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IGIS
1994
145views GIS» more  IGIS 1994»
13 years 11 months ago
Approximations for a Multi-Step Processing of Spatial Joins
The basic concept for processing spatial joins consists of two steps: First, the spatial join is performed on the minimum bounding rectangles of the objects by using a spatial acce...
Thomas Brinkhoff, Hans-Peter Kriegel
WG
1993
Springer
13 years 11 months ago
Graphs, Hypergraphs and Hashing
Minimal perfect hash functions are used for memory efficient storage and fast retrieval of items from static sets. We present an infinite family of efficient and practical algori...
George Havas, Bohdan S. Majewski, Nicholas C. Worm...
ACL
2006
13 years 9 months ago
Segment-Based Hidden Markov Models for Information Extraction
Hidden Markov models (HMMs) are powerful statistical models that have found successful applications in Information Extraction (IE). In current approaches to applying HMMs to IE, a...
Zhenmei Gu, Nick Cercone
ISASSCI
2001
13 years 9 months ago
Towards Optimal Database Maintenance in Wireless Communication Systems
To ensure the consistency of database subsystems involved in wireless communication systems, appropriate scheduled maintenance policies are necessary. However, the short-persisten...
Amine Chohra, Felicita Di Giandomenico, Stefano Po...
WSCG
2004
282views more  WSCG 2004»
13 years 8 months ago
High-Quality Silhouette Illustration for Texture-Based Volume Rendering
We present an accurate, interactive silhouette extraction mechanism for texture-based volume rendering. Compared to previous approaches, our system guarantees silhouettes of a use...
Zoltán Nagy, Reinhard Klein