2859 search results - page 4 / 572 » Querying Complex Structured Databases |
ITNG
2006
IEEE
13 years 11 months ago
2006
IEEE
In this paper, still images are modeled by hierarchical tree structures and object relational graphs. These modeling concepts can be described naturally using XML schema. We intro...
ICDE
2006
IEEE
13 years 11 months ago
2006
IEEE
Structured P2P systems based on distributed hash tables are a popular choice for building large-scaled data management systems. Generally, they only support exact match queries, b...
FOCS
1998
IEEE
13 years 10 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
ICDE
2002
IEEE
14 years 7 months ago
2002
IEEE
XML and other semi-structured data may have partially specified or missing schema information, motivating the use of a structural summary which can be automatically computed from ...
SDMW
2004
Springer
13 years 11 months ago
2004
Springer
Abstract. A new simple and efficient database encryption scheme is presented. The new scheme enables encrypting the entire content of the database without changing its structure. I...