Engineering Commons^™

Dynamic Target Classification In Wireless Sensor Networks, Ying Sun

Masters Theses

Information exploitation schemes with high-accuracy and low computational cost play an important role in Wireless Sensor Networks (WSNs). This thesis studies the problem of target classification in WSNs. Specifically, due to the resource constraints and dynamic nature of WSNs, we focus on the design of the energy-efficient solutionwith high accuracy for target classification in WSNs.

Feature extraction and classification are two intertwined components in pattern recognition. Our hypothesis is that for each type of target, there exists an optimal set of features in conjunction with a specific classifier, which can yield the best performance in terms of classification accuracy using …

Extending Hardware Based Mandatory Access Controls To Multicore Architectures, Brian Lewis Sharp

Masters Theses

Memory based vulnerabilities have plagued the computer industry since the release of the Morris worm twenty years ago. In addition to buffer overflow attacks like the Morris worm, format strings, ret-libC, and heap double free() viruses have been able to take advantage of pervasive programming errors. A recent example is the unspecified buffer overflow vulnerability present in Mozilla Firefox 3.0. From the past one can learn that these coding mistakes are not waning. A solution is needed that can close off these security shortcomings while still being of minimal impact to the user. Antivirus software makers continuously overestimate the lengths …