Digital

Statistical methods for digital image forensics: Algorithm mismatch for blind spatial steganalysis and score-based likelihood ratios for camera device identification

October 20, 2020 / Publication / Digital

Forensic science currently faces a variety of challenges. Statistically suitable reference databases need to be developed and maintained. Subjective methods that can introduce bias need to be replaced by objective

Statistical Methods for the Forensic Analysis of User-Event Data

September 1, 2020 / Publication / Digital

A common question in forensic analysis is whether two observed data sets originate from the same source or from different sources. Statistical approaches to addressing this question have been widely

Hunting wild stego images, a domain adaptation problem in digital image forensics

June 26, 2020 / Publication / Digital

Digital image forensics is a field encompassing camera identication, forgery detection and steganalysis. Statistical modeling and machine learning have been successfully applied in the academic community of this maturing field.

Statistical Methods for the Forensic Analysis of Geolocated Event Data

June 5, 2020 / Presentation Slides / Digital

A common question in forensic analysis is whether two observed data sets originated from the same source or from different sources. Statistical approaches to addressing this question have been widely

CSAFE 2020 All Hands Meeting

May 19, 2020 / Webinar / Bloodstain, Digital, Firearms and Toolmarks, Footwear, Forensic Statistics, Handwriting, Implementation and Practice, Latent Print, Training and Education

The 2020 All Hands Meeting was held May 12 and 13, 2020 and served as the closing to the last 5 years of CSAFE research and focused on kicking off

Android App Forensic Evidence Database (AndroidAED)

February 17, 2020 / Presentation Slides / Digital

After attending this presentation, attendees will better understand how AndroidAED will be beneficial for academic researchers whose studies relate to mobile applications that grant them the ability to search through

A Wild Manhunt for Stego Images Created by Mobile Apps

February 17, 2020 / Presentation Slides / Digital

As mobile Internet and telecommunication technology develops at high speed, the digital image forensics academic community is facing a growing challenge. • Mobile applications (Apps) allow a user to easily

Quantifying the association between discrete event time series with applications to digital forensics

January 27, 2020 / Publication / Digital

We consider the problem of quantifying the degree of association between pairs of discrete event time series, with potential applications in forensic and cybersecurity settings. We focus in particular on

Score-based Likelihood Ratios for Camera Device Identification

January 26, 2020 / Presentation Slides / Digital

Many areas of forensics are moving away from the notion of classifying evidence simply as a match or non-match. Instead, some use score-based likelihood ratios (SLR) to quantify the similarity

Algorithm mismatch in spatial steganalysis

January 26, 2020 / Presentation Slides / Digital

The number and availability of stegonographic embedding algorithms continues to grow. Many traditional blind steganalysis frameworks require training examples from every embedding algorithm, but collecting, storing and processing representative examples

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