2859 search results - page 479 / 572 » Querying Complex Structured Databases |
VLDB
2004
ACM
14 years 8 months ago
2004
ACM
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
The recent advances in hardware and software have enabled the capture of different measurements of data in a wide range of fields. These measurements are generated continuously an...
PODS
2006
ACM
14 years 8 months ago
2006
ACM
Skew is prevalent in data streams, and should be taken into account by algorithms that analyze the data. The problem of finding "biased quantiles"-- that is, approximate...
WEBI
2009
Springer
14 years 2 months ago
2009
Springer
—The key to Deep Web crawling is to submit promising keywords to query form and retrieve Deep Web content efficiently. To select keywords, existing methods make a decision based ...
IDEAS
2007
IEEE
14 years 2 months ago
2007
IEEE
A sliding window join (SWJoin) is becoming an integral operation in every stream data management system. In some streaming applications the increasing volume of streamed data as w...