وفّر 50٪ من خلال الاشتراك السنوي في مجرة واحصل على تصفح لا محدود لأفضل محتوى عربي على الإنترنت.
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عبارة عن تقنية تُستخدم في التعلم الآلي لخداع أو تضليل النماذج بالاعتماد على مدخلات خبيثة تُعرف باسم الأمثلة التنافسية أو العدائية (Adversarial Examples). يُستخدم التعلم الآلي التنافسي في مجال واسع من التطبيقات، لكن أكثر استخداماته شيوعاً تنفيذ الهجمات الهادفة إلى تخريب وتعطيل أنظمة التعلم الآلي عن العمل. وتكمن خطورة هذه الهجمات في أن نفس الصنف منها يمكن تغييره بسهولة للعمل مع نماذج متعددة ذات بُنى مختلفة ومدربة بمجموعات بيانات مختلفة أيضاً.
يمكن تقسيم هجمات التعلم الآلي التنافسي إلى نوعين هما مدخلات سوء التصنيف وتسميم البيانات. وتعد مدخلات سوء التصنيف النوع الأكثر شيوعاً؛ حيث يقوم فيها المهاجمون بإخفاء محتوى خبيث في فلاتر خوارزميات التعلم الآلي. ويكون الهدف من ذلك إجبار النظام على تصنيف مجموعة بيانات معينة بشكل خاطئ. أما بالنسبة لتسميم البيانات فيتم فيه إضافة بيانات خاطئة أو غير دقيقة إلى مجموعة البيانات لتخفيض الدقة الإجمالية للخرج.
يتم التصدي لهجمات التعلم الآلي التنافسي بطريقتين هما:
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