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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Gizi dan Pangan FORUM STATISTIKA DAN KOMPUTASI SAINSMAT CAUCHY: Jurnal Matematika Murni dan Aplikasi JAM : Jurnal Aplikasi Manajemen JUITA : Jurnal Informatika Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Forum Geografi Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktik dalam Bidang Pendidikan dan Ilmu Geografi Sinkron : Jurnal dan Penelitian Teknik Informatika BAREKENG: Jurnal Ilmu Matematika dan Terapan Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya Eksakta : Berkala Ilmiah Bidang MIPA STI Policy and Management Journal SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam Xplore: Journal of Statistics Scientific Journal of Informatics Media Penelitian dan Pengembangan Kesehatan Indonesian Journal of Statistics and Its Applications
Muhammad Nur Aidi
Department Of Statistics, Faculty Of Mathematics And Sciences, IPB University, Bogor 16680, Indonesia
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Transportation Other

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Analysis of Geographically and Temporally Weighted Regression (GTWR) GRDP of the Construction Sector in Java Island Haryanto, Sugi; Aidi, Muhammad Nur; Djuraidah, Anik
Forum Geografi Vol 33, No 1 (2019): July 2019
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v33i1.7332

Abstract

The construction sector is one of the sectors that have strategic value in the national economy. Economic activity in an area is measured using the Gross Regional Domestic Product (GRDP). The development of economic activities in the construction sector can be seen from the GRDP of the construction sector. The Geographically and Temporally Weighted Regression (GTWR) model is a development of the Geographically Weighted Regression (GWR) model taking into account the diversity of locations and times. This study used secondary data, namely the data of GRDP the construction sector as a response variable and four explanatory variables, namely the number of population, local revenue, area, and the number of construction establishments. The purpose of this study is to determine the factors that influence each regency/municipality and each year observing the GRDP of the construction sector in Java with the GTWR model. GTWR model is more effective to describe the value of GRDP the construction sector of regencies/municipalities in Java Island in 2010-2016. This is indicated by the decrease in values of Root Mean Square Error (RMSE), Mean Absolute Deviation (MAD), and the Mean Absolute Percentage Error (MAPE).
KAJIAN KOMPETISI TUMBUHAN EKSOTIK YANG BERSIFAT INVASIF TERHADAP POHON HUTAN PEGUNUNGAN ASLI TAMAN NASIONAL GUNUNG GEDE PANGRAN Budi Utomo; Cecep Kusmana; Sukisman Tjitrosemito; Muhammad Nur Aidi
Jurnal Manajemen Hutan Tropika Vol. 13 No. 1 (2007)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Up to now, montane rain forest of Gunung Gede-Pangrango National Park, faces problem in the form of invasion of exotic plant species into the area.  Location of the area that borders with various land uses, such as Botanical Garden and agricultural land, make it very susceptible toward invasion of plant species from outside the area.  The collapse of large trees which normally constitute a mechanism of natural regeneration, was in fact stimulating the development of exotic species, particularly those which were invasive, inside the area. The objective of this research was to test the competitive ability of endemic species, which in this case was represented by Cleystocalyx operculata and Mischocarpus pentapetalus, toward exotic plant species, represented by Austroeupatoriun inulaefolium and Passiflora ligularis, during 5 months of study.  Growth rate of exotic plant species, as well as the dry weight biomass, were larger than those of endemic species.  Indirect estimation of competitive ability showed that competitive ability (β) of endemic species were 4-5 times less, namely 0.0274 (for C. operculata) and 0.0251 (for M. pentapetalus); as compared with those of exotic species, namely 0.125 (for P. ligularis) and 0.1104 (for A. inulaefolium).  Direct test also proved that competitive ability (β) of endemic species was lower than that of exotic species, as shown by relative crowding value < 1.  Estimation of future competitive ability, using diagram of input/ output ratio, showed also the disability of endemic species to compete with exotic species, where position of input/output ratio points were parallel with equilibrium line y=x. Considering those facts, there is urgent need for controlling these invasive exotic species inside the National Park area to maintain the sustainability of biodiversity and regeneration of endemic species in montane rain forest of Gunung Gede–Pangrango National Park.
Realisasi titik-titik secara spasial diwujudkan dengan pola titik-titik tersebut dalam ruang.  Pola titik dalam ruang pada prinsipnya ada tiga macam, yakni pola titik spasial secara acak, pola titik spasial secara regular serta pola titik spasial secara kelompok. Tujuan penelitian ini adalah menentukan fungsi massa peluang yang menggambarkan sebaran titik spasial kelompok, melakukan simulasi perubahan ukuran grid pada metode kuadran terhadap nilai VMR serta perubahan pola titik spasial kelompok. Muhammad Nur Aidi
FORUM STATISTIKA DAN KOMPUTASI Vol. 14 No. 1 (2009)
Publisher : FORUM STATISTIKA DAN KOMPUTASI

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Abstract

Realisasi titik-titik secara spasial diwujudkan dengan pola titik-titik tersebut dalam ruang.  Pola titik dalam ruang pada prinsipnya ada tiga macam, yakni pola titik spasial secara acak, pola titik spasial secara regular serta pola titik spasial secara kelompok. Tujuan penelitian ini adalah menentukan fungsi massa peluang yang menggambarkan sebaran titik spasial kelompok, melakukan simulasi perubahan ukuran grid pada metode kuadran terhadap nilai VMR serta perubahan pola titik spasial kelompok. Langkah yang ditempuh adalah membangun fungsi massa peluang yang merupakan pembangkit sebaran spasial kelompok, serta melakukan simulasi pada analisis kuadran dengan membagi wilayah menjadi beberapa grid. Hasil yang ditunjukkan Sebaran spasial kelompok mempunyai fungsi massa peluang binomial negative serta nilai VMR > 1. Apabila Banyaknya Grid bersifat terbatas maka peurubahan banyaknya grid tidak merubah kesimpulan bahwa VMR > 1 yang artinya sebaran fungsi massa peluang binomial negative akan mempunyai sebaran titik spasial bersifat kelompok. Nilai VMR merupakan fungsi eksponensial terhadap banyaknya grid, yakni VMR= 4,976371 exp(-0,003138* banyaknya grid.
PENGGUNAAN RANTAI MARKOV UNTUK ANALISIS SPASIAL SERTA MODIFIKASINYA DARI SISTEM TERTUTUP KE SISTEM TERBUKA Muhammad Nur Aidi
FORUM STATISTIKA DAN KOMPUTASI Vol. 13 No. 1 (2008)
Publisher : FORUM STATISTIKA DAN KOMPUTASI

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Abstract

Model rantai Markov merupakan suatu konsep yang menarik untuk menggambarkan dan menganalisa kealamian suatu perubahan diakibatkkan oleh pergerakan state-state di atas, terkadang model Markov juga dipergunakan untuk meramalkan perubahan pada masa depan   Kata Kunci : Model Markov, Ekuilibrium, Matriks Fundamental
PERBAIKAN METODE KRIGING BIASA (ORDINARY KRIGING) MELALUI PEMECAHAN MATRIKS C MENJADI BEBERAPA ANAK MATRIKS NON OVERLAP UNTUK MEWAKILI DRIFT PADA PEUBAH SPASIAL Muhammad Nur Aidi
FORUM STATISTIKA DAN KOMPUTASI Vol. 12 No. 1 (2007)
Publisher : FORUM STATISTIKA DAN KOMPUTASI

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Abstract

Persoalan dalam pendugaan spasial dengan menggunakan konsep drift sering kali menemui kendala bila kondisi permukaan yang diduga bersifat anisotropik.  Pada kondisi anisotropik kuranglah tepat apabila hanya menggunakan satu model korelogram (variogram). Dalam tulisan ini dicoba area yang diteliti dibagi menjadi beberapa partisi (4 partisi) sehingga disusun empat model variogram untuk keseluruhan area.  Dari empat partisi tersebut dicari nilai-nilai total pembobot yang layak agar fungsi penduga menjadi tak bias.  Selanjutnya dilakukan perbandingan pendugaan nilai pada titik-titik yang tidak dilakukan pengukuran antara tanpa partisi dengan partisi.  Hasil pendugaan menunjukkan bahwa nilai dugaan sama dengan nilai sebenarnya baik yang tak dipartisi maupun yang dipartisi. Akan tetapi, nilai pendugaan yang dihasilkan dari area yang dipartisi lebih baik dibandingkan tanpa partisi.
CLUSTERING PROVINCE IN INDONESIA BY COMMUNICATION TECHNOLOGY RELATED VARIABLES Ahmad Nur Rohman; _ Erfiani; Muhammad Nur Aidi
FORUM STATISTIKA DAN KOMPUTASI Vol. 20 No. 2 (2015)
Publisher : FORUM STATISTIKA DAN KOMPUTASI

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Abstract

Technological developments in Indonesia growth rapidly. Almost all systems used in daily life have been using the technology. One of its technology is communication technology. It because communication technology is a important tool for send information. All was done in order to communicate easier and faster. It is therefore important to research the condition of the existing communication technology in Indonesia. Communications technology also one of the focus of the government in national development. But not easy to know the state of communication technology in Indonesia because Indonesia has a large region and different geographically. The purpose of this research was to determine the grouping of provinces in Indonesia to increase the communication sector in order to support national development. The method used in this research is cluster hierarchical analysis method and criterion of determining the best method and many cluster optimal use Cubic Clustering Criterion (CCC). The data used is secondary data from the Statisctics Indonesia (BPS) and the Ministry of Communication and Information. The results showed that the number of cluster based on related communication technology variables are 3 cluster which 1st cluster members consist of 21 provinces, 2nd cluster members consist of 7 provinces and 3rd cluster members consist of 3 provinces.Key words : Communications Technology, Cluster Analysis, Hierarchical Method, Cubic Clustering Criterion (CCC)
MODELLING OF FORECASTING MONTHLY INFLATION BY USING VARIMA AND GSTARIMA MODELS Andi Setiawan; Muhammad Nur Aidi; I Made Sumertajaya
FORUM STATISTIKA DAN KOMPUTASI Vol. 20 No. 2 (2015)
Publisher : FORUM STATISTIKA DAN KOMPUTASI

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Abstract

The model parameters could be different form the well to the factors of time and location. A general model of GSTAR can be used to establish model the inflation in some locations by using GSTARIMA model if time series data is self-contained autoregressive, differentiation, and moving averages. This study examines whether the effect of such locations on the GSTARIMA model is better than the VARIMA model that regardless of the location influences. The aim of this study is to establish two models of inflation six provincial capitals in Java using VARIMA model and GSTARIMA model with inverse distance weighting. Dummy variables have been used to overcome normality and white noise problems. The best forecasting of monthly inflation in provincial captitals in Java Island is GSTAR(1;1) with inverse distance weighting. It has smallest RMSE value of 0.9199.Key words : GSTARIMA, Inverse Distance, RMSE, VARIMA
Pola Tutupan, Penggunaan, Serta Tantangan Kebijakan Perlindungan Ekosistem Gambut di Kabupaten Bengkalis Sandhi Imam Maulana; Lailan Syaufina; Lilik Budi Prasetyo; Muhammad Nur Aidi
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 9 No. 3 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.3.549-565

Abstract

Since the issuance of Government Rule No. 71/2014 jo. No. 57/2016, there has been a wide debate, because those rules may trigger other problems such as food security, social, economic, political, as well as peatland cultivation security. Considering this issue, this study aims to analyze challenges in implementing peat protection policies as textually arranged in Government Rule No. 71/2014 jo. No. 57/2016, in Bengkalis Regency. Overall, in order to discuss both of rule in form and rule in use aspects, this study was conducted using maps overlay technique and content analysis on Government Rule No. 71/2014 jo. No. 57/2016. Based on those approaches, this study shows that there are four challanges in implementing previously mentioned peat ecosystem protectetion policies in Bengkalis Regency, particularly in regard to the measurement of damaged peatland criteria, frictions between protection incentives and pressure on peatland conversion, significant economic contraction, up to the emergence of new open access areas that often be illegally occupied and worsening peatland existing conditions. This finding implies that the government as the regulator in the implementation of peat ecosystem protection policies should open a wider room for policy improvements, in order provide a more balanced consideration to three important aspects of sustainable development, which is not only limited to environmental sustainability, but also covering both of social and economic sustainability.
Kajian Scientometrics: Analisis Jaringan Sosial pada Publikasi Internasional Indonesia Bidang Kimia Irene Muflikh Nadhiroh; Muhammad Nur Aidi; Bagus Sartono
STI Policy and Management Journal Vol 13, No 1 (2015): Warta KIML (Journal of S&T Policy and R&D Management)
Publisher : Center for Science and Technology Development Studies, Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.955 KB) | DOI: 10.14203/STIPM.2015.40

Abstract

The importance of the use of more precise methods in the management of R & D budget to encourage the development of a variety of methods based on the data in the R&D policymaking process. Scientometrics is one area of science that can be used in the management of R&D efforts in a more effective and efficient ways. Asociated with limited budgets and goals that must be achieved in the development of science and technology, the budget must be allocated to give a great impact on the development of Indonesia. Data of Indonesian international publications in Chemistry area of science was used in this study to assess the social network among authors of scientific paper in Indonesia. The objectives of this study are to provide a new method of the R&D budgd alocation process better in the future and provide policy recommendations related to the condition of social networks that has been studied. Networks among Indonesian authors in the internasional publication, especially in Chemistry area are still very fragmented, very few relationships that are formed between the authors. In addition the synergy between academia-industry-government is still less visible. Relationships between authors from different institutions are also still very little, the majority of authors writing with institution’s colleagues.Therefore, this study provides some policy recommendations, namely: i) providing wide space for academicians in Indonesia, both in university and in government R & D institutions and NGOs to collaborate; ii) the government is expected to be more proactive in communicating with the relevant academic research needs requiring for the livelihood of the people in the future; iii) the existence of incentives and rewards for the academia and the private sector to collaborate and produce a useful research; iv) the government provide greater opportunities for researchers in the private sector to collaborate with academician at universities and R&D institutions, both in the implementation of research, research funding, research infrastructure and the use of other research activities.
Pemodelan Data Kelahiran Anak Pertama Menggunakan Regresi Cox Proportional Hazard Mahfuz Hudori; Erfiani Erfiani; Muhammad Nur Aidi
SAINTIFIK Vol 7 No 1 (2021): Jurnal Saintifik: Jurnal Matematika, Sains, dan Pembelajarannya
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/saintifik.v7i1.279

Abstract

Setiap pasangan yang baru menikah memiliki waktu tunggu yang berbeda-beda untuk mendapatkan anak pertama. Perbedan waktu tunggu tersebut dapat disebabkan oleh adanya faktor internal atau eksternal dari pasangan yang baru menikah. Waktu yang dibutuhkan oleh setiap pasangan yang baru menikah sampai mendapatkan anak pertama merupakan bentuk dari survival time. Menganalisis hubungan antara survival time dan variabel bebas dapat dilakukan menggunakan model regresi cox proportional hazard. Berdasarkan penelitian yang dilakukan, variabel bebas yang memberikan pengaruh nyata (α=5%) terhadap waktu tunggu sampai mendapatkan anak pertama bagi pasangan yang baru menikah di Provinsi Lampung adalah variabel tempat tinggal, tingkat pendidikan, pengetahuan tentang kesehatan kehamilan dan usia pada saat menikah
Co-Authors . Erfiani Agus Mohamad Soleh Ahmad Nur Rohman Aji Hamim Wigena Akbar Rizki Anang Kurnia Andi Setiawan Anik Djuraidah Anis Dyah Rahmawati ASEP SAEFUDDIN Bagus Sartono Bayu Pranata, Bayu Budi Susetyo Budi Susetyo Budi Utomo Choirun Nisa Cynthia Wulandari Dwi Agustin Nuriani Sirodj Efriwati Efriwati Efriwati Efriwati Erfiani Erfiani Faqih Udin dan Jono M. Munandar Meivita Amelia Fildzah Hanum Syazwina Fitrah Ernawati Fitrah Ernawati Hapsari, Nimas Ayu Haq, Irvanal Hari Wijayanto Haryanto, Sugi Hikmah, Zetil I Made Sumertajaya Indahwati Irene Muflikh Nadhiroh Itasia Dina Sulvianti Khairani, Fitri Khairil Anwar Notodiputro La Ode Abdul Rahman La Ode Abdul Rahman Lailan Syaufina LILIK BUDIPRASETYO Lulu Mahdiyah Sandjadirja Mahfuz Hudori Maulana Achiar, Anshari Luthfi Muhammad Nuruddin Prathama mutiah, siti Nadya Amelia Dewi Suryana Nuramaliyah, Nuramaliyah Nurfadilah, Khalilah Pramana, Setia Pranata, Ismail Puput Cahya Ambarwati Putu Gita Karlina Jayanti Qital, Dari Aulia Rahma Anisa Retno Ariyanti Pratiwi Rifaldi, Destriana Aulia Rika Rachmawati Rizki Ananda Sandhi Imam Maulana Santy Suryanty Sugi Haryanto Sukisman Tjitrosemito Sulaeman, Sulthan Naufal Syella Sumampouw Tiara, Yesan Ulfa Afilia Shofa Utami Dyah Syafitri Widoretno, Widoretno Zulhijrah, Zulhijrah Zunita Sari