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Bhatnagar G.,IIT Jodhpur | Jonathan Wu Q.M.,University of Windsor
Neurocomputing | Year: 2015

This paper presents a novel chaotic encryption technique for the secure transmission of biometrics data. The proposed technique relies on the fractional random wavelet transform (FrRnWT), the modular transform and the generalized logistic map (GLM). The core idea is to decompose a biometric image into a fractional random wavelet domain using the chaotically generated transform orders. The FrRnWT coefficients are then diffused by a chaotically generated matrix key. In the penultimate step, the modular transform is applied on the diffused image to get the encrypted biometrics image. A reliable decryption process is proposed to reconstruct the original biometrics from the encrypted image. The experimental results and analysis demonstrate the efficiency and robustness of the proposed technique. © 2014 Elsevier B.V. Source

Narayanan V.H.,IIT Jodhpur
AI and Society | Year: 2014

A major stumbling block in understanding the full significance of embodiment is the reflexive self-conception characterised by free-floating nature. The paper, in the initial sections, looks into the sensory motor approach to phenomenal consciousness and the approach to the study of vision where the world is treated as an external memory. Subsequently, the paper argues that the difficulty in exploring the sensory motor approach to phenomenal consciousness stems from the free-floating self-conception humans is endowed with. The assumption that experiences are internal can make us closed to the role external factors play in constituting experience. Accordingly, a revision in the self-conception carries the possibility of conceptualising experience in a different manner. © 2014 Springer-Verlag London Source

Venk Atappal Raju I.,IIT Jodhpur
Lecture Notes in Electrical Engineering | Year: 2015

We consider a Markov-modulated defaultable Brownian market and price the defaultable contingent claims with the intensity-based methodology using the fair price concept under the benchmark approach. We also derive the locally risk-minimizing hedging strategy for defaultable contingent claims under the benchmark approach. We assume that the default intensity and the stock price parameters are modulated by a Markov process. The recovery processes are assumed to have random payments at default time as well as at the maturity of the claims. © Springer India 2015. Source

Hari Narayanan V.,IIT Jodhpur
AI and Society | Year: 2015

Embodied approach to cognition has taken roots in cognitive studies with developments in diverse fields such as robotics, artificial life and cognitive linguistics. Taking cue from the metaphor of a Watt governor, this approach stresses on the coupling between the organism and the environment and the continuous nature of the cognitive processes. This results in questioning the viability of computational–representational understanding of mind as a comprehensive theory of cognition. The paper, after giving an overview of embodied approach based on some examples from conceptual metaphor theory, looks into a special case of Orwell’s problem in cognitive science. The problem is that there is so much evidence for embodiment to be true, yet there is little understanding of the same. I shall try to solve this problem by pointing out that it is our inveterate habits of perceiving ourselves that makes the embodied approach appear implausible. Studies on free will as well as the importance of the unconscious in overall cognitive processing raise challenging questions on our self-conception. A revision in the self-conception in the light of these findings will pave the way for a better appreciation of the embodied approach to cognition. © 2013, Springer-Verlag London. Source

Alok A.K.,IIT Jodhpur | Banerjee S.,IIT Jodhpur
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2013

We study the impact of decoherence on B meson systems with specific emphasis on Bs. For consistency we also study the Bd mesons based on the most recent data. Even though the study of decoherence made here depends upon the basis chosen and the final decay products, our analysis suggests that the coherence property of B meson systems is robust and could be a good candidate for making a study of foundational aspects of quantum mechanics. © 2013 American Physical Society. Source

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