Sciweavers

3999 search results - page 123 / 800
» Design of Optical Access Systems using Computer Modeling
Sort
View
GLOBECOM
2007
IEEE
15 years 11 months ago
Opportunistic Access with Random Subchannel Backoff (OARSB) for OFDMA Uplink
Abstract— A distributed medium access control (MAC) algorithm for uplink OFDMA networks under the IEEE 802.16 framework is proposed and analyzed in this work. We present a simple...
Yu-Jung Chang, Feng-Tsun Chien, C. C. Jay Kuo
187
Voted
SIGMOD
2012
ACM
253views Database» more  SIGMOD 2012»
13 years 7 months ago
Skew-aware automatic database partitioning in shared-nothing, parallel OLTP systems
The advent of affordable, shared-nothing computing systems portends a new class of parallel database management systems (DBMS) for on-line transaction processing (OLTP) applicatio...
Andrew Pavlo, Carlo Curino, Stanley B. Zdonik
SIGMOD
2010
ACM
250views Database» more  SIGMOD 2010»
15 years 5 months ago
Expressive and flexible access to web-extracted data: a keyword-based structured query language
Automated extraction of structured data from Web sources often leads to large heterogeneous knowledge bases (KB), with data and schema items numbering in the hundreds of thousands...
Jeffrey Pound, Ihab F. Ilyas, Grant E. Weddell
TKDE
2008
177views more  TKDE 2008»
15 years 4 months ago
Analyzing and Managing Role-Based Access Control Policies
Today more and more security-relevant data is stored on computer systems; security-critical business processes are mapped to their digital counterparts. This situation applies to ...
Karsten Sohr, Michael Drouineaud, Gail-Joon Ahn, M...
124
Voted
CHI
2010
ACM
15 years 6 months ago
Designing a CD augmentation for mobile phones
Interacting with physical CDs can be a very tangible and explorative experience. However, physical objects can't provide access to the digital services we are used to when us...
Niels Henze, Susanne Boll