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VLDB
2005
ACM
125views Database» more  VLDB 2005»
15 years 3 months ago
Rewriting XPath Queries Using Materialized Views
As a simple XML query language but with enough expressive power, XPath has become very popular. To expedite evaluation of XPath queries, we consider the problem of rewriting XPath...
Wanhong Xu, Z. Meral Özsoyoglu
CVDB
2004
ACM
15 years 3 months ago
A Case Study on Array Query Optimisation
The development of applications involving multi-dimensional data sets on top of a RDBMS raises several difficulties that are not directly related to the scientific problem being ...
Roberto Cornacchia, Alex van Ballegooij, Arjen P. ...
ESA
2004
Springer
139views Algorithms» more  ESA 2004»
15 years 3 months ago
Comparing Real Algebraic Numbers of Small Degree
We study polynomials of degree up to 4 over the rationals or a computable real subfield. Our motivation comes from the need to evaluate predicates in nonlinear computational geome...
Ioannis Z. Emiris, Elias P. Tsigaridas
MWCN
2004
Springer
15 years 3 months ago
Route Stability Techniques for Enhanced Video Delivery on Manets
Abstract One of the main problems associated with MANETs is that mobility and the associated route discovery and maintenance procedures of reactive routing protocols cause interrup...
Carlos Miguel Tavares Calafate, Manuel P. Malumbre...
SETN
2004
Springer
15 years 3 months ago
Automated Medical Image Registration Using the Simulated Annealing Algorithm
This paper presents a robust, automated registration algorithm, which may be applied to several types of medical images, including CTs, MRIs, Xrays, Ultrasounds and dermatological ...
Ilias Maglogiannis, Elias P. Zafiropoulos