Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"audit logs"”.
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On the forensic validity of approximated audit logs
Auditing is an increasingly essential tool for the defense of computing systems, but the unwieldy nature of log data imposes tremendous burdens on administrators and analysts. To address this issue, a variety of techniques have been proposed for approximating the contents of raw audit logs, …
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Modeling and detecting anomalous topic access in EMR audit logs
Recent use of Electronic Medical Records in the hospitals has raised many privacy concerns regarding confidential patient information which can be accessed by various users in the hospital's complex and dynamic environment. There has been considerable success in developing strategies to detect …
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User behavior pattern based security provisioning for distributed systems
… Identifying user behavior patterns by analyzing audit logs is challenging. Lacking a general user behavior pattern model restricts the effective usage of data mining techniques. Limited access to real world audit logs due to privacy concerns also blocks user behavior leaning. The central problem …
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Data-driven Algorithms for Critical Detection Problems: From Healthcare to Cybersecurity Defenses
… For APT detection, the large size of system audit logs hinders real-time detection. We introduce Madeline, a lightweight system that efficiently processes voluminous logs with compact representations, overcoming real-time detection bottlenecks. These contributions provide deployable and …
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Bioflow: A web based workflow management system for design and execution of genomics pipelines
… to quickly add tools for use in any workflow. Audit logs are maintained at each stage, which helps users to easily identify errors and fix them.
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A Machine Learning Framework for Securing Patient Records
… not sufficient. Access to EPR is often heavily audited within healthcare infrastructures. However, this data is regularly left untouched in a data silo and only ever accessed on an ad hoc basis. In addition, external threats need to be identified, such as phishing or social engineering …
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Access control obligation specification and enforcement using behavior pattern language
… of the obligation by looking into the audit logs. However, this method is extremely inadequate for ongoing obligations. Therefore, we proposed a compliance engine by utilizing complex event processing in order to make a decision to revoke or continue the access in a timely manner. We …
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User-centered intrusion detection using heterogeneous data
… we ask how to apply anomaly detection to IAM audit logs containing a restricted set of mixed (i.e. numeric and categorical) attributes. Then, we inquire how anomalous user behavior can be separated from normality, and this separation evaluated without ground truth. Finally, we examine how the …
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Implementation of a national electronic health record in the specialised setting of neonatal intensive care units
… quantifiably measured using background system audit logs and system reports to gain a comprehensive analysis of the workflow compliance. Data were analysed using means and standard deviations. Pre – Post mean differences, and their 95% confidence intervals were calculated and their statistical …
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Facilitating patient and administrator analyses of electronic health record accesses
… EHRs to comply with patients’ requests for logs of the accesses to their records. In this work, we outline our system for complying with this regulation while easing the burden of compli- ance for providers and simultaneously providing patients with informative and satisfying information …
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Towards trustworthy foundations for operating system Forensics
… a break-in, covering their tracks from system logs in order to frustrate the efforts of investigators. In response to this threat, a variety of secure logging solutions have appeared in the industry and the literature that attempt to provide tamper-resistance (e.g., Write-Once-Read-Many drives, …