Data mining of extremely large ad-hoc data sets to produce reverse web-link graphs
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Data mining can be a valuable tool, particularly in the acquisition of military intelligence. As the second study within a larger Naval Postgraduate School research project using Amazon Web Services (AWS), this thesis focuses on data mining on a very large data set (32 TB) with the open web crawler data set Common Crawl. Similar to previous studies, this research employs MapReduce (MR) for sorting and categorizing output value pairs. Our research, however, is the first to implement the basic Reverse Web-Link Graph (RWLG) algorithm as a search capability for web sites, with validation that it works correctly. A second goal is to extend the RWLG algorithm using a full Common Crawl archive as input for processing as a single MR job. To mitigate the out-of-memory error, we relate some environment variables with the Yet Another Resource Negotiator (YARN) architecture and provide some sample error tracking methods. As a further contribution, this study considers limitations associated with using AWS, which inform our recommendations for future work.
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