طبقه‌بندی بااحتیاط داده‌های ابرمستطیلی، ابردایروی و ابربیضوی با حداکثر حاشیه متقارن نسبت به لبه داده‌ها
محورهای موضوعی : مهندسی برق و کامپیوتریحیی فرقانی 1 , میثاق سادات حجازی 2 , هادی صدوقی یزدی 3
1 - Islamic Azad University, Mashhad branch
2 - دانشگاه فردوسی مشهد
3 - دانشگاه فردوسی مشهد
کلید واژه: داده توأم با عدم قطعیتزمان آزمونزمان آموزشطبقه‌بند مقاوم بااحتیاط,
چکیده مقاله :
مدل طبقه‌بندی مقاوم، یک مدل غیر استاندارد برای یادگیری طبقه‌بند بر اساس یک مجموعه داده توأم با عدم قطعیت است. به هر مدل طبقه‌بندی که در مجموعه جواب‌های ممکن آن، جواب بی‌معنی وجود داشته باشد، مدل بی‌احتیاط گفته می‌شود. جواب بهینه یک مدل طبقه‌بندی مقاوم بی‌احتیاط به ازای یک مجموعه داده آموزشی، ممکن است ابرصفحه نباشد که در این صورت امکان طبقه‌بندی داده‌ها در مرحله آزمون میسر نخواهد بود. در این مقاله مدل‌های طبقه‌بند مقاوم بی‌احتیاط معرفی و مشکلات آنها بررسی شده و سپس با تغییر تابع ضرر در طبقه‌بند مقاوم، مدل طبقه‌بندی مقاوم بااحتیاط برای ممانعت از بی‌احتیاطی معرفی می‌شود. مدل بااحتیاط پیشنهادی، استاندارد شده و راهکارهایی برای کاهش زمان آموزش و زمان آزمون آن ارائه می‌گردد. در آزمایشات از مدل طبقه‌بند مقاوم بااحتیاط پیشنهادی در مقایسه با چند مدل مقاوم بی‌احتیاط، برای طبقه‌بندی مجموعه داده‌های آموزشی ناقص و مجموعه داده‌های آموزشی قطعی کامل استفاده شد. نتایج به دست آمده نشان داد که در مجموعه داده‌های ناقص، مدل پیشنهادی زمان آموزش و زمان آزمون و نرخ خطای کمتری نسبت به مدل‌های بی‌احتیاط داشت. همچنین در مجموعه داده‌های کامل قطعی، مدل پیشنهادی زمان آموزش و زمان آزمون کمتری نسبت به مدل‌های بی‌احتیاط داشت. نتایج به دست آمده کارایی افزودن احتیاط به طبقه‌بند مقاوم را تأیید نمود.
A robust classification model is a non-standard model for classifying learning based on an uncertain data set. An incautious model is said to have any meaningless answer to any classification model in its possible set of possible solutions. The optimal answer for a cautious robust classification model for a training data set may not be the hyper-page, in which case it will not be possible to classify the data at the test stage. In this paper, incautious robust classification models are introduced and their problems are investigated and then by changing the loss function of a robust classifier, a cautious robust classification model is presented to prevent incautious. The proposed cautious model is standardized and solutions are provided to reduce the training time and test time. In the experiments, the proposed model was compared with some incautious robust models to classification incomplete training data set, and complete definitive training data set. The results showed that in the incomplete data set, the proposed model had less training time and error rate than incautious models. Also, in the complete definitive data set, the proposed model training time and test time were less than incautious models. The results approved that adding caution to a robust classifier is efficient.
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