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TWC
2010
13 years 2 months ago
Dual-hop adaptive packet transmission systems with regenerative relaying
We propose and analyze two different approaches for performing adaptive modulation and coding (AMC) in dualhop transmission systems, where a source node S communicates with a certa...
Andreas Müller 0001, Hong-Chuan Yang
ICDM
2007
IEEE
99views Data Mining» more  ICDM 2007»
14 years 1 months ago
Optimizing Frequency Queries for Data Mining Applications
Data mining algorithms use various Trie and bitmap-based representations to optimize the support (i.e., frequency) counting performance. In this paper, we compare the memory requi...
Hassan H. Malik, John R. Kender
CIKM
2005
Springer
14 years 28 days ago
A function-based access control model for XML databases
XML documents are frequently used in applications such as business transactions and medical records involving sensitive information. Typically, parts of documents should be visibl...
Naizhen Qi, Michiharu Kudo, Jussi Myllymaki, Hamid...
SSD
1999
Springer
106views Database» more  SSD 1999»
13 years 11 months ago
XZ-Ordering: A Space-Filling Curve for Objects with Spatial Extension
There is an increasing need to integrate spatial index structures into commercial database management systems. In geographic information systems (GIS), huge amounts of information ...
Christian Böhm, Gerald Klump, Hans-Peter Krie...
ACMSE
2006
ACM
13 years 11 months ago
Achieving efficient polynomial multiplication in fermat fields using the fast Fourier transform
We introduce an efficient way of performing polynomial multiplication in a class of finite fields GF(pm ) in the frequency domain. The Fast Fourier Transform (FFT) based frequency...
Selçuk Baktir, Berk Sunar