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All Journal Jurnal Informatika Proceedings of KNASTIK Techno.Com: Jurnal Teknologi Informasi Jurnal Buana Informatika Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Teknik dan Ilmu Komputer Jurnal Edukasi dan Penelitian Informatika (JEPIN) Journal of Information Systems Engineering and Business Intelligence Jurnal Teknologi dan Sistem Komputer Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Pendidikan (Teori dan Praktik) Informatika Pertanian CogITo Smart Journal JUTEI (Jurnal Terapan Teknologi Informasi) Jurnal ULTIMA InfoSys Jurnal ULTIMATICS Share : Journal of Service Learning Jurnal Informatika Jurnal Informatika dan Sistem Informasi Patria : Jurnal Pengabdian Kepada Masyarakat IAIC Transactions on Sustainable Digital Innovation (ITSDI) JUSTIN (Jurnal Sistem dan Teknologi Informasi) Prosiding Seminar Nasional Program Pengabdian Masyarakat Abdimas Altruis: Jurnal Pengabdian Kepada Masyarakat Jurnal Atma Inovasia JP (Jurnal Pendidikan) : Teori dan Praktik Jurnal Pengabdian Teknik dan Ilmu Komputer (PETIK) GIAT: Teknologi untuk Masyarakat SERVIRISMA: Jurnal Pengabdian kepada Masyarakat International Journal of Information Technology and Computer Science Applications (IJITCSA) JuTISI (Jurnal Teknik Informatika dan Sistem Informasi)
Antonius Rachmat Chrismanto
Program Studi Informatika Fakultas Teknologi Informasi Universitas Kristen Duta Wacana Yogyakarta
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Other

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Journal : Jurnal ULTIMATICS

 1 
Implementasi Rocchio’s Classification dalam Mengkategorikan Renungan Harian Kristen Elisabeth Adelia Widjojo; Antonius Rachmat C; R. Gunawan Santosa
Ultimatics : Jurnal Teknik Informatika Vol 6 No 1 (2014): Ultimatics: Jurnal Ilmu Teknik Informatika
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (821.382 KB) | DOI: 10.31937/ti.v6i1.325

Abstract

Nowadays, many Christian institutions are using digital media to save spiritual pictures, musics or videos, even daily devotional articles which is usually printed monthly. Since many daily devotionals are published in the Internet, it will be difficult to find a daily devotional articles with a spesific topic/category. To make it easier, in this research we use Rocchio’s classification, which use TF-IDF weighting for classification and centroid calculation in every category to classify daily devotional articles. Every testing article will be matched with the centroid using cosine similariy. As a result, the system accuracy is 73,33% using 20% of feature selection. The highest precision goes to Wisdom category which score is 1 for precision by using 100% feature selection. While the highest recall goes to Motivaton category which score is 1 by using 100% feature selection.. Index Terms—classification, categorization, daily devotional article, Rocchio’s classification, centroid, similarity
Deteksi Komentar Spam Bahasa Indonesia Pada Instagram Menggunakan Naive Bayes Antonius Rachmat C; Yuan Lukito
Ultimatics : Jurnal Teknik Informatika Vol 9 No 1 (2017): Ultimatics: Jurnal Ilmu Teknik Informatika
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (899.718 KB) | DOI: 10.31937/ti.v9i1.564

Abstract

Instagram is the most famous pictures and videos media sharing based on the web & mobile application. Instagram users can have picture posts that can be commented by their followers. Indonesian public figures such as actors, actresses, musicians use Instagram to promote their activities to their followers. Unfortunately, there are a lot of spam comments in Instagram that need special attention and have to be removed. This research grabs Instagram comments and builds the dataset from Indonesian public figures who have more than one million followers. By using preprocessing (tokenization, stop words removal, and stemming), TF-IDF weighting, and supervised learning, Naive Bayes method is used to detect spam comments in Indonesian. Naive Bayes produces 74,31% accuracy rate on unbalanced datasets and 77,25% accuracy rate on balanced datasets. This result shows that Naïve Bayes can be used to build an automatic Indonesian spam comments detector on Instagram with high accuracy rate. The novelty of this research is that Naive Bayes can be used to detect spam comment on our Indonesian Instagram comments dataset. Index Terms—Instagram, Naive Bayes, Indonesian spam comments, spam comments detection.
Co-Authors Abednego Kristiawan Takaredase Abednego Kristiawan Takaredase, Abednego Kristiawan Aditya Kurniawan Effendi Aditya Wikan Mahastama Ahmad Ashari Aloysius Adhyatma Herfangsyah Andronicus Riyono Anny Kartika Sari Ardhy Chandra Kurniawan Argo Wibowo Argo Wibowo Arnan Dwika Diasmara Astuti, Laksmita Widya Balisa, Delfia Bhernardin Erryco Gagah Pattriskak Blasius Neri Puspika Budi Susanto Budi Susanto Cahyanto, Ruddy Damayanti, Elok Daniel Hutama Putra Danny Sebastian Dea Alverina Delfia Balisa Denna Prestianti Desyandri Desyandri Diasmara, Arnan Dwika Elisabeth Adelia Widjojo Erick Kurniawan Erick Kurniawan Erinda Resha Astanti Gabriella Amelia Prasetyo Gani Indriyanta Gilang Purnajati, Oscar Gloria Virginia Gregorius Titis Indrajaya Gregorius Titis Indrajaya, Gregorius Titis Griffin Theresia R. Halim Budi Santoso Handi Hermawan Hendy Yudhitya Susetya Herlina Lina Hermawan, Handi Hizkia Juan Suryanto Hizkia Juan Suryanto, Hizkia Juan Ignatia Dhian E.K.R. Ignatia Dhian E.K.R., Ignatia Dhian Joko Purwadi Joko Purwadi Jong Jek Siang Jong Jek Siang Junius Karel Tampubolon Junius Karel Tampubolon Karmela Saturnina Mega Wea Karmela Saturnina Mega Wea Katon Wijana Katon Wijana Katon Wijana Katon Wijana Kristanto G, Steven Kristian Adi Nugraha Kristian Adi Nugraha Kurniani, Kezia Trifena Lemmuela Alvita Kurniawati, Lemmuela Alvita Lucia Dwi Krisnawati Lukas Chrisantyo Lukas Chrisantyo Lukas Chrisantyo Matahari Bhakti Nendya Matahari Bhakti Nendya, Matahari Bhakti Meldy Saimon Pinontoan Mikhael Meier Nathaniel Clarence Haryanto Nugroho Agus Haryono Pinontoan, Meldy Saimon Raden Gunawan Santosa Rama Novta Miraldi Ratih Alfionita Restyandito Rini, Maria Nila Anggia Rosa Delima Ruddy Cahyanto Sebastian, Danny Sefia Chandra Selvy Welianto Sudarma, Wayan Edi Sudiarto Raharjo, Willy Susilo, Anton Sylvia Putri Gunawan Tanujaya, Yoel Togatorop, Joiner Tennye Ariel Verianto, Eko Voni Yuniati Wahju Satria Wibowo Waworuntu, Ghea Natasya Pingkan Wayan Edi Sudarma Widi Tamtama, Gabriel Indra Wilbert Wilbert Willy Ristanto Willy Sudiarto Willy Sudiarto Raharjo Willy Sudiarto Raharjo Willy Sudiarto Raharjo Yanuar Budi Prasetyo Yohanes Suyanto Yuan Lukito Yuan Lukito Yunita Sari