Forensics: Signature Analysis
Forensic examination and analysis of writer identification and verification are reported as having "applications in various domains. Especially in the field of biometric recognition. Forensic Document Examination (FED) is a process that clarifies the writer of a handwritten document. Applications included are signatures verification. FED is such that is reported to have been based primarily on manual examination by experts with only recent automation of analysis methods being initiated.
State of the Art Systems
Two state of the art systems presently exist to "address the tasks of writer identification and verification" and include: (1) the system that uses Hidden Markov Models (HMMs); and (2) the system based on Gaussian Mixture Models (GMMs) to model a person's handwriting. (Sclapbach and Bunke, nd) In addition, there are reported to be "various feature selection methods applied to improve the performance of an existing off-line writer identification system. The performance of the system is significantly impro0vec by selected a good subset of the original feature set. The methods discussed can be potentially applied to any set of features and are thus not restricted to off-line handwriting." (Sclapbach and Bunke, nd)
III. Online Signature Analysis
On-line handwriting data requires the use of a GMM-based system for identification of the writer. It is reported that as a biometric, signature 'Has a number of properties that make it especially appealing. Signature is a behavioral biometric where the users is asked to perform a specific action. Therefore, it is impossible to be stolen and hard to be copied. A signature can be easily, inexpensively, and non-invasively captured. Especially as mobile devices such as smart phones, PDAs and Tablet PC's with built...
DIBS Forensic Workstation - Complete solution for problems faced by investigator of computer crimes; FREDDIE - Forensic recovery of evidence deice diminutive interrogation equipment; EnCASE - Fully integrated forensic application for Windows; and ProDiscover DFT - completely integrated Windows ™ application for the collection, analysis, management and reporting of computer disk evidence. Designed specifically to meet NIST (National Institute of Standards and Technology) standards. (Timberline Technologies, 2005) Harris (2005) states that if anti-forensic
Justification of a Forensic Unit Our Agency has just received $3 million grant from the federal government because of the efficient method that the unit employs in running the department. Additionally, the City Council has agreed to continue assisting the unit with additional funding at the end of the three years provided the department is productive and serve the citizens well. However, the department requires presenting a different budget from the
Efficacy of Handwriting Analyses as Forensic Evidence Humankind has been writing for millennia, but it has only been in the last 100 years or so that individual handwriting samples could be distinguished by forensic document examiners to the extent that their testimony was deemed admissible as evidence in a court of law. In recent years, this analysis has been augmented by sophisticated handwriting analytical devices that are being used by national
Graphology Forensics and DNA: Graphology Graphology entails the study of an individual's handwriting as theory or practice when it comes to inferring an individual's character, attitudes, disposition from their handwriting, graphology is generally termed a pseudoscience .this term is at times incorrectly used in reference to forensic document examination. Graphology has been marred with a lot of controversy for over a century. Supporters of graphology point out the anecdotal evidence of very
Digital Forensics to Capture Data Sources Network Intrusion Prioritizing Data Sources Account Auditing Live System Data Intrusion Detection System Event Log Analysis Malware Installation Prioritizing data sources Activity Monitoring Integrity Checking Data Mining Insider File Deletion Prioritizing data sources Use of Uneraser program Recovers the Deleted Data Network Storage A recent advance in information technology has brought about both benefits and threats to business organizations. While businesses have been able to achieve competitive market advantages through the internet technology, the hackers are also using the opportunities
Abstract This paper discusses the origins of fingerprinting and the usage of fingerprint analysis in the field of forensics. It traces the history of the practice from the 19th century on into the 20th and discusses the methods used to obtain fingerprints from a crime scene. It also examines some of the problems of fingerprint analysis and how it is not a foolproof manner of identification and never has been. It
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