JIMAD : Jurnal Ilmiah Multidisiplin

Klasifikasi Multi-Kelas Serangan Jaringan Menggunakan Algoritma Random Forest pada Dataset NSL-KDD

2026-09-11T02:33:17+00:00

Serangan siber pada jaringan komputer terus meningkat baik dari sisi volume maupun kompleksitas, sehingga dibutuhkan sistem deteksi intrusi yang mampu mengklasifikasikan jenis serangan secara akurat. Penelitian ini bertujuan membandingkan kinerja algoritma Random Forest, Decision Tree, dan Naive Bayes dalam mengklasifikasikan lalu lintas jaringan ke dalam lima kategori, yaitu Normal, Denial of Service (DoS), Probe, Remote to Local (R2L), dan User to Root (U2R). Metode yang digunakan adalah eksperimen klasifikasi multi-kelas pada dataset benchmark NSL-KDD, meliputi tahap praproses data, pelatihan model, dan evaluasi menggunakan metrik akurasi, presisi, recall, dan F1-score pada data uji independen (KDDTest+). Hasil penelitian menunjukkan Decision Tree memperoleh akurasi tertinggi (76,15%), sedikit di atas Random Forest (75,00%), sementara Naive Bayes jauh tertinggal (28,71%). Kedua model berbasis pohon keputusan mampu mendeteksi kategori Normal dan DoS dengan baik, namun mengalami kesulitan signifikan mendeteksi serangan R2L dan U2R akibat ketidakseimbangan kelas pada data latih serta adanya pola serangan baru pada data uji. Analisis feature importance menunjukkan src_bytes, same_srv_rate, dan flag sebagai fitur paling berpengaruh. Temuan ini menegaskan perlunya strategi penyeimbangan data untuk meningkatkan deteksi serangan minoritas pada sistem keamanan jaringan berbasis machine learning

Sistem Pertahanan Udara Berlapis: Tinjauan Konseptual Integrasi Radar, Rudal, dan Alutsista dalam Memperkuat Kedaulatan Dirgantara Indonesia

2026-09-10T11:33:28+00:00

Indonesia's vast archipelagic airspace and increasingly complex aerial threats, ranging from conventional fighter aircraft to cruise and ballistic missiles, unmanned aerial systems, and electronic warfare, demand a robust, multi-layered air defense architecture. This article conceptually examines the layered air defense system, comprising point, terminal, and area defense, employed by the Indonesian Air Force, focusing on the integration of radar, surface-to-air missiles, and supporting defense equipment within the emerging Integrated Air and Missile Defense paradigm. Using a descriptive qualitative approach through literature review, this study synthesizes more than twenty scholarly, doctrinal, and institutional sources. Findings indicate that Indonesia's layered air defense has evolved from the historic SAM-75 system to the NASAMS medium-range missile system, supported by a national radar network integrated through Military Civil Coordination and air traffic service centers. However, implementation faces persistent challenges, including radar blank spots, aging technology, import dependency, budget constraints, and limited electronic-warfare-trained personnel. The Indonesian Air Force's Sishanudnas “Cakra” initiative represents a strategic response integrating sensors, electromagnetic warfare, cyber-space defense, and multi-domain platforms. This study recommends accelerating radar modernization, diversifying missile procurement, and strengthening civil-military coordination to achieve a credible, sovereign layered air defense.

Hubungan Kecemasan dan Komplikasi Kehamilan Dengan Kesiapan Ibu Hamil Trimester III Dalam Menghadapi Persalinan di Wilayah Kerja Puskesmas Benteng Kabupaten Kepulauan Selayar

2026-09-09T03:21:50+00:00

The third trimester of pregnancy is a challenging period since pregnant women experience various physical and psychological changes that can affect their readiness for childbirth. High anxiety levels and the presence of pregnancy complications are known to reduce maternal preparedness for labor. This study aims to determine the relationship between anxiety levels and pregnancy complications with the readiness of third trimester pregnant women in facing childbirth in the working area of Benteng Community Health Center, Selayar Islands Regency. This research used a quantitative approach with a correlational design and a cross-sectional method. The population consisted of all third trimester pregnant women, with a total sample of 50 respondents selected using purposive sampling. The research instruments included an anxiety questionnaire using the Hamilton Anxiety Rating Scale (HARS), a pregnancy complication checklist, and a childbirth readiness questionnaire. Data were analyzed using the Chi-Square test and multiple logistic regression at a significance level of α = 0.05. The results showed a significant relationship between anxiety and childbirth readiness (p < 0.001) and between pregnancy complications and childbirth readiness (p < 0.001). The most dominant factor influencing readiness was anxiety, with the highest odds ratio (OR). It can be concluded that higher anxiety levels and the presence of pregnancy complications decrease the readiness of third trimester pregnant women in facing childbirth. Therefore, early detection, education, and psychological support by healthcare providers are essential to minimize anxiety, prevent complications, and enhance maternal readiness for childbirth.

Tata Kelola Keamanan Sepak Bola Indonesia: Dari Pendekatan Represif Menuju Kemitraan dengan Suporter

2026-09-01T01:27:47+00:00

Match-day security remains one of the most persistent structural problems in Indonesian football, illustrated by the Kanjuruhan Stadium tragedy of 1 October 2022, which claimed more than 130 lives. This article analyses Indonesia's football security governance across three dimensions: the regulatory and institutional framework, crowd psychology and supporter violence, and the position of supporters within the security ecosystem. Using a qualitative descriptive library research method, the study examines official investigation reports, FIFA regulations, police regulations, and national and international academic literature. The findings show that the crisis stems not merely from supporter behaviour, but from weak regulatory synchronisation, the absence of evidence-based crowd management, and the lack of formal partnership with supporter organisations. Comparison with England's post-Hillsborough reform and Japan's supporter model shows that sustainable reform requires shifting from a repressive approach toward a participatory partnership with supporters. The article recommends stricter stadium verification, regulatory harmonisation, and the institutionalisation of official supporter organisations.

Analisis Perilaku Konsumen Terhadap Minat Menggunakan QRIS Sebagai Alat Pembayaran

2026-08-24T03:13:12+00:00

Background: The development of digital payment systems has changed consumer payment behavior in Indonesia. QRIS provides an interoperable payment method that allows consumers to make transactions using various payment applications. Consumer behavior, including perceived convenience, usefulness, security, trust, and lifestyle, may influence the intention to use QRIS. Objective: This study aimed to analyze the relationship between consumer behavior and the intention to use QRIS as a payment instrument. Methods: This study used a quantitative analytical design with a cross-sectional approach. The sample consisted of 86 respondents who had used or were familiar with QRIS payments. Data were collected using a structured questionnaire measuring consumer behavior and intention to use QRIS. Data were analyzed using the Chi-square test with a significance level of 0.05. Results: Most respondents demonstrated positive consumer behavior toward digital payment systems, with 61 respondents (70.9%) categorized as having good behavior. A high intention to use QRIS was found in 66 respondents (76.7%). Statistical analysis showed a significant relationship between consumer behavior and intention to use QRIS (p<0.001). Conclusion: Positive consumer behavior is significantly associated with a higher intention to use QRIS as a payment instrument. Ease of use, perceived benefits, security, and trust should be strengthened to encourage wider QRIS adoption

Hubungan Pola Pemberian Mpasi Dengan Status Gizi Anak Usia 6-24 Bulan Di Desa Saripan Kecamatan Kota Jepara

2026-08-22T11:24:03+00:00

Bayi memiliki kebutuhan gizi yang semakin meningkat, seiring bertambahnya usia sehingga bayi membutuhkan makanan tambahan selain ASI yang dikenal sebagai MP-ASI. MP-ASI adalah makanan tambahan yang diberikan pada bayi berusia 6 bulan yang bertujuan agar gizi bayi bisa terpenuhi. Pemberian MPASI yang tidak sesuai salah satunya adalah disebabkan oleh ibu dalam pola pemberian MP-ASI pada bayinya. Desain penelitian Analitik Korelasi dengan pendekatan Cross-Sectional. Populasi dalam penelitian ini adalah semua balita yang berusia 6-24 bulan di Posyandu wilayah kerja Desa Saripan Kecamatan Kota Jepara. Sampel pada penelitian ini sebanyak 60 anak berdasarkan kriteria. Hasil penelitian menunjukkan bahwa Hasil analisis chi square diperoleh nilai p value adalah 0.000, yang berarti nilai p value<0,05, sehingga dapat diambil kesimpulan Ho ditolak dan Ha diterima, yang berarti ada hubungan bermakna antara Pola Pemberian MPASI Dengan Status Gizi Anak usia 6-24 Bulan di Desa Saripan Kecamatan Kota Jepara