Sciweavers

958 search results - page 10 / 192
» Efficient data structures for range-aggregate queries on tre...
Sort
View
SIAMCOMP
2012
13 years 6 days ago
An Optimal Dynamic Data Structure for Stabbing-Semigroup Queries
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...
Pankaj K. Agarwal, Lars Arge, Haim Kaplan, Eyal Mo...
CIKM
2006
Springer
14 years 11 months ago
Processing relaxed skylines in PDMS using distributed data summaries
Peer Data Management Systems (PDMS) are a natural extension of heterogeneous database systems. One of the main tasks in such systems is efficient query processing. Insisting on co...
Katja Hose, Christian Lemke, Kai-Uwe Sattler
FOCS
2009
IEEE
15 years 1 months ago
Space-Efficient Framework for Top-k String Retrieval Problems
Given a set D = {d1, d2, ..., dD} of D strings of total length n, our task is to report the "most relevant" strings for a given query pattern P. This involves somewhat mo...
Wing-Kai Hon, Rahul Shah, Jeffrey Scott Vitter
ICIP
2001
IEEE
15 years 11 months ago
Color image coding, indexing and retrieval using binary space partitioning tree
This paper presents a unified approach to colour image coding, content-based indexing, and retrieval for database applications. The binary space partitioning (BSP) tree, tradition...
Guoping Qiu, S. Sudirman
ISAAC
2007
Springer
156views Algorithms» more  ISAAC 2007»
15 years 4 months ago
Approximate Range Searching in External Memory
In this paper, we present two linear-size external memory data structures for approximate range searching. Our first structure, the BAR-B-tree, stores a set of N points in Rd and ...
Micha Streppel, Ke Yi