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» An extensive math query language
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ACMSE
2005
ACM
14 years 29 days ago
Metadata management and relational databases
A simple extension to the relational model that permits metadata (more generally metaknowledge) to be stored and manipulated as first class data is proposed. The accompanying que...
Shun Yan Cheung, James J. Lu, Catharine M. Wyss
WWW
2005
ACM
14 years 8 months ago
Constructing extensible XQuery mappings
Constructing and maintaining semantic mappings are necessary but troublesome in data sharing systems. While most current work focuses on seeking automated techniques to solve this...
Gang Qian, Yisheng Dong
ICEBE
2005
IEEE
168views Business» more  ICEBE 2005»
14 years 1 months ago
Frequency Operators for Condensative Queries over Data Streams
Over a traditional Database Management System (DBMS), the answer to an aggregate query is usually much smaller than the answer to a similar nonaggregate query. Therefore, we call ...
Lisha Ma, Werner Nutt
SDM
2003
SIAM
148views Data Mining» more  SDM 2003»
13 years 8 months ago
ATLaS: A Native Extension of SQL for Data Mining
A lack of power and extensibility in their query languages has seriously limited the generality of DBMSs and hampered their ability to support data mining applications. Thus, ther...
Haixun Wang, Carlo Zaniolo
ALT
2003
Springer
14 years 4 months ago
On the Learnability of Erasing Pattern Languages in the Query Model
A pattern is a finite string of constant and variable symbols. The erasing language generated by a pattern p is the set of all strings that can be obtained by substituting (possib...
Steffen Lange, Sandra Zilles