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Symmetric key cryptography is a common cryptographic technique using the same key at both the transmitter and receiver side. The main advantage of symmetric key encryption is its less computational cost compared to its counterpart-public key encryption. In this work a new symmetric key encryption scheme is proposed. Rather than using normal binary secret keys, our technique uses images as secret keys...
In recent times, automatic face recognition algorithms are playing a key role in several security applications. In this paper, we develop a framework for enhancing the security of vehicle parking spaces. The proposed framework can be divided in to three separate steps. In first step, a vehicle in the input image is spotted. In second step, driver face is located. In final step, a robust face recognition...
Cardiotocography (CTG) is a worldwide method used for recording fetal heart rate and uterine contractions during pregnancy and delivery. The consistent visual assessment of the CTG is not only time consuming but also requires expertise and clinical knowledge of the obstetricians. The inconsistency in visual evaluation can be eliminated by developing clinical decision support systems. During last few...
In this paper, genetic programming (GP) based intelligent scheme is proposed for the denoising of digital images from impulse noise. Mixed impulse noise model which comprises a mixture of both salt & pepper, and uniform impulse noise, is considered. The proposed scheme works in two stages. First stage detects impulse noise in the image through a novel single-stage GP detector which is based on...
Nature being so nonlinear provides substantial reasoning to study the nonlinear dynamics inherited by the systems. Almost all of the systems that exist are nonlinear and analysis of such type of systems is necessary to understand a certain phenomenon. This paper presents a qualitative analysis of a coupled van der Pol's oscillator with the study of limit cycles. In order to get an approximate analytical...
Organic polymers like Polyethylene and Teflon are used in the most of coaxial cables for insulation purposes. When dielectric insulators are subjected to ionizing radiation, radiation induced conductivity is observed. Thus, ionizing radiation deteriorates the insulating properties of these insulators resulting in a steady state current during the radiation exposure. Solid state band model of polyethylene...
The introduction of Plug-in Hybrid Electric Vehicles (PHEVs) in the transportation sector has facilitated the public in terms of reducing fossil fuels consumption and pollution problems. However, the growing popularity of PHEVs create new technical problems in the power system in terms of grid stability and upgradation of distribution transformers. To balance the extra load of PHEVs, a smart charging...
Search engines use indexing schemes to index documents for efficient search and retrieval. However these search engines, take XML documents as a unit and ignore the fact that XML documents may contain records and objects that are required to be indexed in parts. Indexing XML documents as a whole, may result in irrelevant and inaccurate results to a query. In this paper, we have defined a technique...
Amount of information available on internet is growing constantly. To explore the vast information search engines are used massively. They usually provide more than the required information. It takes huge amount of our precious time to go through all the information to find the relevant one. To resolve the issue it is best to display information in the form of meaningful clusters. This paper focuses...
Biomedical ontologies are being developed in a great quantity since the last decade. Due to the complex structure of ontologies and difficult terminologies of biomedical domain, the evaluation of these ontologies turns out to be a challenging task. It is utmost need of current ontology researchers and developers to evaluate the quality of these biomedical ontologies so that the applicability and reuse...
In modern computing paradigms, energy consumption is of foremost importance because it constitutes a major percentage of the operational expenses. Virtual Machines (VMs) are consolidated on a fewer number of servers to significantly reduce the overall power consumption. The idle servers are then turned off by using Dynamic threshold Voltage Scaling (DTVS). The VM monitor checks for under-utilized,...
Recently the interest in wireless sensor and actor networks has increased tremendously. Although there has been significant improvement in WSANs, but still many challenges are needed to overcome the issues of critical applications. In most of the published work the focus is on the performance analysis of non-functional properties but correctness of the approach is still ignored which is very important...
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