RABIT: Jurnal Teknologi dan Sistem Informasi Univrab
Vol 11 No 2 (2026): Juli

KLASIFIKASI CYBERBULLYING PADA TEKS MEDIA SOSIAL BERBAHASA INDONESIA MENGGUNAKAN MODEL BIDIRECTIONAL LSTM

Finuri Zamzahariro (Universitas Teknokrat Indonesia)
Jafar Fakhrurozi (Universitas Teknokrat Indonesia)



Article Info

Publish Date
10 Jul 2026

Abstract

This study aims to classify cyberbullying text on Indonesian social media using an enhanced Bidirectional Long Short-Term Memory (BiLSTM) model integrated with 300-dimensional FastText pre-trained embeddings. The key challenges addressed include the high prevalence of informal language, slang, abbreviations, and writing variations that complicate automatic text analysis, as well as the semantic limitations of random embeddings. The proposed method comprises a preprocessing pipeline including text cleaning, slang normalization with toxic word preservation, tokenization, and padding, followed by a BiLSTM model built using the Functional API with dual pooling (GlobalMaxPooling + GlobalAveragePooling), L2 regularization, SpatialDropout1D, BatchNormalization, and class weight balancing. The dataset consists of 2,109 Indonesian comments collected from TikTok and Instagram, with a nearly balanced class distribution (1,058 Non-CB and 1,051 CB). Experimental results demonstrate that the proposed model achieves improved performance over the baseline, with a significant reduction in the overfitting gap between training and testing accuracy. This study demonstrates that combining FastText pre-trained embeddings with an optimized BiLSTM architecture is an effective and resource-efficient approach for Indonesian cyberbullying text classification.

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Journal Info

Abbrev

rabit

Publisher

Subject

Computer Science & IT Engineering

Description

This journal is called RABIT, where the name comes from two words namely, RAB which means Abdurrab University and IT which means information technology, it can be interpreted as a journal of this journal Journal of Informatics Engineering Study Program Pekanbaru Abdurrab University. This RABIT ...