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• W3127274523 startingPage "114652" @default.
• W3127274523 abstract "Humans must easily handle the vast amounts of data being generated by the revolution of information technology. Thus, Automatic Text summarization has been applied to various domains in order to find the most relevant information and make critical decisions quickly. In the context of Arabic, text summarization techniques suffer from several problems. First, most existing methods do not consider the context or domain to which the document belongs. Second, the majority of the existing approaches are based on the traditional bag-of-words representation, which involves high dimensional and sparse data, and makes it difficult to capture relevant information. Third, research in Arabic Text summarization is fairly small and only recently compared to that on Anglo-Saxon and other languages due to the shortage of Arabic corpora, resources, and automatic processing tools. In this paper, we try to overcome these limitations by proposing a new approach using documents clustering, topic modeling, and unsupervised neural networks in order to build an efficient document representation model. First, a new document clustering technique using Extreme learning machine is performed on large text collection. Second, topic modeling is applied to documents collection in order to identify topics present in each cluster. Third, each document is represented in a topic space by a matrix where rows represent the document sentences and columns represent the cluster topics. The generated matrix is then trained using several unsupervised neural networks and ensemble learning algorithms in order to build an abstract representation of the document in the concept space. Important sentences are ranked and extracted according to a graph model with a redundancy elimination component. The proposed approach is evaluated on Essex Arabic Summaries Corpus and compared against other Arabic text summarization approaches using ROUGE measure. Experimental results showed that the models trained on topic representation learn better representations and improve significantly the summarization performance. In particular, ensemble learning models demonstrated an important improvement on Rouge recall and promising results on F-measure." @default.
• W3127274523 created "2021-02-15" @default.
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• W3127274523 date "2021-06-01" @default.
• W3127274523 modified "2023-10-07" @default.
• W3127274523 title "Unsupervised neural networks for automatic Arabic text summarization using document clustering and topic modeling" @default.
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• W3127274523 doi "https://doi.org/10.1016/j.eswa.2021.114652" @default.
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