Results 271 to 280 of about 3,471,337 (333)

Query Processing in Spatial-Query-by-Sketch

Journal of Visual Languages & Computing, 1997
Abstract Spatial-Query-by-Sketch is the design of a query language for geographic information systems. It allows a user to formulate a spatial query by drawing the desired configuration with a pen on a touch-sensitive computer screen and translates this sketch into a symbolic representation that can be processed against a geographic database.
openaire   +1 more source

Broadcast-Based Spatial Queries

Journal of Computer Science and Technology, 2005
Indexing techniques have been developed for wireless data broadcast environments, in order to conserve the scarce power resources of the mobile clients. However, the use of interleaved index segments in a broadcast cycle increases the average access latency for the clients.
Kwang-Jin Park, Moon-Bae Song, Chong-Sun Hwang   +2 more
openaire   +1 more source

Spatial-symbolic Query Engine in Anatomy

Methods of Information in Medicine, 2012
SummaryObjectives: Currently, the primary means for answering anatomical questions such as ‘what vital organs would potentially be impacted by a bullet wound to the abdomen?’ is to look them up in textbooks or to browse online sources. In this work we describe a semantic web service and spatial query processor that permits a user to graphically pose ...
A, Puget, J L V, Mejino, L T, Detwiler, J D, Franklin, J F, Brinkley   +4 more
openaire   +2 more sources

Spatial-Query-by-Sketch

Proceedings 1996 IEEE Symposium on Visual Languages, 2002
Today's methods for interacting with geographic information systems (GISs) and geographic databases are primarily aspatial, as they require users to deal with geographic data primarily through alphanumeric command languages. Spatial querying by typing a command in some spatial query language or by selecting the same syntax from pull-down menus is a ...
openaire   +1 more source

Efficient and Privacy-Preserving Polygons Spatial Query Framework for Location-Based Services

IEEE Internet of Things Journal, 2017
Hui Zhu, Fen Liu, Hui Li
semanticscholar   +1 more source

A Survey of Traditional and MapReduceBased Spatial Query Processing Approaches

SGMD, 2017
Hari Singh, S. Bawa
semanticscholar   +1 more source

Query Processing on Heterogeneous CPU/GPU Systems

ACM Computing Surveys, 2023
Viktor Rosenfeld
exaly  

Spatial Queries

2003
Maytham H. Safar, Cyrus Shahabi
openaire   +1 more source

On supporting compilation in spatial query engines: (vision paper)

SIGSPATIAL/GIS, 2016
Ruby Y. Tahboub, Tiark Rompf
semanticscholar   +1 more source

Hilbert curve-based cryptographic transformation scheme for spatial query processing on outsourced private data

Data & Knowledge Engineering, 2016
Hyeong-Il Kim, Seung-Tae Hong, Jae-Woo Chang   +2 more
semanticscholar   +1 more source