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CONSTRAINTS
2008
90views more  CONSTRAINTS 2008»
13 years 4 months ago
Combining Tree Partitioning, Precedence, and Incomparability Constraints
The tree constraint partitions a directed graph into node-disjoint trees. In many practical applications that involve such a partition, there exist side constraints specifying requ...
Nicolas Beldiceanu, Pierre Flener, Xavier Lorca
ACL
2001
13 years 6 months ago
Topological Dependency Trees: A Constraint-Based Account of Linear Precedence
We describe a new framework for dependency grammar, with a modular decomposition of immediate dependency and linear precedence. Our approach distinguishes two orthogonal yet mutua...
Denys Duchier, Ralph Debusmann
RTA
2000
Springer
13 years 8 months ago
Parallelism Constraints
Parallelism constraints are logical descriptions of trees. Parallelism constraints subsume dominance constraints and are equal in expressive power to context unification. Paralleli...
Katrin Erk, Joachim Niehren
AI
2008
Springer
13 years 4 months ago
Properties of tree convex constraints
It is known that a tree convex network is globally consistent if it is path consistent. However, if a tree convex network is not path consistent, enforcing path consistency on it ...
Yuanlin Zhang, Eugene C. Freuder
AAAI
2004
13 years 6 months ago
Tractable Tree Convex Constraint Networks
A binary constraint network is tree convex if we can construct a tree for the domain of the variables so that for any constraint, no matter what value one variable takes, all the ...
Yuanlin Zhang, Eugene C. Freuder