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All Journal Jurnal Ilmu Komputer dan Bisnis Instal : Jurnal Komputer
Jange, Beno
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Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

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DAMPAK PEMILIHAN PRESIDEN REPUBLIK INDONESIA TAHUN 2019 TERHADAP HARGA SAHAM DI BURSA EFEK INDONESIA Jange, Beno
Jurnal Ilmu Komputer dan Bisnis Vol 11 No 1 (2020)
Publisher : STMIK Dharmapala Riau

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Abstract

Penelitian ini bertujuan menguji dampak pemilihan presiden dan wakil presiden Republik Indonesia pada tahun 2019 terhadap harga saham di Bursa Efek Indonesia. Sampel yang digunakan dalam penelitian ini adalah perusahaan yang tergabung dalam sektor perbankan periode Februari 2019 sampai dengan Juli 2019. Dalam penelitian ini digunakan abnormal return saham dan trading volume activity untuk diuji. Model penelitian yang digunakan adalah event study. Hasil yang diperoleh menunjukkan terdapat abnormal return pada setiap peristiwa pemilihan presiden dan wakil presiden. Namun tidak terdapat perbedaan yang signifikan antara sebelum dan sesudah peristiwa baik untuk abnormal return maupun trading volume activity.
Multi-criteria K-nearest neighbor in the classification of eye diseases at Dr. Fauziah Bireuen Hospital asrianda, asrianda; Rosnita, Lidya; Jange, Beno; Zulfadli, Zulfadli
Bahasa Indonesia Vol 15 No 02 (2023): Instal : Jurnal Komputer Periode (Juli-Desember)
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jurnalkomputer.v15i02.168

Abstract

Classification studies and maps each attribute in one of the predetermined classes. K-NN has several drawbacks such as high computational load in conducting training data, large memory when implemented. The selection of distance metrics and data pre-processing does not affect the increase in accuracy, but in this study the Euclidean distance metric is better than Manhattan in increasing accuracy. Finding the optimal number of neighbors varies between different distances, computation takes a long time. High noise for smaller k, the higher the value of k, the lower the accuracy and the smaller the computation time. K odd or even does not affect the high or low accuracy, but does affect the computation time.
Co-Authors Asrianda Asrianda Lidya Rosnita Zulfadli Zulfadli