The length of studies of the students who "linger" in Higher Education has not been justified in many countries, and the Higher Education Institutes try to solve the problem using various methods. The problem of students who "linger" in their Departments beyond the six or seven years is seen as complex one, in the Greek Higher Education. Two main alternative methods have been discussed: Giving the students who "linger" a low priority for registration in the laboratory classes, and limiting the number of times of attending laboratory based courses. Eventually, according to the new legislation the Greek Higher Education Institutes must cut off access to the students who "linger" too long. This study focuses on this hard problem. Clustering techniques and the mining of Association rules are used. The results of clustering and the generation of the association rules are based on students' questionnaires collected in the laboratory classes. Various interesting results and rules are extracted and discussed.
Quality assurance in higher education has been established officially, through the establishment of appropriate procedures and through the appointment of supervising bodies. After an initial period of experimental application of evaluation activities, the need for optimization of processes and exploitation of recorded observation has arisen; the obvious aim is the provision of educational processes in accordance with the quality standards. Within the aforementioned framework the Balanced Scorecard technique provides a useful framework that assists in converting the organizational scope to measurable indexes and processes. This procedure however, in order to be applied to the educational domain, demands an appropriate adjustment of the model to the educational needs. Within this framework, this work describes an attempt to develop the required infrastructure in processes, information systems and regulations for a technological institution, in order to ensure quality in relation to the goals agreed by the Hellenic Quality Assurance and Accreditation Agency and support the administration of a higher education institution in taking decisions in a contemporary and continuously improved manner.
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