Judul: Metode Review Scoring untuk menilai kualitas ulasan barang pada aplikasi jual beli online Bukalapak.
Abstrak: Review adalah salah satu fitur pada aplikasi jual beli online yang memungkinkan pengguna untuk membaca dan memberikan umpan balik tentang kualitas produk. Review yang tidak berfokus pada produk dapat menyulitkan calon pembeli untuk mengetahui kualitas produk yang sesungguhnya...
Keyword: Bukalapak, jual beli online, Regresi logistik, review scoring, ulasan

Judul: Content Analysis of Consumer Reviews and Comments on E-commerce in Indonesia
Abstrak: Online consumer review (OCR) merupakan salah satu bentuk E-WOM yang dapat menjadi sumber informasi dan sumber acuan bagi calon konsumen dalam mengambil keputusan. Penelitian ini bertujuan untuk menganalisis isi review dan komentar konsumen pada e-commerce di Indonesia. Penelitian ini menggunakan desain penelitian mix method. Penelitian kuantitatif dilakukan dengan teknik survei menggunakan instrumen kuesioner. Penelitian kualitatif dilakukan dengan teknik analisis isi dan indepth interview. Analisis isi dilakukan dengan mengamati review dan rating yang diberikan konsumen pada produk fashion di toko online yang berada di e-commerce Shopee dan Tokopedia. Indepth interview dilakukan kepada dua konsumen dan satu penjual. Pengolahan dan analisis data dilakukan dengan menggunakan aplikasi Microsoft Excel, dan Statistical Package for Social Science (SPSS) 25.0. Data yang diperoleh dalam bentuk komentar dilakukan analisis sentimen. Hasil dari penelitian ini menunjukkan bahwa hampir semua konsumen melihat rating dan review sebelum membeli produk fashion. Kebanyakan konsumen hanya memberikan rating tanpa disertai dengan review. Hasil penelitian juga menunjukkan bahwa ulasan mengenai kualitas produk, dan ulasan mengenai harga merupakan ulasan paling banyak dibahas oleh konsumen yang membeli produk fashion. Terdapat konsumen yang memberikan komentar yang tidak sesuai, menggunakan kata-kata berulang atau kata-kata yang dipanjangkan hurufnya., Online consumer review (OCR) is a form of E-WOM that can be a source of information and a source of reference for potential consumers in making decisions. This study aims to analyze the content of consumer reviews and comments on e-commerce in Indonesia. This study uses a mixed method research design. Quantitative research is carried out by survey techniques using a questionnaire instrument. Qualitative research was conducted using content analysis techniques and in-depth interviews. Content analysis is carried out by observing reviews and ratings given by consumers on fashion products in online stores in the e-commerce Shopee and Tokopedia. In-depth interviews were conducted with two consumers and one seller. Data processing and analysis was performed using Microsoft Excel application, and Statistical Package for Social Science (SPSS) 25.0. The data obtained in the form of comments is subjected to a sentiment analysis. The results of this study indicate that almost all consumers look at ratings and reviews before buying fashion products. Most consumers only give ratings without being accompanied by a review. The results also show that reviews about product quality and reviews about prices are the most discussed reviews by consumers who buy fashion products. There are consumers who give inappropriate comments, use repetitive words or words that are lettered out.
Keyword: content analysis, e-commerce, online consumer rating, online consumer review, online shopping

Judul: Development of DNA Vaccine Encoding Glycoprotein of Koi Herpes Virus Using Local Isolate.
Abstrak: The aim of this research was to develop DNA vaccine of Koi Herpesvirus in carp. Glycoprotein gene originated from ORF 25 KHV virus that is 1.8 kbp in size, is a potential gene in DNA vaccine construction. The sequencing and similarity analysis of the gene using BLAST software showed that this gene is a GP25 gene and was found to be very similar (99%) to GP25 of KHV virus from the USA and Israel. When this GP25 gene was ligated with pGEMT Easy (pT, 3 kbp in size) vector, plasmid size was increasing up to 5 kb. Following this, a digestion of pT-GP25 plasmid using Sal I enzyme was applied resulted in a GP25 fragment (1.8 kbp). Subsequently, pAct-D6 with a size of 8.5 kbp was also cut using the same enzyme to eleminate a D6 gene with a size of 1.6 kbp. GP25 gene was then ligated with pAct resulted a pAct-GP25 plasmid with a size of 8.8 kbp. As there was only one restriction site applied, ligation can be occurred in two different directions. Thus, in order to determine the plasmid with the desired direction PCR analysis was carried out, and plasmid with the right direction was the one that sized approximately 2.1 kbp (no. 6, 17 and 20). High level of GFP gene expression was detected in all tissues analyzed, i.e. kidney, gil, spleen, and muscle 24 hours after injection which indicated that β-actin promoter of Japanese medaka could be active in common carp. Although not as high as on 24 hours, expression was still detected until day 7 and disappeared after day 28 post injection indicating that pAct-GFP can be remained and β-actin promoter of Japanese medaka can be active in muscle, gills and kidney at least a week after injection. The result of RT-PCR analysis on pAct-GP25 injected common carp showed that GP25 gene expression can be detected 14 days after injection in all tissues observed. The expression level differences between GFP and GP25 genes possibly related to the primer sensitivity on annealing process to cDNA template and the size of PCR targeted DNA fragment, as smaller PCR targeted product will be easier to be amplified than a bigger one. The length of PCR targeted DNA with GP25 primer was 1.8 kbp whereas GFP gene was 0.6 kbp.The challenge test on common carp results showed that all unvaccinated and negative control (not infected with KHV) was alive until the end of the experiment. Whereas, the survival of fish vaccinated with a dose of 12.5 was ranged from 60.9 and 96.7%. In relation to the activity of β-actin promoter that was used in this DNA vaccine, gene expression was occured 24 hours after vaccination and remained until 2 weeks. The control fish that was not injected by GP25 showed no GP25 expression either in the observed tissues or organs and resulted in a lower survival, i.e. 23.3%. The challenge test results has indicated that the fish vaccinated with GP25 at doses of 7.5 and 12.5 μg/100μL were able to produce KHV glycoprotein in their body which would be
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