IMCAD: Computer Aided System for Breast Masses Detection based on Immune Recognition

Computer Aided Detection (CAD) systems are very important tools which help radiologists as a second reader in detecting early breast cancer in an efficient way, specially on screening mammograms. One of the challenging problems is the detection of masses, which are powerful signs of cancer, because of their poor apperance on mammograms. This paper investigates an automatic CAD for detection of breast masses in screening mammograms based on fuzzy segmentation and a bio-inspired method for pattern recognition: Artificial Immune Recognition System. The proposed approach is applied to real clinical images from the full field digital mammographic database: Inbreast. In order to validate our proposition, we propose the Receiver Operating Characteristic Curve as an analyzer of our IMCAD classifier system, which achieves a good area under curve, with a sensitivity of 100% and a specificity of 95%. The recognition system based on artificial immunity has shown its efficiency on recognizing masses from a very restricted set of training regions

Modified fuzzy rough set technique with stacked autoencoder model for magnetic resonance imaging based breast cancer detection

Breast cancer is the common cancer in women, where early detection reduces the mortality rate. The magnetic resonance imaging (MRI) images are efficient in analyzing breast cancer, but it is hard to identify the abnormalities. The manual breast cancer detection in MRI images is inefficient; therefore, a deep learning-based system is implemented in this manuscript. Initially, the visual quality improvement is done using region growing and adaptive histogram equalization (AHE), and then, the breast lesion is segmented by Otsu thresholding with morphological transform. Next, the features are extracted from the segmented lesion, and a modified fuzzy rough set technique is proposed to reduce the dimensions of the extracted features that decreases the system complexity and computational time. The active features are fed to the stacked autoencoder for classifying the benign and malignant classes. The results demonstrated that the proposed model attained 99% and 99.22% of classification accuracy on the benchmark datasets, which are higher related to the comparative classifiers: decision tree, naïve Bayes, random forest and k-nearest neighbor (KNN). The obtained results state that the proposed model superiorly screens and detects the breast lesions that assists clinicians in effective therapeutic intervention and timely treatment

Optimisasi Model Fuzzy Terbobot untuk Klasifikasi Data Polikotomus dan Penerapannya di Bidang Kesehatan

Penelitian ini bertujuan untuk mengembangkan metode baru dalam pemodelan fuzzy untuk klasifikasi data polikotomus dengan kombinasi metode aturan fuzzy terbobot (weighted fuzzy rule) dan dekomposisi nilai singular serta mengaplikasikannya untuk mendiagnosis penyakit kanker serviks dan kanker payudara. Target khusus dalam penelitian ini adalah mendapatkan metode baru dalam pemodelan fuzzy terbobot yang optimal untuk klasifikasi data polikotomus, menghasilkan pemrograman graphical user interface (GUI) untuk model fuzzy terbobot yang optimal untuk data polikotomus, dan menerapkannya untuk klasifikasi di bidang kesehatan yaitu untuk diagnosis kanker serviks dan kanker payudara. Pada penelitian tahun pertama, telah dibangun suatu prosedur baru dalam pembentukan model fuzzy Mamdani yang optimal untuk klasifikasi data polikotomus dengan metode aturan fuzzy terbobot. Kemudian dibangun suatu prosedur baru dalam pembentukan model fuzzy Takagi-Sugeno-Kang (TSK) order satu dengan kombinasi metode aturan fuzzy terbobot dan dekomposisi nilai singular. Berdasarkan prosedur tersebut, dikembangkan pemrograman graphical user interface (GUI) dengan MATLAB untuk klasifikasi data polikotomus. Selanjutnya pada tahun kedua, hasil pada tahun pertama akan diterapkan untuk menyelesaikan permasalahan klasifikasi di bidang kesehatan khususnya untuk diagnosis kanker serviks dan kanker payudara

A Bonferroni Mean Based Fuzzy K Nearest Centroid Neighbor Classifier

K-nearest neighbor (KNN) is an effective nonparametric classifier that determines the neighbors of a point based only on distance proximity. The classification performance of KNN is disadvantaged by the presence of outliers in small sample size datasets and its performance deteriorates on datasets with class imbalance. We propose a local Bonferroni Mean based Fuzzy K-Nearest Centroid Neighbor (BM-FKNCN) classifier that assigns class label of a query sample dependent on the nearest local centroid mean vector to better represent the underlying statistic of the dataset. The proposed classifier is robust towards outliers because the Nearest Centroid Neighborhood (NCN) concept also considers spatial distribution and symmetrical placement of the neighbors. Also, the proposed classifier can overcome class domination of its neighbors in datasets with class imbalance because it averages all the centroid vectors from each class to adequately interpret the distribution of the classes. The BM-FKNCN classifier is tested on datasets from the Knowledge Extraction based on Evolutionary Learning (KEEL) repository and benchmarked with classification results from the KNN, Fuzzy-KNN (FKNN), BM-FKNN and FKNCN classifiers. The experimental results show that the BM-FKNCN achieves the highest overall average classification accuracy of 89.86% compared to the other four classifiers

Optimisasi Model Fuzzy Terbobot untuk Klasifikasi Data Polikotomus dan Penerapannya di Bidang Kesehatan

Penelitian ini bertujuan untuk mengembangkan metode baru dalam pemodelan fuzzy untuk klasifikasi data polikotomus dengan kombinasi metode aturan fuzzy terbobot (weighted fuzzy rule) dan dekomposisi nilai singular serta mengaplikasikannya untuk mendiagnosis penyakit kanker serviks dan kanker payudara. Target khusus dalam penelitian ini adalah mendapatkan metode baru dalam pemodelan fuzzy terbobot yang optimal untuk klasifikasi data polikotomus, menghasilkan pemrograman graphical user interface (GUI) untuk model fuzzy terbobot yang optimal untuk data polikotomus, dan menerapkannya untuk klasifikasi di bidang kesehatan yaitu untuk diagnosis kanker serviks dan kanker payudara. Pada penelitian tahun pertama, telah dibangun suatu prosedur baru dalam pembentukan model fuzzy Mamdani yang optimal untuk klasifikasi data polikotomus dengan metode aturan fuzzy terbobot. Kemudian dibangun suatu prosedur baru dalam pembentukan model fuzzy Takagi-Sugeno-Kang (TSK) order satu dengan kombinasi metode aturan fuzzy terbobot dan dekomposisi nilai singular. Berdasarkan prosedur tersebut, dikembangkan pemrograman graphical user interface (GUI) dengan MATLAB untuk klasifikasi data polikotomus. Selanjutnya pada tahun kedua, hasil pada tahun pertama akan diterapkan untuk menyelesaikan permasalahan klasifikasi di bidang kesehatan khususnya untuk diagnosis kanker serviks dan kanker payudara