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INFOCOM
2012
IEEE
13 years 7 months ago
On the construction of data aggregation tree with minimum energy cost in wireless sensor networks: NP-completeness and approxima
—In many applications, it is a basic operation for the sink to periodically collect reports from all sensors. Since the data gathering process usually proceeds for many rounds, i...
Tung-Wei Kuo, Ming-Jer Tsai
STOC
2010
ACM
193views Algorithms» more  STOC 2010»
15 years 9 months ago
Maintaining a large matching and a small vertex cover
We consider the problem of maintaining a large matching and a small vertex cover in a dynamically changing graph. Each update to the graph is either an edge deletion or an edge in...
Krzysztof Onak, Ronitt Rubinfeld
BMCBI
2007
227views more  BMCBI 2007»
15 years 5 months ago
Growing functional modules from a seed protein via integration of protein interaction and gene expression data
Background: Nowadays modern biology aims at unravelling the strands of complex biological structures such as the protein-protein interaction (PPI) networks. A key concept in the o...
Ioannis A. Maraziotis, Konstantina Dimitrakopoulou...
FCT
2001
Springer
15 years 9 months ago
Polynomial Time Algorithms for Finding Unordered Tree Patterns with Internal Variables
Many documents such as Web documents or XML files have tree structures. A term tree is an unordered tree pattern consisting of internal variables and tree structures. In order to ...
Takayoshi Shoudai, Tomoyuki Uchida, Tetsuhiro Miya...
RECOMB
2005
Springer
16 years 5 months ago
Lower Bounds for Maximum Parsimony with Gene Order Data
Abstract. In this paper, we study lower bound techniques for branchand-bound algorithms for maximum parsimony, with a focus on gene order data. We give a simple O(n3 ) time dynamic...
Abraham Bachrach, Kevin Chen, Chris Harrelson, Rad...