306 search results - page 34 / 62 » Spark: top-k keyword query in relational databases |
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...
PVLDB
2008
13 years 6 months ago
2008
The number of potentially-related data resources available for querying -- databases, data warehouses, virtual integrated schemas -continues to grow rapidly. Perhaps no area has s...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
Given an author-conference graph, how do we answer proximity queries (e.g., what are the most related conferences for John Smith?); how can we tailor the search result if the user...
WWW
2001
ACM
14 years 8 months ago
2001
ACM
A wealth of information is available on the Web. But often, such data are hidden behind form interfaces which allow only a restrictive set of queries over the underlying databases...