Judul: Web Log Mining Menggunakan k-Means pada Server Proxyuntuk Perancangan Manajemen Bandwidth IPB
Abstrak: IPB internet services isimproving every year, both from the infrastructure and service aspects. One of the infrastructure improvements is internet bandwidth enhancement. However, research on user characterization of internet usage in IPB has never been done. This study uses k-Means algorithm to cluster IPB proxy server log's file to obtain the characteristics of internet users. The research evaluates all user's log files including student, educational staff, and lecturer. This study resulted in 16clusters calculated based on the number of hits on the 14 site categories. Clustering resultsshowedthatthere weresimilaritiesin theuse of the internetfrom student dorm.In each cluster, thetotalaverage percentage of the sites with Service and Entertainmentcategoriesareabove 24% and 33%.Bandwidth management is designed based on member and utilization of each cluster.
Keyword: usage characterization, proxyserver, proxy log, k-Means, IPB’s internet, clustering

Judul: Analisis Penggunaan Layanan Jaringan Internet IPB
Abstrak: Bogor Agriculture University (IPB) has implemented internet network technology to support education. This study aims to determine patterns of IPB internet network service usage based on application protocols that are accessible through the network and the composition of websites that are frequently visited by IPB academic community. The data used in this study is IPB internet traffic, which were obtained through measurements using Wireshark. The first results show that the observed application protocol traffic has a proportion as follows: HTTP is 87.41%, SSL protocol is 11.27%, FTP protocol is 0.09%, FTP-data protocol is 0.66%, and SMTP merged with POP is 0,57%. HTTP is the most popular protocol used in IPB network. The other results of this study also show the composition of websites visited by IPB academic community. The portion for commercial website is 88.35%, where as the portion for the website that supports educational process is 8.15%. We also obtained information that IPB internet users access to pornography sites at 1.4%. Therefore efforts need to be made to increase the use of IPB internet network services for education.
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Judul: Pengujian Virus Newcastle Disease Gen VII Isolat Lapang Sebagai Virus Standar Pada Uji Tantang Vaksin
Abstrak: This study was conducted to determine the standard of Newcastle disease virus Gene VII field isolate as a virus challenge to vaccine test. A virus suspension that has previously been tested by HA test then titrated with EID50 using 30 Specific Pathogen Free (SPF) of 10 day old chicken embryonated eggs. In addition, chicken lethal dose50 (CLD50) test were used to determine the virus titer that could cause 50% death of the chicken population. The CLD50 test was used 25 day-old-chickens (DOC) divided into 5 groups. The virus was diluted from 10-1 to 10-8. The 104 to 10-8 dilution of NDV was infected to every group of chicken via eyedrop and intranasal with 0.1 ml/chicken dosage. Haemagglutination test showed that the allantoic fluid were contain high titers of NDV is 512 HAU. The infective NDV that had been titrated by EID50 test showed the virus titers is 109 EID50/0.1 ml or 1010 EID50/ml and the virus titers of CLD50 test e.i 106.48 CLD50/0.1 ml or 107.48 CLD50/ml. These results can be concluded that the NDV Gene VII field isolates were most appropriate to be used as a standard virus to vaccine test
Keyword: Newcastle Disease Virus Gene VII, HA tes, EID50 test, CLD50 test