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Pattern Structure is a generalization of Formal Concept Analysis, comprising of objects and their description forming pattern concepts. Stability is an important measure to rank such concepts. However, in relation to similarity, stability is measured by a crisp computation. In this paper, a new Game Theory based technique is proposed to compute relatively stable concepts with high similarity. It is...
The goal of this research is to design an e-learning content for student guidance based on 4MAT and ILS theory. This paper consists of seven parts as follows. Part one covers the learning activities. Part two is analysis of the learning activity. Part three is discussion of ILS and 4MAT. Part four is implementation of e-learning subjects. Part five is the search for experts to evaluate the learning...
An unprecedented growth in the number of internet users has resulted in an increase in power consumption of the network components and auxiliary services. It is widely believed that optical switching technologies have shown great promise in terms of bandwidth offerings and consume far less energy per bit compared to its electronic counterpart. In this paper, we characterize energy consumption of multi-mode...
In this paper, a frequency reconfigurable microstrip slot antenna for S and C band of microwave application is presented. The frequency reconfiguration is achieved due to the change of current distribution on the ground plane of microstrip slot antenna. Thus, RF PIN Diode is used as switching device to change slot length for altering current distribution on the ground plane. Two rectangular slots...
Cognitive radio (CR) sense the spectrum to discover the available white spaces in it for making better utilization of spectrum and alleviates the spectrum shortage problem. While using the available spectrum, it avoids the harmful interference with licensed users or primary users (PUs). Individual spectrum sensing by CR may not be accurate due to fading and shadowing effects. Cooperative spectrum...
This paper presents a new approach for digital Speech Steganography and watermarking in the speech signal. In the proposed approach, Quantization index modulation is applied on one of the speech signal feature called as line spectral frequency to indicate the pattern of watermark in each frame of the speech signal. Steganographic data or watermarked information is conveyed through the silence part...
This paper's objective is to present the performance comparison between Wi-Fi IEEE 802.11ac and Wi-Fi IEEE 802.11n by measuring the throughput and steaming rate of big data streaming. The performance test is divided into four scenarios, 1) data streaming to one device, 2) data streaming with different distances, 3) data streaming to multiple devices, and 4) live broadcast a big data streaming. The...
In this paper, we present the system of automatic MCQs (Multiple Choice Questions) generation for any given input text along with a set of distractors. The system is trained on a Wikipedia-based dataset consisting of URLs of Wikipedia articles. The important words (keywords) which consist of both bigrams and unigrams are extracted and stored in a dictionary along with many other components of the...
Everyone likes to get the best price, but best price cannot be provided to everyone. This paper proposes an algorithm to provide the best price to the most prospective buyer. E-Negotiation will be based on buyer's activity pattern and surfing behavior. Unlike existing e-negotiation models proposed for B2C, B2B and C2C Ecommerce applications, where the intervention of buyer is present, this paper proposes...
Scoliosis is a 3D deformation of the human spine. It is evaluated using 3D stereo-radiographic reconstruction from the biplanar x-rays. The combined stereo-corresponding point and geometric (CSCPG) reconstruction algorithm is used for this purpose. The CSCPG reconstruction requires six stereo-corresponding landmarks per vertebra to be identified on the biplanar x-rays. Currently, these landmarks are...
Growth of the Internet and web applications has led to vast amount of information over web. Information filtering systems such as Recommenders have become potential tools to deal with such plethora of information, help users select and provide relevant information. Collaborative Filtering is the popular approach to recommendation systems. Collaborative Filtering works on the fact that users with similar...
A compact wideband quarter-wave transformer using microstrip lines is presented. The design relies on replacing a uniform microstrip line with a multi-stage equivalent circuit. The equivalent circuit is a cascade of either T or π networks. Design equations for both types of equivalent circuits have been derived. A quarter-wave transformer operating at 1 GHz is implemented. Simulation results indicate...
In this paper we use a Deep Neural Network (DNN) trained on data collected from the visual media-sharing social platform Instagram account of a popular Indian lifestyle magazine to predict the popularity of future posts. This predicted popularity of the post can be used to decide advertising rates and measure performance metrics important for publishing strategy decisions. The DNN primarily uses growth...
We considered a multi-user MIMO broadcast (BC) system with multiple antennas at both transmitter and receiver sides. A scheduling scheme using semi-orthogonal user selection (SUS) with zero-forcing beamforming (ZFBF) is implemented. The total feedback load required in ZFBF systems is reduced by implementing a two stage feedback scheme by restricting the number of users to participate in each stage...
Communication is an essential part of human life which paralytic patients with locked-in syndrome are deprived of. In locked-in syndrome, the patient cannot move any of his voluntary muscles except the eyes. Taking this into consideration, the proposed system is designed to detect the face and pupil of the patient through a standard webcam using Haar cascade classifiers and Circular Hough Transform...
In today's high paced world where time management stands next to God, it becomes very essential to manage all our roles as well as goals, in order to complete the given task on time. The inability of an individual to do so might lead to serious consequences. At times one might feel extreme pressure and cannot stop worrying about tomorrow's job and pending deadlines. Along with this one has to also...
Fundamental and higher order modes of C-shape patch are discussed and their comparison against the resonant modes of equivalent rectangular patch is presented. Resonant length formulation for C-shape patch at its higher order mode is proposed. The frequency calculated using the same closely agrees with the simulated frequency. A new configuration of C-shape microstrip antenna loaded with step width...
The spectrum sensing is a vital stage in cognitive radio networks. The performance of energy-based spectrum sensing scheme degrades under noise uncertainty, which can be improved by covariance-based sensing methods. In this paper, a double threshold-based spectrum sensing scheme using sample covariance matrix of received signal is presented, that improves the performance of conventional covariance-based...
This paper proposes an image steganography for hiding secret images. The objective of the proposed work is to increase the embedding capacity while ensuring the security of the image. This has been addressed using two levels of processing. First is the application of Genetic Algorithm (GA) as ‘before embedding hiding technique’ which tries to identify suitable places in cover image where embedding...
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