COMPARISON OF FEATURE SELECTION TO PERFORMANCE IMPROVEMENT OF K-NEAREST NEIGHBOR ALGORITHM IN DATA CLASSIFICATION

One of the most widely used data classification methods is the K-Nearest Neighbor (K-NN) algorithm. Classification of data in this method is carried out based on the calculation of the closest distance to the training data as much as the value of K from its neighbors. Then the new data class is determined using the most votes system from the number of K nearest neighbors. However, the performance of this method is still lower than other data classification methods. The cause is the use of the most voting system in determining new data classes and the influence of features less relevant to the dataset. This study compares several feature selection methods in the data set to see their effects on the performance of the K-NN algorithm in data classification. The feature selection methods in this research are Information gain, Gain ratio, and Gini index. The method was tested on the Water Quality dataset from the Kaggle Repository to see the most optimal feature selection method. The test results on the dataset show that the use of the feature selection method affects to increase the performance of the K-NN algorithm. The average increase in the accuracy value obtained from the value of K=1 to K=15 is the Information Gain increased by 1.17%, Gain ratio increased by 0.69%, and the Gini index increased by 1.19%. The highest accuracy value in the classification of the Water Quality dataset is 89.66% at K=13 with the Information Gain feature selection method

Arsitektur Rumah Betang (Radakng) Kampung Sahapm

Arsitektur dari suatu bangsa, pada suatu masa sering berbeda-beda, baik dalam hal bentuk maupun konsep-konsep yang melandasinya. Hal ini tentu disebabkan adanya perbedaan kebudayaan dari suatu masyarakat dengan masyarakat lainnya. Setiap suku bangsa biasanya akan menunjukkan identitas budayanya melalui benda-benda budaya yang mereka buat. Demikian halnya masyarakat Dayak Kanayatn memiliki ciri tersendiri dalam bentuk arsitektur bangunan khususnya bangunan rumah tinggal. Bentuk arsitektur masyarakat Dayak Kanayat'n yang tinggal di Desa Sahapm tercermin dalam bentuk Rumah Betang atau Rumah Panjang dan hingga kini masih dijaga dan dihuni oleh masyarakat. Bentuk rumah Betang juga menunjukkan hidup kebersamaan bagi penghuninya. Dalam Rumah panjang atau Rumah Betang mereka berinteraksi antara bilik yang satu dengan bilik yang lainnya. Tujuan penulisan untuk mendeskripsikan bentuk arsitektur Rumah Betang dan keberadaannya pada saat ini, selain itu penelitian ini juga mendeskripsikan kehidupan masyarakat di Rumah Betang. Metode yang digunakan adalah metode deskriptif kualitatif dengan menggunakan tehnik pengamatan dan wawancara dalam menggali data di lapangan serta studi kepustakaan sebagai menggali bahan untuk menulis

Evaluasi Pengendalian Intern Pada Sistem Pembelian Bahan Baku (Studi Pada PT. Fifatex Pekalongan, Jawa Tengah)

The application of internal control was needed to run the company activities. In this research activities buy raw materials required to meet the needs of company. The application of Internal control on activities at the purchase of raw materials was undertaken to reduce fraud that could happen as geminating function and a shortage of other in the process of the purchase of raw materials done by the company. This study attempts to know and to evaluate the application of internal control on a system purchases of raw materials in PT.Fifatex Pekalongan. The results of the study can be seen that the application of internal control on the buying system was less well with there are still geminating function and lack of a document that supports receipt of the goods. Audits of internal control on the structure of organization to an enterprise and a division of labor in this company was less than satisfactory seen from geminating function on the purchase and the finance division. Applied to the use of internal control document in the company still less good then need the addition of a document that can help smooth the activities of the purchase in the company

Pengelola bahasa dan sastra daerah

Terkait dengan pengelolaan bahasa dan sastra daerah, konservasi dan revitalisasi menjadi keniscayaan. Sastra modern berbahasa daerah harus digiatkan, karena sangat potensial untuk pelestarian bahasa. Terbukti di antaranya, sastra modern berbahasa Batak telah membangkitkan kembali gairah berbahasa Batak

Experimental evolution of Burkholderia cenocepacia biofilm populations

Many biofilm populations are known for their exceptional biodiversity but the relative contributions of the forces that could promote this diversity are poorly understood. This uncertainty pervades in the well-established communities found on many natural surfaces and in long-term, chronic infections. Here we describe the parallel evolution of cooperative communities derived from a clone of Burkholderia cenocepacia during approximately 1500 generations of biofilm selection. This long-term evolution was enabled by a new experimental method that selects for daily cycles of colonization, biofilm assembly, and dispersal. Each of six replicate biofilm populations underwent a common pattern of adaptive morphological diversification, in which three ecologically distinct genotypes arose in the same order of succession and persisted. Mixed communities were more productive than any monoculture and each variant benefited from mixture. These gains in output resulted from asymmetrical cross-feeding between genotypes and the expansion and partitioning of biofilm space that constructed new niches. Furthermore, the diversity found in these was due to unique mutations found in each morphotype detected by complete genome sequencing

Organisasi sosial lokal suku bangsa dayak ngaju di kalimantan tengah

Buku ini berisi tentang organisasi sosial lokal suku bangsa dayak ngaju di Kalimantan Tengah. Kekuatan pemerintah daerah ini akan sangat terbantu bilamana ada organisasi-organisas1 sosial lokal yang bersifat tradisional yang masih aktif, peran organisasi sosial tradisional ini pada umumnya merupakan suatu kearifan lokal yang secara langsung berkaitan erat dengan kehidupan sosial budaya masyarakat, khususnya masalah-masalah sosial kemasyarak;itan

Ormulasi Sediaan Tablet Kunyah Ekstrak Etanol Daun Sambiloto (Andrograpis Paniculata Ness.) Dengan Variasi Pengisi 1 Manitol-sukrosa Menggunakan Metode Granulasi Basah

Sambiloto (Andrographis paniculata Ness.) mempunyai berbagai khasiat, salah satunya sebagai antidiare. Untuk menutupi rasa pahit dari sambiloto,sehingga perlu diformulasikan dalam sediaan tablet kunyah. Salah satu bahaneksipien yang digunakan dalam formulasi tablet kunyah adalah pengisi. Manitoldan sukrosa merupakan contoh pengisi yang biasa digunakan dan dapatberpengaruh terhadap proses pembuatan tablet ataupun sifat fisik tablet. Penelitianini bertujuan untuk mengetahui pengaruh variasi pengisi manitol-sukrosa terhadapevaluasi sediaan dan hasil tanggapan rasa tablet kunyah ekstrak etanol daunsambiloto. Tablet kunyah diformulasikan dalam 4 kelompok, kelompok Kontrol(Manitol : Laktosa 80 % : 20 %), Formula 1 (Manitol : Sukrosa 80 % : 20 %),Formula 2 (Manitol : Sukrosa 50 % : 50 %) dan Formula 3 (Manitol : Sukrosa20% : 80%). Formulasi tablet kunyah dilakukan dengan metode granulasi basah.Evaluasi tablet yang dilakukan meliputi organoleptik, keseragaman ukuran,keseragaman bobot, kekerasan, kerapuhan dan waktu hancur serta tanggapan rasa.Analisis dilakukan dengan program R 2.14.1 Packages R commander. Hasilevaluasi tablet menunjukkan adanya mottling pada tablet, keseragaman ukuranberkisar antara 0,433-1,282 cm, keseragaman bobot antara 793,85-804,8 mg,kekerasan antara 5,6-6,02 kg, kerapuhan antara 0,57-1,47 % dan waktu hancurantara 12,28-16,54 menit. Untuk tanggapan rasa, Formula 3 lebih disukaidibandingkan dengan formula lainnya. Secara umum, tablet yang dihasilkan dariseluruh formula memenuhi persyaratan tablet yang baik

The fuzzy goal programming approach to production planning of intermediate gear spare parts: a case study

Production planning has an important role in the company's business processes. A company engaged in the manufacture of intermediate gear parts has a problem in optimizing its production system. The production planning system that occurs is still based on predictions from decision-makers. This study aims to optimize the production planning system to maximize the 15T intermediate gear spare parts' production capacity and the 30T intermediate gear spare parts. Optimization of production planning uses the fuzzy goal programming method to optimize objectives based on existing constraints such as working hours, profit tolerance values, and demand tolerance values. The results showed that the use of fuzzy goal programming was able to increase the production level by 2.765, with an increase in profit of 2.57%. Fuzzy goal programming implementation provides an optimal solution in increasing profits in accordance with company goals based on the constraints that occur

Tax Evasion and Violation of Human Rights: The Case of Indonesia

This article discusses the issue of tax collection from the public in order to finance state administrators in carrying out their duties to create a society that is just, prosperous, spiritual and material. However, the implementation of tax collection is highly loaded with the contents of the political interests of the authorities. As a result, tax less redistributed to the benefit of public as taxpayers. The good and bad of tax policy cannot be separated from the political will of the government because tax policy is a political product of the ruling government, even though in reality it is not entirely legal as a political product but partly a social, cultural, economic and legal product. Interest has a very close relationship with policies made by the government, regardless of whether the policy is pro-people or just the reverse. Corrupt taxation policies will lead to taxation policies that suppress the rights of taxpayers, while democratic taxation policies will provide welfare for the people through redistribution. The author will review tax policies in Indonesia that seem to be forced and depend on the willingness of legislators, the design of tax policies that are dominated by political power without public participation and very minimal in its distribution to the public. This paper discusses tax administration design and practice and tax law making process that are undemocratic, authoritarian and less useful for taxpayers in Indonesia. Keywords: Political Taxation; Democratization, redistribution, human rights violation