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Ramadhani, Rima Dias
Institut Teknologi Telkom Purwokerto
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Grey Wolf Optimizer-Based Feature Selection for Naive Bayes Lung Cancer Risk Classification Ilhanatus Saadah; Mohd Izham; Safuan Safuan; Rima Dias Ramadhani; Muhamad Arifpin Mansor
Journal of Intelligent Computing & Health Informatics Vol 7, No 2 (2026): September
Publisher : Universitas Muhammadiyah Semarang Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jichi.v7i2.22740

Abstract

Lung cancer risk classification is an important task in health informatics because early identification can support further clinical assessment and risk management. Machine learning can process patient risk factors and symptoms, but classification performance can be affected by irrelevant or less informative input features. This study addresses this problem by applying the GreyWolf Optimizer(GWO)asafeature-selectionmethodforNaiveBayesclassification of three lung cancer risk levels: Low, Medium, andHigh. Thedatasetcontains 1,000 patient records with 25 attributes related to lung cancer risk factors and symptoms. The proposed procedure includes data preprocessing, an 80:20 training-testing split, GWO-based feature selection, and Naive Bayes classification. Each candidate solution in GWO represents a feature subset, while Naive Bayes classification accuracy is used to evaluate the candidate solutions. The baseline Naive Bayes model achieved an accuracy of 89.50%. GWO reduced the number of input attributes from 25 to 10, and the resulting Naive Bayes model achieved an accuracy of 96.50%. Precision, recall, and F1-score also increased across the Low, Medium, and High risk classes after feature selection. These results show that GWO-based feature selection reduced the input dimensionality while producing higher classification metrics than the baseline Naive Bayes model under the evaluated experimental setting.
Co-Authors Adhi Purwono Afandi Nur Aziz Thohari Afandi Nur Aziz Thohari Afandi Nur Aziz Thohari Afandi Nur Aziz Thohari, Afandi Nur Aziz Agi Prasetiadi AGUS PRIYANTO Agus Priyanto Ahmad Ilham Akhmad Fathurrohman Alfin Hikmaturokhman Amalia Beladinna Arifa Annisa Nugraheni Anto, Novri Apri Junaidi Ardianne Luthfika Fairuz Arief Rais Bahtiar Ariesta Dwi Saputri Atika Ratna Dewi Aulia, Avina Ulfa Aulia, Avina Ulfa Auliya Burhanuddin Ayu Silvia Bintang Abillah Safna Bunga Laelatul Muna Condro Kartiko Danny Kurnianto Dasril Aldo Dhendra Marutho Dian Nurdiansyah Didi Supriyadi Edelin Gultom Faiq Madani Ilhanatus Saadah Janur Syah Putra Lukman Assaffat Martiyaningsih, Dwi Puspa Merlinda Wibowo Moh Lutfi Fadilah Mohd Izham Muhamad Arifpin Mansor Muhammad Fajar Sidiq Muhammad Munsarif Muhammad Sam’an Muna, Bunga Laelatul Nashrulloh Khoiruzzaman Nia Annisa Ferani Tanjung Nora Trivetisia Novanda Alim Setya Nugraha Novri Anto Pradana Ananda Raharja Rahmatika Diana Firdaus Rehan Nur Setiawan Rifki Adhitama Safuan Safuan Satya Helfi Agustianto Sena Wijaya Sena Wijayanto Siti Khomsah, Siti Teguh Rijanandi Tri Ginanjar Laksana Tri Ginanjar Laksana Wahyu Adi Prabowo Wendy Sarasjati Yasinta Swasti Mahargyani Yohani Setiya Rafika Nur