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INDONESIA
JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI
Published by Universitas Hasanuddin
ISSN : 18581382     EISSN : 26148811     DOI : -
Core Subject : Education,
Mathematics
Jurnal ini mempublikasikan paper-paper original hasil-hasil penelitian dibidang Matematika, Statistika dan Komputasi Matematika.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol. 3 No. 2: January 2007" : 6 Documents clear
Kombinasi Penaksiran Model Lag Terdistribusi Dengan Ekspektasi Adaptif Dan Penyesuaian Parsial Aidawayati Rangkuti
Jurnal Matematika, Statistika dan Komputasi Vol. 3 No. 2: January 2007
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.612 KB) | DOI: 10.20956/jmsk.v3i2.3317

Abstract

Dalam menaksir Model Lag Terdistribusi, masalah yang mungkin terjadi adalah tidak adanya pegangan baku tentang panjang maksimum lag, selain itu apabila variabel lag yang digunakan semakin banyak maka mengakibatkan bertambah banyak data yang hilang dan akan muncul multikolinearitas. Satu cara yang dilakukan untuk mengatasi hal tersebut sebelum dilakukan penaksiran model adalah dengan menggunakan Transformasi Koyck sehingga diperoleh Model Koyck. Selanjutnya Model Ekspektasi Adaptif menggunakan variabel lag dan memberikan peran yang penting pada periode sekarang untuk dihasilkan pada periode yang akan datang, sedangkan Model Ekspektasi Penyesuaian Parsial mampu menyesuaikan diri, dan memanfaatkan variabel lag untuk menjelaskan penyesuaian ekspektasi yang dikaitkan dengan ketidakpastian di masa depan. Selanjutnya, kombinasi Model Ekspektasi Adaptif dan Penyesuaian Parsial menggunakan variabel lag untuk dihasilkan pada jangka panjang (long run). Tingkat signifikansi Model Adaptif, Model Parsial Adjustment dan kombinasinya relatif kurang baik, hal ini disebabkan adanya multikolinier dan autokolerasi
Penggunaan GARCH dalam Pemodelan Data Nilai Tukar IDR terhadap USD Anisa Anisa; Himawan Himawan
Jurnal Matematika, Statistika dan Komputasi Vol. 3 No. 2: January 2007
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.287 KB) | DOI: 10.20956/jmsk.v3i2.3313

Abstract

In analysis of time series, variance error always be assumed constant. Nevertheless, there are some financial economic data such as exchange rate data that variance error has not constant. This research describes an alternative model in analysis of time series which allowed variance error as an autoregressive process that recognized by GARCH (Generalized Autoregressive Conditional Heteroscedastic). GARCH model was used for modeling time series with residual condition variation according to the time. Estimated of parameter GARCH model can be used with MLE (Maximum Likelihood Estimation) method. At the end of this thesis is represented the variance model of exchange value of Rupiah (IDR) to American Dollar (USD). This research was based on daily data from January 2002 to December 2005. The result of the research show that rate of exchange value IDR to USD satisfied the assumption from GARCH model and GARCH (2,2) model is the most appropriate for  the time series data.   
Model Matematika Sistem Persediaan (Q, R) Yang Terkait Dengan Mutu Barang Dan Informasi Permintaan Lengkap Agus Sukmana
Jurnal Matematika, Statistika dan Komputasi Vol. 3 No. 2: January 2007
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.996 KB) | DOI: 10.20956/jmsk.v3i2.3314

Abstract

This paper deals with an inventory model for continuous review (Q, r) where there are some proportions of defective items in the ordered items. The number of defective items in a lot vary and it is assumed that their proportions follow a beta distribution. Lead time demand is a random variable, its distribution and parameters are known. This model also accommodates a condition where lost sales and back order policy are implemented in one cycle with different proportions of defective items. Numerical example is also given for illustration.     
Batas Nilai Eigen Maksimal Dari Matriks Tak Negatif Andi Kresna Jaya
Jurnal Matematika, Statistika dan Komputasi Vol. 3 No. 2: January 2007
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (468.233 KB) | DOI: 10.20956/jmsk.v3i2.3315

Abstract

Ide utama skripsi ini adalah untuk mendapatkan metode dalam menentukan batas dari nilai eigen maksimal dari matriks tak negatif, dengan berdasarkan batas Frobenius. Yaitu , dimana  adalah jumlah baris atau kolom minimum dan  adalah jumlah baris atau kolom maksimum. Kemudian dengan menggunakan batas bawah adalah maksimum dari jumlah baris atau kolom minimum sedangkan batas atas adalah jumlah minimum dari jumlah baris atau kolom maksimum. Metode yang diperoleh adalah                  .Setelah diperoleh metode baru kemudian dibandingkan dengan metode sebelumnya, untuk beberapa kasus diperoleh  batas nilai eigen maksimal yang lebih optimal untuk metode ini.
Parameterisasi Pengontrol Yang Menstabilkan Plant Secara Internal Kasbawati Kasbawati
Jurnal Matematika, Statistika dan Komputasi Vol. 3 No. 2: January 2007
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (552.382 KB) | DOI: 10.20956/jmsk.v3i2.3316

Abstract

This handing out lifts the problem about parameterization of all controllers that can internally stabilize the given system. Controller parameterization is done as a mean to show that the controller can we shape in so many kinds of parameter. A control problem in this setup is to analyze some specific properties (e.g., stability or performance) of the closed loop system or to design the feedback control K such that the closed loop system is stable in some appropriate sense.
Pergerakan Tanah Pada Lembah Tertimbun Yang Dipengaruhi Gelombang Permukaan Datar Jeffry Kusuma
Jurnal Matematika, Statistika dan Komputasi Vol. 3 No. 2: January 2007
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.381 KB) | DOI: 10.20956/jmsk.v3i2.3312

Abstract

Tulisan ini membahas mengenai pergerakan tanah pada lembah tertimbun yang dipengaruhi gelombang permukaan datar. Solusinya diselesaikan secara numerik dengan metode elemen batas dengan menggunakan bahasa pascal.  

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