Τρόποι αντιμετώπισης της σύγχυσης (confounding) των παραγοντικών επιδράσεων σε κλασματικούς παραγοντικούς σχεδιασμούς, μέσω αποδοτικών follow - up πειραμάτων
Confrontation of confounding of factorial effects in fractional factorial designs, using efficient planning of follow - up experiments
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Keywords
Παραγοντικοί σχεδιασμοί ; Κλασματικοί παραγοντικοί σχεδιασμοί ; Πίνακας προσήμων ; Ταυτόσημες επιδράσεις ; Follow-up πειράματα ; Σύγχιση ; Τεχνική αναδίπλωσης ; Επίδραση της ομαδοποίησης ; Factorial designs ; Fractional factorial designs ; Sign table ; Confounding ; Aliasing ; Follow-up experiments ; Foldover ; BlockingAbstract
The outline of this thesis includes the theoretical framework which is a detailed description of factorial designs (full and fractional), the experimental framework involving follow up experiments giving prominence to the increased efficiency of fractional factorial designs, the results and the conclusions drawn from this study.
The methods for de-aliasing were foldover and a combination of foldover and blocking methods as well. The foldover technique results in de-aliasing the total effects or a few effects of a fractional factorial experiment. The most important factors affecting the final results were: the initial fraction, the number of resolution (odd, even) and the presence of factors in the initial defining relation.
Postgraduate Studies Programme
Εφαρμοσμένη ΣτατιστικήDepartment
Σχολή Χρηματοοικονομικής και Στατιστικής. Τμήμα Στατιστικής και Ασφαλιστικής ΕπιστήμηςNumber of pages
62Language
GreekCollections
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Attribution-NonCommercial-NoDerivatives 4.0 Διεθνές
Attribution-NonCommercial-NoDerivatives 4.0 Διεθνές