IJSRD | High Speed Clustering Scheme for High Dimensional Data Streams


Research Aera & Helpful Artile for : Computer Science & Information Technology

Author(s): Sudeesh S, M. Suresh

Institute: SELVAM COLLEGE OF TECHNOLOGY

Keywords: Clustering, Data Stream, High Dimensionality

Abstract
This paper presents a novel high-speed clustering scheme for high dimensional data streams. Data stream clustering has gained importance in different applications, for example, in network monitoring, intrusion detection, and real-time sensing are few of those. High dimensional stream data is inherently more complex when used for clustering because the evolving nature of the stream data and high dimensionality make it non-trivial. In order to tackle this problem, projected subspace within the high dimensions and limited window sized data per unit of time are used for clustering purpose. We propose a High Speed and Dimensions data stream clustering scheme (HSD Stream) which employs exponential moving averages to reduce the size of the memory and speed up the processing of projected subspace data stream. The proposed algorithm has been tested against HDD Stream for cluster purity, memory usage, and the cluster sensitivity. Experimental results have been obtained for corrected KDD intrusion detection dataset. These results show that HSDStream outperforms the HDDStream in performance metrics, especially the memory usage and the processing speed.

Paper ID: IJSRDV5I10658
Published in IJSRD Volume : 5, Issue : 1, April 2017

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A Novel Technique for Realization of Circular Polarization in Planar Inverted F Antenna | #IJSRD


In this paper various techniques for realization of circular polarization in Planar Inverted F Antenna for Nano satellite applications at 2.4Ghz (s-Band) is presented and several research works done on PIFA are categorized and discussed. PIFA is most commonly used and extensively demanded antenna especially in mobile communication because of its low profile, moderate gain, good radiation pattern, multiband operation.

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Fig:  Layout of PIFA in ADS

This  Article represents past study on planar inverted f antenna. After study of various research papers it can be concluded that with the suitable technique circular polarization can be generated in this antenna and thus can be useful in nanosatellite applications
             PIFA can be thought of as a combination of the inverted-F (IFA) and the short-circuit rectangular micro strip antennas. Quarter-wavelength Patch Antenna, which leads into the Planar Inverted-F Antenna (PIFA). It is small and has a low profile, making it suitable for mounting on portable equipment. It is a variant of monopole where the top section has been folded down so as to be parallel with ground plane. This is done to reduce the height of the antenna, while maintaining resonant training length
These are the applications of Planar Inverted F Antenna:
  1. Mobile Communication
  2. Satellite communication
  3. Direct broadcast services

An article  published in IJSRD by Jadav Ankita Bhavanbhai of Electronics and Communication Engineering from L.J.INSTITUTE OF ENGINEERING & TECHNOLOGY

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