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VLDB
1999
ACM
188views Database» more  VLDB 1999»
15 years 8 months ago
Comparing Hierarchical Data in External Memory
We present an external-memory algorithm for computing a minimum-cost edit script between two rooted, ordered, labeled trees. The I/O, RAM, and CPU costs of our algorithm are, resp...
Sudarshan S. Chawathe
ESANN
2007
15 years 5 months ago
Visualisation of tree-structured data through generative probabilistic modelling
We present a generative probabilistic model for the topographic mapping of tree structured data. The model is formulated as constrained mixture of hidden Markov tree models. A nat...
Nikolaos Gianniotis, Peter Tino
DAM
2006
97views more  DAM 2006»
15 years 4 months ago
Fully dynamic recognition algorithm and certificate for directed cographs
This paper presents an optimal fully dynamic recognition algorithm for directed cographs. Given the modular decomposition tree of a directed cograph G, the algorithm supports arc ...
Christophe Crespelle, Christophe Paul
150
Voted
SODA
1998
ACM
157views Algorithms» more  SODA 1998»
15 years 5 months ago
A Polynomial Time Approximation Scheme for Minimum Routing Cost Spanning Trees
Given an undirected graph with nonnegative costs on the edges, the routing cost of any of its spanning trees is the sum over all pairs of vertices of the cost of the path between t...
Bang Ye Wu, Giuseppe Lancia, Vineet Bafna, Kun-Mao...
98
Voted
ISLPED
2003
ACM
82views Hardware» more  ISLPED 2003»
15 years 9 months ago
Multivoltage scheduling with voltage-partitioned variable storage
Multivoltage scheduling (MVS) for datapaths offers the energy savings of voltage scaling on a per-operation basis with a voltage aware operator scheduling. This work investigates...
Amitabh Menon, S. K. Nandy, Mahesh Mehendale