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» A System for Semantic Query Optimization
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ICIP
2003
IEEE
16 years 4 months ago
Performance evaluation of Euclidean/correlation-based relevance feedback algorithms in content-based image retrieval systems
In this paper, we evaluate and investigate two main types of relevance feedback algorithms; the Euclidean and the correlation?based approaches. In the first case, we examine heuri...
Anastasios D. Doulamis, Nikolaos D. Doulamis
INFOCOM
2009
IEEE
15 years 9 months ago
Smart Trend-Traversal: A Low Delay and Energy Tag Arbitration Protocol for Large RFID Systems
—We propose a Smart Trend-Traversal (STT) protocol for RFID tag arbitration, which effectively reduces the collision overhead occurred in the arbitration process. STT, a Query Tr...
Lei Pan, Hongyi Wu
ICDE
2009
IEEE
143views Database» more  ICDE 2009»
15 years 10 months ago
Supporting Generic Cost Models for Wide-Area Stream Processing
— Existing stream processing systems are optimized for a specific metric, which may limit their applicability to diverse applications and environments. This paper presents XFlow...
Olga Papaemmanouil, Ugur Çetintemel, John J...
SIGMOD
2004
ACM
173views Database» more  SIGMOD 2004»
16 years 3 months ago
Relaxed Currency and Consistency: How to Say "Good Enough" in SQL
Despite the widespread and growing use of asynchronous copies to improve scalability, performance and availability, this practice still lacks a firm semantic foundation. Applicati...
Hongfei Guo, Jonathan Goldstein, Per-Åke Lar...
EDBT
1990
ACM
108views Database» more  EDBT 1990»
15 years 7 months ago
Deductive Databases - Theory Meets Practice
Deductive Databases are coming of age with the emergence of efficient and easy to use systems that support queries, reasoning, and application development on databases through dec...
Carlo Zaniolo