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| Level 1 : Lecture Note 에 있는 주요 개념을 설명할 수 있으며 예제 코드를 이해하고 재현할 수 있습니다. | |
| 신경망이 학습되는 메커니즘(순전파, 손실 계산, 역전파)에 대해 적절한 비유를 들어 설명할 수 있습니다. | |
| 1) 순전파 (Forward Propagation) | |
| - 입력층 -> 은닉층의 연산(가중치-편향(가중합) 연산 + 활성화 함수) -> 출력층으로 값을 내보내는 과정 | |
| 2) 손실 계산 (Loss Function) | |
| - 출력값 + 데이터의 타겟값을 손실 함수에 넣어 손실(loss or error)를 계산 | |
| - MSE(Mean-squared error) CEE(Cross-entropy error) |
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| WRAP-UP | |
| 딥러닝: 하드웨어 상향(메모리, gpu) 빅데이터, 알고리즘 향상 | |
| PERCEPTRON: | |
| - an algorithm for supervised learning of binary classifiers | |
| - a type of linear classifier | |
| - 인간 뇌를 흉내내는 인공신경망 + 다양한 머신러닝 알고리즘 | |
| - 뉴런: 인간이 수행하는 생각하고 배우고 창조하고 기억하고 느끼고 아파하는 일에 관여함 | |
| - 하나에 샘플이 어떤 클래스에 속해있는지 예측하는데 사용!!! |
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| def flatten_and_sort(array) | |
| array.flatten.sort | |
| end |
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| 1. In your Company Database, add a table named:departments | |
| Select * from departments; | |
| +---------------+-------------------+------------------+ | |
| | depart_name | employee_number | departments_id | | |
| |---------------+-------------------+------------------| | |
| | sales | 10 | 1 | | |
| | logistics | 50 | 2 | | |
| | HR | 37 | 3 | | |
| +---------------+-------------------+------------------+ |
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| #1. we remember a is 1 | |
| #2. we remember b is 100 | |
| #3. we remember z is _____ (guess) | |
| #4. we tell the user we are going to guess a number between "a" and "b" | |
| #5. user chooses number | |
| #6. we remember our guess is (a+b)/2 | |
| #7. tell the user that we are guessing the number "guess" | |
| #8. user chooses yes/no | |
| #9. If user chooses yes | |
| #then say we got it in z guesses |
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| 1. Create a database: createdb company_database | |
| 2. Create a table: psql company_database | |
| 3. Add the following columns to the table, Use your best judgement for data types | |
| Ruby | |
| id (Primary Key) | |
| full_name | |
| salary | |
| position |
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| var Kata; | |
| Kata = (function() { | |
| function Kata() {} | |
| Kata.getVolumeOfCuboid = function(length, width, height) | |
| {return length * width * height}; | |
| return Kata; |