UIN (Universitas Islam Negeri) Sunan Kalijaga, Yogyakarta: E-Journal Fakultas Sains dan Teknologi
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Pembatasan Akses Menggunakan MAC Address dengan Metode Access Control List
No full textThe Cangehgar Cyber Command Center of the 14th Arhanud/ PWY Battalion from Cirebon City is one of the offices with IT equipment to assist the job. The servers, like the office PCs, are connected via the local network. Due to the risk of leaking secret data from within, network security concerns must be handled so that unauthorized users cannot mistakenly access the server. It seeks to limit access when there are administrative customers and employees in each room by utilizing the access control list approach using a MAC address. Access to the server is restricted to the administrator\u27s computer, while access to the employee\u27s PC is disallowed. Then the questionnaire was distributed to find out the respondent\u27s assessment of the access control list. According to the results of the study on security indicators, access control lists containing MAC addresses are useful in limiting access to server computers
Optimasi Seleksi Fitur Information Gain pada Algoritma Naïve Bayes dan K-Nearest Neighbor
No full textThere was an increase in the number of late payments of tuition fees by 3,018 from a total of 5,535 students at the end of 2020. This study uses the Python library which requires data to be of numeric type, so it requires data transformation according to the type of data in the study, data that has a scale is transformed using an ordinal encoder, and data that does not have a scale is transformed using one-hot encoding. The purpose of this study was to evaluate the performance of the Naïve Bayes algorithm and K-Nearest Neighbor with a confusion matrix in predicting late payment of tuition fees at UMKT. The dataset used in this study was sourced from the financial administration bureau as many as 12,408 data with a distribution of 90:10. Based on the results of the calculation of the selection of information gain features, the best 4 attributes that influence the research are obtained, namely faculty, study program, class, and gender. The results of the evaluation of the confusion matrix that have the best performance using the Naïve Bayes with information gain algorithm obtain an accuracy of 55.19%, while the K-Nearest Neighbor with information gain only obtains an accuracy of 50.76%. Based on the accuracy results obtained in the prediction of late payment of tuition fees by using attributes derived from information gain, it influences increasing the accuracy of Naïve Bayes, but the use of the information gain attribute on the K-Nearest Neighbor algorithm makes the accuracy obtained decrease
Pelatihan Reference Manager, Management Cite on Your Research, Tools: Mendeley, Zotero, End Note
No full textPenulisan karya ilmiah yang yang memerlukan tata cara penulisan yang sesuai dengan kaedah-kaidah penulisan yang benar sesuai dengan sitasi sehingga tidak menimbulkan plagiasi merupakan hal yang wajib dipahami oleh semua peneliti yang melakukan karya ilmiah. Tools atau alat yang tepat dalam mengorganisir kebutuhan ini sangat membantu peneliti agar sesuai dengan ketentuan yang distandarkan oleh masing-masing jurnal, karya tulis ilmiah dan prosiding. Kegiatan Webinar dan Sharing Seassion ini merupakan proses pendampingan yang berorientasikan pada tata laksana secara impelementasi sehigga mahasiswa khusus nya jenjang sarjana dapat melakukan penulisan karya ilmiah nya dengan benar sesuai kaedah-kaedah penulisan karya ilmiah dengan mensitasi karya peneliti lain tanpa melakukan plagiasi atau mengutip tanpa menyertakan sumber referensinya. Pada pelaksaan kegiatan ini dilakukan secara online atau daring dikarenakan kondisi yang masih belum memungkinkan dilakukan secara tatap muka dan sebagai kepatuhan dalam menjalankan protokol kesehatan dari virus Corona (Covid-19). Dari hasil pemaparan materi, diskusi dan hasil implementasi secara langsung dapat disimpulkan sesuai dengan yang diharapkan dengan peserta 71.6% adalah jenjang mahasiswa 28.4% jenjang pasca sarjana dengan demikian mahasiswa jenjang sarjana dapat mengambil manfaat untuk menyusun karya ilmiah skripsi nya dan pasca sarjana dapat lebih mendalam memahami dalam lakukan sitasi pada tesis dan jurnal yang dituju untuk publikasi.
[Writing scientific papers that require writing procedures that are in accordance with the correct writing rules in accordance with citations so as not to cause plagiarism is something that must be understood by all researchers who do scientific work. The right tools or tools in organizing these needs really help researchers to comply with the provisions standardized by each journal, scientific paper, and proceedings. This Webinar and Sharing Session activity is an implementation-oriented mentoring process so that undergraduate students in particular can write their scientific papers correctly according to the rules of scientific writing by citing the work of other researchers without plagiarizing or quoting without including sources. the reference. The implementation of this activity is carried out online or online due to conditions that are still not possible to do face-to-face and as compliance in carrying out health protocols from the Coronavirus (Covid-19). From the results of the material presentation, discussion, and direct implementation results, it can be concluded as expected with 71.6% of participants being 28.4% postgraduate level students so that undergraduate students can take advantage to compose their scientific thesis and postgraduate students can understand more deeply in doing citations on theses and journals intended for publication.
ANALISIS TINGKAT KEMIRIPAN SUARA SEBAGAI BUKTI DIGITAL DENGAN MENGGUNAKAN TEKNIK AUDIO FORENSIK
No full textKejahatan penipuan menempati posisi teratas pada tahun 2019 dengan salah satu media yang digunakan ialah telepon seluler. Pada tahun tersebut di Indonesia mendapat sebanyak 1.617 laporan terkait penipuan pada situs patroli siber. Salah satunya ialah penipuan melalui panggilan telepon. Hal ini menyebabkan korban penipuan tidak mengetahui atas siapa orang dibalik suara panggilan tersebut. Sehingga dibutuhkan sebuah metode yang dapat mengetahui tingkat kemiripan suara yang dimiliki pelaku penipuan maupun menyelesaikan permasalahan yang bersangkutan dengan audio/suara. Audio forensik merupakan salah satu cabang bidang ilmu digital forensik untuk menganalisa barang bukti audio ataupun rekaman suara dengan empat tahapan, diantaranya ialah acquisition, audio enhancement, decoding dan voice recognition. Pada penelitian ini dilakukan analisis terhadap nilai pitch dan formant pada tahap voice recognition. Hasil dari analisis pitch dan formant menunjukkan bahwa subyek ke dua mempunyai tingkat kemiripan lebih tinggi terhadap suara yang barang bukti. Dengan perbandingan ketiga subyek pada analisis formant ialah subyek 1 dan subyek 2 mempunyai kemiripan suara sebanyak 2 kata dan subyek 3 mempunyai kemiripan 3 kata sedangkan hasil dari analisis pitch ialah subyek 1 mempunyai kemiripan suara sebanyak 16 kata, subyek 2 mempunyai kemiripan suara sebanyak 30 kata dan subyek 3 tidak memiliki kemiripan sama sekali
IMPLEMENTASI COSINE SIMILARITY DALAM ANALISIS INVESTIGASI CYBERBULLYING PADA TWITTER DENGAN FRAMEWORK NIST
No full textPengguna Twitter di Indonesia pada tahun 2021 tercatat mencapai 63,6% dari jumlah populasi dan menempati urutan ke-5 sosial media yang sering diakses oleh masyarakat Indonesia. Semakin tingginya tingkat pengguna Twitter memberi peluang bagi penggunanya untuk melakukan cybercrime seperti cyberbullying. Korban cyberbullying rentan terkena depresi dibandingkan dengan korban tindakan kekerasan verbal lainnya. Melihat dampak yang ditimbulkan maka diperlukan langkah-langkah untuk mengatasi cyberbullying dengan investigasi forensik untuk membuktikan dan menemukan bukti digital yang membantu menyelesaikan kasus cyberbullying yang marak terjadi di media sosial seperti pada Twitter, sehingga dapat diajukan sebagai bukti kuat, konkrit, serta dapat diproses di pengadilan. Tujuan dari penelitian ini untuk menemukan bukti digital dan mengidentifikasi tindakan cyberbullying pada fitur pesan grup Twitter dengan alur kerja NIST (National Institute of Standards and Technology). Penelitian ini berhasil mendapatkan bukti digital berupa teks percakapan pada smartphone korban yang diekstrak dengan tools MOBILEdit Forensic Express dan dianalisis dengan text processing, pembobotan term/kata, dan menerapkan formula cosine similarity untuk mengidentifikasi cyberbullying. Hasil penelitian menujukkan alur kerja NIST berhasil mengangkat barang bukti hingga pelaporan barang bukti. Metode cosine similarity berhasil mengidentifikasi kalimat yang terindikasi bullying dengan nilai yang berbeda, pelaku dengan nilai tertinggi mencapai 0,377, sedangkan pelaku dengan nilai terendah menyentuh angka 0,02 berdasarkan dengan percakapan terhadap query (kata kunci) bullying.
Kata kunci: digital forensik, cyberbullying, cosine similarity, nist, twitter
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Twitter users in Indonesia in 2021 are recorded at 63.6% of the total population and ranks 5th on social media that are often accessed by Indonesian people. The higher level of Twitter users provides opportunities for users to commit cybercrime such as cyberbullying. Victims of cyberbullying are more prone to depression than other victims of verbal abuse. Seeing the impact, it is necessary to take steps to overcome cyberbullying with forensic investigations to prove and find digital evidence that helps resolve cyberbullying cases that are rife on social media such as Twitter, so that it can be submitted as strong, concrete evidence, and can be processed in court. The purpose of this study was to find digital evidence and identify acts of cyberbullying on the Twitter direct message group with the NIST (National Institute of Standards and Technology) methodology. This study succeeded in obtaining digital evidence in the form of text conversations on the victim\u27s smartphone which was extracted with the MOBILEdit Forensic Express tool and analyzed by text processing, weighting terms/words, and applying the cosine similarity formula to identify cyberbullying. The results of the study show that the NIST has succeeded in raising evidence to reporting evidence. The cosine similarity method succeeded in identifying sentences that indicated bullying with different values, the perpetrator with the highest score reached 0.377, while the perpetrator with the lowest score touched 0.02 based on conversations about the bullying query (keyword).
Keywords: digital forensic, cyberbullying, cosine similarity, nist, twitte
ADSORPSI Hg DENGAN SILIKA GEL DARI ABU DASAR BATUBARA YANG DIMODIFIKASI DENGAN MERKAPTOBENZOTIAZOL (MBT)
No full textTelah dilakukan adsorpsi Hg (II) dengan silika gel dari abu dasar batubara yang dimodifikasi dengan merkaptobenzotiazol (MBT). Tujuan dari penelitian ini yaitu untuk mengetahui kesetimbangan dan kinetika adsorpsi Hg dengan adsorben silika gel dan silika gel-MBT. Sintesis silika gel dan silika gel-MBT dilakukan melalui beberapa tahap, yaitu pembuatan natrium silikat, pengikatan gugus MBT pada silika gel yang termodifikasi, pembentukan silika gel, adsorpsi silika gel dan silika gel-MBT terhadap logam Hg (II). Modifikasi silika dilakukan dengan cara impregnasi, yaitu proses memasukkan material tertentu ke dalam pori-pori pellet yang melibatkan interaksi fisika antara pori dengan material impregnan. Silika gel dan silika ge-lMBT yang diperoleh dikarakterisasi dengan spektrofotometer Infra-Merah. Kemampuan adsorpsi produk terhadap Hg (II) dianalisis dengan UV-Vis. Kesetimbangan adsorpsi Hg (II) oleh adsorben silika gel mengikuti model kesetimbangan Langmuir. Sedangkan adsorben silika gel-MBT diduga mengikuti model kesetimbangan Freundlich. Kinetika adsorpsi Hg (II) oleh adsorben silika gel dan silika gel-MBT diduga mengikuti model pseudo orde satu, yaitu adsorben silika gel memiliki laju reaksi yang lebih cepat dibandingkan adsorben silika gelMBT, akan tetapi adsorben silika gel-MBT memiliki daya adsorpsi yang lebih besar dibandingkan adsorben silika gel
ANALYSIS OF THE DETERMINANTS OF CONSUMER DECISIONS IN PURCHASING HALAL BEAUTY PRODUCTS
No full textHalal beauty products have now begun to attract the attention of the Muslim community in Indonesia, but it does not necessarily show that consumers of halal beauty products prioritize halal products, because there are other factors that can affect purchasing decisions. The purpose of this study is to determine the influence of product quality, halal label, and product price on the purchase decision of halal beauty products, which then based on these results, an evaluation of the level of awareness and concern of female students for halal is carried out. The data was collected by distributing questionnaires to students of University X. The respondents who filled out this research questionnaire were active students of University X who had bought halal beauty products of any brand. This research method is SEM-PLS analysis to predict the influence between independent variables on dependent variables, as well as descriptive analysis to determine the level of awareness and concern of female students for halal. The result of this study is that the three variables each have a positive and significant effect on purchasing decisions. Based on the results of the SEM-PLS pathway coefficient test, it is known that product quality has a greater influence than the halal factor (halal label) when female students decide to buy halal beauty products. Therefore, a further evaluation of the level of halal awareness and concern is carried out by conducting a descriptive analysis on each item of halal label indicators. Through this analysis, the results were obtained that 62.5% of the eight halal label indicator items were in the range of positive categories which showed that the level of halal awareness and concern of female students was high
TANTANGAN DAKWAH ISLAM DALAM DUNIA MAYA (STUDI KRITIS ATAS PEMANFAATAN INTERNET DI INDONESIA)
No full textThe development of the world (internet) does not always have a positive impact. The internet has many negative aspects. Many people use the internet as a reference in their study. There are many sites that want to do the process of liberalism by accident. In this paper, the researcher examines by collecting access in internet sites where there are facts that cyberspace occurs differences in thinking. There are sites supporting da\u27wah in the Islamic world and there are sites that oppose da\u27wah. This research was written because many people are still confused in finding internet sites to find references in order to practice Islamic teachings. registering sites using descriptive analysis method, the author finds that there are several scientists who prevent anti-Islamic syiar. In addition, the prevention process also causes other impacts, such as doubts in faith, wars of thought (ghazwul fikri) etc. Seeing the phenomenon that occurs, one of the efforts that can be done is to Seeing this phenomenon, one of the efforts that can be done by the preacher is to increase his writings in the media in order to build a correct and authoritative Islamic site
STUDI PATI SINGKONG SEBAGAI EDIBLE FILM DALAM UPAYA MENGOPTIMALKAN KEMASAN RAMAH LINGKUNGAN
No full textAbstrak. Bahan plastik yang banyak beredar kebanyakan berasal dari bahan sintetik yang tidak ramah lingkungan. Dibutuhkan waktu yang lama bagi mikroba untuk mendaur ulang sampah kemasan tersebut sehingga menyebabkan pencemaran lingkungan. Padahal sebagai seorang manusia hendaknya memiliki kesadaran penuh untuk menjaga kelestarian alam, seperti halnya dijelaskan dalam ayat Al-Qur’an surah Ar-Rum ayat:41. Hal ini menjadi teguran bagi manusia untuk tidak mencemari lingkungan. Salah satu langkah bijak yaitu dengan mengurangi pemakaian kemasan yang tidak ramah lingkungan atau mengganti kemasan lebih ramah lingkungan. Beberapa peneliti telah mengembangkan kemasan dari bahan-bahan terbarukan dan ekonomis. Salah satunya adalah plastik biodegradable dalam bentuk edible film. Edible film adalah lapisan tipis bersifat kontinyu yang terbuat dari bahan yang dimakan seperti protein, polisakarida, dan substansi hidrofobik berguna untuk melapisi bahan pangan (film). Metode yang digunakan dalam penelitian ini berupa kajian pustaka. Menurut Farham (2017), terdapat hasil terbaik pembuatan edible film dengan pati singkong diperoleh pada kombinasi berat pati 3,5 gram dan volume gliserol sebesar 1,75 mL. Hasil penelitian yang dilakukan Kawija (2017) menyatakan semakin besar jumlah pati singkong maka kekuatan tarik edible semakin tinggi. Hal ini dapat terjadi karena ikatan biopolimer pada gel pati singkong semakin kuat dengan semakin bertambahnya pati. Namun, Penggunaan pati singkong sebagai bahan baku pembuatan edible film menghasilkan edible yang kaku dan tidak elastis, maka digunakan plasticizer guna mengurangi kekakuan polimer sehingga diperoleh lapisan yang elastis dan fleksibel. Tujuan dari penelitian untuk mengetahui penggunaan singkong dalam pembuatan edible film dalam upaya mengurangi kemasan tidak ramah lingkungan.
Kata kunci: Edible Film, Pati Singkong, Plasticizer
Implementasi Algoritma K-Means Clustering Seleksi Siswa Berprestasi Berdasarkan Keaktifan dalam Proses Pembelajaran
No full textThe learning process through various interactions and learning experiences has a considerable influence on developing student activity to improve the quality of education. The teacher is the most important factor in determining the success of students in the implementation of the process. The development of the quality and activeness of students in learning is a basic element as a form of success in the learning process which of course not all students have a level of speed in understanding material. This is a concern for schools in improving the quality of education. The purpose of this study was to classify the level of activity of students at SMP ABC using the correlation between grades and the level of student activity who would be recommended to take part in competitions or prospective scholarship recipients. The data source that we used in this study came from the State Junior High School ABC which consists of several variables, including student attendance data, academic scores, psychomotor scores, and affective values. The method used in this research is the Clustering method with the K-means Algorithm. The results of this study can be grouped into 3 clusters including cluster 0 indicating active students as many as 30 students, cluster 1 showing inactive students as many as 8 students, and cluster 2 indicating less active students as many as 21 students