In fuzzy clustering, the fuzzy c-means (FCM) clustering algorithm is the best known and used method. An interesting extension of FCM is the fuzzy ISODATA (FISODATA) algorithm; it updates cluster number during the algorithm. That's why we can have more or less clusters than the initialization step. It's the power of the fuzzy ISODATA algorithm comparing to FCM. The aim of this paper is to compare FCM and FISODATA results. General TermsMachine Intelligence, Fuzzy Systems.
The Internet of Things (IoT) and the recent advancements in cloud computing have gained importance with the surge in the amount of data generated globally. Moreover, the rapidly increasing applications of the Internet in many scientific and real-time practical applications have ushered in a new era of complex applications of data flow. Tourism and related services are routinely accessed by millions of customers worldwide. Furthermore, with newer, attractive, rapidly growing services, it has become essential for dealers to promote their services using up-to-date technological tools. The major challenge is to efficiently determine and select the best travel options conforming to the needs and financial requirements of the customers. In this study, the use of a dynamic skyline operator for multicriteria decisions is examined using a time-dependent database to select the best services. Moreover, the impact of implementing the operator on optimizing resource consumption is explored. Results indicate that the implementation of this operator is more efficient than the existing techniques.
This paper presents a new approach for the challenging problem of image geo-localization using Convolutional Neural Networks (CNNs). This latter has become the state-of-the-art technique in computer vision and machine learning, particularly in location recognition of images taken in urban environments where the recognition accuracy is very impressive. We cast this task as a classification problem. First, we extract features from images by using pre-trained CNN model AlexNet as a feature extraction tool; where the output of the fully connected layer is considered as the feature representation. Then, the features extracted from the fully connected layer can be used for the classification process by feeding them into the Support Vector Machine (SVM) classifier. We evaluated the proposed approach on a data set of Google Street View images (GSV); the experimental results show that our approach can improve the classification by achieving a good accuracy rate which is 94.19%.
Accurate building detection is a critical task in urban development and digital city mapping. However, current building detection models for high-resolution remote sensing images are still facing challenges due to complex object characteristics and similarities in appearance. To address this issue, this paper proposes a novel algorithm for building detection based on in-depth feature extraction and classification of adaptive superpixel shredding. The proposed approach consists of four main steps: image segmentation into homogeneous superpixels using a modified Simple Linear Iterative Clustering (SLIC), in-depth feature extraction using an variational auto-encoder (VAE) scale on the superpixels for training and testing data collection, identification of four classes (buildings, roads, trees, and shadows) using extracted feature data as input to an Convolutional Neural Network (CNN), and extraction of building shapes through regional growth and morphological operations. The proposed approach offers more stability in identifying buildings with unclear boundaries, eliminating the requirement for extensive prior segmentation. It has been tested on two datasets of high-resolution aerial images from the New Zealand region, demonstrating superior accuracy compared to previous works with an average F1 score of 98.83%. The proposed approach shows potential for fast and accurate urban monitoring and city planning, particularly in urban areas.
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