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Academic literature on the topic 'Grammar based approach'

Author: Grafiati
Published: 9 March 2023
Last updated: 11 June 2025

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Journal articles on the topic "Grammar based approach"

1

AKUMBU, Pius. "Reflections on a community-based approach to writing grammars of endangered African languages." STUDIES IN AFRICAN LANGUAGES AND CULTURES, no. 54 (December 10, 2020): 71–96. http://dx.doi.org/10.32690/salc54.3.

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Increasingly, there have been proposals for grammar writers to take into account the realities and needs of the community in order to produce grammars that can serve the interests of the native speakers (e.g. Kadanya 2006, Rehg 2014). Obviously, a grammar of an endangered language should, among other things, lead to the maintenance and/or revitalization of the language. However, grammars that are comprehensive and clear (Noonan 2007, Payne 2014, Rice 2006), and yet focus on and meet the needs of the target community, are still rare. This paper provides a reflection, from a community linguist’s perspective, on how a community-based grammar could be conceived and written in the African context. It is based on an exploration of the existing grammars written the by native and non-native speakers, as well as on the feedback from the native speakers. The paper points out some practical challenges involved (e.g. with data collection, and actual use of the grammars), and upholds that a grammar that is based on community mobilization, sensitization, and training requires a greater involvement and follow-up by the grammar writer, especially after publication.
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Hoisl, Frank, and Kristina Shea. "An interactive, visual approach to developing and applying parametric three-dimensional spatial grammars." Artificial Intelligence for Engineering Design, Analysis and Manufacturing 25, no. 4 (2011): 333–56. http://dx.doi.org/10.1017/s0890060411000205.

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AbstractSpatial grammars are rule based, generative systems for the specification of formal languages. Set and shape grammar formulations of spatial grammars enable the definition of spatial design languages and the creation of alternative designs. Since the introduction of the underlying formalism, they have been successfully applied to different domains including visual arts, architecture, and engineering. Although many spatial grammars exist on paper, only a few, limited spatial grammar systems have been computationally implemented to date; this is especially true for three-dimensional (3-D) systems. Most spatial grammars are hard-coded, that is, once implemented, the vocabulary and rules cannot be changed without reprogramming. This article presents a new approach and prototype implementation for a 3-D spatial grammar interpreter that enables interactive, visual development and application of grammar rules. The method is based on a set grammar that uses a set of parameterized primitives and includes the definition of nonparametric and parametric rules, as well as their automatic application. A method for the automatic matching of the left hand side of a rule in a current working shape, including defining parametric relations, is outlined. A prototype implementation is presented and used to illustrate the approach through three examples: the “kindergarten grammar,” vehicle wheel rims, and cylinder cooling fins. This approach puts the creation and use of 3-D spatial grammars on a more general level and supports designers with facilitated definition and application of their own rules in a familiar computer-aided design environment without requiring programming.
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Repel, Dusan, and Ingo Stengel. "Grammar-based transformations: attack and defence." Information Management & Computer Security 22, no. 2 (2014): 141–54. http://dx.doi.org/10.1108/imcs-09-2013-0071.

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Purpose – This research aims to propose an attack that de-obfuscates codes by exploiting the properties of context-free grammars since it is important to understand the strength of obfuscation provided by context-free grammar-based obfuscators. In addition, the possibility of automatically generated transformations is explored. Design/methodology/approach – As part of our empirical investigation, a development environment for obfuscating transformations is built. The tool is used to simulate a context-free obfuscator and to devise ways of reversing such transformations. Furthermore, a theoretical investigation of subset grammars and subset languages is carried out. Findings – It is concluded that context-free grammar-based obfuscators provide limited levels of protection. Nevertheless, their application is appropriate when combined with other obfuscating techniques. Research limitations/implications – The algorithms behave as expected on a limited number of test samples. Further work is required to increase their practicality and to establish their average reliability. Originality/value – This research shows how a frequency analysis attack can threaten the security of code scrambled by context-free grammar-based obfuscators.
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Strobbe, Tiemen, Sara Eloy, Pieter Pauwels, Ruben Verstraeten, Ronald De Meyer, and Jan Van Campenhout. "A graph-theoretic implementation of the Rabo-de-Bacalhau transformation grammar." Artificial Intelligence for Engineering Design, Analysis and Manufacturing 30, no. 2 (2016): 138–58. http://dx.doi.org/10.1017/s0890060416000032.

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AbstractShape grammars are rule-based formalisms for the specification of shape languages. Most of the existing shape grammars are developed on paper and have not been implemented computationally thus far. Nevertheless, the computer implementation of shape grammar is an important research question, not only to automate design analysis and generation, but also to extend the impact of shape grammars toward design practice and computer-aided design tools. In this paper, we investigate the implementation of shape grammars on a computer system, using a graph-theoretic representation. In particular, we describe and evaluate the implementation of the existing Rabo-de-Bacalhau transformation grammar. A practical step-by-step approach is presented, together with a discussion of important findings noticed during the implementation and evaluation. The proposed approach is shown to be both feasible and valuable in several aspects: we show how the attempt to implement a grammar on a computer system leads to a deeper understanding of that grammar, and might result in the further development of the grammar; we show how the proposed approach is embedded within a commercial computer-aided design environment to make the shape grammar formalism more accessible to students and practitioners, thereby increasing the impact of grammars on design practice; and the proposed step-by-step implementation approach has shown to be feasible for the implementation of the Rabo-de-Bacalhau transformation grammar, but can also be generalized using different ontologies for the implementation.
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Fauzi, Ashar, and Kristian Adi Putra. "Reconstructing Grammar Exercises: A Systemic Functional Grammar Approach." Tadris: Jurnal Keguruan dan Ilmu Tarbiyah 7, no. 2 (2022): 397–407. http://dx.doi.org/10.24042/tadris.v7i2.14051.

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Despite the sufficient amount of language textbook analysis studies that have been conducted, little attention focused on grammar exercises analysis presented in the Indonesian junior high school English textbooks that facilitated the students to make meaning where functional grammar principles were adopted. This current study nuanced education artifacts analysis. The researchers intended to reveal to what extent the English grammar exercises present functional grammar exercises. Moreover, The study provided a practical suggestion to teachers, textbook developers, and language practitioners to revise and include the functional grammar approach in designing English grammar exercises. Anchored into critical document study, this study focused to find the representation of functional grammar exercises portrayed in an English language textbook where the mandated English language curriculum endorses genre-based and text-based language pedagogy in an Indonesian secondary school context. Two analytical tools were combined (i.e. transitivity analysis and critical discourse study) to reveal the existing English grammar exercises. The findings present a total of 88 English grammar exercises found in the textbook. However, 28 English grammar exercises indicated activities for the student to make meaning. The result provided a critical suggestion for grammar exercises revision that facilitates students to make meaning and understanding the social practices of the language. However, this study only provided a textbook analysis, further studies possibly focus on action studies where the functional grammar exercises were implemented in classroom activities.
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KRIEGER, HANS-ULRICH. "From UBGs to CFGs A practical corpus-driven approach." Natural Language Engineering 13, no. 4 (2007): 317–51. http://dx.doi.org/10.1017/s1351324906004128.

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AbstractWe present a simple and intuitive unsound corpus-driven approximation method for turning unification-based grammars, such as HPSG, CLE, or PATR-II into context-free grammars (CFGs). Our research is motivated by the idea that we can exploit (large-scale), hand-written unification grammars not only for the purpose of describing natural language and obtaining a syntactic structure (and perhaps a semantic form), but also to address several other very practical topics. Firstly, to speed up deep parsing by having a cheap recognition pre-flter (the approximated CFG). Secondly, to obtain an indirect stochastic parsing model for the unification grammar through a trained PCFG, obtained from the approximated CFG. This gives us an efficient disambiguation model for the unification-based grammar. Thirdly, to generate domain-specific subgrammars for application areas such as information extraction or question answering. And finally, to compile context-free language models which assist the acoustic model of a speech recognizer. The approximation method is unsound in that it does not generate a CFG whose language is a true superset of the language accepted by the original unification-based grammar. It is a corpus-driven method in that it relies on a corpus of parsed sentences and generates broader CFGs when given more input samples. Our open approach can be fine-tuned in different directions, allowing us to monotonically come close to the original parse trees by shifting more information into the context-free symbols. The approach has been fully implemented in JAVA.
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7

Fotos, Sandra, and Rod Ellis. "Communicating about Grammar: A Task-Based Approach." TESOL Quarterly 25, no. 4 (1991): 605. http://dx.doi.org/10.2307/3587079.

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Feili, Heshaam, and Gholamreza Ghassem-Sani. "Unsupervised grammar induction using history based approach." Computer Speech & Language 20, no. 4 (2006): 644–58. http://dx.doi.org/10.1016/j.csl.2005.11.001.

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Fang, Lanting, Luu Anh Tuan, Siu Cheung Hui, and Lenan Wu. "Syntactic based approach for grammar question retrieval." Information Processing & Management 54, no. 2 (2018): 184–202. http://dx.doi.org/10.1016/j.ipm.2017.11.004.

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Gardent, Claire, and Laura Perez-Beltrachini. "A Statistical, Grammar-Based Approach to Microplanning." Computational Linguistics 43, no. 1 (2017): 1–30. http://dx.doi.org/10.1162/coli_a_00273.

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Although there has been much work in recent years on data-driven natural language generation, little attention has been paid to the fine-grained interactions that arise during microplanning between aggregation, surface realization, and sentence segmentation. In this article, we propose a hybrid symbolic/statistical approach to jointly model the constraints regulating these interactions. Our approach integrates a small handwritten grammar, a statistical hypertagger, and a surface realization algorithm. It is applied to the verbalization of knowledge base queries and tested on 13 knowledge bases to demonstrate domain independence. We evaluate our approach in several ways. A quantitative analysis shows that the hybrid approach outperforms a purely symbolic approach in terms of both speed and coverage. Results from a human study indicate that users find the output of this hybrid statistic/symbolic system more fluent than both a template-based and a purely symbolic grammar-based approach. Finally, we illustrate by means of examples that our approach can account for various factors impacting aggregation, sentence segmentation, and surface realization.
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