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📈 آشنایی با داده کاوی

ایده های اصلی در داده کاوی_بخش پنجم

در ۴ بخش قبلی چند مبحث مهم از داده کاوی معرفی شد. امروز در ادامه پست‌های پیشین مبحث مهمی ارائه خواهد شد.

5️⃣کاهش داده‌ها و کاهش بُعد

الگوریتم‌های داده‌کاوی وقتی تعداد متغیرها کم است یا ثبت‌های انجام شده قابلیت گروه بندی (گروه‌های همگن) دارند، بهتر است. مثلا برای یک تحلیل‌تحلیلگر کار با هزاران نوع محصول قطعا دردسرها و سختی‌های بسیاری دارد؛ اما وقتی انواع محصول را در گروه بندی های مشخصی قرار می‌دهیم کار به نسبت ساده‌تر خواهد شد.

در داده‌کاوی فرایند ادغام ثبت‌های بسیار زیاد در یک مجموعه کوچکتر اصطلاحا کاهش داده‌ها و کاهش تعداد متغیرها را کاهش بُعد می‌نامند.

کاهش بُعد یک گام معمول در داده‌کاوی است که معمولا قبل از به کارگیری روش‌های داده‌کاوی انجام می‌شود و در بهبود قابلیت مدیریت و قابل تفسیر بودن پیشگویی موثر است.

‼️ادامه دارد...

#داده_کاوی
@agna_co_2020 📈✍️

AGNA-Company
📈 آشنایی با داده کاوی

ایده های اصلی در داده کاوی_بخش پنجم

در ۴ بخش قبلی چند مبحث مهم از داده کاوی معرفی شد. امروز در ادامه پست‌های پیشین مبحث مهمی ارائه خواهد شد.

5️⃣کاهش داده‌ها و کاهش بُعد

الگوریتم‌های داده‌کاوی وقتی تعداد متغیرها کم است یا ثبت‌های انجام شده قابلیت گروه بندی (گروه‌های همگن) دارند، بهتر است. مثلا برای یک تحلیل‌تحلیلگر کار با هزاران نوع محصول قطعا دردسرها و سختی‌های بسیاری دارد؛ اما وقتی انواع محصول را در گروه بندی های مشخصی قرار می‌دهیم کار به نسبت ساده‌تر خواهد شد.

در داده‌کاوی فرایند ادغام ثبت‌های بسیار زیاد در یک مجموعه کوچکتر اصطلاحا کاهش داده‌ها و کاهش تعداد متغیرها را کاهش بُعد می‌نامند.

کاهش بُعد یک گام معمول در داده‌کاوی است که معمولا قبل از به کارگیری روش‌های داده‌کاوی انجام می‌شود و در بهبود قابلیت مدیریت و قابل تفسیر بودن پیشگویی موثر است.

‼️ادامه دارد...

#داده_کاوی
@agna_co_2020 📈✍️
hottg.com/agna_co_2020/825
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📈 آشنایی با داده کاوی

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