IJIRST (International Journal for Innovative Research in Science & Technology)ISSN (online) : 2349-6010

 International Journal for Innovative Research in Science & Technology

Outlier Detection based on Distance Concentration: Reverse Nearest Neighbors Approach


Print Email Cite
International Journal for Innovative Research in Science & Technology
Volume 4 Issue - 1
Year of Publication : 2017
Authors : Pranita S Jawale ; Prof. Y. B. Gurav

BibTeX:

@article{IJIRSTV4I1079,
     title={Outlier Detection based on Distance Concentration: Reverse Nearest Neighbors Approach},
     author={Pranita S Jawale and Prof. Y. B. Gurav},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={4},
     number={1},
     pages={208--213},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV4I1079.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}



Abstract:

Outlier identification previously, high-dimensional information displays Different tests coming about because of the “curse of dimensionality”. An prevailing perspective may be that separation concentration, i.e., the propensity from claiming distances over high-dimensional information on turned into indiscernible, Hinders those identification about outliers by making distance-based strategies name at focuses as very nearly just as beneficial outliers. In this paper, we gatherings give proof supporting the assumption that such a see will be a really simple, toward demonstrating that distance-based strategies could. Handle All the more differentiating outlier scores previously, high-dimensional settings. Furthermore, we demonstrate that helter skelter dimensionality could have. An alternate impact, toward re-examining those ideas about opposite closest neighbours in the unsupervised outlier-detection connection. Namely, it might have been as of late watched that those dissemination about points’ reverse-neighbour tallies turns into skewed on secondary dimensions, bringing about. The wonder known as hubness. We furnish knowledge under how a few focuses (antihubs) show up extremely rarely to k-NN records about. Different points, What's more clarify those association between antihubs, outliers, and existing unsupervised outlier-detection systems .Toward. Assessing that excellent k-NN method that angle-based method outlined to high-dimensional data, those density-based nearby. Outlier component What's more impacted outlierness methods, Also antihubs-based strategies on Different manufactured Also real-world information sets,. We offer novel knowledge under the convenience about opposite neighbour tallies previously, unsupervised outlier identification.


Keywords:

Outlier Detection, Reverse nearest Neighbors, High-Dimensional Data, Distance Concentration


Download Article