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» Hardness Results and Efficient Algorithms for Graph Powers
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FOCS
2009
IEEE
15 years 4 months ago
On Allocating Goods to Maximize Fairness
Given a set A of m agents and a set I of n items, where agent A ∈ A has utility uA,i for item i ∈ I, our goal is to allocate items to agents to maximize fairness. Specificall...
Deeparnab Chakrabarty, Julia Chuzhoy, Sanjeev Khan...
APPROX
2009
Springer
195views Algorithms» more  APPROX 2009»
15 years 4 months ago
Approximating Node-Connectivity Augmentation Problems
The (undirected) Node Connectivity Augmentation (NCA) problem is: given a graph J = (V, EJ ) and connectivity requirements {r(u, v) : u, v ∈ V }, find a minimum size set I of n...
Zeev Nutov
STOC
2004
ACM
121views Algorithms» more  STOC 2004»
15 years 10 months ago
Lower bounds for dynamic connectivity
We prove an (lg n) cell-probe lower bound on maintaining connectivity in dynamic graphs, as well as a more general trade-off between updates and queries. Our bound holds even if t...
Mihai Patrascu, Erik D. Demaine
88
Voted
EVOW
2004
Springer
15 years 3 months ago
Top-Down Evolutionary Image Segmentation Using a Hierarchical Social Metaheuristic
Abstract. This paper presents an application of a hierarchical social (HS) metaheuristic to region-based segmentation. The original image is modelled as a simplified image graph, w...
Abraham Duarte, Ángel Sánchez, Felip...
93
Voted
ICCCN
2008
IEEE
15 years 4 months ago
A Position-Based Deployment and Routing Approach for Directional Wireless Mesh Networks
—Observing that simplicity implies efficiency and scalability, this paper proposes a position-based deployment and routing strategy, and then gives a concrete approach under this...
Weisheng Si, Selvakennedy Selvadurai