SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
We consider the problem of mapping data in peer-topeer data-sharing systems. Such systems often rely on the use of mapping tables listing pairs of corresponding values to search f...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Most previous solutions to the schema matching problem rely in some fashion upon identifying "similar" column names in the schemas to be matched, or by recognizing commo...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
A query optimizer compares alternative plans in its search space to find the best plan for a given query. Depending on the search space and the enumeration algorithm, optimizers v...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
We consider the problem of evaluating large numbers of XPath filters, each with many predicates, on a stream of XML documents. The solution we propose is to lazily construct a sin...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
We consider the problem of efficiently producing ranked results for keyword search queries over hyperlinked XML documents. Evaluating keyword search queries over hierarchical XML ...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. In ...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
SIGMOD
2003
ACM
14 years 7 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 7 months ago
2003
ACM
Webcams, microphones, pressure gauges and other sensors provide exciting new opportunities for querying and monitoring the physical world. In this paper we focus on querying wide ...
SIGMOD
2003
ACM
14 years 7 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...