Conference Papers
Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506
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Item An Efficient Deep Transfer Learning Approach for Classification of Skin Cancer Images(Springer Science and Business Media Deutschland GmbH, 2023) Naik, P.P.; Annappa, B.; Dodia, S.Prolonged exposure to the sun for an extended period can likely cause skin cancer, which is an abnormal proliferation of skin cells. The early detection of this illness necessitates the classification of der-matoscopic images, making it an enticing study problem. Deep learning is playing a crucial role in efficient dermoscopic analysis. Modified version of MobileNetV2 is proposed for the classification of skin cancer images in seven classes. The proposed deep learning model employs transfer learning and various data augmentation techniques to more accurately classify skin lesions compared to existing models. To improve the per¬formance of the classifier, data augmentation techniques are performed on “HAM10000" (Human Against Machine) dataset to classify seven dif¬ferent kinds of skin cancer. The proposed model obtained a training accuracy of 96.56% and testing accuracy of 93.11%. Also, it has a lower number of parameters in comparison to existing methods. The aim of the study is to aid dermatologists in the clinic to make more accurate diagnoses of skin lesions and in the early detection of skin cancer. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.Item Exploring Convolutional Neural Networks for Image Classification and Object Detection(Institute of Electrical and Electronics Engineers Inc., 2024) Sadhankar, D.S.; Illa, M.; Shetty, P.; Kumar, S.V.; Megha, M.K.; Ambilwade, R.P.Convolutional Neural Networks or CNNs are one of the newest powerful tools in various tasks of computer vision such as image classification or object detection providing the highest accuracy. This paper also aims to evaluate the efficiency of the CNNs in these areas using a real-world dataset from Kaggle. We discuss general issues and ways to address it, such as data augmentation, dropout and choose the best/settled value of hyperparameters for improvement of the model. This paper aimed at analyzing the effectiveness of CNN in learning discriminative features from the images and confirm that CNNs are among the most accurate models for image classification. Moreover, this study also provides suggestions for subsequent research work, including improving the CNN architectures, employing transfer learning, and incorporating interpretation methods to continue enhancing the performance of CNNs in computer vision. © 2024 IEEE.Item Revealing Insights: Sentiment Analysis of Indian Annual Reports(Institute of Electrical and Electronics Engineers Inc., 2024) Chaithra; Mohan, B.R.Annual reports are the corporate documents companies publish every year. These documents contain crucial company performance information and are often analyzed manually and objectively. The Investor often ignores the annual report's qualitative data and focuses only on quantitative data. In literature, it has been demonstrated that managers' word choices, CSR initiatives, and sentiments expressed in annual reports are related to future stock returns, earnings, and management fraud. Therefore, the study aims to observe sentiment orientation in CEO letters, Management Discussion and Analysis(MD&A), and Corporate Social Responsibility (CSR) and examine the sentiment relation with company performance. The NSE-listed company annual reports are considered for the study. In the proposed approach, the results of the LM Dictionary-Based technique, Naive Bayes, SVM, RF, LSTM, and FinBERT model are considered to determine the final sentiment. The annual report tone is calculated and compared with the performance indicators, i.e., Return on Assets(ROA) and Return on Equity(ROE). © 2024 IEEE.