Crime is an action which is considered as a violation of law and can harm others. Nowadays, crimes has increased with erratic patterns. Therefore, crime prevention is necessary since it will occur based on the historical data. Data mining is a technique that can be used to predict crimes that will occur. According to the previous researches, data mining techniques have several methods that can be used to predict crimes by utilizing the data of crimes that have occurred. Hence, it is necessary to conduct a comparative analysis of classification algorithms in order to obtain accurate prediction results based on the crime data in Sleman regency. The classification algorithms analyzed in this study were k-NN, Naive Bayes, and Decision Tree. Based on the three algorithms, the accuracy of k-NN with k = 5 was 57.88 percent, with k = 10 was 59.49 percent, with k = 15 is 59.38 percent, with k = 20 was 60.18 percent, and with k = 25 was 61.57 percent. Meanwhile, for the Naive Bayes algorithm, the accuracy reached 65.59 percent, and the Decision Tree algorithm reached 60.23 percent. In conclusion, the algorithm with the highest accuracy was owned by Naive Bayes.
This study aims to analyze the work posture of employees by using Rapid Entire Body Assessment (REBA) and Rapid Upper Limb Assessment (RULA) methods. In this study, the angle of the employee was calculated, and the results showed that on the body part B, the angle of the back movement is 77º flexion, the neck is 18º extension, and the leg is 39º, while the leg is not uniformly supported. One of the body parts, such as the upper arm is formed an angle of 65 ° flexion, the forearm is 13 ° flexion, the wrist is 0 ° flexion, and the wrist is in the intermediate range of rotation. Based on the results of RULA, a grand score is 7, categorized as Action level 4. Meanwhile, based on the results of REBA, the grand score obtained is 11, and also categorized as Action level 4. Based on the calculation of work posture using RULA and REBA methods, it revealed that the operator’s work posture has a high-level and dangerous risk. Therefore, the operator needs to immediately improve his work posture. In addition, due to the lifting position that was started with no squatting position, it causes waist injures, since it becomes the lift’s pedestal.
Data dari BPS menunjukkan masih sangat sedikit usaha yang memanfaatkan pemasaran online. Berdasarkan wawancara singkat dengan para pelaku usaha anggota OK oCE ADMA diketahui bahwa banyak UMKM yang terdampak selama pandemi COVID-19. Penjualan mereka mengalami penurunan selama pandemi berlangsung, karena mereka tidak dapat membuka usaha secara offline akibat adanya pembatasan sosial berskala besar. Selama ini usaha yang mereka jalan mayoritas masih mengandalkan pemasaran secara offline. Penggunaan media sosial sebagai sarana promosi pun belum dimaksimalkan dengan baik. Metode yang digunakan adalah penyuluhan sekaligus praktek pembuatan Whatsapp Bisnis. Dari hasil penyuluhan yang dilaksanakan oleh pengabdi, pelaku bisnis telah memiliki Whatsapp Bisnis bagi usaha mereka masing-masing. Namun pelaku bisnis perlu melengkapi pembuatan katalog untuk sarana pemasaran online produk mereka
There is data of students who experience Drop Out which raises the curiosity in IST AKPRIND's industrial engineering study program on students' graduation patterns. It is necessary to have research on how to classify the data held by industrial engineering study programs in order to obtain students' graduation patterns as evaluation material in the administration of study programs. This study also produced a design to set the goals of Educational Data Mining, this case as a student modeling that would be achieved by predicting using the Decision Tree method. The final results showed a mismatch between the general information data passed and the drop out of the rule obtained using the decision tree algorithm in the Rapidminer software which is shown by an accuracy of 95.83%. This value indicates that there is a match between the prediction of student identity data with the rule obtained using the decision tree algorithm.
Ibu-Ibu PKK merupakan pilar utama penjaga kesehatan keluarga. Salah satu kegiatan PKK yang ada adalah kegiatan yang dilakukan setiap bulan oleh Ibu-Ibu PKK Kalijeruk II yang ada di Widodomartani, Ngemplak, Sleman, Daerah Istimewa Yogyakarta. Ibu-ibu tersebut harus bekerja keras dalam menjaga kesehatan keluarga saat pandemi COVID-19 mulai berkembang di provinsi tersebut. Oleh karena itu, tim dosen IST AKPRIND mengadakan penyuluhan tentang pencahayaan dan ventilasi udara di dalam rumah agar anggota keluarga mereka tetap sehat, produktif, dan dapat bekerja. Kegiatan penyuluhan tersebut dilakukan dengan pemberian handout materi dan penyampaian materi oleh tim dosen tersebut, serta sesi tanya jawab untuk memperdalam pemahaman materi. Kegiatan tersebut dilakukan pada bulan Maret 2020 yang dihadiri oleh 36 peserta di rumah Ibu Kepala Dukuh Kalijeruk II. Kegiatan ini dapat meningkatkan pengetahuan ibu-ibu tersebut untuk merancang pencahayaan dan ventilasi udara yang baik di dalam rumah serta memberikan wawasan kepada mereka untuk menamam tanaman buah dan sayur di sekitar rumah untuk menjaga ketahanan pangan dan ekonomi keluarga.
CV. Pine Bag’s Specialist is a business engaged in the manufacturing of various types of bags. One of the bags made in the form of a backpack. Parachute fabric is the main raw material for making backpacks. Uncertain demand causes a lot of accumulation (over stock) of raw materials in the storage area, so we need a method of supporting raw material inventory control to determine the optimal order. The research objective determines the optimal ordering of raw materials using variable raw material demand, raw material inventory variables and ordering variables in January the first week to March the fourth week. The Fuzzy Mamdani method used in this study because it has a flexible nature and can overcome the problem of uncertainty. The data processing of the Fuzzy Mamdani method carried out in several stages (a) the formation of the Fuzzy set, (b) the application of the implication function, (c) the composition of the rules, (d) Defuzzification. Defuzzification in research uses the centroid method. The results of Fuzzy Mamdani's manual calculation in January of the first week with input of raw material demand of 666 meters and 126 meters of inventory resulted in an optimal prediction of ordering raw materials of 876 meters. Calculations for January the second week to March the fourth week are performed with the help of the Matlab R2013a Fuzzy Toolbox software. The results of prediction data evaluation on the number of raw material orders Fuzzy Mamdani with actual data on the raw material number ordering CV. Pine Bag’s Specialist, it is known that the average absolute error (MAE) is 193.8 meters with an average percentage of absolute error (MAPE) of 22%. So, it is said that the level of accuracy of predictions is reasonable. Future research is expected in the Fuzzy Mamdani method can be used more than two inputs and one output and the addition of linguistic variables. Combine the Fuzzy Mamdani method with other raw material inventory control methods so that the results obtained are getting better.
Untuk dapat bertahan di era industri 4.0 dan masa pandemi, sektor Usaha Mikro Kecil dan Menengah (UMKM) harus kreatif dan go online yaitu menggunakan teknologi digital dalam mengembangkan bisnisnya terutama pemasaran. Pemasaran dapat dilakukan melalui media sosial seperti Whatsapp, Facebook dan Instagram. Dengan demikian, diperlukan strategi pemasaran yang lebih baik dengan memanfaatkan media sosial agar jangkauannya lebih luas dan mengurangi aktivitas di luar rumah. Pelatihan ini dilakukan untuk fokus pada strategi pemasaran melalui marketplace di Facebook. Dipilihnya Facebook karena pengguna Facebook merupakan pengguna media sosial terbanyak. Peserta pelatihan ini adalah Palaku UMKM yang tergabung dalam OK OCE Yogyakarta. Pelatihan ini menggunakan metode ceramah dan praktik langsung menggunakan gadget masing-masing. Untuk peserta yang belum memiliki akun facebook, peserta dibimbing membuat facebook kemudian membuat iklan produk masing-masing di facebook marketplace. Setelah mengikuti pelatihan, kemampuan pelaku UMKM OK OCE dalam melakukan promosi meningkat. Sebanyak 100% peserta menyatakan akan melakukan promosi melalui facebook marketplace.
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