Nitin Kumar Sharma

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Attribute Based Access Control (ABAC) models are designed with the intention to overcome the shortcomings of classical access control models (DAC, MAC and RBAC) and unifying their advantages. In ABAC, the access control is provided based on generic attributes of entities. Many organizational security policies condition access decisions on attributes. OWL(More)
This paper presents a comparable study of different adaptive filter algorithm LMS, NLMS, RLS and QR-RLS applied in minimization of MSE. In this paper we considered two kinds of scenarios for analyzing their performance. The RLS algorithm has faster convergence speed/rate than LMS algorithms with better robustness to changeable environment and better(More)
According to recent media reports, there has been a surge in the number of devices that are being connected to the Internet. The Internet of Things (IoT), also referred to as Cyber-Physical Systems, is a collection of physical entities with computational and communication capabilities. The storage and computing power of these devices is often limited and(More)
Image segmentation form an important preliminary step in many high level image processing and computer vision applications. Its importance necessitates the quantitative evaluation of image segmentation results. A few methods have been developed, based on the general principals. In this paper, we propose a novel segmentation evaluation method based on region(More)
UNLABELLED Ectomycorrhizal (ECM) fungal species, a "Symbiotic" relationship between tress and fungi in forest has a great ecological and economic importance. Here is an attempt to describe database named "EctomycorrhizalDB", addressing ECM diversity of Central Himalaya (Kumaun region), with special emphasis on their characterization, physical properties and(More)
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