Mandar Rahurkar

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Search, exploration and social experience on the Web has recently undergone tremendous changes with search engines, web portals and social networks o↵ering a di↵erent perspective on information discovery and consumption. This new perspective is aimed at capturing user intents, and providing richer and highly connected experiences. The new battleground(More)
Studies have shown that the performance of speech recognition algorithms severely degrade due to the presence of task and emotional induced stress in adverse conditions. This paper addresses the problem of detecting the presence of stress in speech by analyzing nonlinear feature characteristics in specific frequency bands. The framework of the previously(More)
The speech signal can be thought of as multi-spatial signal where each signal subspace corresponds to different attributes that affect the speech. Language, accent, speaker, emotions are few potential sub-spaces. Each space can further be projected into n-dimensions, as there are different languages, accents and emotions, which combine together to make(More)
In this work we propose an approach to combine audio and video modalities for person tracking using graphical models. We demonstrate a principled and intuitive framework for combining these modalities to obtain robustness against occlusion and change in appearance. We further exploit the temporal correlations that exist for a moving object between adjacent(More)
The problem of detecting psychological stress from speech is challenging due to differences in how speakers convey stress. Changes in speech production due to speaker state are not linearly dependent on changes in stress. Research is further complicated by the existence of different stress types and the lack of metrics capable of discriminating stress(More)
We present a novel and intuitive framework for building modular vision systems for complex tasks such as surveillance applications. Inspired by graphical models, especially factor graphs, the framework allows capturing the dependencies between different variables in form of a graph. This enforces principled coordination and exchange of information between(More)