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Data drives all aspects of our society, from everyday life, to business, to medicine, and science. It is well known that query personalization can be an effective technique in dealing with the data scalability challenge, primarily from the human point of view. In order to customize their query results, users need to express their preferences in a simple and user-friendly manner. There are two types...
Cloud Infrastructure as a Service (IaaS), where traditional IT infrastructure resources such as compute, storage and networking are owned by a cloud service provider (CSP) and offered as on-demand virtual resources to customers (tenants), is the fastest maturing service model in cloud computing. The transformation of physical resources into virtual offers great flexibility to CSP customers including...
Clustering is an efficient topology control approach for maximizing the lifetime and scalability of Wireless Sensor Networks (WSNs). Many cluster-based routing techniques have been proposed in the literature. However, in most of the proposed protocols, the communication between a sensor node and its designated cluster head (CH) is assumed to be single-hop. Multi-hop communication can be used when...
CiteSeerX is a crawl-based digital library search engine providing free access to more than 4 million academic papers. Since metadata in the digital library is obtained through automatic extraction, it is inevitable that errors will occur. CiteSeerX offers a feature allowing registered users to correct paper metadata including titles, authors, abstracts, publication years, venues, etc. We claim that...
Here we have shown a new variation of the microfabricated pillar array detector (MPAD) that can decouple the stiffness gradient from the focal adhesion area of a cell. This goal is achieved through the use of “stepped” micro pillar array device (SMPAD) whose top contact area with a cell is kept constant while the diameter of pillar bodies vary for variable mechanical stiffness. We have observed manipulating...
A low frequency oscillator required for driving the vibrating head of Electrolarynx is implemented using a low power voltage reference circuit. The employed circuit shows a stable oscillation when simulated with Cadence Virtuoso. The reference voltage circuit can be operated at 1.3 Volts and shows good temperature stability between 15°C to 30°C which will be acceptable in the situation where Electrolarynx...
Identifying the parameters of a model such that it best fits an observed set of data points is fundamental to the majority of problems in computer vision. This task is particularly demanding when portions of the data has been corrupted by gross outliers, measurements that are not explained by the assumed distributions. In this paper we present a novel method that uses the Least Quantile of Squares...
This paper proposes a distributed peer-to-peer data lookup technique on DHTs in order to serve range queries over multiple attributes. The scheme, MARQUES, uses space filling curves to map multi-attribute data points to a one-dimensional key space and thus effectively converts multi-attribute range queries into a consecutive series of one-dimensional keys. These keys are then used to place or lookup...
Source code plagiarism has been a concern for many teachers in computer science field, given to the ease of availability of content in this era of internet. We developed a tool for detecting plagiarism in source codes of students learning programming languages, to cater to the needs of teachers and help them monitor students source codes. Currently our tool supports six programming languages namely,...
With the increase in signal's bandwidth, the conventional analog to digital converters (ADCs), operating on the basis of Shannon/Nyquist theorem, are forced to work at very high rates leading to low dynamic range and high power consumptions. This paper here tells about one Analog to Information converter developed based on compressive sensing techniques. The high sampling rates, which is the main...
A compact CPW fed antenna is designed for the dual band operation. Here electromagnetic band gap structures of rectangle-shaped lattices are placed for the harmonic suppression. We observed that EBG structures are not only exhibiting the band stop characteristics, but also help to magnify the proposed antenna bandwidth. The rectangular lattice like EBG's have a frequency band gap and high surface...
In wireless communication, the broadcast server serves numerous clients. The exchange of information from server and access by the clients takes place in a cyclic path using the directional antennas. But directional antennas have several drawbacks. So the multiple directional antennas were used to replace the fixed directional antenna systems. When using the multiple antennas to get the desired improved...
The present paper deals with implementation of printed microstrip apollonian gasket fractal antenna circuit for wireless applications. Design of fractal antenna and its first three iterations were presented. Simulation of fractal antenna is made using HFSS 13.0 software and the Antenna has been designed on FR4 substrate εr = 4.4 and thickness 1.5 mm. implementation is made on FR4 material. The antenna...
Human-Computer Interaction is an emerging field of Computer Science where, Computer Vision, especially facial expression recognition occupies an essential role. There are so many approaches to resolve this problem, among them HMM is a considerable one. This paper aims to achieve optimization in both, the usage of number of states and the time complexity of HMM runtime. It also focusses to enable parallel...
Orthogonal frequency division multiplexing (OFDM), also known as multi-carrier modulation scheme, is an attractive technology for upcoming communication system, to enhance data rate, higher spectral efficiency and better quality of service (QOS). In OFDM, first higher data stream has been divided into lower data streams and after modulation these data streams are together transmitted by orthogonal...
Face is the primary index for imparting the identity. Automated face detection is one of the interesting field of research. Face detection of digital image has acquired much importance and interest in last two decades, which has applications in different fields. Computerizing the process needs many image processing methods. In this paper, a new face detection approach using color base segmentation...
In this paper, we investigate the multi-hop connectivity in cognitive radio ad-hoc networks (CRAHNs). Specifically, we propose an algorithm to check the multi-hop connectivity of two arbitrary secondary nodes with random nodes' locations and primary nodes' active states as inputs. Then, we use statistical simulation approach with our proposed algorithm to obtain the overall multi-hop connectivity...
Classification of normal liver and different types of tumors in the liver by using Computed Tomography (CT) imaging technique. The processing of image enhancement is done by using Contrast limited adaptive histogram equalization (CLAHE) algorithm. That enhanced images have a different view look for normal liver and both tumors. A number of parameters evaluations for the comparison between both types...
In current era, most of the information is captured using multimedia techniques. Most used methods for information capturing is through images and videos. In processing a video, large information needs to be processed and a number of frames could contain similar information which could cause unnecessary delay in gathering the required information. Video summarization can speed up video processing...
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