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LICS
1997
IEEE
15 years 4 months ago
The Complexity of Subtype Entailment for Simple Types
A subtyping 0 is entailed by a set of subtyping constraints C, written C j= 0, if every valuation (mapping of type variables to ground types) that satisfies C also satisfies 0. ...
Fritz Henglein, Jakob Rehof
ALGORITHMICA
2011
14 years 6 months ago
Crossing Numbers of Graphs with Rotation Systems
We show that computing the crossing number and the odd crossing number of a graph with a given rotation system is NP-complete. As a consequence we can show that many of the well-k...
Michael J. Pelsmajer, Marcus Schaefer, Daniel Stef...
FOCS
2002
IEEE
15 years 4 months ago
The Partition Technique for Overlays of Envelopes
We obtain a near-tight bound of O(n3+ε ), for any ε > 0, on the complexity of the overlay of the minimization diagrams of two collections of surfaces in four dimensions. This...
Vladlen Koltun, Micha Sharir
IJRR
2007
335views more  IJRR 2007»
14 years 11 months ago
Homography-based 2D Visual Tracking and Servoing
The objective of this paper is to propose a new homography-based approach to image-based visual tracking and servoing. The visual tracking algorithm proposed in the paper is based...
Selim Benhimane, Ezio Malis
STACS
2009
Springer
15 years 4 months ago
Lower Bounds for Multi-Pass Processing of Multiple Data Streams
ABSTRACT. This paper gives a brief overview of computation models for data stream processing, and it introduces a new model for multi-pass processing of multiple streams, the so-ca...
Nicole Schweikardt