3652 search results - page 308 / 731 » A study of query length |
197
Voted
VLDB
2007
ACM
16 years 3 months ago
2007
ACM
Data Warehouses and Business Intelligence (BI) applications are the top two priorities for CIO/CTOs (Celent report on December 14, 2005). A data warehouse IT infrastructure needs ...
227
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SIGMOD
2009
ACM
16 years 3 months ago
2009
ACM
With the proliferation of the RDF data format, engines for RDF query processing are faced with very large graphs that contain hundreds of millions of RDF triples. This paper addre...
235
Voted
SIGMOD
2006
ACM
16 years 3 months ago
2006
ACM
This paper introduces the Tuple Graph (TuG) synopses, a new class of data summaries that enable accurate selectivity estimates for complex relational queries. The proposed summari...
141
Voted
IPPS
2007
IEEE
15 years 10 months ago
2007
IEEE
We study efficient query processing in distributed web search engines with global index organization. The main performance bottleneck in this case is due to the large amount of i...
113
Voted
ICDT
2007
ACM
15 years 9 months ago
2007
ACM
Abstract. We define and study formal privacy guarantees for information integration systems, where sources are related to a public schema by mappings given by source-to-target dep...