Title
Logics and Automata for Totally Ordered Trees
Abstract
A totally ordered tree is a tree equipped with an additional total order on its nodes. It provides a formal model for data that comes with both a hierarchical and a sequential structure; one example for such data are natural language sentences, where a sequential structure is given by word order, and a hierarchical structure is given by grammatical relations between words. In this paper, we study monadic second-order logic (MSO) for totally ordered terms. We show that the MSO satisfiability problem of unrestricted structures is undecidable, but give a decision procedure for practically relevant sub-classes, based on tree automata.
Year
DOI
Venue
2008
10.1007/978-3-540-70590-1_15
RTA
Keywords
Field
DocType
mso satisfiability problem,word order,unrestricted structure,decision procedure,sequential structure,hierarchical structure,grammatical relation,additional total order,tree automaton,formal model,computational linguistics,satisfiability,natural language,total order
Discrete mathematics,Word order,Computer science,Automaton,Computational linguistics,Boolean satisfiability problem,Algorithm,Natural language,Tree structure,Monad (functional programming),Undecidable problem
Conference
Volume
ISSN
Citations 
5117
0302-9743
1
PageRank 
References 
Authors
0.34
10
2
Name
Order
Citations
PageRank
Marco Kuhlmann130923.06
Joachim Niehren297166.53