یادگیری ماشین

کمتر از ۱ دقیقه مطالعه

انواع روش‌های یادگیری

برای معرفی روش‌های مختلف یادگیری از بحث را با آنچه در قسمت قبل بیان شده پی می‌گیریم. انواع روش‌های یادگیری (یافتن رابطه‌ي بین ورودی و خروجی) را می‌توان به چند دسته‌ی زیر تقسیم نمود:

  • روش با ناظر (supervised learning): در این روش، مقادیر را به صورت کامل در اختیار داریم یعنی به ازای هر ورودی، خروجی متناظر با آن را هم داریم.

  • روش بدون ناظر (unsupervised learning): در این حالت خروجی‌ها یعنی ها به ازای مقادیر ورودی متناظر آن‌ها در دسترس نیستند ولی ما می‌دانیم که ورودی‌ها را می‌توان در تعداد معینی کلاس (خوشه) قرار داد ( یا به اصطلاح داده‌ها را خوشه‌بندی نمود).

  • روش یادگیری نیمه نظارتی (semi-supervised learning): این روش ترکیبی از دو روش بالاست که در آن ابتدا فرض بر این است که داده‌ها را با استفاده از مجموعه‌‌ی آموزشی خوشه‌بندی نمود و سپس با استفاده از مدل بدست آمده داده‌های جدیدی را که به عنوان داده‌های آزمایشی به مدل ارائه می‌شوند را دسته‌بندی نمود.

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