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» A Query System in a Biological Database
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DBISP2P
2003
Springer
105views Database» more  DBISP2P 2003»
15 years 9 months ago
Distributed Queries and Query Optimization in Schema-Based P2P-Systems
Databases have employed a schema-based approach to store and retrieve structured data for decades. For peer-to-peer (P2P) networks, similar approaches are just beginning to emerge,...
Ingo Brunkhorst, Hadhami Dhraief, Alfons Kemper, W...
EDBTW
2006
Springer
15 years 8 months ago
Semantically Correct Query Answers in the Presence of Null Values
For several reasons a database may not satisfy a given set of integrity constraints (ICs), but most likely most of the information in it is still consistent with those ICs; and cou...
Loreto Bravo, Leopoldo E. Bertossi
ICDT
2010
ACM
194views Database» more  ICDT 2010»
15 years 6 months ago
Bag Equivalence of XPath Queries
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
Sara Cohen, Yaacov Y. Weiss
ADBIS
2009
Springer
210views Database» more  ADBIS 2009»
15 years 9 months ago
Performance Driven Database Design for Scalable Web Applications
Scaling up web applications requires distribution of load across multiple application servers and across multiple database servers. Distributing load across multiple application se...
Jozsef Patvarczki, Murali Mani, Neil T. Heffernan
EDBT
2009
ACM
208views Database» more  EDBT 2009»
15 years 11 months ago
Flexible and efficient querying and ranking on hyperlinked data sources
There has been an explosion of hyperlinked data in many domains, e.g., the biological Web. Expressive query languages and effective ranking techniques are required to convert this...
Ramakrishna Varadarajan, Vagelis Hristidis, Louiqa...