Disaster Tweet Classification Based On Geospatial Data Using the BERT-MLP Method

IQBAL MAULANA

Informasi Umum

Kode

21.04.1202

Klasifikasi

006.31 - Machine Learning

Jenis

Karya Ilmiah - Skripsi (S1) - Reference

Subjek

Machine - Learning

Dilihat

256 kali

Informasi Lainnya

Abstraksi

As a popular social media in Indonesia, Twitter has a variety of popular topics making these topics trending, including the topic of natural disasters that have occurred in Indonesia. The DKI Jakarta flood disaster in early 2020 made a big scene on trending twitter topics. This study aims to classify these tweets into ”flooded” and ”not flooded” predictions with the tweets and geospatial features. The model proposed for classifying is BERT-MLP. Bidirectional Encoder from Transformers (BERT) is used in the pretrained model to classify these tweets and Multi Layer Perceptron (MLP) is used to classify geospatial features. The scenario designed for the model focuses on the preprocessing of tweets as follows without stopword removal, without stemming, with both and without both. Once classified, the tweet will be visualized into a twodimensional interactive map. The best scenario results have an accuracy of 82% in scenarios without stemming and with stopword removal. This is due to the stemming process eliminates some of the features in tweets around 6%. This study also shows the relationship between the influence of hatespeech’s tweet on the ”not flooded” class with an orientation of 65% of the total data. However, defining manual stopwords can have an effect because stopword removal will not delete words that still have context related features to the topic