The range nearest-neighbor (NN) query is an important query type in location-based
services, as it can be applied to the case that an NN query has a spatial region, instead of a …

Abstract The goal of Nearest Neighbour (NN) search is to find the objects in a dataset A that
are closest to a query point q. Existing algorithms presume that the dataset is indexed by an …

Differential evolution (DE) is a popular computational method used to solve optimization
problems with several variants available in the literature. Here, the use of a similarity-based …

空间数据库的近邻查询近几年受到人们越来越多的关注. 近邻查询根据程度不同可分为点与点的
近邻查询, 点与线段, 线段与线段的近邻查询. 目前, 前两者研究的较多, 后者没有查到相关文献 …

Clonal selection algorithms are computational methods inspired by the behavior of the
immune system which can be applied to solve optimization problems. However, like other …

Query processing over uncertain data is very important in many applications due to the
existence of uncertainty in real-world data. In this paper, we propose a novel and important …

New operators to execute similarity-based queries over multimedia data stored in Database
Management Systems are increasingly demanded. However, searching in very large …

Purpose The purpose of this paper is to propose and analyze the use of local surrogate
models to improve differential evolution's (DE) overall performance in computationally …

An aggregate nearest neighbor (ANN) query returns a point of interest (POI) that minimizes
an aggregate function for multiple query points. In this paper, we propose an efficient …

(Continued) motion direction of the objects and queries. The system of the present invention
includes the moving objects and que ries, each having an associated motion-adaptive …