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55,449
Network Coding in Undirected Networks
, 2004
"... Recent work in network coding shows that, it is necessary to consider both the routing and coding strategies to achieve optimal throughput of information transmission in data networks. So far, most research on network coding has focused on the model of directed networks, where each communication li ..."
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Cited by 82 (18 self)
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link has a fixed direction. In this paper, we study the benefits of network coding in undirected networks, where each communication link is bidirectional. Our theoretical results show that, for a single unicast or broadcast session, there are no improvements with respect to throughput due to network
Influence Maximization in Undirected Networks
"... We consider the problem of finding a set of k vertices of maximal total influence in a given undirected network, under the independent cascade (IC) model of influence spread. It is known that influence is submodular in the IC model, and hence a greedy algorithm achieves a (1 − 1/e) approximation to ..."
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We consider the problem of finding a set of k vertices of maximal total influence in a given undirected network, under the independent cascade (IC) model of influence spread. It is known that influence is submodular in the IC model, and hence a greedy algorithm achieves a (1 − 1/e) approximation
Mapping semantic networks to undirected networks
 International Journal of Applied Mathematics and Computer Science
, 2008
"... Abstract—There exists an injective, informationpreserving function that maps a semantic network (i.e a directed labeled network) to a directed network (i.e. a directed unlabeled network). The edge label in the semantic network is represented as a topological feature of the directed network. Also, t ..."
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Cited by 2 (2 self)
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, there exists an injective function that maps a directed network to an undirected network (i.e. an undirected unlabeled network). The edge directionality in the directed network is represented as a topological feature of the undirected network. Through function composition, there exists an injective function
On the Capacity Bounds of Undirected Networks
, 804
"... Abstract — In this work we improve on the bounds presented in [1] for network coding gain in the undirected case. A tightened bound for the undirected multicast problem with three terminals is derived. An interesting result shows that with fractional routing, routing throughput can achieve at least ..."
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Abstract — In this work we improve on the bounds presented in [1] for network coding gain in the undirected case. A tightened bound for the undirected multicast problem with three terminals is derived. An interesting result shows that with fractional routing, routing throughput can achieve at least
The Irreducible Spine(s) of Undirected Networks
"... Abstract. Using closure and neighborhood concepts, we show that within every undirected network, or graph, there is a unique irreducible subgraph which we call its “spine”. The chordless cycles which comprise this irreducible core effectively characterize the connectivity structure of the network as ..."
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Cited by 1 (0 self)
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Abstract. Using closure and neighborhood concepts, we show that within every undirected network, or graph, there is a unique irreducible subgraph which we call its “spine”. The chordless cycles which comprise this irreducible core effectively characterize the connectivity structure of the network
DECENTRALIZED DETECTION IN UNDIRECTED NETWORK TOPOLOGIES
"... Consider the wellstudied decentralized Bayesian detection problem with the twist of an undirected network topology, each edge representing a bidirectional (and perhaps unreliable) finiterate communication link between two distributed sensor nodes. Every node operates in parallel, processing any pa ..."
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Cited by 1 (0 self)
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Consider the wellstudied decentralized Bayesian detection problem with the twist of an undirected network topology, each edge representing a bidirectional (and perhaps unreliable) finiterate communication link between two distributed sensor nodes. Every node operates in parallel, processing any
On the price of stability for undirected network design
, 2010
"... We continue the study of the effects of selfish behavior in the network design problem. We provide new bounds for the price of stability for network design with fair cost allocation for undirected graphs. We consider the most general case, for which the best known upper bound is the Harmonic number ..."
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Cited by 5 (0 self)
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We continue the study of the effects of selfish behavior in the network design problem. We provide new bounds for the price of stability for network design with fair cost allocation for undirected graphs. We consider the most general case, for which the best known upper bound is the Harmonic number
From Secret Key Agreement to Matroidal Undirected Network
"... An undirected network link model is formulated, generalizing the usual undirected graphical model. The optimal direction for multicasting can be found in polynomial time with respect to the size of the network, despite the exponential number of possible directions. A more general problem is conside ..."
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An undirected network link model is formulated, generalizing the usual undirected graphical model. The optimal direction for multicasting can be found in polynomial time with respect to the size of the network, despite the exponential number of possible directions. A more general problem
Results 1  10
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55,449