JAMI: Jurnal Ahli Muda Indonesia

SiPuTiH: Model Convolutional Neural Network untuk Sistem Pengenalan Tulisan Tangan Hijaiyah

Saiful Nur Budiman, Sri Lestanti, Sandi Widya Permana — Wed, 31 Dec 2025 00:00:00 +0700

This research presents the development of SiPuTiH (Handwritten Hijaiyah Character Recognition System) using the Convolutional Neural Network (CNN) algorithm to address the challenges of handwriting variability in Arabic scripts. The methodology includes dataset acquisition and preprocessing, CNN architecture design, model training, and performance evaluation. The dataset consists of 1,680 handwritten images representing 30 Hijaiyah characters, divided into 80% training and 20% testing data. The proposed CNN architecture employs four convolutional and pooling layers with a total of 6.8 million trainable parameters. Experimental results show that SiPuTiH achieved a 99.7% accuracy rate in recognizing Hijaiyah characters, with only one misclassification between ‘ta’ (ت) and ‘tsa’ (ث) due to morphological similarity. The trained model was implemented in an interactive Streamlit-based application that includes learning modules, quizzes, and real-time handwriting prediction. SiPuTiH demonstrates high reliability not only as a handwriting recognition system but also as an engaging educational platform for learning Arabic letters. This study confirms the effectiveness of CNNs in handling the morphological complexity of Hijaiyah characters and contributes to the development of intelligent educational tools. Future work may explore larger datasets, transfer learning architectures, and contextual (word-level) recognition to enhance system scalability and performance.

A The Influence of TikTok's Recommendation Algorithm (the ‘FYP Destiny’ Effect) and TikTok Live Chat on Purchase Decisions with Perceived Personalization as an Intervening Variable

Dini Febriani — Wed, 31 Dec 2025 00:00:00 +0700

purchasing decisions, with perceived personalization as a mediating variable. This study explores how TikTok users' perception of personalization strengthens the relationship between Live Chat interactions, recommendation algorithms, and purchasing decisions.

Methods. This study used a quantitative survey design. The sample consisted of 200 TikTok users in Wonocolo District, Surabaya, who were selected through purposive sampling based on the following criteria: active use of TikTok, interaction with FYP and Live Chat, and making purchases through TikTok Shop. Data were collected using a questionnaire with 20 indicators to measure four latent variables on a 1–5 Likert scale. Data analysis was performed using Partial Least Squares Structural Equation Modeling (PLS-SEM) with SmartPLS 4.

Results. The findings show that both the Live Chat feature and the FYP algorithm have a positive influence on perceptions of personalization and purchasing decisions. In addition, perceived personalization proved to be a significant mediator, linking the influence of Live Chat and the FYP algorithm on purchasing decisions.

Conclusions This study confirms that perceived personalization is a key psychological mechanism that links user interactions through Live Chat and algorithmic recommendations with purchasing decisions. To increase purchasing decisions on TikTok, an effective personalization strategy integrated with platform features is required.

Evaluation of Growth Performance and Economic Efficiency of Hybrid Ducks through Herbal Probiotic Feed Supplementation

David Kurniawan — Wed, 31 Dec 2025 00:00:00 +0700

Backgrounds. This study aimed to evaluate the effects of herbal probiotic supplementation in duck feed on the production performance and economic viability of hybrid meat ducks. Methods. A total of 500 unsexed hybrid meat ducklings (DOD), obtained from a cross between Peking drakes and Khaki Campbell ducks, were randomly assigned into five treatment groups (100 ducks per replicate). The experiment was conducted over a 6-week period using a completely randomized design (CRD). All ducks were fed a basal diet formulated according to NRC (1994) standards, with herbal probiotics added to the feed as treatments. Performance indicators measured included feed intake, body weight gain, and feed conversion ratio (FCR). Economic analysis included production costs, revenue, net income, break-even point (BEP), income over feed cost (IOFC), income over feed cost and chick (IOFCC), and revenue-to-cost (R/C) ratio. Data was analyzed using descriptive quantitative methods. Results. Herbal probiotic supplementation positively influenced duck growth performance, resulting in an average FCR of approximately 2.00. Economic analysis revealed improved profitability, with an average R/C ratio of 1.26 and favorable IOFC values. These findings indicate that herbal probiotics can enhance nutrient efficiency without increasing production costs. Conclusions. Incorporating herbal probiotics into duck feed is a promising strategy to improve both biological performance and economic returns in commercial duck farming. Further research is recommended to confirm long-term benefits and broader applicability.

Pergeseran Feature Importance pada Prediksi Pasar Saham Teknologi Menggunakan Machine Learning: Studi Komparatif Pra dan Pasca Pandemi COVID-19

Dzaky Rayssa Buntoro — Wed, 31 Dec 2025 00:00:00 +0700

Tujuan: Penelitian ini bertujuan untuk menganalisis apakah model machine learning (XGBoost dan Random Forest) mengalami pergeseran dalam menentukan fitur terpenting untuk memprediksi arah pergerakan saham teknologi sebelum dan sesudah pandemi COVID-19.

Metode: Data yang digunakan adalah time-series harian dari Invesco QQQ Trust (QQQ) sebagai representasi sektor teknologi Amerika Serikat, serta variabel makroekonomi dan volatilitas. Periode penelitian dibagi menjadi dua rezim: pra-pandemi (2018–2019) dan pasca-pandemi (2021–2022). Model dilatih secara terpisah untuk masing-masing rezim, kemudian dilakukan analisis komparatif terhadap feature importance. Evaluasi model menggunakan metrik Accuracy dan F1 Score.

Hasil: Hasil menunjukkan adanya peningkatan prediktabilitas pasar pada periode pasca-pandemi, dengan F1 Score XGBoost meningkat dari 0,346 menjadi 0,556 dan Random Forest dari 0,164 menjadi 0,544. Analisis feature importance menunjukkan pergeseran dominasi faktor: pra-pandemi dipengaruhi secara merata oleh harga, teknikal, dan makroekonomi, sedangkan pasca-pandemi lebih didominasi faktor makroekonomi (FedFundsRate) dan volatilitas (ATR, VIX).

Kesimpulan: Penelitian ini menyimpulkan bahwa pandemi COVID-19 menyebabkan perubahan rezim prediktif di pasar saham teknologi, dengan meningkatnya peran faktor makroekonomi dan volatilitas. Temuan ini menegaskan pentingnya adaptasi model prediksi serta memberikan wawasan praktis bagi investor dalam memahami dinamika pasar pasca-pandemi.

Pembuatan FarmAR: Media Pembelajaran Hewan Ternak untuk Anak TK Berbasis Augmented Reality

Rafika Akhsani, Muchamad Saiful Muluk — Wed, 31 Dec 2025 00:00:00 +0700

Tujuan. Penelitian ini bertujuan untuk mengembangkan Smartbox FarmAR yaitu sebuah media pembelajaran interaktif berbasis Augmented Reality (AR) untuk mengenalkan hewan ternak kepada anak-anak Taman Kanak-Kanak (TK). FarmAR dikemas dalam bentuk smartbox edukatif untuk menciptakan pengalaman belajar yang imersif dan kontekstual.

Material dan Metode. Penelitian menggunakan model pengembangan Multimedia Development Life Cycle (MDLC). Sistem dikembangkan menggunakan Unity dan Vuforia Engine.

Hasil. Hasil penelitian menunjukkan bahwa prototipe Smartbox FarmAR yang dikembangkan telah lolos uji fungsionalitas (black box) dengan hasil 100% fungsi berjalan normal. Selanjutnya, uji coba terbatas kepada 42 anak TK menunjukkan skor rata-rata (X) yang diperoleh dari kuesioner Respon Langsung Anak adalah 1.07 dan dominasi respons positif diperkuat oleh data frekuensi di mana 93.39% dari total seluruh jawaban yang diberikan oleh responden adalah pilihan "positif" (Skor 1). Hal ini mengindikasikan bahwa FarmAR efektif meningkatkan minat dan pemahaman anak TK tentang hewan ternak.

Kesimpulan. Smartbox FarmAR berhasil dikembangkan sebagai media pembelajaran Augmented Reality yang sangat layak dan efektif untuk mengenalkan hewan ternak pada anak usia dini. Implementasi FarmAR disarankan untuk diterapkan sebagai alat bantu mengajar untuk meningkatkan kualitas pembelajaran di TK.

The Utilization of Three-Dimensional Books and Ika Duba Hand Puppets Based on a Sociolinguistic Approach in Improving Lampung Language Literacy

bagus, Abdul Aziz, S.Sos — Wed, 31 Dec 2025 00:00:00 +0700

Tujuan. Penurunan jumlah penutur bahasa Lampung, terutama di kalangan generasi muda, mengancam keberlanjutan bahasa ini dan berpotensi menjadikannya sekadar simbol budaya tanpa fungsi komunikatif. Penelitian ini menganalisis pemanfaatan buku tiga dimensi dan boneka tangan Petualangan Ika dan Duba sebagai media literasi untuk memperluas domain penggunaan bahasa Lampung dan memperkuat sikap positif anak terhadap bahasa daerah Lampung.

Material dan Metode. Pendekatan kualitatif digunakan dengan kajian literatur, analisis isi, dan dokumentasi lapangan dari Laporan Krida Duta Bahasa Nasional Provinsi Lampung.

Hasil. Hasil penelitian menunjukkan bahwa penggunaan buku tiga dimensi dan boneka tangan Ika Duba mampu meningkatkan minat baca, keterlibatan, serta kebanggaan anak terhadap bahasa Lampung. Berdasarkan survei kepuasan, lebih dari 85% peserta menyatakan bahwa media ini menarik dan membantu mereka memahami kosakata baru bahasa Lampung. Guru dan fasilitator melaporkan adanya peningkatan kemampuan mendengar dan berbicara anak dalam bahasa daerah. Selain itu, 90% responden menyebut media ini relevan dengan konteks sosial budaya lokal dan dapat meningkatkan sikap positif terhadap bahasa Lampung. Media ini juga terbukti membantu guru dalam penyediaan bahan ajar kontekstual dan memperluas domain penggunaan bahasa Lampung dari ruang domestik ke ranah pendidikan formal maupun nonformal.

Kesimpulan. Pemanfaatan buku tiga dimensi dan boneka tangan Petualangan Ika dan Duba menjadi inovasi efektif dalam meningkatkan literasi sekaligus melestarikan bahasa daerah, khususnya bahasa Lampung. Media ini berkontribusi pada perubahan sikap berbahasa yang lebih positif, memperkuat identitas budaya lokal, serta menghadirkan pengalaman belajar yang menyenangkan bagi anak-anak. Namun demikian, implementasi media ini masih menghadapi tantangan, seperti keterbatasan sumber daya, kompetensi guru, dan keberlanjutan program. Oleh karena itu, diperlukan dukungan kebijakan pendidikan, pelatihan guru, serta kolaborasi antara pemerintah, lembaga pendidikan, dan komunitas bahasa untuk memperluas dampaknya. Dengan pendekatan yang komprehensif dan partisipatif, media literasi berbasis budaya lokal ini dapat menjadi model revitalisasi bahasa daerah di Indonesia.

Kata Kunci

Bahasa Lampung; Boneka Tangan; Buku Tiga Dimensi; Revitalisasi Bahasa Daerah;

Backgrounds. The declining number of Lampung language speakers, particularly among younger generations, poses a serious threat to the language’s sustainability and risks reducing it to a mere cultural symbol devoid of communicative function. This study analyzes the use of the three-dimensional book and hand puppet “Petualangan Ika dan Duba” as literacy media to expand the domains of Lampung language use and to strengthen children’s positive attitudes toward their regional language.

Methods. A qualitative approach was employed through literature review, content analysis, and field documentation derived from the Krida Report of the National Language Ambassadors of Lampung Province.

Results. Results of the study indicate that the use of the three-dimensional book and hand puppets Ika Duba effectively enhances children’s reading interest, engagement, and sense of pride in the Lampung language. Based on a satisfaction survey, more than 85% of participants stated that the media were engaging and helped them acquire new Lampung vocabulary. Teachers and facilitators reported an improvement in children’s listening and speaking abilities in the local language. Moreover, 90% of respondents acknowledged that these media were relevant to the local sociocultural context and fostered a more positive attitude toward the Lampung language. The media also proved beneficial for teachers in providing contextual teaching materials and in expanding the domains of Lampung language use from domestic settings to both formal and non-formal educational environments.

Conclusions. The utilization of the three-dimensional book and hand puppets “Petualangan Ika dan Duba” serves as an effective innovation for enhancing literacy while simultaneously preserving regional languages, particularly the Lampung language. This medium contributes to fostering more positive language attitudes, strengthening local cultural identity, and creating enjoyable learning experiences for children. Nevertheless, its implementation still faces several challenges, such as limited resources, insufficient teacher competence, and program sustainability issues. Therefore, educational policy support, teacher training, and collaboration among government institutions, educational bodies, and language communities are essential to broaden its impact. Through a comprehensive and participatory approach, this culture-based literacy medium can serve as a model for regional language revitalization across Indonesia.

Key Words

Hand Doll;Lampung Language; Three-Dimensional Books; Regional Language Revitalization;