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PODS
2011
ACM
238views Database» more  PODS 2011»
12 years 12 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
14 years 3 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
14 years 3 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
14 years 3 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»
14 years 3 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...