Hierarchical multi-label news article classification with distributed semantic model based features

(1) * Ivana Clairine Irsan Mail (Institut Teknologi Bandung, Indonesia)
(2) Masayu Leylia Khodra Mail (Institut Teknologi Bandung, Indonesia)
*corresponding author

Abstract


Automatic news categorization is essential to automatically handle the classification of multi-label news articles in online portal. This research employs some potential methods to improve performance of hierarchical multi-label classifier for Indonesian news article. First potential method is using Convolutional Neural Network (CNN) to build the top level classifier. The second method could improve the classification performance by calculating the average of the word vectors obtained from distributed semantic model. The third method combines lexical and semantic method to extract documents features, which multiplied word term frequency (lexical) with word vector average (semantic). Model build using Calibrated Label Ranking as multi-label classification method, and trained using Naïve Bayes algorithm has the best F1-measure of 0.7531. Multiplication of word term frequency and the average of word vectors were also used to build this classifiers. This configuration improved multi-label classification performance by 4.25%, compared to the baseline. The distributed semantic model that gave best performance in this experiment obtained from 300-dimension word2vec of Wikipedia’s articles. The multi-label classification model performance is also influenced by news’ released date. The difference period between training and testing data would also decrease models’ performance.

Keywords


Multi-label classification; Hierarchical multi-label classification; CNN; Word embedding; News

   

DOI

https://doi.org/10.26555/ijain.v5i1.168
      

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