TY - GEN
T1 - On processing view field nearest neighbor queries on the R*-tree
AU - Yi, Sungmin
AU - Jung, Harim
AU - Park, Jun Pyo
AU - Chung, Yon Dohn
PY - 2011
Y1 - 2011
N2 - This paper addresses a new type of spatial queries, called the view field nearest neighbor (VFNN) query. Given a user's location (i.e., query point) and a user's view field (i.e., query view field), VFNN query finds the nearest data object that falls within the user's view field. To support efficient processing of VFNN queries, we utilize the R*-tree, one of the representative multi-dimensional index structures, to index a dataset. We propose the VFNN search algorithm on the R*-tree, which employs (i) a mindist to measure the minimum possible distance from a query point to each data object and (ii) a minangle (maxangle), the minimum (maximum) angle (viewed from the positive x-axis) between the query point and the minimum bounding rectangle (MBR) of each R*-tree node. Through a series of simulations, we study the performance of the proposed search algorithm.
AB - This paper addresses a new type of spatial queries, called the view field nearest neighbor (VFNN) query. Given a user's location (i.e., query point) and a user's view field (i.e., query view field), VFNN query finds the nearest data object that falls within the user's view field. To support efficient processing of VFNN queries, we utilize the R*-tree, one of the representative multi-dimensional index structures, to index a dataset. We propose the VFNN search algorithm on the R*-tree, which employs (i) a mindist to measure the minimum possible distance from a query point to each data object and (ii) a minangle (maxangle), the minimum (maximum) angle (viewed from the positive x-axis) between the query point and the minimum bounding rectangle (MBR) of each R*-tree node. Through a series of simulations, we study the performance of the proposed search algorithm.
KW - augmented reality
KW - location based service
KW - nearest neighbor queries
KW - spatial data
UR - http://www.scopus.com/inward/record.url?scp=80955128572&partnerID=8YFLogxK
U2 - 10.1109/ICECENG.2011.6058108
DO - 10.1109/ICECENG.2011.6058108
M3 - Conference contribution
AN - SCOPUS:80955128572
SN - 9781424481637
T3 - 2011 International Conference on Electrical and Control Engineering, ICECE 2011 - Proceedings
SP - 4838
EP - 4841
BT - 2011 International Conference on Electrical and Control Engineering, ICECE 2011 - Proceedings
T2 - 2nd Annual Conference on Electrical and Control Engineering, ICECE 2011
Y2 - 16 September 2011 through 18 September 2011
ER -