Feature Extraction in Hierarchical Multi-Label Classification for Dangerous Speech Identification on Twitter Texts

Diana Purwitasari*, Dini Adni Navastara, Yulian Findawati, Kresna Adhi Pramana, Agus Budi Raharjo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Dangerous speech is a strong hate speech that causes negative impacts, such as violence, crime, social pressure, trauma, and despair, and can lead to conflicts between groups. Raw data of Twitter texts need the necessary preprocess to obtain the proper training datasets for hate speech or even dangerous one. One reason is how to express hate speech related to mentions or hashtags. Because of the variants of context messages in raw Twitter posts which could be hate speech or not, the problem here is hierarchical and multi-label classification with three label types of hate speech status, issues, and dangerous levels. The issues in this work are about religion, ethnicity, and others. After handling preprocess, the word embedding includes data under-sampling because the dataset is not balanced. Additional stop-word dictionaries to overcome language-related vocabularies are also incorporated. To observe the preprocess effects in the classification problem, some methods of machine learning and deep learning, such as SVM, Bi-LSTM, and BERT are explored. Then we examined after hyper-parameter settings with performance indicators of subset accuracy and Hamming lost for imbalanced, in addition to F1 scores of micro and macro averages.

Original languageEnglish
Title of host publicationICCoSITE 2023 - International Conference on Computer Science, Information Technology and Engineering
Subtitle of host publicationDigital Transformation Strategy in Facing the VUCA and TUNA Era
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages78-83
Number of pages6
ISBN (Electronic)9798350320954
DOIs
Publication statusPublished - 2023
Event2023 International Conference on Computer Science, Information Technology and Engineering, ICCoSITE 2023 - Jakarta, Indonesia
Duration: 16 Feb 2023 → …

Publication series

NameICCoSITE 2023 - International Conference on Computer Science, Information Technology and Engineering: Digital Transformation Strategy in Facing the VUCA and TUNA Era

Conference

Conference2023 International Conference on Computer Science, Information Technology and Engineering, ICCoSITE 2023
Country/TerritoryIndonesia
CityJakarta
Period16/02/23 → …

Keywords

  • Twitter posts
  • dangerous speech
  • deep learning
  • feature extraction
  • hate speech
  • multi-label classification

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