Development of Technology Parameter Towards Shipbuilding Productivity Predictor Using Cubic Spline Approach

Authors

Bagiyo Suwasono, Jurusan Teknik Perkapalan, FTK, Institut Teknologi Sepuluh Nopember, Surabaya 60111, IndonesiaFollow
Sjarief Widjaja, Jurusan Teknik Perkapalan, FTK, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
Achmad Zubaydi, Jurusan Teknik Perkapalan, FTK, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
Zaed Yuliadi, PT. PAL Indonesia, Ujung Surabaya 60155, Indonesia
I Nyoman Budiantara, Jurusan Statistika, FMIPA, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia

Abstract

Development of Technology Parameter Towards Shipbuilding Productivity Predictor Using Cubic Spline Approach. Ability of production processes associated with state-of-the-art technology, which allows the shipbuilding, is customized with modern equipment. It will give impact to level of productivity and competitiveness. This study proposes a nonparametric regression cubic spline approach with 1 knot, 2 knots, and 3 knots. The application programs Tibco Spotfire S+ showed that a cubic spline with 2 knots (4.25 and 4.50) gave the best result with the value of GCV = 56.21556, and R2 = 94.03%.Estimation result of cubic spline with 2 knots for the PT. Batamec shipyard = 35.61 MH/CGT, PT. Dok & Perkapalan Surabaya = 27.49 MH/CGT, PT. Karimun Sembawang Shipyard = 27.49 MH/CGT, and PT. PAL Indonesia = 19.89 MH/CGT.

Bahasa Abstract

Kemampuan proses produksi yang dihubungkan dengan state-of-the-art teknologi memungkinkan pembangunan kapal yang disesuaikan dengan peralatan mutakhir akan berdampak pada tingkat produktivitas dan daya saing. Studi ini mengusulkan pendekatan regresi nonparametrik splin kubik dengan 1 knot, 2 knot, dan 3 knot. Aplikasi program Tibco Spotfire S+ menunjukkan bahwa splin kubik dengan 2 knot (4,25 dan 4,50) memberikan hasil terbaik dengan nilai general cross validation (GCV) = 56,21556 dan R2 = 94,03%. Hasil estimasi splin kubik dengan 2 knot untuk PT. Batamec Shipyard = 35,61 MH/CGT, PT. Dok & Perkapalan Surabaya = 27,49 MH/CGT, PT. Karimun Sembawang Shipyard = 27,49 MH/CGT, dan PT. PAL Indonesia = 19,89 MH/CGT.

References

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Recommended Citation

Suwasono, Bagiyo; Widjaja, Sjarief; Zubaydi, Achmad; Yuliadi, Zaed; and Budiantara, I Nyoman (2010) "Development of Technology Parameter Towards Shipbuilding Productivity Predictor Using Cubic Spline Approach," Makara Journal of Technology: Vol. 14: Iss. 2, Article 12.
DOI: 10.7454/mst.v14i2.704
Available at: https://scholarhub.ui.ac.id/mjt/vol14/iss2/12