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Wulan Anggraeni, Wulan
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Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Transportation Other

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PERBANDINGAN METODE FUZZY TIME SERIES HSU DAN DOUBLE EXPONENTIAL SMOOTHING PADA PERAMALAN NILAI TUKAR RUPIAH TERHADAP DOLAR AMERIKA Anggraeni, Wulan
Jurnal Riset Manajemen dan Bisnis (JRMB) Fakultas Ekonomi UNIAT Vol 1 No 2 (2016)
Publisher : Economic Faculty, Attahiriyah Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (137.741 KB) | DOI: 10.36226/jrmb.v1i2.19

Abstract

The purpose of this study is to determine which accuracy is better between fuzzy time series method and Holt double exponential smoothing method. The data used is daily published rupiah exchange rate of Bank Indonesia in the period of 1 April 2016 until 17 june 2016. After being calculated, the error rate fuzzy time series Hsu method is at 0,6 %, while the error rate holt double exponential smoothing method is at 2,25%. Based on the calculation, it can be concluded that the error rate forecasting rupiah exchange rate using fuzzy time series method is lower than the holt double exponential smoothing It means that the fuzzy time series hsu method has better accuarcy than Holt double exponential smoothing method. The result of forecasting in 21, 22, 23, 24, and 25 respectively are Rp. 13355, Rp. 13375, Rp. 13395, Rp. 13465, Rp 13.475. Keywords: fuzzy time series, holt double exponential, forecasting
PREDIKSI PRESTASI BELAJAR KEWIRAUSAHAAN SISWA SMKN 3 DEPOK BERDASARKAN GAYA BELAJAR MENGGUNAKAN ATURAN MAMDANI Anggraeni, Wulan; Suyahya, Indra
RESEARCH AND DEVELOPMENT JOURNAL OF EDUCATION Vol 3, No 1 (2016)
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/rdje.v3i1.1451

Abstract

Abstrak: Tujuan dari penelitian ini adalah untuk memperoleh prediksi prestasi belajar ekonomi berdasarkan gaya belajar menggunakan aturan mamdani. Urgensi dari penelitian ini adalah sampai saat ini belum ada penelitian yang memprediksi prestasi belajar ekonomi berdasarkan gaya belajar selain itu hasil prediksi dapat digunakan untuk mengetahui nilai dari prestasi belajar ekonomi berdasarkan gaya belajar. Subyek penelitian dari penelitian ini adalah siswa kelas XI di SMK N 3 Depok. Berdasarkan hasil perhitungan diperoleh bahwa kesalahan prediksi nilai kewirausahaan jurusan pemasaran, perbankan syariah, akuntansi perbankan, dan teknik komputer jaringan secara berturut-turut adalah 18,57 %; 28,78 %; 37,2 %; dan 43,95 %. Hasil prediksi yang memiliki tingkat kesalahan terkecil adalah prediksi prestasi belajar kewirausahaan pada siswa kelas XI jurusan pemasaran, sedangan hasil prediksi yang memiliki tingkat kesalahan tertinggi adalah prediksi prestasi belajar kewirausahaan. Semua hasil prediksi yang diperoleh tidak memuaskan, karena tingkat kesalahannya besar.Kata kunci : Prestasi belajar, kewirausahaan, aturan madani.
PERBANDINGAN AKURASI METODE FUZZY TIME SERIES DAN EKSPONENSIAL GANDA BROWN PADA PERAMALAN TINGKAT SUKU BUNGA BANK INDONESIA Ningsih, Rita; Anggraeni, Wulan
RESEARCH AND DEVELOPMENT JOURNAL OF EDUCATION Vol 5, No 1 (2018)
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/rdje.v5i1.3390

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui manakah tingkat akurasi yang lebih baik antara metode fuzzy time series dibandingkan metode pemulusan ganda brown. Data yang digunakan dalam penelitian ini adalah data tingkat suku bunga Bank Indonesia yang diterbitkan oleh Bank Indonesia setiap bulannya. Periode yang digunakan dimulai dari bulan Januari 2011 sampai dengan bulan Mei 2016. Setelah dilakukan perhitungan tingkat kesalahan fuzzy time series Hsu sebesar 2.05 %, sedangkan tingkat kesalahan metode pemulusan ganda brown’s adalah sebesar 1,36 %. Berdasarkan hasil perhitungan di atas dapat ditarik kesimpulan bahwa, tingkat kesalahan peramalan tingkat suku bunga menggunakan metode pemulusan ganda brown lebih kecil dibandingkan metode fuzzy time series. Sehingga di sarankan dalam meramalkan tingkat suku bunga, metode eksponensial ganda brown dapat dipergunakan.
Analisis Pengelompokan Gempa Bumi di Indonesia Berdasarkan Ruang-Waktu-Kekuatan Kedalaman Anggraeni, Wulan
NUCLEUS Vol 4 No 2 (2023): NUCLEUS
Publisher : Neolectura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37010/nuc.v4i2.1480

Abstract

Indonesia merupakan daerah rawan gempa bumi dikarenakan terletak antar pertemuan lempeng Indo-Australia, Eurasia dan Pasifik. Pada periode 2009 s. 2021, terjadi 73,674 dengan kekuatan gempa berada dalam interval 1 sampai dengan 7.9 Skala Richter (SR) dan gempa lebih dari 6 SR sebanyak 162 kejadian. Analisa Seismik dalam penelitian ini mengelompokkan jarak Space, Time, Depth dan Magnitude (STDM) pada kejadian gempa ke-i dan ke-j dimana menggunakan kombinasi Metode K-Means dan Indeks Silhouette. Hasil pengelompokkan menunjukkan bahwa karakteristik seismisitas berdasarkan transformasi logaritma jarak STDM, zona 1, zona 2, zona 4, zona 5 memiliki 2 tipe, zona 7 memiliki 4 tipe sedangkan zona 3 dan zona 6 memiliki 6 tipe. Hasil penelitian ini diharapkan dapat menjadi salah satu metode alternatif dalam pengelompokkan data kegempaan sehingga dapat menggambarkan kondisi seismik suatu wilayah.
Analisis Seismisitas Sumatera Barat menggunakan Space-Time-Depth-Magnitude Mulyono, Adi; Dzahabiyyah, Mufliha; Putri, Ika Apriliana; Anggraeni, Wulan
NUCLEUS Vol 5 No 1 (2024): NUCLEUS
Publisher : Neolectura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37010/nuc.v5i1.1501

Abstract

Sumatera Barat merupakan wilayah rawan gempa karena terletak pada lempeng tektonik India-Australia  dengan lempeng Eurasia, Mentawai Fault System (MFS) dan Sumatera Fault System (SFS) atau sesar Sumatera.  Oleh karena itu, perlu adanya kajian seismik untuk menggambarkan karakteristik kegempaan. Tujuan penelitian ini adalah memperoleh karakteristik gempa Sumatera Barat melalui Space-Time-Depth-Magnitude. Alur penelitian terdiri atas 7 tahap yaitu, penambangan data, preprocessing data, perhitungan nilai b pada persamaan Gutenberg Ritcher, fraktal, jarak haversine, STDM, interpretasi hasil. Data yang dipergunakan adalah data kejadian gempa periode 2009 hingga 2023 bersumber dari Badan Meterologi, Geofisika, dan Klimatologi (BMKG) dengan membaginya menjadi 3 periode yaitu periode 1 pada 30 September 2009 hingga 24 Oktober 2010, periode 2 pada 25 Oktober 2010 hingga 10 April 2012, periode 3 pada 11 April 2012 hingga 24 April 2023. Hasil yang diperoleh adalah penurunan jarak STDM pada suatu periode mengisyaratkan gempa merusak yang akan terjadi memiliki kekuatan lebih kecil dari gempa sebelumnya, sedangkan peningkatan STDM mengisyaratkan gempa merusak yang akan terjadi memiliki kekuatan lebih besar dari gempa merusak sebelumnya. Hasil penelitian diharapkan dapat berkontribusi dalam menggambarkan keadaan seismik Sumatera Barat sehingga dapat mengantisipasi terjadinya korban jiwa.
Penulisan Arab dan Pengaruhnya terhadap Pemahaman Teks Arabic Writing and its Influence on text Comprehension Hulwatunnisa, Hulwatunnisa; Zuliana, Erni; Anggraeni, Wulan; Nariyah, Aini; Isma, Vidya; Milah, Aang Saeful
Al-Fathin: Jurnal Bahasa dan Sastra Arab Vol 7 No 01 (2024)
Publisher : Institut Agama Islam Negeri Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/al-fathin.v7i01.9446

Abstract

Arabic has its origins in the history of writing. This study aims to gather sufficient information about the history of Arabic writing and the influence of writing on the understanding of the writing. This research method is a literature study that collects some previous research to discuss the history of Arabic writing and answer what influence writing has on the understanding of the writing. The results showed that there are many opinions about the origin of the birth of Arabic script. At the time of the Prophet of Allah, the development of writing began in the 2nd year, the Prophet taught writing for prisoners who wanted to be released without having to pay a ransom. Arab society already has its own writing. Although still simple with a classical kufic form that does not have vowel markers and consonant differentiators. And also still do not know sentence markers such as dots, commas, or decorations in writing. So the arrival of the Qur'an made the development of Arabic writing better. Arabic writing is not free from mistakes. Errors in writing greatly affect reading comprehension, because even a single letter can change the meaning of reading. The comprehension of Arabic writing depends on knowledge of Arabic vocabulary and grammar.
Perbandingan Hasil Belajar Fisika Siswa Terhadap Metode Pembelajaran Guru Pada Kelas X Hermansyah, Hermansyah; Maslinda, Maslinda; Anggraeni, Wulan; Haris, Andi; Safitri, Ade
Journal of Science Instruction and Technology Vol. 3 No. 2 (2023): JSIT
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Samawa

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

Abstract

This research aims to determine the comparison of student learning outcomes with teacher learning methods in class x SMA Plus Aisyah. This type of research is quasi-experimental. The sampling technique used was probability sampling with a purposive sampling model. The research was carried out in classes X MIA1 and X MIA2 as experimental classes with a total of 22 students in each class. Data collection techniques use documentation, tests and observation. Data analysis used the Wilcoxon test with a significance level of 0.05. The results of the research are that the learning outcomes for class X MIA1 are lower than those for class X MIA2 based on. The conclusion of this research is that teachers' teaching methods influence student grades. The suggestion from this research is that teachers should use video media to foster students' interest in learning.
Evaluation of Sunflower Seed Oil Emulgel with Carbopol 940: Physical Properties and Moisturizing Effectiveness Anggraeni, Wulan; Al-Hakim, Nur Achsan; Maharani, Nur Intan
Indonesian Journal of Pharmaceutical Education Vol 5, No 1 (2025): January–April 2025
Publisher : Jurusan Farmasi Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37311/ijpe.v5i1.29584

Abstract

Sunflower seed oil is sourced from Helianthus annuus L., which is a plant that is extremely rich in essential fatty acids and antioxidants, so it can be used as a natural moisturizer that helps prevent, reduce, and protect skin from dryness. The purpose of this study was to evaluate the effect of variations in Carbopol 940 concentration on the physical properties and moisture effectiveness of sunflower seed oil emulgel dosage forms. The formulas were made into 3 formulas, with each concentration of Carbopol 940 for each formula, namely F1 (1%), F2 (1.5%), and F3 (2%). Furthermore, organoleptic, homogeneity, pH, viscosity and spreadability tests were carried out, as well as irritation and moisture effectiveness tests. The results of statistical analysis using one-way ANOVA showed a significant difference (P 0.05) which clarified that F1 provided an optimal increase in skin moisture (50.00%) compared to F2 (42.75%) and F3 (45.55%) and had good and stable physical properties evaluation results. In addition, increasing the concentration of Carbopol 940 in F2 and F3 can increase viscosity, but this actually affects the stability of the physical properties and moisture effectiveness of the preparation. This research concluded that F1 is the best formula and this study provides important information for the development of effective and stable skin moisturizing products, with recommendations for the use of effective concentrations of Carbopol 940 in the formulation of emulgel dosage forms.
PELATIHAN MEMBUAT PARFUM UNTUK MENINGKATKAN JIWA KEWIRAUSAHAAN SISWA DI SMP NEGERI 16 JAKARTA Anwar, Saiful; Fitriani, Tria; Maulina, Trisia Loli; Anggraeni, Wulan; Herlina, Yena; Yuningsih, Yulia
Indonesian Journal of Engagement, Community Services, Empowerment and Development Vol. 4 No. 3 (2024): Indonesian Journal of Engagement, Community Services, Empowerment and Developme
Publisher : Yayasan Education and Social Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53067/ijecsed.v4i3.184

Abstract

Education is an agent of change, one of which can be done is by honing the entrepreneurial spirit of students. Entrepreneurship refers to a new creative result created by someone and carried out personally and the ability to see a situation in which there are various opportunities to gain profit, or obtain a solution in facing various obstacles/problems by prioritizing courage, sincerity, and all the abilities they have to create something new., until now the quality of education is still far from expectations. Education in Indonesia still only applies theoretical matters, but does not apply them in social life and is able to solve various problems they face every day. The right education to be applied in Indonesia is education that is oriented towards an entrepreneurial spirit, namely a spirit that is brave and able to face problems and find solutions on its own without relying on others. This is less noticed by schools in general, so that the entrepreneurial spirit embedded in students is not accommodated by schools, training is needed to improve students' entrepreneurial creativity
DEVELOPMENT OF SKILLS OF PROSPECTIVE TEACHER STUDENTS IN USING LEARNING MEDIA THROUGH FIELD STUDY Wahidin, Unang; Sarbini, Muhammad; Anggraeni, Wulan
Edukasi Islami: Jurnal Pendidikan Islam Vol. 13 No. 02 (2024): Edukasi Islami: Jurnal Pendidikan Islam
Publisher : Sekolah Tinggi Agama Islam Al Hidayah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30868/ei.v13i02.6599

Abstract

It is necessary to develop the skills of prospective teacher students in using various forms of learning media. This research aims: (1) to analyze the perception of prospective teacher students towards field study to school, (2) to analyze the level of understanding of prospective teacher students towards learning media subject matter, (3) to analyze the usefulness of field study for prospective teacher students in studying learning media courses. The research method used is qualitative with a descriptive type of study research—data collection techniques through complete observation, documentation, and structured interviews. The results showed (1) Perceptions of prospective teacher students towards field study to school: (a) Strongly disagree that learning media courses are only studied as the theory in class, (b) With field study to school, the material of learning media courses becomes more interesting. (2) The level of understanding of prospective teacher students towards learning media subject matter: (a) Through field study, prospective teacher students gain direct experience related to the use of various forms of learning media, (b) With field study make learning media subject material relevant, (c) Field study helps prospective teacher students easily understand learning media subject material. (3) Field study is helpful for prospective teacher students learning media course material. This research implies that developing a learning media lecture system is necessary through a field study of prospective teacher students in schools.
Co-Authors Aang Saeful Milah Ade Safitri, Ade Adi Mulyono Andi Haris, Andi Andri Suryana Apriliyanti, Zara Dzahabiyyah, Mufliha Erni Zuliana Fitriani, Tria Hayatun Nufus Herlina, Yena Hermansyah Hermansyah Hulwatunnisa, Hulwatunnisa Isma, Vidya Maharani, Nur Intan Mansur, Harri Mochamad MASLINDA MASLINDA, MASLINDA Maulina, Trisia Loli Muhammad Nur Wangid Muhammad Sarbini, Muhammad Nariyah, Aini Ningsih, Rita Nur Achsan Al-Hakim Nurhayati Nurhayati Prihandini, Dika Purnaningratri, Indah Putri, Ika Apriliana Rahmat Taufiq Mustahiq Akbar, Rahmat Taufiq Rahmawati, Tiara Saiful Anwar Suyahya, Indra Unang Wahidin, Unang Walidain, Sri Nurul Wardah, Siti Zulfa Tri Wulandari, Novi Ayu Yuningsih, Yulia