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All Journal Jurnal Ilmu Komputer dan Agri-Informatika Pendidikan Bahasa Indonesia
Silvia Rahmi
Institut Pertanian Bogor
Agriculture, Biological Sciences & Forestry Computer Science & IT Education Languange, Linguistic, Communication & Media

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Pengenalan Genus Diatom Menggunakan Principal Component Analysis dan Jaringan Saraf Tiruan Propagasi Balik Sebagai Classifier Rahmi, Silvia; Haryanto, Toto; Pratiwi, Niken TM
Jurnal Ilmu Komputer dan Agri-Informatika Vol 2, No 1 (2013)
Publisher : Departemen Ilmu Komputer IPB

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Abstract

Diatom merupakan suatu mikroalga unisel (kadang berkoloni) yang mempunyai peranan penting dalam dunia riset dan penelitian. Identifikasi diatom merupakan pekerjaan yang rumit. Hal ini dikarenakan diatom memiliki ratusan taksa dengan banyak variasi bentuk dan karakteristik biologi yang menyebabkan proses identifikasinya tidak mudah bahkan bagi seorang pakar. Penelitian ini menerapkan Principal Component Analysis (PCA) untuk reduksi data dan Jaringan Saraf Tiruan (JST) untuk identifikasi diatom. Proporsi PCA yang digunakan ialah 80% dan 90%. JST yang digunakan adalah propagasi balik dengan satu hidden layer. Data yang dipakai pada penelitian ini adalah citra diatom berformat JPG yang diambil menggunakan mikroskop elektrik. Hasil penelitian menunjukkan bahwa generalisasi terbaik sebesar 90% diperoleh pada percobaan menggunakan proporsi PCA 90% dengan persentase data latih 80%.
KEMAMPUAN MENULIS DONGENG MENGGUNAKAN TEKNIK SIMAK DAN TULIS SISWA KELAS VII SMP NEGERI 27 PADANG Rahmi, Silvia; Muhardis, Muhardis; Yusandra, Titiek Fujita
Pendidikan Bahasa Indonesia No 1 (2014): Jurnal Wisuda Ke 48 Mahasiswa Prodi Pendidikan Bahasa dan Sastra Indonesia
Publisher : Pendidikan Bahasa Indonesia

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The problem of this research was the students’ ability in writing tales by using listening and writing technique in class VII of SMP Negeri 27 Padang. This research was designed for describing the students’ ability in writing tales by using listening and writing technique in class VII of SMP Negeri 27 Padang. This was a quantitative research which used descriptive method. Based on the results of the research some conclusions were drawn. First, the students’ ability in writing tales by using listening and writing technique for the first indicator was more than adequate (72,3) in which their average score was in the range of 66-75%. Second, the students’ ability in writing tales by using listening and writing technique for the second indicator was very good(90,4) in which their average score was in the range of 86-95%. Third, the students’ ability in writing tales by using listening and writing technique for the third indicator was more than adequate (75,2) in which their average score was in the range of 66-75%. Fourth, the students’ ability in writing tales by using listening and writing technique for the fourth indicator was very good (91,4) in which their average score was in the range of 86-95%. Fifth, in the general, the average score of the students’ ability in writing tales by using listening and writing technique was good (82,3) in which their average score was in the range of  76-85%.
Co-Authors Muhardis Muhardis Niken TM Pratiwi Titiek Fujita Yusandra Toto Haryanto