@inproceedings{f7de21b440ae40bca05da672d2b66d5d,
title = "A grid-based k-nearest neighbor join for large scale datasets on MapReduce",
abstract = "Because MapReduce supports efficient parallel data processing, MapReduce-based query processing algorithms have been widely studied. Among various query types, k-nearest neighbor join, which aims to produce the k nearest neighbors of each point of a dataset from another dataset, has been considered most important in data analysis. Existing k-NN join query processing algorithms on MapReduce suffer from high index construction and computation costs which make them unsuitable for big data processing. In this paper, we propose a new grid-based k-NN join query processing algorithm on MapReduce. First, we design a dynamic grid index that represents the distribution of join datasets. Based on this index, we prune out unnecessary cells for the join with the distance-based filtering. This can reduce the data transmission and computation overheads. From performance analysis, we show that our algorithm outperforms the existing scheme up to seven times in terms of query processing time while achieving high query result accuracy.",
keywords = "Bitmap encryption, Cloud computing, Density aware, Grid index, Location data protection",
author = "Miyoung Jang and Shin, \{Young Sung\} and Chang, \{Jae Woo\}",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 17th IEEE International Conference on High Performance Computing and Communications, IEEE 7th International Symposium on Cyberspace Safety and Security and IEEE 12th International Conference on Embedded Software and Systems, HPCC-ICESS-CSS 2015 ; Conference date: 24-08-2015 Through 26-08-2015",
year = "2015",
month = nov,
day = "23",
doi = "10.1109/HPCC-CSS-ICESS.2015.189",
language = "English",
series = "Proceedings - 2015 IEEE 17th International Conference on High Performance Computing and Communications, 2015 IEEE 7th International Symposium on Cyberspace Safety and Security and 2015 IEEE 12th International Conference on Embedded Software and Systems, HPCC-CSS-ICESS 2015",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "888--891",
booktitle = "Proceedings - 2015 IEEE 17th International Conference on High Performance Computing and Communications, 2015 IEEE 7th International Symposium on Cyberspace Safety and Security and 2015 IEEE 12th International Conference on Embedded Software and Systems, HPCC-CSS-ICESS 2015",
}