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بیش برازش یا Overfitting چیست؟
یکی از ویژگی های یک مدلسازی خوب، برازش مناسب آن است. یعنی مدل بتواند تا حدود زیادی داده ها را تخمین بزند. اما گاهی پیش می آید که مدل برازش خوبی برای داده های نمونه (Training) دارد اما توفیق چندانی در برازش داده های جدید ندارد. یعنی مدل روی داده استفاده شده برای یادگیری بسیار خوب نتیجه می‌دهد، اما بر روی داده جدید دارای خطای زیاد است.
این اتفاق زمانی ممکن است بیفتد که مجموعه داده ها خیلی کوچک یا خیلی بزرگ و پیچیده باشد و همچنین شامل داده های نویزی نیز باشد ( البته کوچک بودن نیز به تنهایی می تواند مشکل ساز باشد حتی بدون داده های نویزی ).

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#بیش_برازش
#Over_fitting


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Python4Finance
بیش برازش یا Overfitting چیست؟
یکی از ویژگی های یک مدلسازی خوب، برازش مناسب آن است. یعنی مدل بتواند تا حدود زیادی داده ها را تخمین بزند. اما گاهی پیش می آید که مدل برازش خوبی برای داده های نمونه (Training) دارد اما توفیق چندانی در برازش داده های جدید ندارد. یعنی مدل روی داده استفاده شده برای یادگیری بسیار خوب نتیجه می‌دهد، اما بر روی داده جدید دارای خطای زیاد است.
این اتفاق زمانی ممکن است بیفتد که مجموعه داده ها خیلی کوچک یا خیلی بزرگ و پیچیده باشد و همچنین شامل داده های نویزی نیز باشد ( البته کوچک بودن نیز به تنهایی می تواند مشکل ساز باشد حتی بدون داده های نویزی ).

#پایتون_مالی
#بیش_برازش
#Over_fitting


پایتون برای مالی در تلگرام https://hottg.com/python4finance
پایتون برای مالی در بله https://ble.im/python4finance
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بیش برازش یا Overfitting چیست؟

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Many modern travelers appear to struggle with managing various aspects of their finances simultaneously while abroad, such as banking, budgeting, investing, trading, and saving. It is important to have apps installed on the device that will help you carry out these necessary tasks.

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