Judul: Pengenalan Aksara Sunda Menggunakan Ekstraksi Ciri Zoning dan Klasifikasi Support Vector Machine
Abstrak: This research aims to determine the most effective feature extraction method used in Sundanese script recognition. The data used in this research are generated in the form of image files, each of which contains a Sundanese character. Feature extraction method used is the variations of zoning method: Image Centroid and Zone (ICZ), Zone Centroid and Zone (ZCZ), and combination of ICZ and ZCZ. The number of zones used are 4, 6, 8, and 12 zones. Support Vector Machine is used as classifier, with linear, quadratic, polynomial, and RBF kernel. Among the feature extraction methods used, the hybrid feature extraction method ICZ and ZCZ obtains maximum accuracy for all the number of zones used. On the other side, the feature extraction method using 12 zones obtains the maximum accuracy for all the feature extraction methods used. From this result, it can be concluded that the most effective feature extraction method used in Sundanese script recognition is the hybrid method ICZ & ZCZ with 12 zones.
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Judul: Pengenalan Aksara Jawa Tulisan Tangan dengan Menggunakan Ekstraksi Fitur Zoning dan Klasifikasi K-Nearest Neighbour
Abstrak: Various studies on traditional script recognition continued to be developed using various methods. One of them is handwritten Javanese script recognition. This research aims to determine the accuracy of the Zoning Feature Extraction and K-Nearest Neighbour Classification method. The data used in this this research are handwritten Javanese script from 20 different peoples. Each of character images will be transformed into 120 x 120 pixels dimension and will undergo the thinning method. The feature extraction method used is the combination of the zoning method ICZ-ZCZ with the number of zones are 4, 6, 8, 9, 10, 12, 15, 16, 18, 20 and 24. K-Nearest Neighbour is used as the classifier with k values are 1, 3, 5 and 7. The highest accuracy was obtained on 12 zones with k = 1 on K-Nearest Neighbour with a value of 71.5%.
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Judul: Enteric Collibacillosis Pada Anak Babi Baru Lahir: Patogenesa dan Perubahan-Perubahan Patologisnya
Abstrak: Diare disebabkan oleh infeksi bakteri Escherichia coli pada anak-anak babi baru lahir yang peka terhadap en terotoksin produk bakteri tersebut. Dikenal sebagai colibacillosis. Patogenesa dari colibacillosis anak babi baru lahir adalah (1) infeksi oleh E. coli patogen, (2) proliferasi E. coli di lumen usus halus, (3) produksi dan pelepasan enterotoksin, dan (4) aktifitas toksin pada usus halus. Dalam proses proliferasi, adanya antigen pili K88 sangat penting karena memungkinkan bakteri perlekatan dengan epitel mucosa usus halus. mengadakan Setelah ko lonisasi dan proliferasi segera toksin dilepaskan. Akti- fitas toksin menginduksi sekresi yang berlebihan dari u- sus sehingga banyak cairan yang dikeluarkan ke lumen usus. Hal ini mengakibatkan banyak cairan dan elektrolit hilang sehingga timbul diare, dehidrasi dan asidosis yang sering menyebabkan kematian. Perubahan-perubahan patologis yang umum adalah dis tensi usus halus, dilatasi lambung dan infark pada kurva- tura mayor. Perubahan-perubahan histologis yang terjadi adalah enteritis hemorrhagica acuta, oedem dan kongesti pembuluh darah di lamina propria, akumulassi leukosit inti polimorf, sel monosit, dan inti sel mengalami piknosis Thrombus pada vena dan degenerasi serta desquamasi sel epitel usus….
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