6004 search results - page 145 / 1201 » Parallelizing query optimization |
DEXA
2000
Springer
14 years 2 months ago
2000
Springer
Page ordering is to define the order of pages in one-dimensional storage for storing two-dimensional spatial data to reduce the number of disk seeks. Previous works relating to pag...
AAAI
2008
14 years 14 days ago
2008
Answering conjunctive queries (CQs) has been recognized as a key task for the usage of Description Logics (DLs) in a number of applications, and has thus been studied by many auth...
VLDB
2001
ACM
14 years 10 months ago
2001
ACM
SIAMCOMP
2012
12 years 16 days ago
2012
Let S be a set of n intervals in R, and let (S, +) be any commutative semigroup. We assign a weight ω(s) ∈ S to each interval in S. For a point x ∈ R, let S(x) ⊆ S be the se...
EDBT
2011
ACM
13 years 1 months ago
2011
ACM
Continuous top-k queries, which report a certain number (k) of top preferred objects from data streams, are important for a broad class of real-time applications, ranging from fi...