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All Journal Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Indonesian Journal of Combinatorics Jurnal Pendidikan Indonesia (Japendi) COMPUTECH : Jurnal Ilmiah Teknologi Informasi dan Komunikasi
Nisa Ayunda
Universitas Pesantren Tinggi Darul Ulum
Computer Science & IT Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics

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Another H-super magic decompositions of the lexicographic product of graphs H Hendy; Kiki A. Sugeng; A.N.M Salman; Nisa Ayunda
Indonesian Journal of Combinatorics Vol 2, No 2 (2018)
Publisher : Indonesian Combinatorial Society (InaCombS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (915.399 KB) | DOI: 10.19184/ijc.2018.2.2.2

Abstract

Let H and G be two simple graphs. The concept of an H-magic decomposition of G arises from the combination between graph decomposition and graph labeling. A decomposition of a graph G into isomorphic copies of a graph H is H-magic if there is a bijection f : V(G) ∪ E(G) → {1, 2, ..., ∣V(G) ∪ E(G)∣} such that the sum of labels of edges and vertices of each copy of H in the decomposition is constant. A lexicographic product of two graphs G1 and G2,  denoted by G1[G2],  is a graph which arises from G1 by replacing each vertex of G1 by a copy of the G2 and each edge of G1 by all edges of the complete bipartite graph Kn, n where n is the order of G2. In this paper we provide a sufficient condition for $\overline{C_{n}}[\overline{K_{m}}]$ in order to have a $P_{t}[\overline{K_{m}}]$-magic decompositions, where n > 3, m > 1,  and t = 3, 4, n − 2.
Analisa Peramalan Data Time-Series Dengan Aplikasi Windows POM-QM Nisa Ayunda; Faizah; Sujarwo
Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 11 No 2 (2021)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/buanamatematika.v11i2.5913

Abstract

Peramalan data time-series kini menjadi suatu kebutuhan dalam dunia bisnis maupun lingkungan hidup. Software Windows POM – QM memiliki tools dan beberapa metode yang dapat digunakan untuk peramalan data time-series. Diperlukan sebuah analisa hasil peramalan untuk mengetahui efektivitas dan akurasi metode-metode tersebut dalam meramalkan data time series agar dapat digunakan sebagai referensi metode dalam mendapatkan hasil yang optimal. Nilai MAPE digunakan sebagai ukuran perbandingan dalam analisa hasil perbandingan peramalan. Data time series yang digunakan adalah data curah hujan di Kabupaten Jombang. Hasil peramalan dengan metode Exponential Smoothing memiliki rata – rata nilai MAPE terkecil dibandingkan dengan metode lainnya yaitu sebesar 2,4 dengan pola data hasil peramalan berfluktuasi sebagaimana data sebenarnya. Sehingga penggunaan metode Exponential Smoothing dapat digunakan sebegai referensi dalam peramalan data time series dengan pola data musiman dengan menggunakan software Windows POM-QM.
Preferensi Pemilihan Susu Formula Bayi 0-6 Bulan dengan Metode AHP (Analytic Hierarchy Process) Nisa Ayunda
Jurnal Pendidikan Indonesia Vol. 2 No. 01 (2021): Jurnal Pendidikan Indonesia (Japendi)
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (619.012 KB) | DOI: 10.36418/japendi.v2i1.1131

Abstract

In the world of mothers, the selection of formula milk as a substitute or companion for breast milk is very important because good nutrition is needed to support the baby's growth period. Meanwhile, now there are many choices of formula milk that have various benefits for each brand that are tailored to the needs of babies. Seeing these problems, this study offers a solution for choosing infant formula using the AHP (Analytic Hierarchy Process) method. In this study, the selection of formula milk was determined as a goal that looked at 4 criteria of carbohydrates, protein, fat, and calcium and used 11 brands of formula milk as an alternative. By carrying out the stages of completion using the Analytic hierarchy process AHP method, it was found that Organic Baby & Me milk was milk with the highest reference level of 43%.
Pengaruh Kebijakan Subsidi Pupuk dan Karakteristik Petani Terhadap Tingkat Kesejahteraan Petani Tembakau Afsah Novita Sari; Suwandri Nur Alif; Nisa Ayunda
Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 13 No 1 (2023)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/buanamatematika.v13i1.7434

Abstract

Farmer welfare is a condition of a farmer in a prosperous, healthy and peaceful condition without social jealousy in the community. However, this is difficult to materialize for farmers because of a number of factors, namely the ineffective and inefficient fertilizer subsidy policy with farm needs and the different characteristics of farmers in conducting farming.The purpose of this study was to analyze the level of welfare of tobacco farmers in Jombang Regency measured by the large farmer exchange rate (NTP) with several variables including the fertilizer subsidy policy variable, and the farmer characteristics variable.From statistical testing using ordinal logistic regression. The research data was obtained with 123 questionnaires distributed in Sawahan Hamlet Sumbergondang Village, Kabuh District, Jombang Regency.From the partial test, it was explained that the variables which were made into research did not significantly influence the farmer exchange rate (NTP). The results of the coefficient of determination show the results of the coefficient of determination Nagelkerke of 0.900 or 90.0%. It means that the independent variable (fertilizer subsidy policy, and the characteristics of farmers) affects the farmer exchange rate (NTP) of 90.0% while 10.0% is influenced by other factors not included in this research variable.
Implementasi Sistem Interferensi Fuzzy Pada Penentuan Ongkos Jasa Penjahit Nisa Ayunda; Siti Nurrosyidah; Hendy
Computech : Jurnal Ilmiah Teknologi Informasi dan Komunikasi Vol. 1 No. 2 (2021): Juli 2021
Publisher : AMIK

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

Abstract

Usaha busana merupakan usaha mikro yang termasuk pada usaha informal subsektor jasa. Salah satu pelaku usaha subsektor jasa adalah penjahit. Penjahit sering dihadapkan dengan permasalahan seperti dalam menentukan ongkos menjahit. Penjahit menentukan ongkos secara konvensional, perkiraan, atau berdasarkan rata-rata ongkos di daerah sekitar usaha. Berdasarkan permasalahan tersebut, dilakukan penelitian mengenai penentuan ongkos dengan sistem interferensi fuzzy. Sistem ini merupakan salah satu sistem pendukung keputusan yang merepresentasikan bahasa linguistik menjadi bilangan numerik. Perhitungan ongkos dengan sistem fuzzy menggunakan metode Mamdani dengan sembilan variabel input, yaitu: dan . Perhitungan ongkos pakaian dengan Model 2 secara FIS pada Matlab memperoleh harga Rp 81.250,00 per pakaian. Perhitungan tersebut menunjukkan bahwa harga tersebut berada pada range ongkos yaitu Rp 35.000,00 – Rp 150.000,00. Oleh sebab itu, analisis perhitungan dengan metode Mamdani pada FIS merupakan metode pengolahan data yang actual dan dapat digunakan oleh penjahit agar mendapatkan harga yang tepat.
Co-Authors A.N.M Salman Afsah Novita Sari Faizah H Hendy Hendy Kiki A. Sugeng Siti Nurrosyidah Sujarwo Suwandri Nur Alif