Results 251 to 260 of about 2,840 (305)

Graph grammars and logic programming [PDF]

open access: yes, 2005
In this paper we investigate the relationship between the algebraic definition of graph grammars and logic programming. In particular, we show that the operational semantics of any logic program can be faithfully simulated by a particular context-free hypergraph grammar.
CORRADINI, ANDREA   +4 more
openaire   +3 more sources

First Order Graph Grammars

SIAM Journal on Computing, 1974
In this paper we consider first order context-free, linear, and regular graph grammars and obtain many results similar to those for the corresponding string grammars. We obtain normal forms for context-free and regular graph grammars, simplification lemmas, and algorithms for membership, emptiness, finiteness and infiniteness.
exaly   +2 more sources

Graph compression using graph grammars. [PDF]

open access: yes, 2018
This thesis presents work done on compressed graph representations via hyperedge replacement grammars. It comprises two main parts. Firstly the RePair compression scheme, known for strings and trees, is generalized to graphs using graph grammars. Given an object, the scheme produces a small context-free grammar generating the object (called a “straight-
Peternek, Fabian Hans Adolf
openaire   +4 more sources

Grammars on partial graphs

Acta Informatica, 1976
The concept of Chomsky-grammars is generalized to graph-grammars; the "gluing" of graphs is defined by a pushout-construction. In the present paper, we allow the left-hand and right-hand side of a production to be partial graphs, i.e. graphs in which there may be edges without a source or target node.
Hans Jürgen Schneider, Hartmut Ehrig
openaire   +2 more sources

Apex graph grammars and attribute grammars

Acta Informatica, 1988
In diesem Artikel werden die ADG Graph-Grammatiken (attribute dependency graph grammars) definiert und mit anderen Klassen von Graph-Grammatiken verglichen. Die Untersuchung ist anhand der DNLC (directed node-label controlled) Graph-Grammatiken durchgeführt, die auf dem Rewriting- Mechanismus von kontextfreien Sprachen basieren.
Joost Engelfriet   +2 more
openaire   +2 more sources

Graph Grammar Formalism with Multigranularity for Spatial Graphs

Journal of Logic, Language and Information, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yufeng Liu, Fan Yang, Jian Liu
openaire   +1 more source

Interactive Graph Grammar

Grammars, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

PROBABILISTIC GRAPH GRAMMARS

Fundamenta Informaticae, 1993
In a probabilistic graph grammar, each production has a probability attached to it. This induces a probability assigned to each derivation tree, and to each derived graph. Conditions for this probability function to be a probabilistic measure are discussed. The statistical properties of the generated language are investigated.
openaire   +2 more sources

Apex graph grammars

1987
Apex graph grammars are NLC-like graph grammars with the restriction that embedding edges are established between terminal nodes only. Some basic theoretical properties of these grammars are investigated.
Joost Engelfriet   +2 more
openaire   +1 more source

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