Article Per Year (5 Year)
p-Index From 2020 - 2025
5.86
P-Index
This Author published in this journals
All Journal Proceedings Konferensi Nasional Sistem dan Informatika (KNS&I) Jurnal Ilmiah Pendidikan Pancasila dan Kewarganegaraan International Journal of Artificial Intelligence Research JURNAL MEDIA INFORMATIKA BUDIDARMA Jurnal Ilmiah Matrik METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Jurnal Basicedu WIDYA LAKSANA CSRID (Computer Science Research and Its Development Journal) Indonesian Journal of Community Services Management Studies and Entrepreneurship Journal (MSEJ) IT (INFORMATIC TECHNIQUE) JOURNAL JOURNAL OF INFORMATION SYSTEM MANAGEMENT (JOISM) Jurnal Ilmiah Intech : Information Technology Journal of UMUS Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Teknik Informatika (JUTIF) Journal of Applied Data Sciences Jurnal Ilmiah Wahana Pendidikan Journal Automation Computer Information System (JACIS) Abdiformatika: Jurnal Pengabdian Masyarakat Informatika Publicio : Jurnal Ilmiah Politik, Kebijakan dan Sosial Journal Of Human And Education (JAHE) JAB (Jurnal Akuntansi dan Bisnis) The Indonesian Journal of Computer Science Research Jurnal Basicedu Tsaqofah: Jurnal Penelitian Guru Indonesia JAMU : Jurnal Abdi Masyarakat UMUS Asas wa Tandhim: Jurnal Hukum, Pendidikan, dan Sosial Keagamaan Jurnal Kedokteran Hewan Riwayat: Educational Journal of History and Humanities Komunita: Jurnal Pengabdian dan Pemberdayaan Masyarakat West Science Social and Humanities Studies Jurnal Pengabdian Kesehatan Masyarakat Mulawarman Science Information System and Technology Kalpataru Berkala Arkeologi Intechno Journal : Information Technology Journal Journal of Humanities Education Management Accounting and Transportation
Hartatik
Fakultas Ilmu Komputer, Universitas Amikom Yogyakarta
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 45 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search
Journal : Jurnal Teknik Informatika (JUTIF)

 1 
A Hybrid Approach for Recommender Systems Based on Alternating Least Squares and CatBoost Yusfida A'la, Fiddin; Hartatik, Hartatik; Riasti, Berliana Kusuma
Jurnal Teknik Informatika (Jutif) Vol. 6 No. 4 (2025): JUTIF Volume 6, Number 4, Agustus 2025
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2025.6.4.5002

Abstract

This study aims to improve the accuracy of movie rating predictions by applying and combining collaborative filtering and machine learning techniques in a hybrid recommender system. The research utilizes the MovieLens dataset to implement two distinct approaches: the Alternating Least Squares (ALS) matrix factorization model and the CatBoost gradient boosting model. The ALS model is trained to capture latent user–item interactions, while CatBoost leverages nonlinear relationships using user and item features. A simple hybrid strategy averages the predictions from both models to evaluate potential performance gains. Experimental results show that the hybrid approach achieves lower error metrics compared to either model individually, with Root Mean Squared Error (RMSE) and Mean Absolute Error (MAE) values of 0.828 and 0.666, respectively. This demonstrates that combining latent factor models with tree-based learning can effectively reduce prediction errors by exploiting complementary strengths. The novelty of this research lies in its efficient yet effective hybridization strategy that improves recommendation quality without complex ensembling techniques. The findings suggest that even lightweight model fusion can significantly enhance predictive accuracy in recommender systems and may be adapted for other domains where combining linear and nonlinear modeling is beneficial. This research contributes to the field of Informatics and Computer Science by demonstrating that a lightweight hybridization of latent factor models and tree-based learning can significantly improve recommender system accuracy while offering practical implications for real-world digital applications.
Co-Authors Abdillah, Fardan Abdul Aziz Abdullah Abdullah Al Abdul Rohim Ananda, Fadhilah Dwi Andri Syafrianto Andy Supriyadi Anggit Dwi Hartanto Anggit Dwi Hartanto Anggit Dwi Hartanto, Anggit Dwi Anggorowati, Luki Sri Anwar, Ahmad Ari Susanti Arifa Satria Dwi Cahya Audita Nuvriasari Berliana Kusuma Riasti Berliana Kusuma Riasti Budi Warsito Daneswara, Gaury V. Destanul Aulia, Destanul Dhaneswara, Gauri Vidya Dhiana Puspitawati Dyah Triwahyuningtyas Ema Utami Fiddin Yusfida Firdaus, Nurul Harliana Harliana Harry Octavianus Sofian, Harry Octavianus Hastari Utama Hilman Haroen I Gusti Ngurah Agung Dewantara Putra Indra Permana, Indra Indrawan, Ilham Dwi Iskandar, Haris Surya Istiana, Dina Iswahyudi, Didik Jamilah Jamilah Kanoena, Melcior Paitin Karyanantio, Agus Kencana, Adi Kresna Khairullah, Irfan Khalil Krisnawati Krisnawati Kurniawan, Aas Andri Kusnawi Kusnawi Lucky Adhikrisna Wirasakti Mar'ati, Fudji Sri Mazidah, Umi Mendrofa, Syah Abadi Mitra Slipranata Muhammad Huzain Munawwaroh, Fabroy Fauziyatul Nugroho Nur Susanto, Nugroho Nur Nuril Huda Nury Yuniasih, Nury Pattimura, Yudha Bagas Purnamasari, Hetty Purwandari, Elce R. Rizal Isnanto Rahayu Lubis Rahayu, Supriati Hardi Ramadhani, Hashifah Nindi Ramadhani, Zanuarestu Rasyid, Muhammad Rusdi Rony Permadi Rosyid Rosyid Safira, Livia Sandi, Novra A. Seplyana, Desy Setiadi F., A. Farhan Shintya Wulan Safitri Sri Devi Nurhayati Subakti, Agung Subari Subari Sugianto, Efendi Sulistiyo, Restu Budi Sunarningsih, Sunarningsih Sunatar, Bambang Sutardjo, Agus Syahril Hasan - Politeknik Sains dan Teknologi Wiratama Maluku Utara, Syahril Hasan Taufiq Nashrullah Triasri, Dian Wahyu Prihtiyantoro Wicahyono, Agus Wiwi Widayani Yusa, Aldo Yusfida A'la, Fiddin Yusfida, Fiddin