a method to identify events being vigorously discussed on social media and to present them in the form of a web-based daily magazine. Tweet texts and hyperlinked information sources, such as images and news articles, are analyzed to discover the events. The events are selected for presentation using an “interestingness factor”, which combines several facets of the discussions surrounding the events. The events are correlated based on their content similarity.

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A novel framework for distance education using asynchronous interaction
Authors:
S. Wattamwar, T. Oberoi and H. Ghosh
Workshop on Multimedia Technologies for Distance Education. ACM Multimedia Conference. USA 2011.

Abstract:

Unavailability of skilled teachers is a major hindrance to the spread of education, especially in the remote areas of rural India and many developing nations. We propose a novel framework for distance education, which enables asynchronous interaction between city-based expert teachers and rural classrooms, so that the teacher’s outreach extends to a much larger student community. The education delivery system is consciously based on low-cost equipment, familiar to the rural community. The solution complements Direct-To-Home (DTH) television network based delivery of video lectures with slow-speed Internet to support asynchronous interactivity. A specially designed low-cost hardware seamlessly integrates DTH with Internet and uses TV as the display device in a classroom setup. The technology solution is complemented with a revenue-sharing model to attract skilled teachers to create quality contents and builds an ecosystem of partners of educators and service providers.

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