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SIGMOD
2002
ACM
124views Database» more  SIGMOD 2002»
16 years 7 months ago
Quadtree and R-tree indexes in oracle spatial: a comparison using GIS data
Spatial indexing has been one of the active focus areas in recent database research. Several variants of Quadtree and R-tree indexes have been proposed in database literature. In ...
Kothuri Venkata Ravi Kanth, Siva Ravada, Daniel Ab...
DASFAA
2007
IEEE
138views Database» more  DASFAA 2007»
16 years 1 months ago
An Original Semantics to Keyword Queries for XML Using Structural Patterns
XML is by now the de facto standard for exporting and exchanging data on the web. The need for querying XML data sources whose structure is not fully known to the user and the need...
Dimitri Theodoratos, Xiaoying Wu
ICDT
2009
ACM
175views Database» more  ICDT 2009»
16 years 7 months ago
Structural characterizations of schema-mapping languages
Schema mappings are declarative specifications that describe the relationship between two database schemas. In recent years, there has been an extensive study of schema mappings a...
Balder ten Cate, Phokion G. Kolaitis
VLSID
1999
IEEE
97views VLSI» more  VLSID 1999»
15 years 11 months ago
Improving Area Efficiency of Residue Number System based Implementation of DSP Algorithms
Residue Number System based applications involve modulo-arithmetic which is typically implemented using look-up-tables (LUTs) for a small value of modulus. In this paper, we prese...
M. N. Mahesh, Satrajit Gupta, Mahesh Mehendale
SIGCSE
1996
ACM
136views Education» more  SIGCSE 1996»
15 years 11 months ago
Thinking about binary trees in an object-oriented world
The Binary Search Tree serves as an important example when teaching data structures. We explore new approaches to understanding the implementation of a Binary Search Tree, using c...
A. Michael Berman, Robert C. Duvall