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PODS
2010
ACM
205views Database» more  PODS 2010»
15 years 9 months ago
Positive higher-order queries
We investigate a higher-order query language that embeds operators of the positive relational algebra within the simply-typed λ-calculus. Our language allows one to succinctly de...
Michael Benedikt, Gabriele Puppis, Huy Vu
CIVR
2004
Springer
100views Image Analysis» more  CIVR 2004»
15 years 9 months ago
STRICT: An Image Retrieval Platform for Queries Based on Regional Content
This paper presents a CBIR system that is based on a segmented representation of image content. It compares regional features using fuzzy similarity, which have been shown to be ps...
Jean-François Omhover, Marcin Detyniecki
GIS
2005
ACM
16 years 5 months ago
Shapes based trajectory queries for moving objects
An interesting issue in moving objects databases is to find similar trajectories of moving objects. Previous work on this topic focuses on movement patterns (trajectories with tim...
Bin Lin, Jianwen Su
140
Voted
GIS
1998
ACM
15 years 3 months ago
Natural-Language Spatial Relations Between Linear and Areal Objects: The Topology and Metric of English-Language Terms
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
A. Rashid B. M. Shariff, Max J. Egenhofer, David M...
154
Voted
TKDE
2010
190views more  TKDE 2010»
15 years 2 months ago
Effectively Indexing the Uncertain Space
—With the rapid development of various optical, infrared, and radar sensors and GPS techniques, there are a huge amount of multidimensional uncertain data collected and accumulat...
Ying Zhang, Xuemin Lin, Wenjie Zhang, Jianmin Wang...