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All Journal JURNAL PENDIDIKAN TAMBUSAI PHILOSOPHICA Jurnal Bahasa, Sastra, dan Budaya Jurnal Pendidikan dan Konseling Sasando : Jurnal Bahasa, Sastra Indonesia, dan Pengajarannya Jurnal Ilmiah SEMANTIKA Jurnal Dinamika Informatika (JDI) Alinea: Jurnal Bahasa, Sastra, dan Pengajaran Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of Innovative and Creativity Jurnal Intelek Dan Cendikiawan Nusantara Jurnal Intelek Insan Cendikia Jurnal Pustaka Cendekia Hukum dan Ilmu Sosial Al Maktabah Jurnal kajian Ilmu dan Perpustakaan
Asriyani, Wahyu
Universitas Pancasakti Tegal
Religion Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Social Sciences Other

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Analisis Kinerja Algoritma K-Nearest Neighbor (KNN) pada Klasifikasi Data Bank Marketing Yosephus Arpan Polado Sinurat; Hasbi Firmansyah; Wahyu Asriyani; Rizki Prasetyo Tulodo
Jurnal Intelek Insan Cendikia Vol. 3 No. 1 (2026): JANUARI 2026
Publisher : PT. Intelek Cendikiawan Nusantara

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Abstract

Pemasaran langsung (direct marketing) merupakan salah satu strategi utama industri perbankan untuk menawarkan produk deposito berjangka. Namun, kampanye yang tidak tertarget seringkali tidak efisien dan memakan biaya tinggi. Penelitian ini bertujuan untuk membangun model prediksi klasifikasi menggunakan algoritma K-Nearest Neighbor (KNN) untuk menentukan nasabah yang berpotensi berlangganan deposito berjangka berdasarkan data historis kampanye pemasaran bank. Dataset yang digunakan adalah Bank Marketing Dataset dari UCI Machine Learning Repository. Proses penelitian meliputi pra-pemrosesan data (cleaning, encoding, dan normalisasi Min-Max), pembagian data latih dan uji, serta pengujian nilai $k$ yang berbeda (k=3, 5, 7, 9). Hasil eksperimen menunjukkan bahwa algoritma KNN dengan nilai k=5 menghasilkan kinerja optimal dengan akurasi sebesar 89,2%, presisi 65%, dan recall 58%. Penelitian ini menyimpulkan bahwa KNN efektif digunakan untuk klasifikasi data pemasaran bank, namun memerlukan penanganan ketidakseimbangan kelas untuk meningkatkan nilai recall.
Analisis Pemetaan Pola Pendonor Darah pada Blood Transfusion Service Center Menggunakan Metode Self-Organizing Map Rafli Juan Lauda Al Faiq; Hasbi Firmansyah; Wahyu Asriyani; Rizki Prasetyo Tulodo
Jurnal Intelek Insan Cendikia Vol. 3 No. 1 (2026): JANUARI 2026
Publisher : PT. Intelek Cendikiawan Nusantara

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Abstract

Manajemen stok darah sangat bergantung pada perilaku orang yang memberi darah. Penelitian ini bertujuan untuk memahami pola cara orang-orang tersebut memberi darah menggunakan algoritma yang disebut Self-Organizing Map (SOM). Data yang digunakan terdiri dari 748 orang dengan fitur utama berdasarkan model RFM, yaitu tingkat kebaruannya, frekuensi, nilai kontribusi, dan waktu. Dengan metode SOM, data yang memiliki banyak dimensi dipetakan ke dalam grid dua dimensi untuk mengelompokkan orang yang memberi darah berdasarkan tingkat kesetiaannya. Hasil penelitian menunjukkan bahwa pemetaan ini dapat membedakan secara visual antara orang yang aktif dan tidak aktif dalam memberi darah, yang membantu pusat transfusi darah dalam mengambil keputusan yang lebih baik untuk menahan orang-orang yang memberi darah.
ARTIKEL Diksi dan Citraan dalam Kumpulan Puisi Ada berita apa hari ini, Den Sastro? karya Sapardi Djoko Damono dan Implikasinya terhadap pembelajaran di SMA : Indonesia Zaeny Musthofa; Leli Triana; Wahyu Asriyani
Alinea: Jurnal Bahasa, Sastra dan Pengajaran Vol. 2 No. 3 (2022): Alinea: Jurnal Bahasa, Sastra, dan Pengajaran
Publisher : Bale Literasi: Lembaga Riset, Pelatihan & Edukasi, Sosial, Publikasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58218/alinea.v2i3.348

Abstract

Tujuan penelitian ini; mendeskripsikan diksi dan citraan yang digunakan pada kumpulan puisi Ada berita apa hari ini, Den Sastro? Karya Sapardi Djoko Damono dan mendeskripsikan implikasi hasil penelitian terhadap pembelajaran bahasa Indonesia di SMA. Penelitian ini menggunakan metode deskriptif kualitatif. Sumber data penelitian ini adalah kumpulan puisi Ada berita apa hari ini, Den Sastro? karya Sapardi Djoko Damono. Wujud data penelitian ini berupa penggalan kalimat dalam kumpulan puisi Ada berita apa hari ini, Den Sastro? Teknik penyediaan data dalam penelitian ini menggunakan metode teknik baca dan teknik catat. Teknik analisis data menggunakan kajian analisis deskriptif. Teknik penyajian hasil analisis data menggunakan teknik informal. Hasil penelitian menunjukkan diksi dan citraan yang terdapat di kumpulan puisi Ada berita apa hari ini, Den Sastro? karya Sapardi Djoko Damono dengan jumlah data sebanyak 53. Penelitian diksi dan citraan ini diimplikasikan dalam pembelajaran bahasa Indonesia di SMA kelas X pada kompetensi dasar 3.17 menganalisis unsur pembangun puisi. Kompetensi dasar 4.17 menulis puisi dengan memperhatikkan unsur pembangunnya (tema, diksi, gaya bahasa, imaji, struktur, perwajahan).
Analisis Pengaruh Parameter Support Vector Machine Terhadap Akurasi Prediksi Harga Saham: Penelitian Arief Priyono; Hasby Firmansyah; Wahyu Asriyani; Rizki Prasetyo Tulodo
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 3 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 3 (Januari 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i3.4529

Abstract

Stock price prediction is challenging due to fluctuating and nonlinear behavior. This study examines the effect of parameter optimization in Support Vector Machine (SVM) on prediction accuracy and error for stock prices. The dataset consists of PT Telekomunikasi Indonesia Tbk (TLKM) stock data from 2022–2024 obtained from Yahoo Finance. The workflow includes normalization, windowing-based feature construction, train–test splitting, and modeling using ε-Support Vector Regression (ε-SVR) with a Radial Basis Function (RBF) kernel. Parameter optimization is conducted via Optimize Parameters (Evolutionary) to find suitable C, gamma, and epsilon values, and the optimized model is compared against a baseline using LibSVM default parameters. Performance is evaluated using Root Mean Squared Error (RMSE), Absolute Error (AE), Correlation, and Prediction Average. Results indicate that the optimized model produces more stable predictions and follows the actual pattern more consistently, although the baseline may yield lower numerical error in some cases. This finding suggests that parameter optimization increases model sensitivity to training patterns but requires careful regularization to prevent accuracy degradation on test data.
Penerapan Algoritma k-Nearest Neighbor untuk Klasifikasi Kondisi Lingkungan Pertanian Berbasis IoT : Penelitian Panji Pangestu Saputra; Hasbi Firmansyah; Rizki Prasetyo Tulodo; Priyo Haryoko; Wahyu Asriyani
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 3 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 3 (Januari 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i3.4566

Abstract

The development of the Internet of Things (IoT) has encouraged the adoption of smart technologies in agriculture to enable real-time environmental monitoring. This study aims to apply the k-Nearest Neighbor (k-NN) algorithm to classify agricultural environmental conditions into ideal and non-ideal categories based on IoT sensor data. The dataset used in this research was obtained from an open-source repository and consists of several environmental parameters, including temperature, humidity, and soil moisture. The research stages include data preprocessing, attribute and label determination, data normalization using the z-transformation method, and model evaluation through cross validation. The performance of the classification model was assessed using accuracy, precision, recall, and F-measure metrics. The experimental results indicate that the k-NN algorithm is capable of providing good classification performance in identifying agricultural environmental conditions. However, limitations were observed in detecting minority class instances, suggesting the need for further parameter optimization and model enhancement. This research is expected to serve as a foundation for the development of IoT-based smart agriculture systems to support more effective decision-making in agricultural environmental management.
Segmentasi Pelanggan Grosir Menggunakan K-Means: Analisis Outlier dan Ketidakseimbangan Data : Penelitian N Tahta Phudjashakty; Hasbi Firmansyah; Wahyu Asriyani; Ali Sofyan
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 3 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 3 (Januari 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i3.4771

Abstract

This study aims to segment wholesale customers using the K-Means clustering algorithm and to examine the impact of outliers and data imbalance on the clustering results. The data are taken from the Wholesale Customers Dataset of the UCI Machine Learning Repository, consisting of 440 customers with eight numerical attributes representing annual purchase amounts. The preprocessing steps include exploratory data analysis, outlier detection using Z-Score and boxplot visualization, handling of extreme values with winsorizing, and Z-Score normalization to make the attribute scales comparable. The number of clusters is determined using the Elbow Method. Applying K-Means with produces two highly imbalanced clusters, with 437 customers in Cluster 0 and 3 customers in Cluster 1. Cluster 0 represents regular customers whose purchasing patterns are close to the overall average, while Cluster 1 consists of customers with very high purchases, especially in Frozen and Delicassen categories. Evaluation using the average within centroid distance and the Davies–Bouldin Index shows that, after outlier handling and normalization, the cluster structure becomes more stable and easier to interpret. The resulting segmentation can support differentiated marketing and service strategies for regular and high-spending customers and highlights the importance of proper preprocessing when applying K-Means.
Evaluasi Klasifikasi Akurasi dan Weighted Mean Precision pada Gradient Boosted Trees untuk Risiko Diabetes Awal Ihya Bahrul Alam; Hasbi Firmansyah; Wahyu Asriyani
Jurnal Dinamika Informatika Vol. 15 No. 1 (2026): Vol. 15 No. 1 (2026)
Publisher : Program Studi Informatika Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/jdi.v15i1.423

Abstract

Diabetes mellitus is a chronic disease with a high prevalence that requires early‑stage risk detection to enable effective prevention efforts. This study aims to analyze the capability of the Gradient Boosted Trees algorithm to classify early‑stage diabetes risk based on clinical symptoms using the Early Stage Diabetes Risk Prediction dataset. The research methodology includes data preprocessing, splitting the data into training and test sets, and training a Gradient Boosted Trees classification model in RapidMiner with the class attribute set as the labeled target. Model performance is evaluated using accuracy, weighted mean precision, and weighted mean recall metrics to assess the balanced classification ability for each class. Experimental results show that the Gradient Boosted Trees model achieves good classification performance with an accuracy of 91.76%, a weighted mean precision of 92.04%, and a weighted mean recall of 90.49% on the test data, supported by a confusion matrix pattern dominated by correct predictions for both classes. These findings indicate that the Gradient Boosted Trees approach has strong potential to be used as a decision‑support component in early diabetes risk detection systems and is worth further development for broader clinical data scenarios.
Co-Authors . Eko Budiraharjo Abrori Musafic Al Rasyid Afsun Aulia Afsun Aulia Nirmala Ahmad Ferdi Dwi Nugroho Ai Djamilatul Wahidah Aifa Inayati Ali Sofyan Ali Sofyan Amelia Laura Ardianti Aminatuz Zahro Arief Priyono Armand Cahya Nugraha Bimo Aryo Pangestu Burhan Eko Purwanto Chandra Pratama Putra Raharja Devina Anggraeni Eko Budi Raharjo Erza Rifa Nihayah Fauziah Elis Cholisatul Fifit Solihatun Fuada, Sania Fitra Hanjiyan Riyan Hidayat Hasbi Firmansyah Hasbi Firmansyah Hasby Firmansyah Ihya Bahrul Alam Inayah, Dwi Nita Laeli Intan Puspita Sari Irfandi Irfandi Khusnul Khotimah Kuncoro Singgih Prasojo Leli Triana Leli Triana Lisa Nur Amelia Lyswidia Andriarsih M.Fery Ardiansyah Mohamad Faris Fadil Mohamad Raffi Iskandar Mohamad Shofy Muhamad Aris Purwanto Muhammad Fiqih Ainurohman Muhammad Hanif Fathurahman Muhammad Rasyid Ridho Musthofa, Zaeny N Tahta Phudjashakty Panji Pangestu Saputra Priyo Haryoko Purwanto, Burhan Eko Rafli Juan Lauda Al Faiq Raihan Adyatma Ramadhani Zidan Arifin Rawoyo Ria indah fitria Ridlo, Muhammad Rasyid Riski Prasetyo Tulodo Rizki Prasetyo Tulodho Rizki Prasetyo Tulodo Sania Fitra Fuada Saputri, Yoandini Sari, Yulia Prima Sri Mulyati Sri Mulyati SRI UTAMI Sutji Muljani Syamsul Anwar Syamsul Anwar Tri Mulyono Tri Mulyono Widiastuti Widiastuti Winda Gunansi Windi Listiyawati Yoandini Saputri Yosephus Arpan Polado Sinurat Yulia Prima Sari Zaeny Musthofa