1552 search results - page 234 / 311 » Creating Database Queries by Demonstration |
168
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ICDE
2002
IEEE
15 years 11 months ago
2002
IEEE
Difference, intersection, semi-join and anti-semi-join may be considered binary subset operators, in that they all return a subset of their left-hand argument. These operators are...
KDD
2004
ACM
15 years 10 months ago
2004
ACM
Automatically segmenting unstructured text strings into structured records is necessary for importing the information contained in legacy sources and text collections into a data ...
155
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
We consider systems for data sharing among heterogeneous peers related by a network of schema mappings. Each peer has a locally controlled and edited database instance, but wants ...
151
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
As applications within and outside the enterprise encounter increasing volumes of unstructured data, there has been renewed interest in the area of information extraction (IE) ? t...
EDBT
2008
ACM
15 years 10 months ago
2008
ACM
Sensor networks have been widely used to collect data about the environment. When analyzing data from these systems, people tend to ask exploratory questions--they want to find su...