552 search results - page 22 / 111 » Efficient Algorithms for Processing XPath Queries |
80
Voted
CIKM
2008
Springer
14 years 11 months ago
2008
Springer
Query processing techniques for XML data have focused mainly on tree-pattern queries (TPQs). However, the need for querying XML data sources whose structure is very complex or not...
73
Voted
PVLDB
2008
14 years 9 months ago
2008
Unlike traditional database queries, keyword queries do not adhere to predefined syntax and are often dirty with irrelevant words from natural languages. This makes accurate and e...
197
click to vote
ICDE
2008
IEEE
16 years 9 months ago
2008
IEEE
This paper introduces an efficient algorithm for Producing Early Results in Multi-join query plans (PermJoin, for short). While most previous research focuses only on the
case of ...
ISPAN
2002
IEEE
15 years 2 months ago
2002
IEEE
Index is an important element in databases, and the existence of index is unavoidable. When an index has been built on a particular attribute, database operations (e.g. selection,...
ICDCS
2008
IEEE
15 years 4 months ago
2008
IEEE
This paper considers a multi-query optimization issue for distributed similarity query processing, which attempts to exploit the dependencies in the derivation of a query evaluati...