Sigrid Ewert

According to our database, Sigrid Ewert authored at least 29 papers between 1998 and 2021.

Collaborative distances:

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

2021

Ogden's Lemma for Subclasses of Random Context Galleries.

Sigrid Ewert, Joy Idahosa

J. Autom. Lang. Comb., 2021

2020

Necessary Conditions for Subclasses of Random Context Galleries.

Sigrid Ewert, Daria Sergeevna Tkachova

J. Autom. Lang. Comb., 2020

2019

Bag context picture grammars.

Sigrid Ewert, Nuru Jingili, Liemiso Mpota, Ian D. Sanders

J. Comput. Lang., 2019

2018

Measuring Perceptual Similarity of Syntactically Generated Pictures.

Nuru Jingili, Sigrid Ewert, Ian D. Sanders

Proceedings of 8th International Conference on Simulation and Modeling Methodologies, 2018

2017

Modelling the Formation of Virtual Buying Cooperatives with Grammars of Regulated Rewriting.

Suna Bensch, Sigrid Ewert, Mpho Raborife

Proceedings of the 7th International Conference on Simulation and Modeling Methodologies, 2017

Describing Resource Allocation to Dynamically Formed Groups with Grammars.

Suna Bensch, Sigrid Ewert

Proceedings of the Simulation and Modeling Methodologies, Technologies and Applications, 2017

2015

Improving a tone labeling algorithm for Sesotho.

Mpho Raborife, Sigrid Ewert, Sabine Zerbian

Lang. Resour. Evaluation, 2015

Introducing Code Adviser: A DFA-driven Electronic Programming Tutor.

Abejide Ade-Ibijola, Sigrid Ewert, Ian Douglas Sanders

Proceedings of the Implementation and Application of Automata, 2015

2014

Perceptual Similarity of Images Generated using Tree Grammars.

Benjamin Okundaye, Sigrid Ewert, Ian D. Sanders

Proceedings of the Southern African Institute for Computer Scientist and Information Technologists Annual Conference 2014, 2014

Abstracting and Narrating Novice Programs Using Regular Expressions.

Abejide Ade-Ibijola, Sigrid Ewert, Ian D. Sanders

Proceedings of the Southern African Institute for Computer Scientist and Information Technologists Annual Conference 2014, 2014

2013

Necessary conditions for subclasses of random context languages.

Sigrid Ewert, Andries P. J. van der Walt

Theor. Comput. Sci., 2013

2012

Empirical measurements on a Sesotho tone labeling algorithm.

Mpho Raborife, Sabine Zerbian, Sigrid Ewert

Proceedings of the Third Workshop on Spoken Language Technologies for Under-resourced Languages, 2012

Generalized Random Context Picture Grammars: The State of the Art.

Sigrid Ewert, Max Rabkin

Proceedings of the Languages Alive, 2012

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

2007

Table-Driven Context-Free Picture Grammars.

Charita Bhika, Sigrid Ewert, Ryan Schwartz, Mutahi Waruhiu

Int. J. Found. Comput. Sci., 2007

2006

Translating mutually recursive function systems into generalized random context picture grammars.

H. Kruger, Sigrid Ewert

South Afr. Comput. J., 2006

A note on the generative capacity of random context.

Bradley Atcheson, Sigrid Ewert, Dylan A. Shell

South Afr. Comput. J., 2006

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

2004

GRIFFIN : an automated grcpg and IFS processing tool.

Nicole Boden, Bradley Atcheson, Sigrid Ewert

South Afr. Comput. J., 2004

2003

A property of random context picture grammars.

Andries P. J. van der Walt, Sigrid Ewert

Theor. Comput. Sci., 2003

Computing Raster Images from Grid Picture Grammars.

Frank Drewes, Sigrid Ewert, Renate Klempien-Hinrichs, Hans-Jörg Kreowski

J. Autom. Lang. Comb., 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

2001

Processing context-sensing picture grammars on a network.

Sigrid Ewert, T. Wessels

South Afr. Comput. J., 2001

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