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» On the Synthetic Generation of Semantic Web Schemas
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SEBD
2007
148views Database» more  SEBD 2007»
13 years 9 months ago
Containment of Conjunctive Object Meta-Queries
We consider the problem of query containment over an object data model derived from F-logic. F-logic has generated considerable interest commercially, in the academia, and within ...
Andrea Calì, Michael Kifer
SIGMOD
2007
ACM
125views Database» more  SIGMOD 2007»
14 years 7 months ago
Identifying meaningful return information for XML keyword search
Keyword search enables web users to easily access XML data without the need to learn a structured query language and to study possibly complex data schemas. Existing work has addr...
Ziyang Liu, Yi Chen
WWW
2008
ACM
14 years 8 months ago
StYLiD: Social Information Sharing with Free Creation of Structured Linked Data
Information sharing can be effective with structured data. The Semantic Web is mainly aimed at structuring information by creating widely accepted ontologies. However, users have ...
Aman Shakya, Hideaki Takeda, Vilas Wuwongse
SIGMOD
2010
ACM
239views Database» more  SIGMOD 2010»
14 years 8 days ago
Computing label-constraint reachability in graph databases
Our world today is generating huge amounts of graph data such as social networks, biological networks, and the semantic web. Many of these real-world graphs are edge-labeled graph...
Ruoming Jin, Hui Hong, Haixun Wang, Ning Ruan, Yan...
ICC
2009
IEEE
150views Communications» more  ICC 2009»
14 years 2 months ago
Modeling Human Behavior for Defense Against Flash-Crowd Attacks
—Flash-crowd attacks are the most vicious form of distributed denial of service (DDoS). They flood the victim with service requests generated from numerous bots. Attack requests...
Georgios Oikonomou, Jelena Mirkovic