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COMPGEOM
2009
ACM
16 years 28 days ago
Approximate center points with proofs
We present the Iterated-Tverberg algorithm, the first deterministic algorithm for computing an approximate centerpoint of a set S ∈ Rd with running time sub-exponential in d. T...
Gary L. Miller, Donald Sheehy
ANNALS
2006
63views more  ANNALS 2006»
15 years 6 months ago
The Virtual Life of ENIAC: Simulating the Operation of the First Electronic Computer
This paper describes an interactive simulation of the Electronical Numerical Integrator and Computer (ENIAC). With the simulator, the user can wire up complex configurations of th...
Till Zoppke, Raúl Rojas
AAAI
2010
15 years 7 months ago
Robust Policy Computation in Reward-Uncertain MDPs Using Nondominated Policies
The precise specification of reward functions for Markov decision processes (MDPs) is often extremely difficult, motivating research into both reward elicitation and the robust so...
Kevin Regan, Craig Boutilier
NIPS
2007
15 years 7 months ago
Local Algorithms for Approximate Inference in Minor-Excluded Graphs
We present a new local approximation algorithm for computing MAP and logpartition function for arbitrary exponential family distribution represented by a finite-valued pair-wise ...
Kyomin Jung, Devavrat Shah
MFCS
2005
Springer
15 years 12 months ago
Greedy Approximation via Duality for Packing, Combinatorial Auctions and Routing
We study simple greedy approximation algorithms for general class of integer packing problems. We provide a novel analysis based on the duality theory of linear programming. This e...
Piotr Krysta