Gurgaon, India
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Ghosh H.,Tcs Innovation Labs Delhi | Khare A.,Tcs Innovation Labs Delhi | Gorai A.,Tcs Innovation Labs Delhi | Kopparapu S.K.,Tcs Innovation Labs Mumbai | Pandharipande M.,Tcs Innovation Labs Mumbai
2010 2nd European Workshop on Visual Information Processing, EUVIP2010 | Year: 2010

Indexing of news video streams with semantic keywords is of interest to agencies that regularly monitor many news channels. In this paper, we describe a new method for indexing news video in different languages, for which there are inadequate language tools. Our approach involves combining multimodal inputs, namely audio and visual, and spotting of a handful of keywords with higher reliability, as compared to creating complete transcripts. We conduct a set of experiments to establish performance improvement despite lesser reliability of the language tools. © 2010 IEEE.


Mishra N.,TCS Innovation Labs Delhi | Kopparapu S.K.,TCS Innovation Labs Mumbai
Advances in Intelligent Systems and Computing | Year: 2014

Insignia identification is an important task especially as a self help application on mobile phones which can be used in museums. We propose a knowledge driven rule-based approach and a learning based approach using artificial neural network (ANN) for insignia recognition. Both the approaches are based on a common set of insignia image segmentation followed by extraction of simple, yet effective features. The features used are based on one of frugal processing and computing to suit the mobile computing power. In both the approaches we identify each extracted segment in the insignia; the correct recognition of the segment followed by post processing results in the identification of the insignia. Experimental results show that both approaches work equally well in terms of recognition accuracy of over 90% in terms of identification of the segments and 100% in terms of the actual insignia identification. © Springer International Publishing Switzerland 2014.


Ghosh H.,TCS Innovation Labs Delhi | Kopparapu S.K.,TCS Innovation Labs Mumbai Yantra Park | Chattopadhyay T.,TCS Innovation Labs Kolkata Plot A2 | Khare A.,TCS Innovation Labs Delhi | And 3 more authors.
International Journal of Digital Multimedia Broadcasting | Year: 2010

The problems associated with automatic analysis of news telecasts are more severe in a country like India, where there are many national and regional language channels, besides English. In this paper, we present a framework for multimodal analysis of multilingual news telecasts, which can be augmented with tools and techniques for specific news analytics tasks. Further, we focus on a set of techniques for automatic indexing of the news stories based on keywords spotted in speech as well as on the visuals of contemporary and domain interest. English keywords are derived from RSS feed and converted to Indian language equivalents for detection in speech and on ticker texts. Restricting the keyword list to a manageable number results in drastic improvement in indexing performance. We present illustrative examples and detailed experimental results to substantiate our claim. Copyright © 2010 Hiranmay Ghosh et al.


Mallik A.,Indian Institute of Technology Delhi | Ghosh H.,TCS Innovation Labs Delhi | Chaudhury S.,Indian Institute of Technology Delhi | Harit G.,IIT Jodhpur
ACM Transactions on Multimedia Computing, Communications and Applications | Year: 2013

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 article 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 disperate knowledge-intensive applications involving reasoning with media properties of concepts. © 2013 ACM.


Agarwal P.,TCS Innovation Labs Delhi
Proceedings of the 4th India Software Engineering Conference 2011, ISEC'11 | Year: 2011

Hosted software-as-a-service products provide an opportunity to provide consumers with continuous deployment of new features, as opposed to scheduled version upgrades as is the norm for products installed on-premise. In order to exploit this opportunity, a SaaS provider needs to adopt an agile process that is capable of releasing new features rapidly. The SCRUM [5,6] process is ideally suited for this purpose: However, when SCRUM has been used for agile development of an installed product, parallel, overlapping 'sprints' are executed by separate teams, each dealing with short, medium, and longer-term enhancements to the product[3]; with the result that version upgrades are therefore easier to manage. In contrast, in the case of a SAAS product, version upgrades are no longer a constraint, so we can do better. In this paper we describe 'Continuous SCRUM', a variant of Type-C SCRUM, augmented with engineering best practices, in a manner ideally suited for managing SAAS products. In our approach, bug-fixes, minor enhancements, as well as major features are released continuously, on a weekly basis by a single team, in contrast to "Meta-SCRUM" [3]. We also present field data from our experience with using Continuous SCRUM for a hosted platform-as-a-service product for more than two years. Our experience reinforces other recent evidence [11] that rapid, smaller releases are often preferable to infrequent, larger ones. Continuous SCRUM provides a mechanism to achieve and sustain a rapid release cycle, for SAAS products as well as, we believe, for custom applications developed in-house.


Bansal R.,Tcs Innovation Labs Delhi | Kumaran R.,Tcs Innovation Labs Delhi | Mahajan D.,Tcs Innovation Labs Delhi | Khurdiya A.,Tcs Innovation Labs Delhi | And 2 more authors.
MM 2012 - Proceedings of the 20th ACM International Conference on Multimedia | Year: 2012

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. © 2012 Authors.


Wattamwar S.,TCS Innovation Labs Delhi | Oberoi T.,TCS Innovation Labs Delhi | Ghosh H.,TCS Innovation Labs Delhi
MM'11 - Proceedings of the 2011 ACM Multimedia Conference and Co-Located Workshops - ACM International Workshop on Multimedia Technologies for Distance Learning, MTDL'11 | Year: 2011

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. © 2011 ACM.

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