651 search results - page 118 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
CIDR
2009
13 years 8 months ago
2009
High-volume, high-speed data streams may overwhelm the capabilities of stream processing systems; techniques such as data prioritization, avoidance of unnecessary processing and o...
CIKM
2010
Springer
13 years 6 months ago
2010
Springer
Term-weighting functions derived from various models of retrieval aim to model human notions of relevance more accurately. However, there is a lack of analysis of the sources of e...
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
Approximating the joint data distribution of a multi-dimensional data set through a compact and accurate histogram synopsis is a fundamental problem arising in numerous practical ...
VLDB
1987
ACM
13 years 11 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...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Counting in general, and estimating the cardinality of (multi-) sets in particular, is highly desirable for a large variety of applications, representing a foundational block for ...