به‌طور‌کلی یک شبکه عصبی از سه لایه کلی تشکیل می‌شود که به ترتیب لایه ورودی (Input layer)،لایه پنهان (Hidden layer) و لایه خروجی (Output layer) نام دارند. هر چند شبکه های عصبی می‌توانند لایه‌هایی به جز این‌ها را نیز داشته باشند. اگر لایه پنهان شامل بیش از یک زیرلایه باشد، آن را یک شبکه عصبی عمیق در نظر می‌گیریم.
BY آکادمی یادگیری ماشین
Some messages aren’t supposed to last forever. There are some Telegram groups and conversations where it’s best if messages are automatically deleted in a day or a week. Here’s how to auto-delete messages in any Telegram chat. You can enable the auto-delete feature on a per-chat basis. It works for both one-on-one conversations and group chats. Previously, you needed to use the Secret Chat feature to automatically delete messages after a set time. At the time of writing, you can choose to automatically delete messages after a day or a week. Telegram starts the timer once they are sent, not after they are read. This won’t affect the messages that were sent before enabling the feature.
The S&P 500 slumped 1.8% on Monday and Tuesday, thanks to China Evergrande, the Chinese property company that looks like it is ready to default on its more-than $300 billion in debt. Cries of the next Lehman Brothers—or maybe the next Silverado?—echoed through the canyons of Wall Street as investors prepared for the worst.
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