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Open AccessFeature PaperArticle

Exploring West African Folk Narrative Texts Using Machine Learning

1
Computer Science Department, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
2
Bolesian B.V., Hooghiemstraplein 85, 3514 AX Utrecht, The Netherlands
*
Authors to whom correspondence should be addressed.
Information 2020, 11(5), 236; https://doi.org/10.3390/info11050236
Received: 28 February 2020 / Revised: 22 April 2020 / Accepted: 23 April 2020 / Published: 26 April 2020
(This article belongs to the Special Issue Digital Humanities)
This paper examines how machine learning (ML) and natural language processing (NLP) can be used to identify, analyze, and generate West African folk tales. Two corpora of West African and Western European folk tales are compiled and used in three experiments on cross-cultural folk tale analysis. In the text generation experiment, two types of deep learning text generators are built and trained on the West African corpus. We show that although the texts range between semantic and syntactic coherence, each of them contains West African features. The second experiment further examines the distinction between the West African and Western European folk tales by comparing the performance of an LSTM (acc. 0.79) with a BoW classifier (acc. 0.93), indicating that the two corpora can be clearly distinguished in terms of vocabulary. An interactive t-SNE visualization of a hybrid classifier (acc. 0.85) highlights the culture-specific words for both. The third experiment describes an ML analysis of narrative structures. Classifiers trained on parts of folk tales according to the three-act structure are quite capable of distinguishing these parts (acc. 0.78). Common n-grams extracted from these parts not only underline cross-cultural distinctions in narrative structures, but also show the overlap between verbal and written West African narratives. View Full-Text
Keywords: deep learning; text generation; text classification; storytelling; West Africa; folk tales deep learning; text generation; text classification; storytelling; West Africa; folk tales
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Lô, G.; de Boer, V.; van Aart, C.J. Exploring West African Folk Narrative Texts Using Machine Learning. Information 2020, 11, 236.

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