Browsing by Author "Hera, Mst. Dilruba Yeasmin"

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A Framework for Human Skin Disease Classification Using Convolutional Neural Network
(Daffodil International University, 2025-01-20) Hera, Mst. Dilruba Yeasmin
One of the most dangerous types of cancer is skin cancer, it becomes a significant health hazard when not treated and detected on time. Skin cancer may spread to other parts of the body and complicate treatment if it is not detected in its early stages. Mainly it is the result of abnormal skin cell growth, usually the cells are stimulated by the sun for a long time. The early detection of skin tumors is a basic but highly complicated and expensive process due to the complexity of the diagnostic methods implicated. The identification of skin cancer by the location and cells involved augments the necessity of a very precise classifier for a successful diagnosis. Where the use of CNN in the recognition and classification of skin cancer, especially in skin lesion classification has been proposed to solve this issue. The utilized diagnosing method includes the utilization of image processing algorithms and deep learning models to increase accuracy and efficiency. Methods like image augmentation are then used for adding more rows to the dataset are used to scale up the dataset. This way, the model understands the diverse cases encountered. In addition, transfer learning is useful for increasing the classification accuracy by using pre-trained models for improved performance. As one of deep learning's deep architectures, CNNs serves as a key player in the extraction of features and in the classification of skin problems like psoriasis. This technique has been impressively productive for it gets a hit rate of 75%, thus revealing future prospects in the medical field.
Implementation of Secured IP Telephony System
(2014-08-02) Islam, Md. Najmul; Hera, Mst. Dilruba Yeasmin; Chowdhury, Shafee-Ul-Mahmud
In this project, IP telephony feature and secured IP telephony system have been considered to setup the PBX system. IAX trunk is created and configured so that extension of one server can call to the extension of another server of same network. Elastix call center is also installed and configured so that campaign for incoming and outgoing calls could be made and which allowed the interaction between agents and telephony subscribers. Openfire and Spark have been installed and configured so that instant messaging between people could be made on same network, even network joined by a WAN, instant messaging also possible to external people by using the openfire gateway plug in. The packet passing over the network has also been analyzed by wireshark. And, finally, server has become secured in 3 levels by Bactrack and it is ensured the privacy of the system and no one can hack and destroy the system modify it as one want.