522 search results - page 16 / 105 » Answering Aggregation Queries in a Secure System Model |
CIKM
2010
Springer
13 years 5 months ago
2010
Springer
We introduce EntityEngine, a system for answering entityrelationship queries over text. Such queries combine SQLlike structures with IR-style keyword constraints and therefore, ca...
VLDB
2011
ACM
13 years 2 months ago
2011
ACM
Schema mappings are high-level specifications that describe the relationship between two database schemas. They are an important tool in several areas of database research, notab...
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
This paper describes query processing in the DBO database system. Like other database systems designed for ad-hoc, analytic processing, DBO is able to compute the exact answer to ...
SIGMOD
2004
ACM
14 years 8 months ago
2004
ACM
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
HICSS
2006
IEEE
14 years 1 months ago
2006
IEEE
Technological advances in the collection, storage and analysis of data have increased the ease with which businesses can make profitable use of information about individuals. Som...