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All Journal Indonesian Journal of Mathematics and Natural Sciences Jurnal Ilmiah Teknik Industri Journal of Biology Education Buletin Sumber Daya Geologi Business and Finance Journal
Rina Wahyuningsih, Rina
Jurusan Matematika, Universitas Islam Negeri Sunan Kalijaga, Jln. Adi Sucipto no. 1, Jogjakarta
Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mathematics

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PENENTUAN MATCHING MAKSIMUM PADA GRAF BIPARTIT BERBOBOT MENGGUNAKAN METODE HUNGARIAN Abrori, Muchammad; Wahyuningsih, Rina
Jurnal Ilmiah Teknik Industri Vol. 11, No. 1, Juni 2012
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Matching is a part of graph theory that discuss to make a pair, that can be used to solve many problems; one of them is the assignment problem. The assignment problem is to make a pair problem for n as the employees and for n as the duties, therefore each employee gets one duty, and each duty is given exactly for each employee. The assignment problem can be solved by determining the matching in weighted bipartite graph through Hungarian Method. It can be determined from the alternating tree of a formed edge. If there is augmenting path, that augmenting path is used to form the more number of matching. If the formed path is alternating path, therefore the process is labeling the new node until finding the augmenting vertices. This matching is called as the perfect matching with the number of maximum weighed side in weighted bipartite graphs. The result matching is the solution for the assignment problem by giving an employee with a duty.
PEMODELAN RESEVOIR PANAS BUMI DAERAH DUA SAUDARA, KOTA BITUNG, PROVINSI SULAWESI UTARA, DENGAN MENGGUNAKAN INVERSI 2-D DATA MAGNETOTELURIK Zarkasyi, Ahmad; Wahyuningsih, Rina
Buletin Sumber Daya Geologi Vol 13, No 2 (2018): Buletin Sumber Daya Geologi
Publisher : Buletin Sumber Daya Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1474.23 KB)

Abstract

Hasil survei geologi, geokimia dan geofisika gaya berat dan TDEM, di daerah panas bumi Dua Saudara, Kota Bitung, Provinsi Sulawesi Utara belum dapat secara akurat mendelineasi area dan dimensi prospek panas bumi di daerah ini. Sistem panas bumi di daerah ini berasosiasi dengan aktivitas vulkanik Gunung Tangkoko-Batuangus berumur Kuarter. Litologi daerah ini didominasi oleh endapan vulkanik berupa piroklastik dan lava. Selain batuan teralterasi, mata air panas muncul dengan temperatur 34°C -61°C, dari fluida air panas didapat penghitungan temperatur bawah permukaan mencapai 150°C. Pemodelan 2D inversi dilakukan pada data survei Magnetotelurik di 35 titik ukur dengan spasi 1000 hingga 1500 m yang difokuskan di lokasi manifestasi mata air panas. Hasil inversi menggunakan perangkat lunak WinGLink menunjukkan adanya lapisan resistivitas rendah (<10 ohm-m) yang ditafsirkan sebagai lapisan penudung dari system panas bumi Dua Saudara. Lapisan ini berasosiasi dengan lapisan konduktif yang terletak pada kedalaman sekitar 750 meter hingga 1000 meter. Zona resistivitas tinggi (25-100 ohm-m) ditafsirkan sebagai batuan panas yang kemungkinan adalah reservoir dari sistem tersebut. Dari model ini disimpulkan bahwa daerah survei masih merupakan zona outflow, sedangkan zona upflow diduga ke arah tenggara menuju Gunung Dua Saudara dan Gunung Tangkoko.
PENENTUAN MATCHING MAKSIMUM PADA GRAF BIPARTIT BERBOBOT MENGGUNAKAN METODE HUNGARIAN Abrori, Muchammad; Wahyuningsih, Rina
Jurnal Ilmiah Teknik Industri Vol. 11, No. 1, Juni 2012
Publisher : Muhammadiyah University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v11i1.984

Abstract

Matching is a part of graph theory that discuss to make a pair, that can be used to solve many problems; one of them is the assignment problem. The assignment problem is to make a pair problem for n as the employees and for n as the duties, therefore each employee gets one duty, and each duty is given exactly for each employee. The assignment problem can be solved by determining the matching in weighted bipartite graph through Hungarian Method. It can be determined from the alternating tree of a formed edge. If there is augmenting path, that augmenting path is used to form the more number of matching. If the formed path is alternating path, therefore the process is labeling the new node until finding the augmenting vertices. This matching is called as the perfect matching with the number of maximum weighed side in weighted bipartite graphs. The result matching is the solution for the assignment problem by giving an employee with a duty.
PEMODELAN INVERSI 2-D DAN 3-D MENGGUNAKAN DATA MAGNETOTELURIK DAERAH PANAS BUMI MASSEPE KABUPATEN SIDENRENG RAPPANG, PROVINSI SULAWESI SELATAN Joni, Wiwid; Wahyuningsih, Rina
Buletin Sumber Daya Geologi Vol 14, No 2 (2019): Buletin Sumber Daya Geologi
Publisher : Buletin Sumber Daya Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (11657.643 KB)

Abstract

Pemodelan inversi 2-D dan 3-D data magnetotelurik (MT) dari daerah panas bumi Massepe memberikan hasil delineasi area prospek yang lebih jelas yaitu di sekitar mata air panas Pajalele seluas ± 8 km2. Zona upflow sistem panas bumi Massepe ini diperlihatkan oleh adanya anomali tahanan jenis rendah < 20 Ohm-m di kedalaman 250 m yang semakin tinggi mulai kedalaman 700 m s.d. 800 m. Zona transisi nilai tahanan jenis ini diduga sebagai kedalaman puncak reservoir sistem panas bumi Massepe yaitu di kedalaman 800 m. Anomali tahanan jenis data magnetotelurik juga menunjukkan pola yang sesuai dengan keberadaan struktur geologi di daerah ini terutama struktur Sesar Massepe berarah relatif utara-selatan yang mengontrol kemunculan mata air panas di Pajalele dan Alakuang.
Eksplorasi Keanekaragaman Kupu-Kupu (Lepidoptera) dan Status Konservasinya di Taman Nasional Gunung Merbabu Jawa Tengah Mukaromah, Afrinda; Lutfiana, Izatul Husna, Khanifa Nafis; Wahyuningsih, Rina
Indonesian Journal of Mathematics and Natural Sciences Vol 42, No 1 (2019): April 2019
Publisher : Universitas Negeri Semarang

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Abstract

Kawasan hutan Gunung Merbabu merupakan kawasan konservasi dengan nama Taman Nasional Gunung Merbabu (TNGMb) untuk melindungi seluruh komponen ekosistem, termasuk kupu-kupu. Penelitian dilakukan untuk menganalisis potensi keanekaragaman jenis, kekayaan jenis, kemerataan jenis, dominansi, proporsi dan kelimpahan kupu-kupu endemik Jawa di TNGMb khususnya di wilayah Air Terjun Umbul Songo. Pengambilan sampel melalui metode Garis Transek dengan teknik sweeping menggunakan jaring kupu-kupu, mengikuti garis transek meliputi area DAS (Daerah Aliran Sungai), area lahan terbuka, serta area hutan pinus. Data dianalisis dengan indeks keanekaragaman Shanon-Wiener (H’), indeks kekayaan jenis Margalef (DMg), indeks kemerataan jenis (E) dan indeks Dominansi Simpson (D). Hasil analisis data menunjukan bahwa TNGMb memiliki potensi kupu-kupu dengan keanekaragaman jenis sedang (1<H’<3), kemerataan sedang (0,3-0,6), dan dominansi rendah (0,01-0,30). Ditemukan tiga spesies endemik Jawa dengan kategori rare species (individu ditemukan kurang dari 10) yaitu Ypthima nigricans, Mycalesis sudra, dan Cyrestis lutea. Hutan di TNGMb berpotensi untuk mendukung keberadaan spesies kupu-kupu endemik Jawa.
PEMODELAN INVERSI 2-D DAN 3-D MENGGUNAKAN DATA MAGNETOTELURIK DAERAH PANAS BUMI MASSEPE KABUPATEN SIDENRENG RAPPANG, PROVINSI SULAWESI SELATAN Joni, Wiwid; Wahyuningsih, Rina
Buletin Sumber Daya Geologi Vol. 14 No. 2 (2019): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (11657.643 KB) | DOI: 10.47599/bsdg.v14i2.248

Abstract

Pemodelan inversi 2-D dan 3-D data magnetotelurik (MT) dari daerah panas bumi Massepe memberikan hasil delineasi area prospek yang lebih jelas yaitu di sekitar mata air panas Pajalele seluas ± 8 km2. Zona upflow sistem panas bumi Massepe ini diperlihatkan oleh adanya anomali tahanan jenis rendah < 20 Ohm-m di kedalaman 250 m yang semakin tinggi mulai kedalaman 700 m s.d. 800 m. Zona transisi nilai tahanan jenis ini diduga sebagai kedalaman puncak reservoir sistem panas bumi Massepe yaitu di kedalaman 800 m. Anomali tahanan jenis data magnetotelurik juga menunjukkan pola yang sesuai dengan keberadaan struktur geologi di daerah ini terutama struktur Sesar Massepe berarah relatif utara-selatan yang mengontrol kemunculan mata air panas di Pajalele dan Alakuang.
DEVELOPMENT OF BIOMAGZ BASED ON LOCAL WISDOM ON BIODIVERSITY MATERIAL IN HIGH SCHOOL Wahyuningsih, Rina; Sukaesih, Sri; Peniati, Endah
Journal of Biology Education Vol 8 No 2 (2019): August 2019
Publisher : FMIPA UNNES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbe.v8i2.27302

Abstract

This study aims to describe the types of learning resources used previously at SMA N 3 Salatiga, describe the feasibility of Biomagz Based on Local Wisdom, and test the effectiveness of Biomagz Based on Local Wisdom on learning outcomes and student?s environmental care attitude. The method used is research development (R &amp; D). Products are validated by material and media validators, and revised before being tested. Small-scale trials (readability test) use 10 students from class X MIPA 1, while large-scale trials use class X MIPA 2 with the experimental design Pre-experimental Design with the type of Pre-test and Post-test One Group Design. The results of the study show the variety of learning resources used previously including biological, teacher, internet, biology books, and the environment around students. The Feasibility of Biomagz Based on Local Wisdom obtained an average score of 92.21% with very decent criteria. Large-scale trials with an average N-gain value 0.49 in the medium category, the average classical completeness is 85.29%, and the environment care attitude of students is based on the observation result of 92.9% with a high category and the result of the inter-student assessment is 86, 18% with a high category. Based on the results of this study, it can be concluded that Biomagz Based Local Wisdom is well worth and effective on learning outcomes and student?s environmental care attitude.
Development of Biomagz Based on Local Wisdom on Biodiversity Material in High School Wahyuningsih, Rina; Sukaesih, Sri; Peniati, Endah
Journal of Biology Education Vol 8 No 2 (2019): August 2019
Publisher : FMIPA UNNES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbe.v8i2.27302

Abstract

This study aims to describe the types of learning resources used previously at SMA N 3 Salatiga, describe the feasibility of Biomagz Based on Local Wisdom, and test the effectiveness of Biomagz Based on Local Wisdom on learning outcomes and student’s environmental care attitude. The method used is research development (R & D). Products are validated by material and media validators, and revised before being tested. Small-scale trials (readability test) use 10 students from class X MIPA 1, while large-scale trials use class X MIPA 2 with the experimental design Pre-experimental Design with the type of Pre-test and Post-test One Group Design. The results of the study show the variety of learning resources used previously including biological, teacher, internet, biology books, and the environment around students. The Feasibility of Biomagz Based on Local Wisdom obtained an average score of 92.21% with very decent criteria. Large-scale trials with an average N-gain value 0.49 in the medium category, the average classical completeness is 85.29%, and the environment care attitude of students is based on the observation result of 92.9% with a high category and the result of the inter-student assessment is 86, 18% with a high category. Based on the results of this study, it can be concluded that Biomagz Based Local Wisdom is well worth and effective on learning outcomes and student’s environmental care attitude.
COMPARISON OF MARKET BASKET ANALYSIS METHOD USING APRIORI ALGORITHM, FREQUENT PATTERN GROWTH (FP- GROWTH) AND EQUIVALENCE CLASS TRANSFORMATION (ECLAT) (CASE STUDY: SUPERMARKET “X” TRANSACTION DATA FOR 2021) Wahyuningsih, Rina; Suharsono, Agus; Iriawan, Nur
Jurnal Bisnis dan Keuangan Vol 8 No 2 (2023): Business and Finance Journal
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/bfj.v8i2.5226

Abstract

The retail industry continues to grow and develop in Indonesia. The retail sector as a provider of goods used in everyday life has long started digital transformation in its business. Digital technology helps the retail industry collect valuable customer data. Business analytic is the use of data, information technology and statistical analysis, which is used to obtain information about a business and make decisions based on facts. Business analytic turns data into steps or actions in the context of making business decisions. Consumer needs and purchasing behavior can be predicted with big data-based technology. Association Rule is a technique in data mining to find the relationship between items in an item set combination. One of the utilizations of the association rule method is market basket analysis. Algorithms that can be used to analyze consumer purchasing patterns include the Apriori algorithm, Frequent Pattern Growth (FP-Growth) which represents a database structure in a horizontal format, and the Equivalence Class Transformation (ECLAT) algorithm which represents a vertical data format. In addition, this research will first analyze the complexity of the algorithm based on the time complexity in running the algorithm. This analysis uses these three algorithms, which are applied to Supermarket "X" transaction data in 2021, namely 136,202 transactions. The measure of goodness that is used to find out the best algorithm uses support and confidence values. The results show that the ECLAT algorithm is the most superior algorithm compared to the others based on the execution time required by the algorithm. The support value used in forming associations in the ECLAT algorithm is 1%, resulting in 19 rules. From the results of these rules, the highest support value was generated by the purchase of Indomie goreng special and Indomie ayam bawang, where as many as 1,362 shopping transactions bought these two items together or 2.71% of the total transactions.
PEMODELAN RESEVOIR PANAS BUMI DAERAH DUA SAUDARA, KOTA BITUNG, PROVINSI SULAWESI UTARA, DENGAN MENGGUNAKAN INVERSI 2-D DATA MAGNETOTELURIK Zarkasyi, Ahmad; Wahyuningsih, Rina
Buletin Sumber Daya Geologi Vol 13 No 2 (2018): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v13i2.226

Abstract

Hasil survei geologi, geokimia dan geofisika gaya berat dan TDEM, di daerah panas bumi Dua Saudara, Kota Bitung, Provinsi Sulawesi Utara belum dapat secara akurat mendelineasi area dan dimensi prospek panas bumi di daerah ini. Sistem panas bumi di daerah ini berasosiasi dengan aktivitas vulkanik Gunung Tangkoko-Batuangus berumur Kuarter. Litologi daerah ini didominasi oleh endapan vulkanik berupa piroklastik dan lava. Selain batuan teralterasi, mata air panas muncul dengan temperatur 34°C -61°C, dari fluida air panas didapat penghitungan temperatur bawah permukaan mencapai 150°C. Pemodelan 2D inversi dilakukan pada data survei Magnetotelurik di 35 titik ukur dengan spasi 1000 hingga 1500 m yang difokuskan di lokasi manifestasi mata air panas. Hasil inversi menggunakan perangkat lunak WinGLink menunjukkan adanya lapisan resistivitas rendah (<10 ohm-m) yang ditafsirkan sebagai lapisan penudung dari system panas bumi Dua Saudara. Lapisan ini berasosiasi dengan lapisan konduktif yang terletak pada kedalaman sekitar 750 meter hingga 1000 meter. Zona resistivitas tinggi (25-100 ohm-m) ditafsirkan sebagai batuan panas yang kemungkinan adalah reservoir dari sistem tersebut. Dari model ini disimpulkan bahwa daerah survei masih merupakan zona outflow, sedangkan zona upflow diduga ke arah tenggara menuju Gunung Dua Saudara dan Gunung Tangkoko.
Co-Authors Agus Suharsono Endah Peniati Joni, Wiwid Lutfiana, Izatul Husna, Khanifa Nafis Muchammad Abrori Mukaromah, Afrinda Nur Iriawan Sri Sukaesih Zarkasyi, Ahmad Zarkasyi, Ahmad