CD Skripsi
Pemilihan Model Regresi B-Spline Terbaik Untuk Estimasi Kenaikan Harga Bitcoin Berdasarkan Orde Dan Titik Knot Optimal
The rapid development of science and technology has been able to provide
significant changes in financial activities with the use of a virtual cryptocurrency
currency with the name bitcoin as a means of payment, bitcoin emerged as a result
of the United States financial crisis that occurred in 2008. The idea was sparked by
Nakamoto by introducing an alternative currency system that really refers to the
strength of supply and demand. Based on INDODAX data in February 2021, the
bitcoin exchange rate was at $50.586 while 4 months earlier in October 2020 the
bitcoin exchange rate was at $11.521, this condition is one of the largest increases
in a short time as long as bitcoin is formed with a percentage increase approaching
450%. The increase in bitcoin prices can be modelled using the B-Spline
nonparametric regression method based on order and optimal knot points based on
the smallest Generalized Cross Validation value. The resulting B-Spline 4 degree
and the number of knots points 5 as the best model with each bases described
recursively.
Keyword: Cryptocurrency, bitcoin, nonparametric, B-Spline, generalized cross
validation.
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