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Authors: Rohit Jain ; C. P. Gupta and Seema Sharma

Affiliation: Rajasthan Technical University, India

Keyword(s): Kernel, Kernel Density Estimation, Mean Integrated Squared Error, Outlier Detection.

Related Ontology Subjects/Areas/Topics: Data Manipulation ; Data Quality and Integrity ; Sensor Networks

Abstract: In sensor network, data generated by various sensors deployed at different locations need to be analyzed in order to identify interesting events correspond to outliers. The presence of outliers may distort contained information. To ensure that the information is correctly extracted, it is necessary to identify the outliers and isolate them during knowledge extraction phase. In this paper, we propose a novel unsupervised algorithm for detecting outliers based on density by coupling two principles: first, kernel density estimation and second assigning an outlier score to each object. A new kernel function building a smoother version of density estimate is proposed. An outlier score is assigned to each object by comparing local density estimate of each object to its neighbors. The two steps provide a framework for outlier detection that can be easily applied to discover new or unusual types of outliers. Experiments performed on synthetic and real datasets suggest that the proposed appro ach can detect outliers precisely and achieve high recall rates which in turn demonstrate the potency of the proposed approach. (More)

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Paper citation in several formats:
Jain, R.; Gupta, C. and Sharma, S. (2015). A New Kernel for Outlier Detection in WSNs Minimizing MISE. In Proceedings of the 4th International Conference on Sensor Networks - SENSORNETS; ISBN 978-989-758-086-4; ISSN 2184-4380, SciTePress, pages 169-175. DOI: 10.5220/0005318401690175

@conference{sensornets15,
author={Rohit Jain. and C. P. Gupta. and Seema Sharma.},
title={A New Kernel for Outlier Detection in WSNs Minimizing MISE},
booktitle={Proceedings of the 4th International Conference on Sensor Networks - SENSORNETS},
year={2015},
pages={169-175},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005318401690175},
isbn={978-989-758-086-4},
issn={2184-4380},
}

TY - CONF

JO - Proceedings of the 4th International Conference on Sensor Networks - SENSORNETS
TI - A New Kernel for Outlier Detection in WSNs Minimizing MISE
SN - 978-989-758-086-4
IS - 2184-4380
AU - Jain, R.
AU - Gupta, C.
AU - Sharma, S.
PY - 2015
SP - 169
EP - 175
DO - 10.5220/0005318401690175
PB - SciTePress