PODS
2007
ACM
15 years 17 days ago
2007
ACM
Schema mappings are high-level specifications that describe the relationship between two database schemas. Two operators on schema mappings, namely the composition operator and th...
PODS
2007
ACM
15 years 17 days ago
2007
ACM
The pebble tree automaton and the pebble tree transducer are enhanced by additionally allowing an unbounded number of `invisible' pebbles (as opposed to the usual `visible�...
PODS
2007
ACM
15 years 17 days ago
2007
ACM
PODS
2007
ACM
15 years 17 days ago
2007
ACM
Many applications today need to manage large data sets with uncertainties. In this paper we describe the foundations of managing data where the uncertainties are quantified as pro...
PODS
2007
ACM
15 years 17 days ago
2007
ACM
IP packet streams consist of multiple interleaving IP flows. Statistical summaries of these streams, collected for different measurement periods, are used for characterization of ...
PODS
2007
ACM
15 years 17 days ago
2007
ACM
PODS
2007
ACM
15 years 17 days ago
2007
ACM
We consider the problem of constructing decision trees for entity identification from a given relational table. The input is a table containing information about a set of entities...
PODS
2007
ACM
15 years 17 days ago
2007
ACM
XML and semi-structured data are now de-facto standards for data exchange, and it is often the case that published or exchanged XML documents have specic restrictions on how they ...
PODS
2007
ACM
15 years 17 days ago
2007
ACM
Query containment has been studied extensively for fragments of
PODS
2007
ACM
15 years 17 days ago
2007
ACM
The contingency table is a work horse of official statistics, the format of reported data for the US Census, Bureau of Labor Statistics, and the Internal Revenue Service. In many ...