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All Journal Electronic Journal of Graph Theory and Applications (EJGTA) Indonesian Journal of Mathematics and Natural Sciences Sainteknol : Jurnal Sains dan Teknologi International Journal of Advances in Intelligent Informatics Educational Management Humanis : Jurnal Ilmu-Ilmu Sosial dan Humaniora PROFIT Unnes Journal of Mathematics Education Research Journal of Primary Education Symmetry: Pasundan Journal of Research in Mathematics Learning and Education M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Imajiner: Jurnal Matematika dan Pendidikan Matematika Journal Evaluation in Education (JEE) Unnes Journal of Mathematics Proceeding ISETH (International Summit on Science, Technology, and Humanity)
Isnaini Rosyida, Isnaini
Department Of Mathematics, Universitas Negeri Semarang, Semarang, Indonesia
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Social Sciences Other

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The Effectiveness of Auditory, Intellectually and Repetition Learning with RME Approach to Students Mathematical Communication Ability Nisarohmah, Nur Ilmia; Rochmad, Rochmad; Rosyida, Isnaini
Journal of Primary Education Vol 10 No 2 (2021): June 2021
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpe.v10i2.46315

Abstract

Mathematical communication ability is the ability to model mathematical forms, explain and make questions, and develop arguments. Auditory, Intelectually, and Repetition (AIR) learning facilitates to improve students' mathematical abilities. The purpose of this study was to analyse the effectiveness of auditory, intellectually, repetition learning with a Realistic Mathematics Education (RME) approach on students' mathematical communication ability. This research uses mixed methods with sequential explanatory design. The sampling technique is used by means of cluster random sampling. Data obtained by using the test method, interviews, and observations. Quantitative data analysis was carried out using the t test, the mean difference test, and the proportion test. Based on the results of the study, it shows that the mathematical communication ability of students who use AIR learning with the RME approach on average reach the actual completion limit and classical completion. Students who use auditory, intellectually, repetition learning with a realistic mathematics education approach have better mathematical abilities than students who are taught using problem-based learning. The ability to present sketches, use mathematical notation, then complete and conclude correctly are performed by high mathematical communication skills students. For students with moderate mathematical communication skills, they are quite capable of sketching pictures, applying mathematical notation. Then, students who have low mathematical communication skills are quite capable of sketching pictures, writing mathematical notation. So, it can be concluded that the application of AIR learning with RME approach is effective on students' mathematical communication ability than PBL learning.
Penyelesaian Masalah Pewarnaan pada Graf dengan Algoritma Genetika Anggraini, Lana Aristya; Rosyida, Isnaini; Asih, Tri Sri Noor
Unnes Journal of Mathematics Vol 8 No 1 (2019)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v8i1.18659

Abstract

Pada penelitian ini, dijelaskan langkah-langkah matematis tentang penyelesaian masalah pewarnaan graf (graph colouring) dengan menggunakan Algoritma Genetika. Langkah – langkah tersebut meliputi konstruksi nilai fitness, proses crossover, dan proses mutasi pada Algoritma Genetika untuk masalah pewarnaan graf. Untuk menyelesaikan masalah pewarnaan graf dengan Algoritma Genetika, dilakukan pengkodean kromosom berbentuk array. Kemudian kromosom tersebut dikenakan operator seleksi dengan metode roda roullet, crossover satu titik dan mutasi satu gen sehingga menjadi populasi baru. Populasi baru yang terbentuk kemudian dievaluasi dengan konstruksi nilai fitness yang dibangun untuk meminimalisir kesalahan pewarnaan dan menemukan minimal warna. Proses tersebut dilakukan hingga didapatkan generasi yang memuat penyelesaian pewarnaan graf. Penyelesaian pewarnaan graf merupakan pelabelan titik dengan minimal warna dan nol kesalahan pewarnaan. Pada penelitian ini ditambahkan rancangan program dengan tertentu untuk evaluasi nilai fitness, operator crossover dan mutasi telah berhasil dibuat.
IMPLEMENTASI MODEL FUZZY-WAVELET DAN FIS METODE MAMDANI DALAM PREDIKSI NILAI TUKAR EUR/IDR Kharomah, Siti Ismiatul; Rosyida, Isnaini; Mastur, Zaenuri
Unnes Journal of Mathematics Vol 8 No 2 (2019)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v8i2.28214

Abstract

Penelitian ini bertujuan untuk mengetahui hasil model fuzzy-wavelet dalam memprediksi nilai tukar EUR/IDR dan tingkat akurasi model tersebut. Dengan mengambil data time series mingguan nilai tukar EUR/IDR 128 minggu terakhir, Model fuzzy-wavelet merupakan penggabungan dari wavelet dan fuzzy. Pemodelan fuzzy-wavelet diawali dengan transformasi wavelet menggunakan (Maximal Overlap Discrete Wavelet Transform) MODWT mother haar sebagai pre-prosesing dan hasil MODWT digunakan sebagai input dalam sistem inferensi fuzzy. Pemilihan input ditentukan berdasarkan plot (Autocorrelation Function) ACF dan aturan fuzzy ditentukan dengan metode table look-up scheme. Sistem inferensi fuzzy yang digunakan Mamdani dengan fungsi implikasi min dan komposisi antar aturan max. Selanjutnya himpunan fuzzy yang diperoleh dari proses inferensi diolah kembali menggunakan defuzzifikasi centroid untuk dijadikan bilangan tegas sebagai hasil dari prediksi nilai tukar EUR/IDR. Dengan semesta pembicaraan variabel input dan output yang sama, dibentuk 2 Model yaitu Model 1 menggunakan 9 himpunan fuzzy dan Model 2 menggunakan 5 himpunan fuzzy. Nilai MAPE dihitung untuk mengetahui keakuratan pada tiap model dan menentukan model terbaik. Hasil dari penelitian menunjukkan bahwa Model 1 menghasilkan nilai MAPE sebesar 0,85% dan 9 himpunan fuzzy dengan 12 variabel input. Model 1 merupakan model yang paling tepat untuk prediksi nilai tukar EUR/IDR dengan 128 data skala mingguan. This study aims to determine the results of the fuzzy-wavelet model in predicting the EUR / IDR exchange rate and the accuracy of the model. By taking the last week's EUR / IDR 128 week exchange rate data series, the fuzzy-wavelet model is a combination of wavelets and fuzzy. Fuzzy-wavelet modeling begins with a wavelet transformation using the mother haar (Maximal Overlap Discrete Wavelet Transform) MODWT as a pre-processing and the MODWT results are used as inputs in the fuzzy inference system. The selection of inputs is determined based on the plot (Autocorrelation Function) ACF and fuzzy rules are determined by the table look-up scheme method. The fuzzy inference system used by Mamdani with the min implication function and composition between rules max. Furthermore, the fuzzy set obtained from the inference process is reprocessed using the defuzzification of the centroid to become a firm number as a result of the predicted EUR / IDR exchange rate. With the same universe of input and output variables, 2 models are formed, namely Model 1 uses 9 fuzzy sets and Model 2 uses 5 fuzzy sets. The MAPE value is calculated to determine the accuracy of each model and determine the best model. The results of the study show that Model 1 produces MAPE values ​​of 0.85% and 9 fuzzy sets with 12 input variables. Model 1 is the most appropriate model for the prediction of the EUR / IDR exchange rate with 128 weekly scale data.
NILAI KETAKTERATURAN SISI TOTAL PADA GRAF AMALGAMASI SUBDIVISI GRAF DOVETAIL Nurdini, Eka; Rosyida, Isnaini; Mulyono, Mulyono
Unnes Journal of Mathematics Vol 9 No 1 (2020)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v9i1.28719

Abstract

Given a graph G(V,E) with a non-empty set V of vertices and a set E of edges. A total labelling λ:V∪E→{1,2,…,k} is called an edge irregular total labelling if the weight of every edge is distinct. The weight of an edge e, under the total labelling λ, is the sum of label of edge e and all labels of vertices that are incident to e. In other words, w(xy)=λ(xy)+λ(x)+λ(y). The total edge irregularity strength of G, denoted by tes(G) is the minimum k used to label graph G with the edge irregular total labelling. In this paper, authors investigate the total edge irregularity strength of Amalgamation between Subdivision of Dovetail graph with pendant vertices and cycle graph (〖SD〗_n^n,x)*(C_(3n-3),z). The results of this research are tes((〖SD〗_n^n,x)*(C_(3n-3),z))=⌈(9n-3)/3⌉.
NILAI KETAKTERATURAN SISI TOTAL PADA GRAF RANTAI HENDECAGON DAN GRAF RANTAI HENDECAGON DENGAN SATU SISI PENDANT Widiantomo, Gilar Ajie; Rosyida, Isnaini
Unnes Journal of Mathematics Vol 9 No 2 (2020)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v9i2.34495

Abstract

PENGOPTIMALAN RUTE DISTRIBUSI PRODUK TISU DI CV MAPLE SEMARANG DENGAN MENGGUNAKAN METODE SAVING MATRIX DAN NEAREST INSERTION Suparmi, Suparmi; Suyitno, Hardi; Rosyida, Isnaini
Unnes Journal of Mathematics Vol 9 No 2 (2020)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v9i2.37849

Abstract

Distribusi merupakan salah satu aspek penting dalam pemasaran. Permasalahan distribusi termasuk dalam permasalahan Capacitated Vehicle Routing Problem (CVRP). CVRP dapat diselesaikan dengan beberapa metode diantaranya adalah metode saving marix dan nearest insertion. Tujuan dalam penelitian ini adalah menganalisis penyelesaian rute pendistribusian tisu dari depot ke pelanggan dan kembali ke depot dengan menggunakan metode saving matrix dan nearest insertion. Pencarian rute tersebut dilakukan secara hitung manual, selanjutnya akan ditentukan keefektifan dari penggunaan kedua metode tersebut. Pengambilan data dilakukan dengan metode observasi dan wawancara secara langsung dan menggunakan google maps untuk menentukan jarak dari depot/distributor CV Maple Semarang ke pelanggan-pelanggan. Dari penelitian ini solusi dengan menggunakan metode saving matrix diperoleh jarak minimal sebesar 63,8 km dan metode nearest insertion diperoleh jarak minimal sebesar 60,5 km. Dengan demikian dapat disimpulkan bahwa rute yang terbentuk dengan metode nearest insertion lebih efektif dibandingkan dengan menggunakan metode saving matrix. Distribution is an important aspect of marketing. Distribution problems are included in the Capacitated Vehicle Routing Problem (CVRP) problem. CVRP can be solved by several methods including the saving matrix and nearest insertion methods. The purpose of this study was to analyze the completion of tissue distribution routes from the depot to the customer and return to the depot using the saving matrix and nearest insertion methods. The seeking for the route is done manually, then the effectiveness of the two methods will be determined. Data collection is done by direct observation and interview methods and using google maps to determine the distance from the depot/distributor CV Maple Semarang customers. From this study the solution using the saving matrix method obtained a minimum distance of 63.8 km and the nearest insertion method obtained a minimum distance of 60.5 km. Thus it can be concluded that the route formed by the nearest insertion method is more effective than using the saving matrix method.
Totally irregular total labeling of some caterpillar graphs Diari Indriati; W. Widodo; Indah E. Wijayanti; Kiki A. Sugeng; Isnaini Rosyida
Electronic Journal of Graph Theory and Applications (EJGTA) Vol 8, No 2 (2020): Electronic Journal of Graph Theory and Applications
Publisher : GTA Research Group, Univ. Newcastle, Indonesian Combinatorics Society and ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/ejgta.2020.8.2.5

Abstract

Assume that G(V,E) is a graph with V and E as its vertex and edge sets, respectively. We have G is simple, connected, and undirected. Given a function λ from a union of V and E into a set of k-integers from 1 until k. We call the function λ as a totally irregular total k-labeling if the set of weights of vertices and edges consists of different numbers. For any u ∈ V, we have a weight wt(u)=λ(u)+ ∑{uy ∈ E} λ(uy). Also, it is defined a weight wt(e)= λ(u)+ λ(uv) + λ(v) for each e=uv ∈ E. A minimum k used in k-total labeling λ is named as a total irregularity strength of G, symbolized by ts(G). We discuss results on ts of some caterpillar graphs in this paper. The results are ts(S{p,2,2,q}) = ⌈ (p+q-1)/2 ⌉ for p, q greater than or equal to 3, while ts(S{p,2,2,2,p}) = ⌈(2p-1)/2 ⌉, p ≥ 4.
Coloring picture fuzzy graphs through their cuts and its computation Isnaini Rosyida; Suryono Suryono
International Journal of Advances in Intelligent Informatics Vol 7, No 1 (2021): March 2021
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/ijain.v7i1.612

Abstract

In a fuzzy set (FS), there is a concept of alpha-cuts of the FS for alpha in [0,1]. Further, this concept was extended into (alpha,delta)-cuts in an intuitionistic fuzzy set (IFS) for delta in [0,1]. One of the expansions of FS and IFS is the picture fuzzy set (PFS). Hence, the concept of (alpha,delta)-cuts was developed into (alpha,delta,beta)-cuts in a PFS where beta is an element of [0,1]. Since a picture fuzzy graph (PFG) consists of picture fuzzy vertex or edge sets or both of them, we have an idea to construct the notion of the (alpha,delta,beta)-cuts in a PFG. The steps used in this paper are developing theories and algorithms. The objectives in this research are to construct the concept of (alpha,delta,beta)-cuts in picture fuzzy graphs (PFGs), to construct the (alpha,delta,beta)-cuts coloring of PFGs, and to design an algorithm for finding the cut chromatic numbers of PFGs. The first result is a definition of the (alpha,delta,beta)-cut in picture fuzzy graphs (PFGs) where (alpha,delta,beta) are elements of a level set of the PFGs. Further, some properties of the cuts are proved. The second result is a concept of PFG coloring and the chromatic number of PFG based on the cuts. The third result is an algorithm to find the cuts and the chromatic numbers of PFGs. Finally, an evaluation of the algorithm is done through Matlab programming. This research could be used to solve some problems related to theories and applications of PFGs.
DETERMINAN YANG MEMPENGARUHI PERTIMBANGAN AUDIT DENGAN KOMPLEKSITAS TUGAS SEBAGAI VARIABEL MODERASI INSPEKTORAT KABUPATEN BOJONEGORO Rosyida, Isnaini Anniswati; Hwihanus, Hwihanus; Riyadi, Slamet
HUMANIS: Jurnal Ilmu-Ilmu Sosial dan Humaniora Vol 16 No 2 (2024): Juli
Publisher : LPPM UNISDA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/humanis.v16i2.5605

Abstract

Penelitian ini bertujuan untuk menguji dan mendapatkan bukti empiris tentang pengaruh pengalaman audit, efikasi diri, religiusitas, dan tekanan ketaatan terhadap pertimbangan audit dengan kompleksitas tugas sebagai variabel moderasi.Penelitian ini menggunakan pendekatan kuantitatif dengan metode analisis data partial least squares (PLS). Populasi penelitian adalah auditor inspektorat di Bojonegoro dengan metode sampling berupa purposive sampling. Data penelitian diperoleh dengan menyebar kuesioner. Hasil penelitian menunjukkan bahwa pengalaman audit berpengaruh negatif signifikan terhadap pertimbangan audit. Efikasi diri dan religiusitas berpengaruh positif signifikan terhadap pertimbangan audit. Tekanan ketaatan tidak berpengaruh terhadap pertimbangan audit. Kompleksitas tugas tidak dapat memoderasi pengaruh pengalaman audit dan efikasi diri terhadap pertimbangan audit. Penelitian ini menambahkan religiusitas sebagai pengembangan determinan pertimbangan audit.
STUDI LITERATUR: KOMPETENSI AUDITOR DAN KEAHLIAN SISTEM INFORMASI AUDITOR TERHADAP PEMBUKTIAN FRAUD Rosyida, Isnaini Anniswati
Pro-fit Vol 15 No 2 (2024): Juli
Publisher : Fakultas Ekonomi

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

Abstract

This literature review discusses the application of financial financing and SWOT analysis in the digital creative industry in the Industrial Revolution 4.0 era. SWOT analysis and financial financing have become important tools for companies to understand the internal strengths, weaknesses, opportunities, and threats that affect their business. In the ever-growing digital creative industry, SWOT analysis plays a crucial role in helping companies identify weak points that need to be fixed and new opportunities that can be exploited. This literature review concludes that the effective application of SWOT analysis allows companies to develop relevant financial potential and position themselves to compete better in a competitive market. However, companies need to understand that SWOT analysis is a dynamic tool that requires continuous updating and adjustment according to changes in the business environment. Therefore, the advice for companies is to continuously monitor industry trends, develop a deep understanding of consumer needs and preferences, and invest in the development of relevant technical and creative expertise. Thus, companies can utilize SWOT analysis and financial financing effectively as an integral part of their strategy to maintain competitive advantage in the Industrial Revolution 4.0 era.
Co-Authors - Hwihanus Abdurahim, Abdurahim Aini, Aulia Hurul Anggraini, Lana Aristya Arifah, Nafiqotun Asih, Tri Sri Noor Aula, Maulida Fatma Reza Baihaqi, Muhamad Adzib Budi Waluya, St. Danieryanto, Erlia Dewi, Nuraliftsa Maharani Diari Indriati Fitriyani, Eka Retna Hardi Suyitno Have Zulkarnaen Huda, Muhamad Nurul Indah E. Wijayanti Iwan junaedi Junaedi , Iwan Kharomah, Siti Ismiatul Kiki A. Sugeng Kristina Wijayanti Mashuri Mashuri Mulyono Mulyono Nisarohmah, Nur Ilmia Noriza Munahefi, Detalia Novi Darmayanti Nurdini, Eka Nurhalisha, Erina Nurkaromah Dwidayati, Nurkaromah Priscilia, Priscilia Monica Praneswari Rachmani Dewi, Nuriana Radian Sri Rama Riawati, Beti Riyadhotul Janah, Siti Rochmad - Safitri, Fristy Aulia Salsadina, Nida Alifa Scolastika Mariani Siti Muawanah Slamet Riyadi Suparmi Suparmi Suryonegoro, Bayu Murti Suryono Suryono Susanti, Desmiani Sutri Handayani W. Widodo Wardono Wardono Widiantomo, Gilar Ajie Wiharno, Wiharno Zaenuri Mastur