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ENTCS
2008
123views more  ENTCS 2008»
14 years 11 months ago
A Chart Semantics for the Pi-Calculus
We present a graphical semantics for the pi-calculus, that is easier to visualize and better suited to expressing causality and temporal properties than conventional relational se...
Johannes Borgström, Andrew D. Gordon, Andrew ...
MVA
2008
14 years 11 months ago
Retrieving articulated 3-D models using medial surfaces
Abstract We consider the use of medial surfaces to represent symmetries of 3-D objects. This allows for a qualitative abstraction based on a directed acyclic graph of components an...
Kaleem Siddiqi, Juan Zhang, Diego Macrini, Ali Sho...
111
Voted
FCT
1993
Springer
15 years 3 months ago
Generalized Topological Sorting in Linear Time
The generalized topological sorting problem takes as input a positive integer k and a directed, acyclic graph with some vertices labeled by positive integers, and the goal is to la...
Torben Hagerup, Martin Maas
93
Voted
WEBDB
2004
Springer
154views Database» more  WEBDB 2004»
15 years 5 months ago
Twig Query Processing over Graph-Structured XML Data
XML and semi-structured data is usually modeled using graph structures. Structural summaries, which have been proposed to speedup XML query processing have graph forms as well. Th...
Zografoula Vagena, Mirella Moura Moro, Vassilis J....
ICPR
2008
IEEE
16 years 26 days ago
On efficient Viterbi decoding for hidden semi-Markov models
We present algorithms for improved Viterbi decoding for the case of hidden semi-Markov models. By carefully constructing directed acyclic graphs, we pose the decoding problem as t...
Bonnie K. Ray, Jianying Hu, Ritendra Datta