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Physical Sciences and Mathematics Commons

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Full-Text Articles in Physical Sciences and Mathematics

Inference-Based Forensics For Extracting Information From Diverse Sources, Robert J. Walls Nov 2014

Inference-Based Forensics For Extracting Information From Diverse Sources, Robert J. Walls

Doctoral Dissertations

Digital forensics is tasked with the examination and extraction of evidence from a diverse set of devices and information sources. While digital forensics has long been synonymous with file recovery, this label no longer adequately describes the science’s role in modern investigations. Spurred by evolving technologies and online crime, law enforcement is shifting the focus of digital forensics from its traditional role in the final stages of an investigation to assisting investigators in the earliest phases — often before a suspect has been identified and a warrant served. Investigators need new forensic techniques to investigate online crimes, such as child …


Privacy-Preserving Sanitization In Data Sharing, Wentian Lu Nov 2014

Privacy-Preserving Sanitization In Data Sharing, Wentian Lu

Doctoral Dissertations

In the era of big data, the prospect of analyzing, monitoring and investigating all sources of data starts to stand out in every aspect of our life. The benefit of such practices becomes concrete only when analysts or investigators have the information shared from data owners. However, privacy is one of the main barriers that disrupt the sharing behavior, due to the fear of disclosing sensitive information. This dissertation describes data sanitization methods that disguise the sensitive information before sharing a dataset and our criteria are always protecting privacy while preserving utility as much as possible. In particular, we provide …