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SIGMOD
2005
ACM
159views Database» more  SIGMOD 2005»
16 years 6 months ago
System RX: One Part Relational, One Part XML
This paper describes the overall architecture and design aspects of a hybrid relational and XML database system called System RX. We believe that such a system is fundamental in t...
Kevin S. Beyer, Roberta Cochrane, Vanja Josifovski...
SIGMOD
2004
ACM
131views Database» more  SIGMOD 2004»
16 years 6 months ago
Order-Preserving Encryption for Numeric Data
Encryption is a well established technology for protecting sensitive data. However, once encrypted, data can no longer be easily queried aside from exact matches. We present an or...
Rakesh Agrawal, Jerry Kiernan, Ramakrishnan Srikan...
SIGMOD
2004
ACM
160views Database» more  SIGMOD 2004»
16 years 6 months ago
Extending Query Rewriting Techniques for Fine-Grained Access Control
Current day database applications, with large numbers of users, require fine-grained access control mechanisms, at the level of individual tuples, not just entire relations/views,...
Shariq Rizvi, Alberto O. Mendelzon, S. Sudarshan, ...
SIGMOD
2002
ACM
219views Database» more  SIGMOD 2002»
16 years 6 months ago
Efficient k-NN search on vertically decomposed data
Applications like multimedia retrieval require efficient support for similarity search on large data collections. Yet, nearest neighbor search is a difficult problem in high dimen...
Arjen P. de Vries, Nikos Mamoulis, Niels Nes, Mart...
PODS
2003
ACM
113views Database» more  PODS 2003»
16 years 6 months ago
Materializing views with minimal size to answer queries
In this paper we study the following problem. Given a database and a set of queries, we want to find, in advance, a set of views that can compute the answers to the queries, such ...
Rada Chirkova, Chen Li