Finding k nearest neighbor objects in spatial databases is a fundamental problem in many
geospatial systems and the direction is one of the key features of a spatial object. Moreover …

The range of applications in ambient information systems progressively evolves from large
to small scale environments. This is particularly the case for applications that assist humans …

With the rocket development of the Internet, WWW (World Wide Web), mobile computing and
GPS (Global Positioning System) services, location-based services like Web GIS …

Рассмотрены общие принципы работы пространственно-временных структур данных
по индексированию движения мобильных объектов. Описаны отличительные …

Obstructed nearest neighbor query is a kind of nearest neighbor query for the existence of
obstacles, which has important application value in the field of geographic information …

Location based services suggest resources (Fuel station, Restaurant, ATM stations etc.) to
the users based on the query location during mobility. In case of nearest neighbor query, the …

Decision support queries can recommend a handful of appropriate objects to a user to help
in decision-makings. The user specifies multiple interests as the query and the system …

Recent advances in positioning technologies and wireless communications lead to a
proliferation of location-based services. The moving-object database is a specialized …

• Managing streaming locations–accept incoming flux of object statuses with space-
timestamps➢ deduce whether objects are actually moving or remain stationary–collect …

Location-based services (LBS) have been widely accepted by mobile users. Many LBS
users have direction-aware search requirement that answers must be in the search …