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SEMWEB
2009
Springer
15 years 11 months ago
A Decomposition-Based Approach to Optimizing Conjunctive Query Answering in OWL DL
Scalable query answering over Description Logic (DL) based ontologies plays an important role for the success of the Semantic Web. Towards tackling the scalability problem, we prop...
Jianfeng Du, Guilin Qi, Jeff Z. Pan, Yi-Dong Shen
FPGA
2001
ACM
152views FPGA» more  FPGA 2001»
15 years 11 months ago
A pipelined architecture for partitioned DWT based lossy image compression using FPGA's
Discrete wavelet transformations (DWT) followed by embedded zerotree encoding is a very efficient technique for image compression [2, 5, 4]. However, the algorithms proposed in l...
Jörg Ritter, Paul Molitor
UML
2001
Springer
15 years 10 months ago
UML Modelling and Performance Analysis of Mobile Software Architectures
Modern distributed software applications generally operate in complex and heterogeneous computing environments (like the World Wide Web). Different paradigms (client-server, mobili...
Vincenzo Grassi, Raffaela Mirandola
WEBENG
2001
Springer
15 years 10 months ago
Web Engineering Resources
This paper introduces the Web Engineering Resources Portal (shortly WEP), as a basic Reference Model and Guide for the Web Engineers. WEP provides a general classification of Web E...
PODS
2000
ACM
146views Database» more  PODS 2000»
15 years 10 months ago
Analysis and Application of Adaptive Sampling
An estimation algorithm for a query is a probabilistic algorithm that computes an approximation for the size (number of tuples) of the query. One class of estimation algorithms us...
James F. Lynch