120
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ALGORITHMICA
2000
15 years 9 days ago
2000
We present an O(NV +V 3) time algorithm for enumerating all spanning trees of a directed graph. This improves the previous best known bound of O(NE + V + E) [1] when V 2 = o(N), wh...
111
Voted
CORR
2007
Springer
15 years 13 days ago
2007
Springer
We introduce the (private) entropy of a directed graph (in a new network coding sense) as well as a number of related concepts. We show that the entropy of a directed graph is ide...
77
Voted
COMBINATORICS
2007
15 years 14 days ago
2007
In this paper, we revisit the enumeration of directed animals using gas models. We show that there exists a natural construction of random directed animals on any directed graph t...
DM
2006
15 years 14 days ago
2006
Let (x, y) be a bivariate polynomial with complex coefficients. The zeroes of (x, y) are given a combinatorial structure by considering them as arcs of a directed graph G(). This p...
88
Voted
CORR
2006
Springer
15 years 15 days ago
2006
Springer
In this paper, we revisit the enumeration of directed animals using gas models. We show that there exists a natural construction of random directed animals on any directed graph t...
107
Voted
GC
2008
Springer
15 years 15 days ago
2008
Springer
For a directed graph G without loops or parallel edges, let (G) denote the size of the smallest feedback arc set, i.e., the smallest subset X E(G) such that G \ X has no directed...
98
Voted
SIGCOMM
2010
ACM
15 years 20 days ago
2010
ACM
Microblogging services, such as Twitter, are among the most important online social networks(OSNs). Different from OSNs such as Facebook, the topology of microblogging service is ...
98
Voted
AAAI
1996
15 years 1 months ago
1996
The state space of most adversary games is a directed graph. However, due to the success of simple recursive algorithms based on Alpha-Beta, theoreticians and practitioners have c...
122
Voted
NIPS
2004
15 years 1 months ago
2004
Given a directed graph in which some of the nodes are labeled, we investigate the question of how to exploit the link structure of the graph to infer the labels of the remaining u...
83
Voted
APPINF
2003
15 years 1 months ago
2003
This paper presents an algorithm for recursive data processing in directed graphs. The proposed algorithm applies graph reduction in order to determine both starting points and a ...