716 search results - page 138 / 144 » Optimizing Queries in Extended Relational Databases |
CIKM
2000
Springer
15 years 3 months ago
2000
Springer
An e ective bu er management system is crucial for any database management system. While much work has been expended to provide extensible data types,extensible query languages an...
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SIGMOD
2011
ACM
14 years 1 months ago
2011
ACM
Today’s one-pass analytics applications tend to be data-intensive in nature and require the ability to process high volumes of data efficiently. MapReduce is a popular programm...
SSDBM
2005
IEEE
15 years 4 months ago
2005
IEEE
Several studies have demonstrated the effectiveness of Haar wavelets in reducing large amounts of data down to compact wavelet synopses that can be used to obtain fast, accurate a...
VLDB
1987
ACM
15 years 2 months ago
1987
ACM
: A buffer is a main-memory area used to reduce accessto disks. The buffer holds pages from secondary storage files. A processrequesting a page causesa fault if the pageis not in t...
ECAI
1998
Springer
15 years 2 months ago
1998
Springer
Abstract. We extend different Description Logics by concrete domains (such as integers and reals) and by aggregation functions over these domains (such as min;max;count;sum), which...