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PODS
2011
ACM
238views Database» more  PODS 2011»
14 years 7 months ago
Beyond simple aggregates: indexing for summary queries
Database queries can be broadly classified into two categories: reporting queries and aggregation queries. The former retrieves a collection of records from the database that mat...
Zhewei Wei, Ke Yi
KBSE
2009
IEEE
15 years 11 months ago
Automatically Recommending Triage Decisions for Pragmatic Reuse Tasks
—Planning a complex software modification task imposes a high cognitive burden on developers, who must juggle navigating the software, understanding what they see with respect t...
Reid Holmes, Tristan Ratchford, Martin P. Robillar...
VTC
2007
IEEE
15 years 10 months ago
A Novel Timing and Frequency Offset Estimation Scheme for OFDM Systems
— A novel structure of training symbol is proposed for orthogonal frequency division multiplexing (OFDM) systems. With the proposed training symbol, which has repeated sample blo...
Shun-Sheng Wang, Chih-Peng Li, Chin-Liang Wang
CCS
2007
ACM
15 years 10 months ago
Specifying and analyzing security automata using CSP-OZ
Security automata are a variant of B¨uchi automata used to specify security policies that can be enforced by monitoring system execution. In this paper, we propose using CSP-OZ, ...
David A. Basin, Ernst-Rüdiger Olderog, Paul E...
GECCO
2007
Springer
148views Optimization» more  GECCO 2007»
15 years 10 months ago
Exploring the behavior of building blocks for multi-objective variation operator design using predator-prey dynamics
In this paper, we utilize a predator-prey model in order to identify characteristics of single-objective variation operators in the multi-objective problem domain. In detail, we a...
Christian Grimme, Joachim Lepping, Alexander Papas...