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163
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WSDM
2012
ACM
14 years 7 hour ago
2012
ACM
It is well known that different types of social ties have essentially different influence between people. However, users in online social networks rarely categorize their contact...
226
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GIS
2006
ACM
16 years 5 months ago
2006
ACM
Efficient evaluation of spatial queries is an important issue in spatial database. Among spatial operations, spatial join is very useful, intersection being the most common predic...
171
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SIGMOD
2004
ACM
16 years 4 months ago
2004
ACM
Schema matching identifies elements of two given schemas that correspond to each other. Although there are many algorithms for schema matching, little has been written about build...
132
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PODS
2001
ACM
16 years 4 months ago
2001
ACM
Assume that each object in a database has m grades, or scores, one for each of m attributes. For example, an object can have a color grade, that tells how red it is, and a shape g...
173
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CAISE
2003
Springer
15 years 9 months ago
2003
Springer
Abstract. Even though SQL has become widely accepted as a language for implementing relational database schemas and querying data, there are cases where s experience the need for n...