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Database analysis and the recovery of deleted record are two of the most important parts in digital forensics. This paper focuses on the management mechanism of Android S MS database, involving the analyses of write-in rules of database and log files during the data updating process. Based on the research results, a recovery method for database operating(More)
It is well-known that the existence of unstable zero dynamics is recognized as a major barrier in many control systems, and deeply limit the achievable control performance when controlling a system. When a continuous-time multivariable system with at least one of relative degrees greater than two is discretized in the case of the time delay and a zero-order(More)
Automatic reassembly of log file fragments from a collection of mixed fragments is one of the most important process during log file carving. In this paper we propose a general process model and design an algorithm based on graph theory for automatic reassembly of log file fragments. Finally, an experiment is designed and explored and results demonstrated(More)
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