Andries P. J. van der Walt

According to our database, Andries P. J. van der Walt authored at least 13 papers between 1971 and 2013.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2013

Necessary conditions for subclasses of random context languages.

Sigrid Ewert, Andries P. J. van der Walt

Theor. Comput. Sci., 2013

2008

Bag Context Tree Grammars.

Frank Drewes, Christine du Toit, Sigrid Ewert, Brink van der Merwe, Andries P. J. van der Walt

Fundam. Informaticae, 2008

2005

Random context tree grammars and tree transducers.

Frank Drewes, Christine du Toit, Sigrid Ewert, Johanna Högberg, Brink van der Merwe, Andries P. J. van der Walt

South Afr. Comput. J., 2005

2003

A property of random context picture grammars.

Andries P. J. van der Walt, Sigrid Ewert

Theor. Comput. Sci., 2003

The Power and Limitations of Random Context.

Sigrid Ewert, Andries P. J. van der Walt

Proceedings of the Grammars and Automata for String Processing: From Mathematics and Computer Science to Biology, 2003

2002

A pumping lemma for random permitting context languages.

Sigrid Ewert, Andries P. J. van der Walt

Theor. Comput. Sci., 2002

2000

A shrinking lemma for random forbidding context languages.

Andries P. J. van der Walt, Sigrid Ewert

Theor. Comput. Sci., 2000

1999

Shrink Indecomposable Fractals.

Sigrid Ewert, Andries P. J. van der Walt

J. Univers. Comput. Sci., 1999

Generating Pictures Using Random Permitting Context.

Sigrid Ewert, Andries P. J. van der Walt

Int. J. Pattern Recognit. Artif. Intell., 1999

A Hierarchy Result for Random Forbidding Context Picture Grammars.

Sigrid Ewert, Andries P. J. van der Walt

Int. J. Pattern Recognit. Artif. Intell., 1999

1998

Generating Pictures Using Random Forbidding Context.

Sigrid Ewert, Andries P. J. van der Walt

Int. J. Pattern Recognit. Artif. Intell., 1998

1976

Locally Linear Families of Languages

Andries P. J. van der Walt

Inf. Control., September, 1976

1971

Random Context Languages.

Andries P. J. van der Walt

Proceedings of the Information Processing, Proceedings of IFIP Congress 1971, Volume 1, 1971