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» Similarity Queries on Structured Data in Structured Overlays
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COMPGEOM
2001
ACM
15 years 10 months ago
Segment intersection searching problems in general settings
We consider segment intersection searching amidst (possibly intersecting) algebraic arcs in the plane. We show how to preprocess n arcs in time O(n2+ ) into a data structure of si...
Vladlen Koltun
ALENEX
2003
139views Algorithms» more  ALENEX 2003»
15 years 8 months ago
Interpolation over Light Fields with Applications in Computer Graphics
We present a data structure, called a ray interpolant tree, or RI-tree, which stores a discrete set of directed lines in 3-space, each represented as a point in 4-space. Each dire...
F. Betul Atalay, David M. Mount
STOC
2003
ACM
193views Algorithms» more  STOC 2003»
16 years 7 months ago
Space efficient dynamic stabbing with fast queries
In dynamic stabbing, we operate on a dynamic set of intervals. A stabbing query asks for an interval containing a given point. This basic problem encodes problems such as method l...
Mikkel Thorup
ICDE
2009
IEEE
118views Database» more  ICDE 2009»
16 years 1 months ago
An Incremental Threshold Method for Continuous Text Search Queries
Abstract—A text filtering system monitors a stream of incoming documents, to identify those that match the interest profiles of its users. The user interests are registered at ...
Kyriakos Mouratidis, HweeHwa Pang
ICDE
2005
IEEE
124views Database» more  ICDE 2005»
16 years 11 days ago
SemCrypt - Ensuring Privacy of Electronic Documents Through Semantic-Based Encrypted Query Processing
The trend towards outsourcing increases the number of documents stored at external service providers. This storage model, however, raises privacy and security concerns because the...
Michael Schrefl, Katharina Grün, Jürgen ...