2468 search results - page 375 / 494 » Aggregation operators 2003 |
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
While work in recent years has demonstrated that wavelets can be efficiently used to compress large quantities of data and provide fast and fairly accurate answers to queries, lit...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
This paper presents a novel strategy for temporal coalescing. Temporal coalescing merges the temporal extents of value-equivalent tuples. A temporal extent is usually coalesced of...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
While the XML Stylesheet Language for Transformations (XSLT) was not designed as a query language, it is well-suited for many query-like operations on XML documents including sele...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
We discuss the design of an acquisitional query processor for data collection in sensor networks. Acquisitional issues are those that pertain to where, when, and how often data is...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
To facilitate queries over semi-structured data, various structural summaries have been proposed. Structural summaries are derived directly from the data and serve as indices for ...