PENGENALAN WAJAH DENGAN MATRIKS KOOKURENSI ARAS KEABUAN DAN JARINGAN SYARAF TIRUAN PROBABILISTIK

Face recognition system is a development of the basic methods of authentication system using the natural characteristics of the human face as a baseline. Face recognition process consists of several phases, training and testing phase. The testing phase is done directly and indirectly. Indirect data test taken from a set of face images that have been selected, while direct data test take face image from camera. Human face recognition combines GLCM and PNN methods. Preprocessing is done by converting RGB to grayscale, using centroid method as face image segmentation process. Face recognition includes some factors, i.e. lighting, distance, angle and position. GLCM uses statistic method and second-order texture analysis, which represents image texture in following parameters energy, corelation, homogenity and contrast. While PNN is used to build database which is stored in the network in order to compare outcome from GLM in the form of matrix. This research uses face image as database by collecting sample of 10 persons, 5 face position, 2 type of distance shooting and 3 type of lighting. Testing process results 92% in direct recognition and 93,33% in inderict recognition

SISTEM INFORMASI PENYEBARAN PENYAKIT DEMAM BERDARAH MENGGUNAKAN METODE JARINGAN SYARAF TIRUAN BACKPROPAGATION

Dengue disease is a major health problem and endemic in several countries including Indonesia. Indonesia is included in the category "A" in the stratification of DHF by WHO in 2001 which indicates the high rate of treatment in hospital and deaths from dengue. The purpose of this study was to investigate the ability of artificial neural networks Backpropagation method for information of the spread of dengue fever in a region. In this study uses six input variables which are environmental factors that influence the spread of dengue fever, include average temperature - average, rainfall, number of rainy days, the population density, sea surface height, and the percentage of larvae-free number for which data is sourced from BMKG, BPS and the Public Health Service. Network architecture applied to a multilayer network that uses an input with 6 neurons, one hidden layer and an output with the output neuron is one. From the results obtained by training the best network architecture is the number one hidden layer with the number of neurons obtained a total of 110 neurons and also the system can recognize the entire training data. The best training algorithm using a variable learning rate and momentum of 0.9 by 0.6 by the end of the training MSE 0.000999879. in the process of testing using test data obtained 17 tissue levels of approximately 88.23% accuracy. Therefore we can conclude that the network is implemented in this study when subjected to the test data other then the error rate of about 11.77%. Keywords : Artificial Neural Networks; Backpropagation; Dengue fever

SISTEM DETEKSI RETINOPATI DIABETIK MENGGUNAKAN SUPPORT VECTOR MACHINE

Diabetic Retinopathy is a complication of Diabetes Melitus. It can be a blindness if untreated settled as early as possible. System created in this thesis is the detection of diabetic retinopathy level of the image obtained from fundus photographs. There are three main steps to resolve the problems, preprocessing, feature extraction and classification. Preprocessing methods that used in this system are Grayscale Green Channel, Gaussian Filter, Contrast Limited Adaptive Histogram Equalization and Masking. Two Dimensional Linear Discriminant Analysis (2DLDA) is used for feature extraction. Support Vector Machine (SVM) and k-Nearest Neighbour (kNN) are used for classification. The test result performed by taking a dataset of MESSIDOR with number of images that vary for the training phase, otherwise is used for the testing phase. Test result show the optimal accuracy are 84% for 2DLDA-SVM and 80% for 2DLDA-kNN. Keywords : Diabetic Retinopathy, Support Vector Machine, Two Dimensional Linear Discriminant Analysis, k-Nearest Neighbour, MESSIDO