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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Automatic Sleep Stages Classification, Maryam Zokaeinikoo
Automatic Sleep Stages Classification, Maryam Zokaeinikoo
Masters Theses
In this thesis, we first develop an efficient automated classification algorithm for sleep stages identification. Polysomnography recordings (PSGs) from twenty subjects were used in this study and features were extracted from the time{frequency representation of the electroencephalography (EEG) signal. The classification of the extracted features was done using random forest classifier. The performance of the new approach is tested by evaluating the accuracy of each sleep stages and total accuracy. The results shows improvement in all five sleep stages compared to previous works.
Then, we present a simulation decision algorithm for switching between sleep interventions. This method improves the percentage …
A Meta-Architecture Analysis For A Coevolved System-Of-Systems, George Anthony Muller Iv
A Meta-Architecture Analysis For A Coevolved System-Of-Systems, George Anthony Muller Iv
Masters Theses
"Modern engineered systems are becoming increasingly complex. This is driven in part by an increase in the use of systems-of-systems and network-centric concepts to improve system performance. The growth of systems-of-systems allows stakeholders to achieve improved performance, but also presents new challenges due to increased complexity. These challenges include managing the integration of asynchronously developed systems and assessing SoS performance in uncertain environments.
Many modern systems-of-systems must adapt to operating environment changes to maintain or improve performance. Coevolution is the result of the system and the environment adapting to changes in each other to obtain a performance advantage. The complexity …