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» Bipartite roots of graphs
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COCOON
2005
Springer
14 years 4 months ago
Bounded Degree Closest k-Tree Power Is NP-Complete
Abstract. An undirected graph G = (V, E) is the k-power of an undirected tree T = (V, E ) if (u, v) ∈ E iff u and v are connected by a path of length at most k in T. The tree T ...
Michael Dom, Jiong Guo, Rolf Niedermeier
SODA
2010
ACM
178views Algorithms» more  SODA 2010»
14 years 8 months ago
Tree Embeddings for Two-Edge-Connected Network Design
The group Steiner problem is a classical network design problem where we are given a graph and a collection of groups of vertices, and want to build a min-cost subgraph that conne...
Anupam Gupta, Ravishankar Krishnaswamy, R. Ravi
MFCS
2007
Springer
14 years 5 months ago
On Approximation of Bookmark Assignments
Consider a rooted directed acyclic graph G = (V, E) with root r, representing a collection V of web pages connected via a set E of hyperlinks. Each node v is associated with the pr...
Yuichi Asahiro, Eiji Miyano, Toshihide Murata, Hir...
CAISE
2004
Springer
14 years 2 months ago
Simple and Minimum-Cost Satisfiability for Goal Models
Abstract. Goal models have been used in Computer Science in order to represent software requirements, business objectives and design qualities. In previous work we have presented a...
Roberto Sebastiani, Paolo Giorgini, John Mylopoulo...
VLDB
2005
ACM
144views Database» more  VLDB 2005»
14 years 4 months ago
Bidirectional Expansion For Keyword Search on Graph Databases
Relational, XML and HTML data can be represented as graphs with entities as nodes and relationships as edges. Text is associated with nodes and possibly edges. Keyword search on s...
Varun Kacholia, Shashank Pandit, Soumen Chakrabart...