Abstract:Abstract: This community service aims to empower people who are members of the Yasayan Senyum Ibu Indonesia (YSII), so that they dare to appear to do public speaking. Empowerment needs to be done, considering the number…
of Foundation activities that require public speaking skills. The empowerment method used in this service has three stages. The first stage is to introduce and teach participants, how to find material or material to be delivered in public speaking, using the internet. After the material is obtained, they are asked to arrange the sentences that will be delivered in public speaking, then practice them one by one. The second method is to teach and practice the participants to hear a lot while memorizing the words that have been heard, to be memorized and repeated. This method is the basic method of public speaking, which relies a lot on memory, based on what is heard, then memorized. After memorizing, recited in public speaking activities. The third method is one by one the participants learn to recite flat voice intonation, as a basic technique in public speaking. The results of this service are public speaking modules that will be made HKI, popular articles in online media, and scientific articles in public service journals.
Keywords: Public Speaking, Internet, Information Technology
Abstrak: Pengabdian ini bertujuan untuk memberdayakan masyarakat yang tergabung dalam Yasayan Senyum Ibu Indonesia (YSII), agar berani tampil untuk melakukan public speaking. Pemberdayaan ini perlu dilakukan, mengingat banyaknya kegiatan Yayasan yang memerlukan keterampilan public speaking. Metode pemberdayaan yang digunakan dalam pengabdian ini ada tiga tahap. Tahap pertama, adalah mengenalkan dan mengajarkan kepada para peserta, cara mencari bahan atau materi yang akan disampaikan dalam public speaking, dengan menggunakan internet. Setelah bahan di dapatkan, mereka diminta untuk menyusun kalimat yang akan disampaikan di dalam public speaking, kemudian mempraktikannya satu-persatu. Metode kedua adalah mengajarkan dan mempraktikan kepada para peserta untuk banyak mendengar sekaligus menghafalkan kata-kata yang telah didengar, untuk dihapalkan dan diulang kembali. Metode ini adalah metode dasar public speaking, yang banyak mengandalkan daya ingat, berdasarkan dari apa yang didengar, kemudian dihapalkan. Setelah hapal, dilafalkan dalam kegiatan public speaking. Metode ketiga adalah satu persatu peserta belajar melafalkan intonasi suara datar, sebagai teknik dasar dalam public speaking. Hasil dari kegiatan pengabdian ini adalah modul public speaking yang akan dibuat HKI, artikel popular di media online, adan artikel ilmiah di jurnal pengadian masyarakat.
Kata Kunci: Public Speaking, Internet, Teknologi informasi
Abstract:Abstract: Community Service Activities is conducted in the form of one day training for teachers in using Microsoft Office software as one way to utilize information technology in delivering learning materials to students…
s especially in SMA Tamansiswa Suka Damai. The target in this activity is the teachers of Tamansiswa Suka Damai High School in District Pulo Bandring Kab. Asahan which amounted to approximately 18 people. This devotional activity is done by lecture method, demonstration, and practice with question and answer. The lecture method is used to explain the introductory concept of the introduction of Microsoft Office software as one of the media in facilitating human work. Demonstration method is used to show a working process that is the stages of recognizing the tools that exist in the Microsoft Office software and know each function, while the practice method to practice the use of the application directly. While the question and answer method to give the participants the opportunity in consultation to overcome obstacles in understanding the material already obtained. The end result of this activity is expected to accelerate and facilitate the teachers in delivering learning materials to the students.
Keywords: Microsoft Office software, teachers, students, information technology
Abstrak: Kegiatan Pengabdian Masyarakat ini dilaksanakan dalam bentuk pelatihan sehari bagi guru-guru dalam menggunakan software Microsoft Office sebagai salah satu cara dalam memanfaatkan teknologi informasi dalam menyampaikan materi pembelajaran kepada siswa-siswi khususnya di SMA Tamansiswa Suka Damai. Sasaran dalam kegiatan ini adalah para guru-guru SMA Tamansiswa Suka Damai di Kecamatan Pulo Bandring Kab. Asahan yang berjumlah lebih kurang 18 orang. Kegiatan pengabdian ini dilakukan dengan metode ceramah, demonstrasi, dan latihan yang disertai tanya jawab. Metode ceramah digunakan untuk menjelaskan konsep pengantar dari pengenalan software Microsoft Office sebagai salah satu media dalam mempermudah pekerjaan manusia. Metode demonstrasi dipakai untuk menunjukkan suatu proses kerja yaitu tahap-tahap mengenalan tool-tool yang ada pada software Microsoft Office dan mengetahui masing-masing fungsinya, sedangkan metode latihan untuk mempraktikkan langsung penggunaan aplikasi tersebut. Sementara metode tanya jawab untuk memberi kesempatan para peserta dalam berkonsultasi untuk mengatasi kendala dalam memahami materi yang sudah didapat. Hasil akhir dari kegiatan ini diharapkan dapat mempercepat dan mempermudah para guru dalam meyampaikan materi pembelajaran kepada siswa-siswinya.
Kata kunci: Software Microsoft Office, Guru, Siswa-siswi, teknologi informasi
Abstract:Abstract: Community Service Activity is conducted in the form of training in the utilization of information technology in data processing that aims to provide knowledge and skills for the village apparatus in Buntu Pane…
subdistrict in data processing that is computerized as one way in making an institution decision.The target in this activity is the village apparatus in Buntu Pane sub-district which is approximately 25 people. Training in data processing is done by lecture method, demonstration, and practice with a question and answer. The lecture method is used to explain the introductory concept of the introduction of SPSS software as one of the media in data processing. Demonstration method is used to show a working process that is stages of recognizing the existing tools in the software SPSS and know each function, while the method of practice to practice data processing based on information technology by processing a certain data. While the question and answer method to give the participants the opportunity in consultation to overcome obstacles in understanding the material already obtained. The end result of activities is expected to accelerate and facilitate the employees in decision making for the future.
Keywords: Data processing, SPSS software, computer, information technology
Abstrak: Pengabdian kepada masyarakat merupakan salah satu bentuk Tridarma perguruan Tinggi yang harus dilaksanakan oleh seorang dosen. Pada kegiatan pengabdian pada masyarakat ini akan mengimplementasikan kompetensi keilmuan yang dimiliki agar memberikan manfaat bagi masyarakat, dimana kegiatan ini dilakukkan dalam bentuk pelatihan dalam pemanfaatan teknologi informasi dalam pengolahan data yang bertujuan memberikan pengetahuan dan keterampilan bagi para perangkat desa di kecamatan Buntu Pane dalam pengolahan data yang bersifat komputerisasi sebagai salah satu cara dalam pengambilan keputusan sebuah instansi.Sasaran dalam kegiatan PKM ini adalah para perangkat desa di kecamatan Buntu Pane yang berjumlah lebih kurang 25 orang. Pelatihan dalam pengolahan data ini dilakukan dengan metode ceramah, demonstrasi, dan latihan yang disertai tanya jawab. Metode ceramah digunakan untuk menjelaskan konsep pengantar dari pengenalan software SPSS sebagai salah satu media dalam pengolahan data. Metode demonstrasi dipakai untuk menunjukkan suatu proses kerja yaitu tahap-tahap mengenalan tool-tool yang ada pada software SPSS dan mengetahui masing-masing fungsinya, sedangkan metode latihan untuk mempraktikkan pengolahan data berbasis teknologi informasi dengan mengolah sebuah data tertentu. Sementara metode tanya jawab untuk memberi kesempatan para peserta dalam berkonsultasi untuk mengatasi kendala dalam memahami materi yang sudah didapat. Hasil akhir dari kegiatan PKM ini diharapkan dapat mempercepat dan mempermudah para pegawai dalam pengambilan keputusan untuk masa yang akan datang.
Kata kunci: Pengolahan data, Software SPSS, komputer, teknologi informasi
Abstract:Abstract: The assessment of PKH employees in Batu Bara Regency still requires an objective and measurable evaluation process to support performance decisions. Manual assessment can cause subjectivity and take more time,…
especially when several criteria must be considered. This study aims to apply the Simple Additive Weighting (SAW) method to the PKH employee assessment system in Batu Bara Regency. The criteria used in this assessment are attendance, teamwork, responsibility, communication, and length of service. The SAW method is applied by determining criteria weights, converting employee values, normalizing the decision matrix, and calculating preference values to obtain the final ranking. The results show that alternative A1, Rahmi Rizkya, obtained the highest score of 0.9504 and ranked first, while alternative A5, Toni Syahpradanadaely, obtained the lowest score of 0.4831. Based on these results, the SAW method can help the employee assessment process become more objective, structured, and useful as a reference for evaluating PKH employee performance.
Keywords: decision support system; PKH employee; simple additive weighting
Abstrak: Penilaian pegawai PKH Kabupaten Batu Bara membutuhkan proses evaluasi yang objektif dan terukur untuk mendukung pengambilan keputusan terhadap kinerja pegawai. Penilaian yang masih dilakukan secara manual dapat menimbulkan subjektivitas dan membutuhkan waktu lebih lama, terutama jika penilaian melibatkan beberapa kriteria. Penelitian ini bertujuan untuk menerapkan metode Simple Additive Weighting (SAW) pada sistem penilaian pegawai PKH Kabupaten Batu Bara. Kriteria yang digunakan dalam penilaian meliputi kehadiran, kerja sama tim, tanggung jawab, komunikasi, dan masa kerja. Metode SAW diterapkan melalui penentuan bobot kriteria, konversi nilai pegawai, normalisasi matriks keputusan, serta perhitungan nilai preferensi untuk memperoleh hasil perankingan. Hasil penelitian menunjukkan bahwa alternatif A1 atas nama Rahmi Rizkya memperoleh nilai tertinggi sebesar 0,9504 dan menempati peringkat pertama, sedangkan alternatif A5 atas nama Toni Syahpradanadaely memperoleh nilai terendah sebesar 0,4831. Berdasarkan hasil tersebut, metode SAW dapat membantu proses penilaian pegawai menjadi lebih objektif, terstruktur, dan dapat dijadikan acuan dalam evaluasi kinerja pegawai PKH.
Kata kunci: pegawai PKH; simple additive weighting; sistem pendukung keputusan
Abstract:This study focuses on the development of an Augmented Reality (AR)–based learning application designed to assist students in understanding the mathematical concepts of volume and surface area of three-dimensional geometric…
tric shapes. The development process adopted the Multimedia Development Life Cycle (MDLC) model, which consists of six systematic stages: concept, design, material collecting, assembly, testing, and distribution. The research concentrated on the development and expert validation stages. Validation results from content and media experts indicate that the application meets pedagogical and technical feasibility standards. The content expert confirmed that the materials align with the national mathematics curriculum and are presented in a clear, contextual, and accurate manner, while the media expert highlighted the user-friendly interface, interactive features, and visual appeal of
the application. Theoretically, this AR-based medium bridges the gap between abstract mathematical concepts and concrete visualization by enabling students to interact directly with
virtual 3D objects. Practically, the application enhances learning motivation and engagement by providing dynamic, interactive experiences. Overall, this research contributes to the
advancement of educational technology by offering a systematic model for developing AR-based learning media that support active and meaningful learning in the digital
era.
Abstract:Abstract: Query performance is a critical factor in managing large-scale databases. One of the most widely used optimization techniques is indexing. This study aims to analyze the impact of indexing on query performance…
in PostgreSQL, compare the effectiveness of B-Tree and Hash indexes, and evaluate their influence on query planner decisions. A quantitative experimental approach was employed using the TPC-H benchmark dataset at scale factors SF0.1, SF1, and SF10. Experiments were conducted using EXPLAIN ANALYZE on exact match, range, and join queries under three conditions: without indexing, with B-Tree indexing, and with Hash indexing. The results demonstrate that indexing significantly improves query performance. For exact match queries on the SF10 dataset, execution time decreased from 93.36 ms without indexing to 0.034 ms using B-Tree and 0.045 ms using Hash indexes. For join queries, execution time was reduced from 857.77 ms to 0.180 ms using B-Tree and 0.079 ms using Hash indexes. B-Tree showed consistent performance across different query types, while Hash achieved the best results for equality-based queries. Furthermore, index usage influenced query planner decisions in selecting more efficient execution strategies. These findings indicate that appropriate index selection can substantially improve data access efficiency in PostgreSQL.
Keywords: b-tree index; hash index; PostgreSQL; query optimization; query planner
Abstrak: Performa query merupakan faktor penting dalam pengelolaan basis data berskala besar. Salah satu teknik optimasi yang umum digunakan adalah indexing. Penelitian ini bertujuan menganalisis pengaruh penggunaan indexing terhadap performa query pada PostgreSQL, membandingkan efektivitas B-Tree dan Hash index, serta mengevaluasi pengaruhnya terhadap keputusan query planner. Penelitian menggunakan metode eksperimen kuantitatif dengan dataset benchmark TPC-H pada skala SF0.1, SF1, dan SF10. Pengujian dilakukan menggunakan EXPLAIN ANALYZE pada exact match query, range query, dan join query dalam kondisi tanpa index, menggunakan B-Tree index, dan Hash index. Hasil penelitian menunjukkan bahwa indexing meningkatkan performa query secara signifikan. Pada exact match query dataset SF10, execution time menurun dari 93,36 ms tanpa index menjadi 0,034 ms menggunakan B-Tree dan 0,045 ms menggunakan Hash index. Pada join query, execution time berkurang dari 857,77 ms menjadi 0,180 ms menggunakan B-Tree dan 0,079 ms menggunakan Hash index. B-Tree menunjukkan performa yang konsisten pada berbagai jenis query, sedangkan Hash index memberikan performa terbaik pada query berbasis equality. Selain itu, penggunaan index memengaruhi keputusan query planner dalam memilih strategi eksekusi yang lebih efisien. Hasil penelitian menunjukkan bahwa pemilihan metode indexing yang tepat dapat meningkatkan efisiensi akses data pada PostgreSQL
Kata kunci: b-tree index; hash index; optimasi query; PostgreSQL; query planner
Abstract:Abstract: Existing IoT anomaly detection studies have achieved high classification performance, but most focus on accuracy and F1-score without explicitly controlling the false positive rate (FPR). In addition, many approaches…
oaches rely on a single detection perspective, limiting their operational reliability. To address this gap, this study proposes a hybrid anomaly detection framework integrating Long Short-Term Memory (LSTM), Shannon entropy, and autoencoder reconstruction error. Shannon entropy is incorporated as an additional feature, while LSTM and the autoencoder capture temporal and reconstruction characteristics. The resulting hybrid representation is processed by a constraint-based threshold selection mechanism that enforces FPR . Experiments on the TON-IoT and Edge-IIoTset datasets achieved average F1-scores of 0.9250 and 0.9934, while maintaining average FPR values of 0.0091 and 0.0714, respectively. Analysis of entropy distributions showed consistent differences between normal and anomalous traffic across both datasets, indicating that Shannon entropy provides discriminative information for anomaly detection. These results demonstrate strong detection performance with controlled false alarms, while ablation studies confirm the significant contribution of Shannon entropy to overall model performance.
Keywords: false positive rate; hybrid deep learning; Internet of Things; network anomaly detection; Shannon entropy
Abstrak: Penelitian deteksi anomali Internet of Things (IoT) telah menunjukkan performa klasifikasi yang tinggi, namun sebagian besar masih berfokus pada accuracy dan F1-score tanpa mengendalikan false positive rate (FPR) secara eksplisit. Selain itu, banyak pendekatan hanya memanfaatkan satu perspektif deteksi sehingga reliabilitas operasionalnya masih terbatas. Untuk mengatasi kesenjangan tersebut, penelitian ini mengusulkan kerangka deteksi anomali hybrid yang mengintegrasikan Long Short-Term Memory (LSTM), Shannon entropy, dan autoencoder reconstruction error. Shannon entropy digunakan sebagai fitur tambahan, sedangkan LSTM dan autoencoder menangkap karakteristik temporal dan deviasi rekonstruksi. Representasi hybrid yang dihasilkan kemudian diproses melalui mekanisme constraint-based threshold selection dengan batas FPR . Hasil pengujian pada dataset TON-IoT dan Edge-IIoTset menghasilkan F1-score rata-rata sebesar 0,9250 dan 0,9934, dengan FPR rata-rata sebesar 0,0091 dan 0,0714. Perbedaan nilai entropy yang konsisten antara trafik normal dan anomali pada kedua dataset menunjukkan bahwa Shannon entropy menyediakan informasi diskriminatif untuk deteksi anomali. Hasil tersebut menunjukkan performa deteksi yang kuat dengan false alarm yang terkendali, sementara studi ablasi mengonfirmasi kontribusi signifikan Shannon entropy terhadap performa model.
Kata kunci: deteksi anomali jaringan; false positive rate; hybrid deep learning; Internet of Things; Shannon entropy
Abstract:Abstract: The development of Artificial Intelligence (AI) in education provides significant opportunities for supporting the development of English teaching materials in elementary schools. However, the wide variety of available…
vailable AI tools makes it difficult for teachers to select the most appropriate tools for their instructional needs. This study aims to analyze and generate recommendations for AI utilization using a Decision Support System (DSS) based on the Analytical Hierarchy Process (AHP) and Simple Additive Weighting (SAW) methods. The AHP method is used to determine the weight of criteria based on their importance, while the SAW method is applied to rank alternative AI tools. This study involves teachers at SDN 15 Padang Genting in identifying criteria and evaluating alternatives. The results show that the proposed DSS model is capable of generating appropriate AI tool recommendations based on predefined criteria. This approach contributes to more objective and systematic decision-making in utilizing AI for developing English teaching materials in elementary education.
Keywords: analytical hierarchy proces; artificial intelligence; decision support system; simple additive weighting; teaching materials
Abstrak: Perkembangan Artificial Intelligence (AI) dalam pendidikan memberikan peluang dalam penyusunan bahan ajar Bahasa Inggris di sekolah dasar. Namun, banyaknya pilihan tools AI menyebabkan guru mengalami kesulitan dalam menentukan tools yang paling sesuai dengan kebutuhan pembelajaran. Penelitian ini bertujuan untuk menganalisis dan menghasilkan rekomendasi pemanfaatan AI menggunakan Sistem Pendukung Keputusan (SPK) berbasis metode Analytical Hierarchy Process (AHP) dan Simple Additive Weighting (SAW). Metode AHP digunakan untuk menentukan bobot kriteria berdasarkan tingkat kepentingannya, sedangkan metode SAW digunakan untuk melakukan perangkingan alternatif tools AI. Penelitian ini melibatkan guru di SDN 15 Padang Genting dalam proses identifikasi kriteria dan penilaian alternatif. Hasil penelitian menunjukkan bahwa model SPK mampu menghasilkan rekomendasi tools AI yang sesuai dengan kebutuhan pengguna berdasarkan kriteria yang telah ditentukan. Pendekatan ini memberikan kontribusi dalam mendukung pengambilan keputusan yang lebih objektif dan sistematis dalam pemanfaatan AI untuk penyusunan bahan ajar Bahasa Inggris di sekolah dasar.
Kata kunci: analisis proses hierarki; bahan ajar; kecerdasan buatan; sistem pendukung keputusan; simple additive weighting.
Abstract:This study aimed to compare the performance of machine learning algorithms and user experience in predicting students’ academic achievement. The research is motivated by the need for prediction systems that are not only…
y highly accurate but also easily interpretable by users. The proposed methodology involved the implementation of two algorithms, namely Decision Tree and Random Forest, using an academic dataset that included grade point average, attendance, and assessment scores. Model performance was evaluated using accuracy, precision, recall, and F1-score, while user experience was assessed through the System Usability Scale (SUS) based on a simple user interface. The findings revealed that Random Forest achieved higher predictive accuracy, whereas Decision Tree provided better interpretability and ease of understanding for users. These results indicated a trade-off between model performance and user experience, suggesting that algorithm selection should consider both aspects in order to develop an effective and user-friendly academic prediction system
Abstract:Abstract: The use of QR Codes in academic settings has increased with the digitization of attendance systems, but it has also introduced potential abuse in the form of quishing attacks (QR phishing). Previous studies have…
e mainly focused on user behavior, while forensic analysis of digital artifacts as evidence is still limited. This study aims to conduct a forensic analysis of browser artifacts resulting from interactions with dangerous QR Codes at Aisyiyah University Yogyakarta using the framework of the National Justice Institute (NIJ). Six investigation parameters are defined: domain identification, endpoint identification, identification of supporting resources, visualization of image artifacts, timestamp correlation, and HTML reconstruction. Data is obtained from the Google Chrome profile directory and analyzed using Autopsy, focusing on Web Cache, Browser History, and Cookies artifacts. The results showed that five parameters were successfully identified with an investigation success rate of 83.3%, while HTML reconstruction could not be fully achieved due to cache limitations. These findings show that Web Cache artifacts provide evidentiary value in the forensic investigation of QR Code-based attacks. Future research should focus on improving full-page reconstruction techniques.
Keywords: browser forensics; digital artifacts; NIJ; quishing; Web Cache
Abstrak: Penggunaan Kode QR di lingkungan akademik telah meningkat seiring dengan digitalisasi sistem absensi, tetapi juga menimbulkan potensi penyalahgunaan dalam bentuk serangan phishing (QR phishing). Studi sebelumnya sebagian besar berfokus pada perilaku pengguna, sementara analisis forensik artefak digital sebagai bukti masih terbatas. Studi ini bertujuan untuk melakukan analisis forensik artefak browser yang dihasilkan dari interaksi dengan Kode QR berbahaya di Universitas 'Aisyiyah Yogyakarta menggunakan kerangka kerja Lembaga Kehakiman Nasional (NIJ). Enam parameter investigasi didefinisikan: identifikasi domain, identifikasi titik akhir, identifikasi sumber daya pendukung, visualisasi artefak gambar, korelasi stempel waktu, dan rekonstruksi HTML. Data diperoleh dari direktori profil Google Chrome dan dianalisis menggunakan Autopsy, dengan fokus pada artefak Cache Web, Riwayat Browser, dan Cookie. Hasil menunjukkan bahwa lima parameter berhasil diidentifikasi dengan tingkat keberhasilan investigasi sebesar 83,3%, sementara rekonstruksi HTML tidak dapat sepenuhnya dicapai karena keterbatasan cache. Temuan ini menunjukkan bahwa artefak Cache Web memberikan nilai bukti dalam investigasi forensik serangan berbasis Kode QR. Penelitian selanjutnya harus fokus pada peningkatan teknik rekonstruksi halaman penuh.
Kata kunci: forensik peramban; artefak digital; NIJ; quishing; web cache