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Monitoring Through Eye-Movement Data in Context-Aware Adaptive Software Systems: A Case Study On Endo-Neurosurgery Traıning Programs

Oluşturulma Tarihi: 26-01-2018

Niteleme Bilgileri

Tür: Tez

Alt Tür: Doktora (Mühendislik)

Yayınlanma Durumu: Yayınlanmamış

Dosya Biçimi: PDF

Dil: İngilizce

Yazar(lar): Menekşe, Gonca Gökçe (Yazar),

Emeği Geçen(ler): Çağıltay, Nergiz Ercil (Danışman),

Anahtar Kelimeler

context-aware systems, self-adaptive software systems, eye-tracking, eye-movement events, eye-movement classification algorithms, surgical skill levels, surgical training programs


Today, modern software is becoming very complex which needs to be compatible with constant changes in the environment. They required to support autonomic behaviors by monitoring the relevant phenomena of the environment and analyzing the collected data to better understand the possible consequences of the changes in the environment. In other words, by monitoring the relevant phenomena of the environment and analyzing the collected data to better understand the possible consequences of the changes in the environment, these type of software adapt themselves to the environment. Context defined as anything that can be observed by the software system including end-user, computing, and primary features of identity, location, time, and physical conditions at runtime. Hence, Context aware adaptive software (CAASS) architecture can be implemented at different levels for different purposes by monitoring a wide range of data. However, currently there is no conceptual framework showing the level and scope of the adaptation performed by these systems.viiAccordingly, in this study, first the related literature is examined to investigate the main dimensions of CAASS. Afterwards, a conceptual framework is proposed to address the level and scope of adaptation performed by a specific CAASS. The proposed framework has three dimensions namely the definition of the context of the adaptation, definition of the event that is planned to be adapted and finally the plan showing how the adaptation aimed to be performed. Additionally, a case study is also conducted for endo-neurosurgery education programs through the proposed conceptual framework. Results showed that by monitoring eye-movement events of the surgeons, their skill levels can be estimated with a high precision (91.3%). Accordingly, for this specific case, it is shown that, through the eye-movement events of surgeons, the content can be adapted according to the behaviors of the surgeons. The results of this study show evidences that, by regularly assessing their skill levels and evaluating the difficulty levels of each computer-based simulation scenario through eye movement events of the trainees, order of these scenarios in the curriculum can be adapted to the user skill levels and behaviors under different hand conditions. This will help to create a specific curriculum for each trainee that is adapted dynamically to their skill and knowledge. This study has two main contributions. First it proposes a conceptual model that can be used to evaluate the scope and the level of adaptation for CAASS. This information may help the researchers and the developers to better evaluate and compare the CAASS. The second contribution of this thesis study is the implementation of the proposed model on endo-neurosurgery domain. The field of endo-neurosurgery education programs have several problems. The main problem of these programs is the skill-based training opportunities. As the training and skill development had to be provided in the operating room, there are several drawbacks of these education programs such as the ethical considerations from the patients’ perspective, limited time and cases as well as the risk of patient safety. Currently, there are not many alternative training opportunities for the surgical training programs. As the skill improvement is very critical for these programs, the individual skill-based training opportunities are required. Even there are someviiiexamples of computer-based simulations for supporting surgical training programs, there are very limited examples of curriculum integrated models. Additionally, there is no instructional model of CAASS for the surgical education programs especially in the endo-neurosurgery education programs. We believe that, because of its very nature, CAASS approach may provide several benefits for the endo-neurosurgery education programs. However, as the process of creating CAASS for the field of endo-neurosurgery education programs is a very complex, in this thesis study a level of CAASS conceptual model is proposed. The findings of this thesis study is aimed to help future studies to better build CAASS for the field of endo-neurosurgery education programs and to better integrate these systems into the current educational programs.






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