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SMA
2008
ACM
172views Solid Modeling» more  SMA 2008»
13 years 8 months ago
Guarding curvilinear art galleries with edge or mobile guards
In this paper we consider the problem of monitoring an art gallery modeled as a polygon, the edges of which are arcs of curves. We consider two types of guards: edge guards (these...
Menelaos I. Karavelas
GIS
2005
ACM
14 years 10 months ago
Contraflow network reconfiguration for evacuation planning: a summary of results
Contraflow, or lane reversal, is a way of increasing outbound capacity of a real network by reversing the direction of inbound roads during evacuations. The contraflow is consider...
Sangho Kim, Shashi Shekhar
STOC
2009
ACM
181views Algorithms» more  STOC 2009»
14 years 9 months ago
The detectability lemma and quantum gap amplification
The quantum analog of a constraint satisfaction problem is a sum of local Hamiltonians - each (term of the) Hamiltonian specifies a local constraint whose violation contributes to...
Dorit Aharonov, Itai Arad, Zeph Landau, Umesh V. V...
SIGMOD
2009
ACM
139views Database» more  SIGMOD 2009»
14 years 9 months ago
Detecting and resolving unsound workflow views for correct provenance analysis
views abstract groups of tasks in a workflow into high level composite tasks, in order to reuse sub-workflows and facilitate provenance analysis. However, unless a view is careful...
Peng Sun, Ziyang Liu, Susan B. Davidson, Yi Chen
MOBIHOC
2008
ACM
14 years 8 months ago
Construction algorithms for k-connected m-dominating sets in wireless sensor networks
A Connected Dominating Set (CDS) working as a virtual backbone is an effective way to decrease the overhead of routing in a wireless sensor network. Furthermore, a kConnected m-Do...
Yiwei Wu, Yingshu Li