The digital forensics of GPS path records and the discovery of previous Facebook IDs on a Pocket PC PDA

2011 ◽  
Vol 7 (12) ◽  
pp. 2627-2636
Author(s):  
Hai-Cheng Chu
Keyword(s):  
Digital Forensics ◽  
Pocket Pc

Pocketcomputer-unterstütztes Assessment mit MONITOR

2001 ◽  
Vol 22 (4) ◽  
pp. 249-266 ◽  
Author(s):  
Christoph Käppler ◽  
Georg Brügner† ◽  
Jochen Fahrenberg
Keyword(s):  
Pocket Pc

Zusammenfassung: Pocketcomputer eignen sich, psychologische Daten in Feldstudien technisch zuverlässiger als mit Fragebogen bzw. Tagebüchern zu erfassen. In einer Methodenstudie wurde MONITOR, ein für den Pocket-PC PSION geschriebenes, flexibles Programm eingesetzt. Unter Alltagsbedingungen wurden von 61 Studierenden verschiedener Fächer an zwei Tagen mit je fünf Eingaben Selbstprotokolle erhoben. Dazu gehörten Settingmerkmale wie Ort und Tätigkeit, Befindlichkeit sowie zwei Aufmerksamkeitstests. Zusätzlich wurde ein abendlicher und ein morgendlicher Rückblick erhoben. Zwischen den Erhebungstagen und zwischen verschiedenen Tageszeiten ergaben sich Unterschiede, die teils als Übungs- und Gewöhnungseffekte, teils als zirkadiane Effekte interpretierbar sind. Rückblickend wird das Befinden negativer beurteilt, als es aus dem Mittelwert der einzelnen Protokolle zu erwarten war. Dieser negative Retrospektionseffekt war bei emotional labilen Personen stärker ausgeprägt. Diese Befunde und andere Vorzüge der computer-unterstützten Methodik legen eine breitere Anwendung nahe.

Smart Grid Digital Forensics Investigation Framework

2020 ◽  
Author(s):  
Haris Iskandar Mohd Abdullah ◽  
Muhammad Zulhusni Mustaffa ◽  
Fiza Abdul Rahim ◽  
Zul-Azri Ibrahim ◽  
Yunus Yusoff ◽  
...  
Keyword(s):  
Smart Grid ◽  
Digital Forensics

scholarly journals A Dataset of Photos and Videos for Digital Forensics Analysis Using Machine Learning Processing

Data ◽  
2021 ◽  
Vol 6 (8) ◽  
pp. 87
Author(s):  
Sara Ferreira ◽  
Mário Antunes ◽  
Manuel E. Correia
Keyword(s):  
Machine Learning ◽  
Digital Forensics ◽  
State Of The Art ◽  
Forensic Analysis ◽  
Third Party ◽  
Support Vector ◽  
Multimedia Content ◽  
Digital Forensic ◽  
Video Frames ◽  
Forensic Tools

Deepfake and manipulated digital photos and videos are being increasingly used in a myriad of cybercrimes. Ransomware, the dissemination of fake news, and digital kidnapping-related crimes are the most recurrent, in which tampered multimedia content has been the primordial disseminating vehicle. Digital forensic analysis tools are being widely used by criminal investigations to automate the identification of digital evidence in seized electronic equipment. The number of files to be processed and the complexity of the crimes under analysis have highlighted the need to employ efficient digital forensics techniques grounded on state-of-the-art technologies. Machine Learning (ML) researchers have been challenged to apply techniques and methods to improve the automatic detection of manipulated multimedia content. However, the implementation of such methods have not yet been massively incorporated into digital forensic tools, mostly due to the lack of realistic and well-structured datasets of photos and videos. The diversity and richness of the datasets are crucial to benchmark the ML models and to evaluate their appropriateness to be applied in real-world digital forensics applications. An example is the development of third-party modules for the widely used Autopsy digital forensic application. This paper presents a dataset obtained by extracting a set of simple features from genuine and manipulated photos and videos, which are part of state-of-the-art existing datasets. The resulting dataset is balanced, and each entry comprises a label and a vector of numeric values corresponding to the features extracted through a Discrete Fourier Transform (DFT). The dataset is available in a GitHub repository, and the total amount of photos and video frames is 40,588 and 12,400, respectively. The dataset was validated and benchmarked with deep learning Convolutional Neural Networks (CNN) and Support Vector Machines (SVM) methods; however, a plethora of other existing ones can be applied. Generically, the results show a better F1-score for CNN when comparing with SVM, both for photos and videos processing. CNN achieved an F1-score of 0.9968 and 0.8415 for photos and videos, respectively. Regarding SVM, the results obtained with 5-fold cross-validation are 0.9953 and 0.7955, respectively, for photos and videos processing. A set of methods written in Python is available for the researchers, namely to preprocess and extract the features from the original photos and videos files and to build the training and testing sets. Additional methods are also available to convert the original PKL files into CSV and TXT, which gives more flexibility for the ML researchers to use the dataset on existing ML frameworks and tools.

Digital forensics and evolving cyber law: case of BIMSTEC countries

2019 ◽  
Vol 22 (4) ◽  
pp. 744-752
Author(s):  
Sisira Dharmasri Jayasekara ◽  
Iroshini Abeysekara
Keyword(s):  
Information Technology ◽  
Design Methodology ◽  
Digital Forensics ◽  
Content Type ◽  
Global Context ◽  
Study Approach ◽  
Legal Frameworks ◽  
Work Done

Purpose The purpose of this paper is to discuss the role of digital forensics in an evolving environment of cyber laws giving attention to Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC) countries, comprising Bangladesh, India, Myanmar, Sri Lanka, Thailand, Nepal and Bhutan, in a dynamic global context. Design/methodology/approach This study uses a case study approach to discuss the digital forensics and cyber laws of BIMSTEC countries. The objective of the study was expected to be achieved by referring to decided cases in different jurisdictions. Cyber laws of BIMSTEC countries were studied for the purpose of this study. Findings The analysis revealed that BIMSTEC countries are required to amend legislation to support the growth of information technology. Most of the legislation are 10-15 years old and have not been amended to resolve issues on cyber jurisdictions. Research limitations/implications This study was limited to the members of the BIMSTEC. Originality/value This paper is an original work done by the authors who have discussed the issues of conducting investigations with respect to digital crimes in a rapidly changing environment of information technology and deficient legal frameworks.

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