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CIKM
2011
Springer
12 years 10 months ago
Semantic data markets: a flexible environment for knowledge management
We present Nyaya, a system for the management of Semantic-Web data which couples a general-purpose and extensible storage mechanism with efficient ontology reasoning and querying ...
Roberto De Virgilio, Giorgio Orsi, Letizia Tanca, ...
OTM
2007
Springer
14 years 4 months ago
Translating XPath Queries into SPARQL Queries
Abstract The W3C has developed XPath [3] as a query language for XML data. XPath is embedded in many other languages like XQuery and XSLT. The name of XPath derives from its basic ...
Matthias Droop, Markus Flarer, Jinghua Groppe, Sve...
VLDB
2007
ACM
169views Database» more  VLDB 2007»
14 years 10 months ago
Staying FIT: Efficient Load Shedding Techniques for Distributed Stream Processing
In distributed stream processing environments, large numbers of continuous queries are distributed onto multiple servers. When one or more of these servers become overloaded due t...
Nesime Tatbul, Stanley B. Zdonik, Ugur Çeti...
TPCTC
2009
Springer
190views Hardware» more  TPCTC 2009»
14 years 4 months ago
A Performance Study of Event Processing Systems
Abstract. Event processing engines are used in diverse mission-critical scenarios such as fraud detection, traffic monitoring, or intensive care units. However, these scenarios hav...
Marcelo R. N. Mendes, Pedro Bizarro, Paulo Marques
CIDR
2009
98views Algorithms» more  CIDR 2009»
13 years 11 months ago
From Declarative Languages to Declarative Processing in Computer Games
Recent work has shown that we can dramatically improve the performance of computer games and simulations through declarative processing: Character AI can be written in an imperati...
Ben Sowell, Alan J. Demers, Johannes Gehrke, Nitin...