Top-n query processing in spatial databases considering bi-chromatic reverse k-nearest neighbors

2014 ◽  
Vol 42 ◽  
pp. 123-138 ◽  
Author(s):  
Cha-Lun Li ◽  
En Tzu Wang ◽  
Guo-Jhu Huang ◽  
Arbee L.P. Chen
Keyword(s):  
Query Processing ◽  
Spatial Databases ◽  
Nearest Neighbors ◽  
K Nearest Neighbors

Event-based k-nearest neighbors query processing over distributed sensory data using fuzzy sets

2017 ◽  
Vol 23 (2) ◽  
pp. 483-495 ◽  
Author(s):  
Yinglong Li ◽  
Hong Chen ◽  
Mingqi Lv ◽  
Yanjun Li
Keyword(s):  
Query Processing ◽  
Fuzzy Sets ◽  
Nearest Neighbors ◽  
K Nearest Neighbors ◽  
Sensory Data ◽  
Event Based

Reverse k nearest neighbors query processing

2015 ◽  
Vol 8 (5) ◽  
pp. 605-616 ◽  
Author(s):  
Shiyu Yang ◽  
Muhammad Aamir Cheema ◽  
Xuemin Lin ◽  
Wei Wang
Keyword(s):  
Query Processing ◽  
Nearest Neighbors ◽  
K Nearest Neighbors

scholarly journals Tropical Balls and Its Applications to K Nearest Neighbor over the Space of Phylogenetic Trees

Mathematics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 779
Author(s):  
Ruriko Yoshida
Keyword(s):  
Supervised Learning ◽  
Phylogenetic Trees ◽  
Nearest Neighbor ◽  
Nearest Neighbors ◽  
High Dimensional ◽  
Learning Method ◽  
Dimensional Vector ◽  
K Nearest Neighbor ◽  
K Nearest Neighbors

A tropical ball is a ball defined by the tropical metric over the tropical projective torus. In this paper we show several properties of tropical balls over the tropical projective torus and also over the space of phylogenetic trees with a given set of leaf labels. Then we discuss its application to the K nearest neighbors (KNN) algorithm, a supervised learning method used to classify a high-dimensional vector into given categories by looking at a ball centered at the vector, which contains K vectors in the space.

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