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Benchmarking performance of document level classification and topic modeling


Bhatti, Muhammad Shahid and Ullah, Azmat and Latip, Rohaya and Sohail, Abid and Riaz, Anum and Hassan, Rohail (2021) Benchmarking performance of document level classification and topic modeling. CMC-Computers Materials & Continua, 71 (1). pp. 1-15. ISSN Tech Science Press


Text classification of low resource language is always a trivial and challenging problem. This paper discusses the process of Urdu news classification and Urdu documents similarity. Urdu is one of the most famous spoken languages in Asia. The implementation of computational methodologies for text classification has increased over time. However, Urdu language has not much experimented with research, it does not have readily available datasets, which turn out to be the primary reason behind limited research and applying the latest methodologies to the Urdu. To overcome these obstacles, a medium-sized dataset having six categories is collected from authentic Pakistani news sources. Urdu is a rich but complex language. Text processing can be challenging for Urdu due to its complex features as compared to other languages. Term frequency-inverse document frequency (TFIDF) based term weighting scheme for extracting features, chi-2 for selecting essential features, and Linear discriminant analysis (LDA) for dimensionality reduction have been used. TFIDF matrix and cosine similarity measure have been used to identify similar documents in a collection and find the semantic meaning of words in a document FastText model has been applied. The training-test split evaluation methodology is used for this experimentation, which includes 70% for training data and 30% for testing data. State-of-the-art machine learning and deep dense neural network approaches for Urdu news classification have been used. Finally, we trained Multinomial Naïve Bayes, XGBoost, Bagging, and Deep dense neural network. Bagging and deep dense neural network outperformed the other algorithms. The experimental results show that deep dense achieves 92.0% mean f1 score, and Bagging 95.0% f1 score.

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Official URL or Download Paper: https://www.techscience.com/cmc/v71n1/45375

Additional Metadata

Item Type: Article
Divisions: Faculty of Computer Science and Information Technology
DOI Number: https://doi.org/10.32604/cmc.2022.020083
Publisher: 1546-2218; ESSN: 1546-2226
Keywords: Deep neural network; Machine learning; Natural language processing; TFIDF; Sparse matrix; Cosine similarity; Classification; Linear discriminant analysis; Gradient boosting
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 31 Jan 2023 03:13
Last Modified: 31 Jan 2023 03:13
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.32604/cmc.2022.020083
URI: http://psasir.upm.edu.my/id/eprint/96189
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