Online lecture is a distance learning system that utilizes information technology in its implementation. Although it has been agreed, this lecture system has caused controversy. Not infrequently online lectures are considered to bring a variety of new obstacles in lectures, and not a few also consider that online lectures are the most appropriate solution to continue to run lecture activities in the midst of alarming pandemic conditions. In response to this policy, many people expressed various kinds of opinions and views on the implementation of online lectures which are generally stated on social media, one of which is through Twitter. Sentiment analysis is a branch of the science of machine learning that is carried out to obtain useful information or new knowledge by extracting, understanding, and processing text data automatically. Several methods are widely used by researchers to classify sentiment analysis datasets including K-Nearest Neighbor (K-NN). K-NN will be adapted to classify online lecture datasets because K-NN can produce good accuracy on a large number of data. The presence of feature selection also helps machine learning in improving its performance. The purpose of this study was to determine student sentiment toward online lectures and to determine the level of accuracy of the combination of K-NN with various feature selections. Based on 780 tweets data, a classification of 394 positive sentiments, 320 negative sentiments, and 39 neutral sentiments was obtained. So, the results of student opinions are on POSITIVE sentiments. The accuracy result of the K-NN Algorithm was 56% and the accuracy of the K-NN Algorithm + Forward Selection was 51%, the accuracy of the KNN Algorithm + Adabost was 54%, and the accuracy of the KNN Algorithm + Genetic Algorithm was 55%.
Perpustakaan SMK S Ismailiyah sudah berkembang cukup baik secara fisik, akan tetapi tidak adanya sumber daya manusia yang memiliki kompetensi dalam mengelola perpustakaan dan belum terotomatisasinya proses manajemen perustakaan di sekolah tersebut. Ketiadaan SDM dan manajemen yang baik pada SMK S Ismailiyah menimbulkan permasalahan. Melihat permasalahan yang dihadapi oleh perpustakaan SMK S Ismailiyah, maka sosialiasi; penerapan; dan pelatihan Sistem Informasi Perpustakaan sangat diperlukan. Kegiatan pengabdian ini dilakukan dengan cara memberikan sosialiasi kepada pemangku kebijakan, kemudian memberikan pelatihan kepada pustakawan. Pelatihan kepada pustakawan diberikan dengan ceramah dan melakukan langsung melakukan praktik penggunaan SliMS.Dengan adanya penerapan sistem informasi perpustakaan dan pelatihan pustakawan ini dapat mengoperasikan SliMS untuk mengoptimalisasi pelayanan perpustakaan.
Kekurangan gizi atau yang biasa disebut malnutrisi merupakan salah satu masalah kesehatan yang cukup sering menimpa balita-balita di Indonesia. Kepedulian orang tua dan aparat desa (dalam hal ini petugas Pusat Pelayanan Kesehatan Masyarakat – PUSKESMAS) untuk memantau gizi balita sangat diperlukan. Penelitian yang dilakukan mencoba untuk melakukan pengelompokan 15 balita di Kab. Rokan Hulu kedalam 2 cluster status gizi. Pengelompokan status gizi balita di Kab. Rokan Hulu menggunakan metode K-Means dilakukan melalui beberapa tahapan yaitu : penentuan tujuan bisnis, pengumpulan data 15 balita di Kab. Rokan Hulu, pengelompokan status gizi balita ke dalam 2 cluster yaitu cluster 1 - gizi baik; cluster 2 -Gizi Baik, pengelompokan status gizi balita menggunakan algoritma K-Means, dan yang terakhir melakukan pengujian dengan membandingkan hasil pengelompokan algoritma K-means dan Rapid Miner. Kata kunci : Data Mining , Clustering , K -Means
Salah satu komoditas perkebunan yang berkembang dengan pesat di Indonesia adalah Kelapa sawit (Elaeis guineensis). Penurunan produksi Kelapa sawit terjadi pada saat kelapa sawit telah mencapai usia 25 tahun sehingga perlu dilakukan peremajaan. Permasalahan utama yang dihadapi ketika melakukan peremajaan kebun kelapa sawit adalah adanya jeda waktu yang cukup panjang pada proses pertumbuhan kelapa sawit. Permasalahan tersebut menjadikan petani tidak akan lama memperoleh hasil dari kebun kelapa sawit. Lahan sawit pada masa peremajaan tersebut sebenarnya bisa dimanfaatkan dengan pola polikultur (tumpang sari). Penentuan jenis tanaman yang sesuai ditanam dengan pola polikultur pada kebun kelapa sawit mesti dipilih secara benar. Pemilihan yang benar bertujuan agar menghindari kegagalan dalam pola tumpang sari dan mendapatkan hasil yang maksimal. Karena pentingnya proses pemilihan tanaman dengan pola tumpang sari pada proses peremajaan kebun kelapa sawit, maka perlu membuat penelitian untuk menentukan tanaman dengan pola tumpang sari pada proses peremajaan kebun kelapa sawit berdasarkan standar kriteria yang yang terdapat pada beberapa penelitian sebelumnya dengan metode weighted product. Metode WP dipilih karena kecepatan dan ketepatannya dalam pengambilan sebuah keputusan, dan sesuai dengan kriteria yang ditetapkan atau hampir seperti kriteria yang ditetapkan. Pada penelitian ini, hasil urutan alternatif dimulai dari yang terbaik adalah ubi, pisang, cabe merah, jagung dan kedelai.
Indonesian children have been being victims of bullying in schools; they have physical and mental health problems. Being a victim of bullying starts from often displaying low assertive behavior. This is one of the many causes of bullying. The research objective is to develop a counseling model that is able to improve the assertive behavior of bullying victims. The research method used is Research and Development, the determination of the sample using purposive sampling, using assertive behavior scale instruments. Based on the results of product trials through experimental research, which is to provide behavioral counseling services with assertive training techniques through role-playing games, this counseling service is proven to increase assertive behavior in victims of bullying. This can be seen before given counseling services (pretest) and after given counseling services (post-test), supported by the results of the difference test, it can be seen from an exact Sig (2-tailed) of 0.004, which means <2.178. This indicates that the developed behavioral counseling model with assertive training techniques through role-playing games is evidently effective in increasing the assertive behavior of bullying victims.
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