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ICDE
2009
IEEE
120views Database» more  ICDE 2009»
15 years 6 months ago
Recommending Join Queries via Query Log Analysis
— Complex ad hoc join queries over enterprise databases are commonly used by business data analysts to understand and analyze a variety of enterprise-wide processes. However, eff...
Xiaoyan Yang, Cecilia M. Procopiuc, Divesh Srivast...
ENTCS
2006
172views more  ENTCS 2006»
14 years 11 months ago
Locality of Queries and Transformations
Locality is a standard notion of finite model theory. There are two well known flavors of it, based on Hanf's and Gaifman's theorems. Essentially they say that structure...
Leonid Libkin
ATMOS
2008
15 years 1 months ago
Engineering Time-Expanded Graphs for Faster Timetable Information
We present an extension of the well-known time-expanded approach for timetable information. By remodeling unimportant stations, we are able to obtain faster query times with less s...
Daniel Delling, Thomas Pajor, Dorothea Wagner
SEMWEB
2009
Springer
15 years 6 months ago
Dynamic Querying of Mass-Storage RDF Data with Rule-Based Entailment Regimes
RDF Schema (RDFS) as a lightweight ontology language is gaining popularity and, consequently, tools for scalable RDFS inference and querying are needed. SPARQL has become recently ...
Giovambattista Ianni, Thomas Krennwallner, Alessan...
DASFAA
2008
IEEE
109views Database» more  DASFAA 2008»
15 years 6 months ago
Supporting Keyword Queries on Structured Databases with Limited Search Interfaces
Many Web sources provide forms to allow users to query their hidden data. For instance, online stores such as Amazon.com have search interfaces, using which users can query informa...
Nurcan Yuruk, Xiaowei Xu, Chen Li, Jeffrey Xu Yu