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PENERAPAN TEKNIK BAGGING PADA ALGORITMA KLASIFIKASI UNTUK MENGATASI KETIDAKSEIMBANGAN KELAS DATASET MEDIS Rizki Tri Prasetio; Pratiwi Pratiwi
Jurnal Informatika Vol 2, No 2 (2015): Jurnal INFORMATIKA
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.145 KB) | DOI: 10.31294/ji.v2i2.118

Abstract

ABSTRACT – The class imbalance problems have been reported to severely hinder classification performance of many standard learning algorithms, and have attracted a great deal of attention from researchers of different fields. Therefore, a number of methods, such as sampling methods, cost-sensitive learning methods, and bagging and boosting based ensemble methods, have been proposed to solve these problems. Some medical dataset has two classes has two classes or binominal experiencing an imbalance that causes lack of accuracy in classification. This research proposed a combination technique of bagging and algorithms of classification to improve the accuracy of medical datasets. Bagging technique used to solve the problem of imbalanced class. The proposed method is applied on three classifier algorithm i.e., naïve bayes, decision tree and k-nearest neighbor. This research uses five medical datasets obtained from UCI Machine Learning i.e.., breast-cancer, liver-disorder, heart-disease, pima-diabetes and vertebral column. Results of this research indicate that the proposed method makes a significant improvement on two algorithms of classification i.e. decision tree with p value of t-Test 0.0184 and k-nearest neighbor with p value of t-Test 0.0292, but not significant in naïve bayes with p value of t-Test 0.9236. After bagging technique applied at five medical datasets, naïve bayes has the highest accuracy for breast-cancer dataset of 96.14% with AUC of 0.984, heart-disease of 84.44% with AUC of 0.911 and pima-diabetes of 74.73% with AUC of 0.806. While the k-nearest neighbor has the best accuracy for dataset liver-disorder of 62.03% with AUC of 0.632 and vertebral-column of 82.26% with the AUC of 0.867. Keywords: ensemble technique, bagging, imbalanced class, medical dataset. ABSTRAKSI – Masalah ketidakseimbangan kelas telah dilaporkan sangat menghambat kinerja klasifikasi banyak algoritma klasifikasi dan telah menarik banyak perhatian dari para peneliti dari berbagai bidang. Oleh karena itu, sejumlah metode seperti metode sampling, cost-sensitive learning, serta bagging dan boosting, telah diusulkan untuk memecahkan masalah ini. Beberapa dataset medis yang memiliki dua kelas atau binominal mengalami ketidakseimbangan kelas yang menyebabkan kurangnya akurasi pada klasifikasi. Pada penelitian ini diusulkan kombinasi teknik bagging dan algoritma klasifikasi untuk meningkatkan akurasi dari klasifikasi dataset medis. Teknik bagging digunakan untuk menyelesaikan masalah ketidakseimbangan kelas. Metode yang diusulkan diterapkan pada tiga algoritma classifier yaitu, naïve bayes, decision tree dan k-nearest neighbor. Penelitian ini menggunakan lima dataset medis yang didapatkan dari UCI Machine Learning yaitu, breast-cancer, liver-disorder, heart-disease, pima-diabetes dan vertebral column. Hasil penelitian menunjukan bahwa metode yang diusulkan membuat peningkatan yang signifikan pada dua algoritma klasifikasi yaitu decision tree dengan P value of t-Test sebesar 0,0184 dan k-nearest neighbor dengan P value of t-Test sebesar 0,0292, akan tetapi tidak signifikan pada naïve bayes dengan P value of t-Test sebesar 0,9236. Setelah diterapkan teknik bagging pada lima dataset medis, naïve bayes memiliki akurasi paling tinggi untuk dataset breast-cancer sebesar 96,14% dengan AUC sebesar 0,984, heart-disease sebesar 84,44% dengan AUC sebesar 0,911dan pima-diabetes sebesar 74,73% dengan AUC sebesar 0,806. Sedangkan k-nearest neighbor memiliki akurasi yang paling baik untuk dataset liver-disorder sebesar 62,03% dengan AUC sebesar dan 0,632 dan vertebral column dengan akurasi sebesar 82,26% dengan AUC sebesar 0,867. Kata Kunci: teknik ensemble, bagging, ketidakseimbangan kelas, dataset medis.
FEASIBILITY STUDY OF BUSINESS IN AGARWOOD INOCULATION AT DIFFERENT STEM DIAMETERS AND INOCULATION PERIODS Sri Suharti; Pratiwi Pratiwi; Erdy Santosa; Maman Turjaman
Indonesian Journal of Forestry Research Vol 8, No 2 (2011): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2011.8.2.114-129

Abstract

Indonesia signifies as the biggest agarwood producer country in the world. Its demand and price tend to increase and have brought about over exploitation of agarwood. Consequently, its population in nature has decreased significantly. To overcome the situation, since 1995, agarwood has been included in the CITES Appendix II. However, illegal exploitation remains persistent and reaches an excessive level. In order to deal with it, agarwood cultivation and its artificial production have been undertaken at several provinces in Indonesia. Some supporting factors for agarwood cultivation and artificial production are the availability of potential land for extensive cultivation, appropriate agro climate condition, simple cultivation technique and already being well adopted by farmers, the availability of necessary pathogen for agarwood inoculation, and the increasing demand with relatively high price. The research aims to analyze the feasibility study of agarwood inoculation business at several stem diameters (15 - 25 cm; 26 -35 cm and 36 - 40 cm) and periods of inoculation (1 - 5 years). Data were collected through field observation and literature study. The results showed that inoculation on agarwood producer tree stands at 12.5% interest rate afforded positive net present value (NPV),  internal rate of return (IRR) is much higher than market interest and benefit cost (B/C) ratio >2 for those three diameter classes. Furthermore, if agarwood harvesting is delayed until five years after inoculation, NPV,  IRR and B/C ratio would be much higher. It can be concluded that inoculation on agarwood producer tree stands (at appropriate age for inoculation) is feasible to be developed.
Pengembangan Pendekatan Creative Problem Solving Pratiwi Pratiwi; Haslinda Haslinda; Khalik Khalik; Tri Wijaya; M. Yasdar; Husni Husni; Elihami Elihami; Adi Adi
EduPsyCouns: Journal of Education, Psychology and Counseling Vol 2 No 2 (2020): EduPsyCouns: Journal of Education, Psychology and Counseling
Publisher : Universitas Muhammadiyah Enrekang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Students' creative thinking skills are competencies that must be developed to face the future in the era of the industrial revolution 4.0. The research was carried out on the third semester students of Nonformal Education at the University of MUhammadiyah Enrekang. The purpose of student and lecturer activities during the lecture process with a scientific approach is to describe students' creative thinking skills through a scientific approach. This study uses a critical review through field research. The instruments used in this study were student and lecturer activity observation sheets during learning and student creative thinking test sheets. The results showed that there was an increase in students' creative thinking skills with a percentage of 70% in the initial stage to 76% in the second stage, lecturer activity also increased from 79% in the first stage to 81% in the second stage. Meanwhile, student activity increased from 75% in the first stage to 78 in the second stage. Based on the results of this study, lecturers are advised to apply a scientific approach to develop other competencies needed in the era of society 5.0.
GROWTH AND SURVIVAL RATE OF VANAME SHRIMP (Litopenaeus vannamei) PL-10 ON DIFFERENT STOCKING DENSITY Pratiwi Pratiwi; Muhammad Marzuki; Bagus Dwi Hari Setyono
AQUASAINS Vol 9, No 2 (2021)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v9i2.p903-912

Abstract

Litopenaeus vannamei is a commercial shrimp that has high economic value. In recent years, the main commodity contributing to the aquaculture sector in Indonesia is vaname shrimp. Vaname shrimp cultivation aims to meet the increasing market demand. One of the factors that influence the success of vaname shrimp cultivation is the stocking density. This study aims to determine the growth and viability of PL-10 vaname shrimp (Litopenaeus vannamei) fry at different stocking densities. This study used a completely randomized design (CRD). There were 4 treatments, namely P1 with a stocking density of 75 heads / 40 liters, P2 with a stocking density of 150 heads / 40 liters, P3 with a stocking density of 225 heads / 40 liters, and P4 with a stocking density of 300 heads / 40 liters, respectively. 4 repetitions. The research data were analyzed using statistical analysis Univariate One Way Analysis of Variance at 5% level with a 95% confidence interval. The results showed that the highest daily growth rate was obtained in treatment P1 with an average value of 26.836 ± 0.745% / day, the highest daily length growth rate was obtained in treatment P1 with an average value of 6.719 ± 0.103% / day, the highest absolute weight growth was obtained at treatment P1. P1 treatment with an average value of 0.031 ± 0.027 gram, absolute length growth was obtained in treatment P1 with an average value of 23.025 ± 0.667 mm, the highest survival rate was obtained in treatment P2 with an average value of 96.333 ± 3.549%, but not different real with treatment P2 (93.333 ± 3.443%) and treatment P4 (92.417 ± 2.062). The conclusion of this study is that stocking density has a significant effect on the growth of vannamei shrimp which are being maintained at the PL-10 stage. The best stocking density in this study was P1 treatment (75 fish / 40 liters).
Terapi Bekam dan Akupunktur Terhadap Penurunan Tekanan Darah pada Penderita Hipertensi Primer (Esensial) di Klinik Herbal El Zahra Kota Tarakan Yumira Ria Santi; Yhona Paratmanitya; Pratiwi Pratiwi
JNKI (Jurnal Ners dan Kebidanan Indonesia) (Indonesian Journal of Nursing and Midwifery) Vol 2, No 3 (2014): November 2014
Publisher : Alma Ata University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.885 KB) | DOI: 10.21927/jnki.2014.2(3).147-154

Abstract

Hypertension is health problems are often happens in society, both of urban and rural community. Prevalence in Indonesia reached was 75.8% quite high, the long term medical treatment make it more difficult to handled properly. Alternative treatment like cupping and acupuncture are patients hypertension efforts to be free from side effects inflicted by chemical medicines. The purpose of this study was to determine the effect of cupping and acupuncture therapy effectiveness in blood pressure reduction among patients with primary hypertension. Study design used in this study was pre experimental designs with pretest–posttest, used statistics of paired t-test and independent t-test. The Results of paired test showed that value of p were 0.003 for systole blood pressure of cupping and 0.000 for systole blood pressure of acupuncture while diastole blood pressure of cupping obtained by value of p were 0.065 and 0.775 for diastole blood pressure of acupuncture, it means that cupping and acupuncture only had an affect on systole blood pressure reduction. Analysis results of independent t-test showed that value of p were 0.051 for systole blood pressure and 0.511 for diastole blood pressure, it means that there was no differences between cupping and acupuncture therapy. Based on average of blood pleasure reduction, acupuncture can reduce of 17 mmHg of systole blood pressure while cupping only 10 mmHg, in acupuncture also reduce of 16 mmHg diastole blood pressure while cupping canl 19 mmHg.
BECOME A RELIABLE TRADER : Playing The Role Of Price As A Psychological Influence On Consumers Pratiwi Pratiwi; Salsabillah Salsabillah
Jurnal PKM Manajemen Bisnis Vol. 1 No. 2 (2021): Jurnal PKM Manajemen Bisnis
Publisher : Perhimpunan Sarjana Ekonomi dan Bisnis

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (37.853 KB)

Abstract

In simple terms, the principle of trading is to work for yourself. While the basic principle of doing business is to involve many parties in trading to achieve a bigger goal. Theoretically, being an entrepreneur is very difficult, but that doesn't mean it's impossible. Due to the fact, many business actors appear throughout the year. Therefore, it takes effort to learn to be an entrepreneur or businessman. For this reason, this service activity was carried out. The purpose of community service activities is to share knowledge, so that people can increase their capacity as entrepreneurs by optimizing their talents. The method of this activity is the presentation of material packaged in the form of learning. The end of this activity is to motivate the participants to dare to do business, starting with the most possible and minimal risk, for example becoming an agent, reseller, dropshipper, and so on. In addition, the participants were also given training on using the Market place, a place to sell digitally without capital. At the same time, teach how to become an agent or reseller at big stores. So that the participants get direct experience of entrepreneurship.
Kodefikasi Tindakan Operatif Sesuai ICD 9 CM Pada Kasus Bedah Umum Di Rumah Sakit Pratiwi Pratiwi; Endang Sri Dewi; Rizky Krisna
Jurnal Pendidikan Kesehatan Vol 6 No 2 (2017): Jurnal Pendidikan Kesehatan
Publisher : Poltekkes Kemenkes Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31290/jpk.v(6)i(2)y(2017).page:78-82

Abstract

Tujuan penelitian ini untuk mengetahui perbedaan tingkat kecepatan dan keakuratan kodefikasi tindakan di RSI Malang UNISMA secara manual dan aplikasi elektronik. Metode penelitian yang digunakan adalah Pre Experimental dengan menggunakan desain One Group Pretest Posttest dengan sampel 21 dokumen rekam medis kasus bedah umum periode Desember 2016. Hasil penelitian dianalisis menggunakan uji Paired T test, dengan hasil rata rata waktu kodefikasi tindakan secara manual 112,19 detik dan menggunakan elektronik 12,14 detik. Nilai signifikan hasil menunjukkan angka 0,000 yang artinya kurang dari 0,05, maka hipotesa dalam penelitian ini diterima. Persentase tingkat kecepatan kodefikasi manual mencapai angka 23,8 persen, sedangkan tingkat kecepatan kodefikasi dengan aplikasi elektronik mencapai angka 100 persen dengan hasil perhitungan tingkat keakuratan kodefikasi baik secara manual maupun aplikasi elektronik keduanya mencapai persentase angka yang sama yaitu 100 persen. Berdasarkan hasil observasi dapat disimpulkan bahwa terdapat selisih waktu kodefikasi tindakan antara manual dan aplikasi elektronik sebesar 100.05 detik dengan tingkat keakuratan yang sama antara keduanya. Hasil perbandingan menunjukkan bahwa aplikasi elektronik terbukti lebih cepat dengan tingkat keakuratan yang sama dibandingkan secara manual.
PERSEPSI KEPUASAN PENGUNJUNG MEDAN ZOO DALAM KEINDAHAN MAGICAL FOREST DHUNA GLOW Izkal Dwifa Juarsa; Monica Nur Annisa; Rini Permatasari; Pratiwi Pratiwi; Esy Putri Yolanda; Nursapia Harahap
Triwikrama: Jurnal Ilmu Sosial Vol. 6 No. 7 (2025): Triwikrama: Jurnal Ilmu Sosial
Publisher : Cahaya Ilmu Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6578/triwikrama.v6i7.9645

Abstract

A B S T R A K Penelitian ini bertujuan untuk menganalisis persepsi kepuasan pengunjung terhadap keindahan "Magical Forest Dhuna Glow" di Medan Zoo. Dengan hadirnya inovasi atraksi cahaya yang menggabungkan seni dan teknologi, Medan Zoo diharapkan dapat menarik lebih banyak pengunjung dan memberikan dampak positif pada sektor pariwisata lokal. Penelitian ini menggunakan pendekatan kualitatif dengan metode wawancara mendalam kepada pengunjung yang telah mengalami langsung atraksi tersebut. Fokus penelitian ini mencakup persepsi pengunjung terhadap keindahan "Magical Forest Dhuna Glow", faktor-faktor yang memengaruhi kepuasan mereka, dan niat untuk merekomendasikan atau kembali berkunjung. Hasil penelitian menunjukkan bahwa keindahan atraksi dan kualitas pengalaman yang ditawarkan berperan besar dalam meningkatkan kepuasan pengunjung. Penelitian ini memberikan rekomendasi kepada pengelola Medan Zoo untuk meningkatkan pelayanan dan pengembangan atraksi serupa demi keberlanjutan pariwisata lokal. A B S T R A C T This study aims to analyze visitors' satisfaction perceptions regarding the beauty of the "Magical Forest Dhuna Glow" at Medan Zoo. With the introduction of this light attraction combining art and technology, Medan Zoo aims to attract more visitors and have a positive impact on local tourism. This research adopts a qualitative approach, using in-depth interviews with visitors who have experienced the attraction. The focus of this study includes visitors' perceptions of the beauty of "Magical Forest Dhuna Glow," factors influencing their satisfaction, and their intention to recommend or revisit the attraction. The results indicate that the beauty of the attraction and the quality of the experience play a significant role in enhancing visitor satisfaction. This research provides recommendations for the management of Medan Zoo to improve services and develop similar attractions for the sustainability of local tourism.
Penerapan Teknik Expository dalam Penyutradaraan Film Dokumenter “Museum Perkebunan Indonesia” Karya Fabio Fahrezi Canavaro Pratiwi Pratiwi; Dani Manesah
Abstrak : Jurnal Kajian Ilmu seni, Media dan Desain Vol. 2 No. 1 (2025): Januari : Abstrak : Jurnal Kajian Ilmu seni, Media dan Desain
Publisher : Asosiasi Seni Desain dan Komunikasi Visual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/abstrak.v2i1.529

Abstract

The documentary film "Museum Perkebunan Indonesia" by Fabio Fahrezi Canavaro uses the expository technique to present the history of plantations in Indonesia in a factual and educational manner. This technique emphasizes the clear delivery of information through authoritative narration, visual archives, and expert interviews, providing the audience with a deeper understanding. The documentary is structured in a chronological narrative, starting with the early history of plantations during the colonial era, the post-independence developments, and the relevance of plantations in the modern era. Observations of the film reveal the use of visual archives, such as old plantation photos, historical documents, and colonial maps, as well as interviews with historians and plantation practitioners, enriching the narrative. The combination of clear verbal narration and visual evidence strengthens the presented information, making it easier to comprehend. The expository technique successfully changes the perception of plantation history, which was previously considered monotonous, into something more engaging and relevant. This documentary not only serves as a medium for historical education but also provides a fresh perspective on the role of plantations as a key pillar of Indonesia’s economy. Through this approach, the film serves as an effective example of expository technique in historical documentary filmmaking in Indonesia, encouraging the audience to explore often-overlooked history.
Islam Dan Hak Asasi Manusia Dalam Pandangan Nurcholis Madjid (Mohammad Monib) Pratiwi Pratiwi
Jurnal Wacana Kinerja: Kajian Praktis-Akademis Kinerja dan Administrasi Pelayanan Publik Vol 15, No 2 (2012)
Publisher : Center fo State Civil Apparatus Training and Development and Competency Mapping

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31845/jwk.v15i2.271

Abstract

Hak Asasi Manusia (HAM) acapkali menjadi diskursus kontroversial di di negara-negara berpenduduk mayoritas islam. Daiam konteks banyaknya kasus pelanggaran HAM di Indonesia yang kian tak tertangani, pernikiran Nurcholish Madjid atau Cak Nur dalam buku ini telah dielaborasi secara komprehensif sebagai jalan tengah pernaharnan kontekstual terhadap teks keagamaan. Islam yang mengatur hubungan manusia dengan Tuhan, antarmanusia dan semesta alam menetapkan sejumlah anjuran, kewajiban dan konsekuensi. Beberapa dari anjuran, kewajiban dan konsekuensi yang diatur dalarn teks keagamaan tidak jarang berpolemik dengan HAM dalam pandangan universal. HAM merupakan hak hidup primordial yang tidak dikaitkan dengan kewajiban apapun dari Tuhan. Sedangkan para penentang HAM modern berpendapat, manusia berpusat pada pengabdian total kepada Tuhan melalui ajaran agama.