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Digital data explosion mandates the development of scalable tools to organize the data in a meaningful and easily accessible form. Clustering is a commonly used tool for data organization. However, many clustering algorithms designed to handle large data sets assume linear separability of data and hence do not perform well on real world data sets. While(More)
Kernel clustering algorithms have the ability to capture the non-linear structure inherent in many real world data sets and thereby, achieve better clustering performance than Euclidean distance based clustering algorithms. However, their quadratic computational complexity renders them non-scalable to large data sets. In this paper, we employ random Fourier(More)
—The ubiquity of personal computing technology has produced an abundance of staggeringly large data sets—the Library of Congress has stored over 160 terabytes of web data and it is estimated that Facebook alone logs over 25 terabytes of data per day. There is a great need for systems by which one can elucidate the similarity and dissimilarity among and(More)
—Kernel-based clustering algorithms have the ability to capture the non-linear structure in real world data. Among various kernel-based clustering algorithms, kernel k-means has gained popularity due to its simple iterative nature and ease of implementation. However, its run-time complexity and memory footprint increase quadratically in terms of the size of(More)
In clustering applications involving documents and images, in addition to the large number of data points (<i>N</i>) and their high dimensionality (<i>d</i>), the number of clusters (<i>C</i>) into which the data need to be partitioned is also large. Kernel-based clustering algorithms, which have been shown to perform better than linear clustering(More)
Stream clustering methods, which group continuous, temporally ordered dynamic data instances, have been used in a number of applications such as stock market analysis, network analysis, and cosmological analysis. Most of the popular stream clustering algorithms are linear in nature, i.e. they assume that the data is linearly separable in the input space and(More)
RESEARCH INTEREST I'm interested in research topics related to computer vision, deep learning and machine learning, with the emphasis on following applications: • Proposed a multimodal analysis framework for detecting illicit drug dealers on Instagram. (TIST 2016) • Proposed a cross-platform framework for recommending Pinterest boards to Twitter users. (MM(More)