Judul: Penentuan Kemiripan Data Karya Ilmiah IPB Menggunakan Algoritme Levenshtein
Abstrak: IPB Scientific Data is documented periodically. This data can be used for academics and researchers to get a reference of particular research study. In this research, Levenshtein algorithm was implemented to determine the similarity between titles. The concept for calculating Levenshtein distance is minimum number of edit operations required to transform a string into another string that consists of 3 operations: 1) insertion, 2) substitution, and 3) deletion. The research shows that implementation of Levenshtein distance to determine the similirity of scientific data is difficult to be able to obtain high persentage of similarity. And the similarity rate of 34% can be used as a threshold to determine the similarity of scientific data with the title as identifier. This is able to increase AVP curve.
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Judul: Pengembangan Visualisasi Co-Authorship Peneliti IPB
Abstrak: IPB merupakan salah satu universitas yang memiliki jumlah peneliti dan publikasi penelitian yang banyak di Indonesia. Publikasi menjadi salah satu faktor penilaian bagi suatu universitas. Salah satu lembaga kredibel yang menjadi tujuan publikasi peneliti adalah Scopus. Sampai tahun 2017, terdapat 3701 publikasi dengan afiliasi IPB di Scopus dalam bentuk tabular. Data tersebut sangat berguna jika dilakukan analisis co-authorship untuk melihat relasi antarpeneliti. Oleh karena itu, dibutuhkan suatu metode penyajian data untuk mempermudah proses analisis relasi antarpeneliti. Penelitian ini telah menghasilkan sistem informasi untuk visualisasi co-authorship peneliti IPB dengan metode Chi. Visualisasi coauthorship peneliti IPB berupa graf, dengan node merepresentasikan peneliti dan edge merepresentasikan hubungan peneliti berdasarkan kerja sama publikasi yang telah dilakukan. Ukuran node menunjukkan jumlah publikasi, warna node menunjukkan afiliasi, dan warna edge menunjukkan banyaknya publikasi yang dilakukan bersama. Sistem informasi yang telah dihasilkan dapat melakukan pencarian nama peneliti, select node untuk melihat informasi dari peneliti, filter graf berdasarkan afiliasi, dan melakukan zoom in atau zoom out pada graf.
Keyword: co-authorship, IPB, peneliti, sistem informasi, visualisasi

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4