Adaptive and Lightweight Abnormal Node Detection via Biological Immune Game in Mobile Multimedia Networks

Considering the contradiction between limited node resources and high detection costs in mobile multimedia networks, an adaptive and lightweight abnormal node detection algorithm based on artificial immunity and game theory is proposed in order to balance the trade-off between network security and detection overhead. The algorithm can adapt to the highly dynamic mobile multimedia networking environment with a large number of heterogeneous nodes and multi-source big data. Specifically, the heterogeneous problem of nodes is solved based on the non-specificity of an immune algorithm. A niche strategy is used to identify dangerous areas, and antibody division generates an antibody library that can be updated online, so as to realize the dynamic detection of the abnormal behavior of nodes. Moreover, the priority of node recovery for abnormal nodes is decided through a game between nodes without causing excessive resource consumption for security detection. The results of comparative experiments show that the proposed algorithm has a relatively high detection rate and a low false-positive rate, can effectively reduce consumption time, and has good level of adaptability under the condition of dynamic nodes.

MOBILE APPLICATION MULTIMEDIA INTERAKTIF FIQIH ZAKAT PADA Mts GENERASI EMAS

Madrasah Tsanawiyah (MTs) Generasi Emas merupakan kelanjutan dari jenjang pendidikan Sekolah Dasar Anak Emas, yang mana awal berdirinya karena desakkan dari orang tua peserta didik yang menginginkan pendidikan putra-putrinya berkesinambungan di Anak Emas. Salah satu mata pelajaran agama yang ada di MTs Generasi Emas adalah fiqih khususnya zakat. Pembelajaran Fiqih yang berlangsung di MTs Generasi Emas selama ini dengan cara penyampaian materi oleh guru fiqih dan siswa siswi mencatat apa yang telah disampaikan. Selain itu siswa siswi tidak memiliki modul fiqih untuk dijadikan sebuah acuan belajar diluar jam belajar mengajar. Hal ini membuat siswa siswi merasa kesulitan menerima materi yang diberikan oleh guru dan minat belajar pun akhirnya dapat berkurang. Maka dalam penelitian ini telah dibangun sebuah aplikasi mobile multimedia interaktif fiqih zakat yang dapat digunakan sebagai fasilitas pembelajaran fiqih zakat oleh siswa siswi MTs Generasi Emas. Aplikasi ini dibangun dengan menerapkan metode MDLC. Aplikasi ini di desain menggunakan Corel Draw X7 dan Adobe Captivate 2019 dengan pengujian aplikasi menggunakan Black Box Testing dan Kuesioner Tertutup, hasil dari pengujian Black Box Testing dan hasil pengujian Kuesioner menunjukkan sebesar 92,4% sudah sesuai desain, konten dan kebermanfaatannya

Pengembangan Mobile Multimedia Learning Mata Pelajaran Pendidikan Jasmani Olahraga Dan Kesehatan Materi Kombinasi Gerak Berjalan Berlari Dan Meloncat Untuk Siswa Kelas III Di Sekolah Dasar Insan Mulya Driyorejo Kabupten Gresik

Penelitian ini merupakan Penelitian dan Pengembangan yang bertujuan untuk menghasilkan produk media pembelajaran pada mata pelajaran pendidikan jasmani olahraga dan kesehatan kelas III Sekolah Dasar Insan Mulya Driyorejo Kabupaten Gresik. Masalah dalam penelitian ini dirumuskan sebagai berikut: (1) Bagaimana proses pengembangan mobile multimedia learning mata pelajaran pendidikan jasmani olahraga dan kesehatan materi kombinasi berjalan berlari dan meloncat untuk siswa kelas III di di Sekolah Dasar Insan Mulya Driyorejo Kabupaten Gresik. (2) Apakah media mobile multimedia learning mata pelajaran pendidikan jasmani olahraga dan kesehatan materi kombinasi berjalan berlari dan meloncat layak digunakan untuk siswa kelas III di Sekolah Dasar Insan Mulya Driyorejo. Penelitian dan Pengembangan ini mengacu pada langkah-langkah model pengengembangan Lee & Owens, yang meliputi: (1) Assessment/analysis (penilaian/analisis), (2) Design (desain), (3) Development (Pengembangan Produk), (4) Implementation (implementasi), (5) Evluation (evaluasi). Sampel penelitian dan pengembangan ini terdiri dari dua ahli materi dan dua ahli media. Analisis pada penelitian ini menggunakan analisis deskriptif kuantitatif. Data dalam penelitian ini diambil melalui wawancara, observasi, dan kuesioner. Berdasarkan hasil pengolahan data diperoleh hasil uji validitas dari ahli materi sebesar 93,1% dan hasil validitas ahli media dari segi edukatif sebesar 100%, dari segi kualitas teknis sebesar 95,31% dan uji validitas ahli media secara keseluruhan sebesar 96,25%, sehingga dapat disimpulkan bahwa multimedia pembelajaran sangat layak untuk digunakan.

Android-based Mobile Multimedia Application Development Training

<p align="center">Covid-19 demands the use of technology as an online learning media tool. The technology that becomes a low-cost developer is the Android Technology operating system. The main target of this community service activity is the 3rd &amp; 5th semester Computer System Study Program students at the Faculty of Science and Technology at the Panca Budi Development University in using Android technology, where learning about Android has been carried out but not maximized in building a Mobile Application. The method used is to provide training and demonstrations in making Multimedia Applications using Android Studio with online media support in the form of Zoom, YouTube, and Google Drive links. The results of the feedback response to material questions submitted by the resource person were 67% very good, participant responses to the material presented were 41% good, the relationship between material and participant needs was 59% very good, the relationship between material and applications that could be absorbed by participants was 54% very good, the linkage of the material with needs is 42% good, the presentation technique of the presenter is 56% very good, the time spent by the presenter is 44% giving a good response, the clarity of the material is 59% clear, the interest of the participants is 47% good, and overall satisfaction level of 51% gave a satisfied response to the training activities.</p>

Penggunaan Aplikasi Mudah Alih Multimedia Interaktif untuk Meningkatkan Pemikiran Algebra Pecahan Dalam Kalangan Murid-Murid Masalah Pembelajaran

Penggunaan aplikasi mobile multimedia dalam pendidikan kini mendapat perhatian semua pihak dan menghasilkan interaksi hubungan murid dan guru. Penggunaan aplikasi mudah alih dalam pengajaran dan pembelajaran dipercayai dapat menyelesaikan banyak masalah yang melibatkan matematik dan mengubah persepsi murid terhadap pemahaman algebra pecahan yang dianggap rumit dan membosankan. Kesukaran ini lebih terkesan kepada murid yang mempunyai masalah pembelajaran berbanding dengan murid biasa. Rasional kajian untuk meneroka penggunaan aplikasi mobile multimedia interaktif berasaskan permainan (P-PKSSMPK) sebagai alat bantu pengajaran untuk meningkatkan kemahiran pemikiran algebra pecahan dan pencapaian murid masalah pembelajaran dalam topik pecahan. Aplikasi mobile P-KSSMPK digunakan sebagai bahan bantu pengajaran bagi memudahkan murid memahami kemahiran pembelajaran pecahan. Penyelidikan ini melibatkan penguasaan kemahiran pemikiran algebra pecahan dan pemahaman dalam pengajaran dan pembelajaran topik pecahan bagi murid masalah pembelajaran. Objektif kajian yang pertama ialah merekabentuk dan membangunkan aplikasi mobile multimedia interaktif dengan menggunakan model Prototaip Pantas (menilai, menentukan objektif, mereka bentuk dan membangunkan prototaip, pelaksanaan prototaip, penilaian dan pemurnian). Objektif kajian kedua pula, mengkaji kesan aplikasi mobile P-KSSMPK melalui sembilan adengan pengajaran dalam membantu meningkatkan pemahaman dan penguasaan kemahiran pemikiran algebra pecahan bagi murid masalah pembelajaran. Reka bentuk kuasi-eksperimen digunakan ke atas kumpulan kawalan dan kumpulan rawatan di mana setiap responden diberi ujian pra, rawatan, dan ujian pasca. Kajian ini melibatkan 152 orang murid masalah pembelajaran dari sepuluh sekolah berbeza di daerah kinta utara di Perak. Dapatan kajian akhir mendapati bahawa pembelajaran menerusi aplikasi mobile P-KSSMPK berjaya mempertingkatkan tahap penguasaan kemahiran dan pemahaman pecahan. Min keputusan pencapaian ujian pra adalah 44.59 (sisihan piawai: 4.233) bagi kumpulan rawatan manakala min purata bagi ujian pasca meningkat sebanyak 65.88 (sisihan piawai: 21.520) bagi kumpulan rawatan. Justeru, kajian terhadap pembelajaran topik pecahan perlu diteruskan dengan melibatkan sampel kajian yang lebih besar supaya penglibatan murid dalam aktiviti pembelajaran pecahan dapat dipertingkatkan.

Collaborative Problem-Solving Based on Mobile Multimedia

The development of mobile technology has an important role to play in achieving 21st-century skills. Collaborative skills and problem-solving are seen as fundamental skills for achieving 21st-century skills as a whole. This study aims to develop collaborative problem-solving based on mobile multimedia (CPMM) to achieve student collaborative and problem-solving skills. Multimedia development life cycle (MDLC) is used as a research method to develop CPMM. The CPMM was developed by involving 100 students at the Universitas Muhammadiyah Surabaya, Indonesia. The CPMM development result consisted of three main features. The first feature was the homepage which was used to show student profiles and progress in the course. The second feature was collaborative to become a forum for students to discuss and interact in multi-way mobile ways to solve problems. The third feature was evaluation as tasks from a lecturer to individual students to solve problems. In addition, the study results showed that CPMM was valid and effective for improving students' collaborative and problem-solving skills. This study recommends that CPMM can be used as an essential study and the basis for lecturers and practitioners to develop 21st-century student skills as a whole (not only collaborative and problem-solving skills) to produce graduates who are ready to face the revolutionary era 4.0.

Design of a discrete сosine transformation processor for image compression systems on a losless-to-lossy circuit

Today, mobile multimedia systems that use the H.261 / 3/4/5, MPEG-1/2/4 and JPEG standards for encoding / decoding video, audio and images are widely spread [1–4]. The core of these standards is the discrete cosine transform (DCT) of I, II, III ... VIII types [DCT]. Wide support in a huge number of multimedia applications of the JPEG format by circuitry and software solutions and the need for image coding according to the L2L scheme determines the relevance of the problem of creating a decorrelated transformation based on DCT and methods for rapid prototyping of processors for computing an integer DCT on programmable systems on a FPGA chip. At the same time, such characteristics as structural regularity, modularity, high computational parallelism, low latency and power consumption are taken into account. Direct and inverse transformation should be carried out according to the “whole-to-whole” processing scheme with preservation of the perfective reconstruction of the original image (the coefficients are represented by integer or binary rational numbers; the number of multiplication operations is minimal, if possible, they are excluded from the algorithm). The wellknown integer DCTs (BinDCT, IntDCT) do not give a complete reversible bit to bit conversion. To encode an image according to the L2L scheme, the decorrelated transform must be reversible and implemented in integer arithmetic, i. e. the conversion would follow an “integer-to-integer” processing scheme with a minimum number of rounding operations affecting the compactness of energy in equivalent conversion subbands. This article shows how, on the basis of integer forward and inverse DCTs, to create a new universal architecture of decorrelated transform on FPGAs for transformational image coding systems that operate on the principle of “lossless-to-lossy” (L2L), and to obtain the best experimental results for objective and subjective performance compared to comparable compression systems.