책 읽는 개발자

I woke up early and I went to the company by the shuttle bus. I dropped by the hospital in the coompany because my nail and hand have a problem. The doctor told me his guess, but he seemed he doesn't know exactly. So, after work, I will go to the hospital that treats skin poblem. Anyhow I had a meal at the restaurant in the company. Now I have to work. [SAVERS] silience - thinking nothing while ..

I woke up around 6:50 AM. Even though I got up not early, I could take the shuttle bus that goes to the company. Last night, I got the English conversation class. Actually I know that there is limitation to speak English well. But I just do my best every day just like a exercise. Today, I want to relax and be comfortable for myself. I think it is better than getting stress. Anyhow, I am having a..

딥러닝에서 학습 시 가중치 parameter의 최적화에 사용되는 최적화 기법에 대해 정리합니다. SGD Definition 매개변수의 기울기를 구해, 기울어진 방향으로 매개변수 값을 갱신하는 일을 반복해서 최적의 값을 찾는 것. 최소값인 (0,0) 까지 지그재그로 이동하니 비효율적. Formula \(W \leftarrow W - \eta \frac{\partial L }{\partial W}\) parameters W : 갱신할 가중치 매개변수 \(\frac{\partial L }{\partial W}\) : W에 대한 손실 함수의 기울기 \(\eta\) : 학습률 Momentum Definition 기울기 방향으로 힘을 받아 물체가 가속되듯이 매개변수 값을 갱신하는 방법 SGD와 비교하면 지그재그 정..

I got up early in the mornig today. So I could go to the company by the shuttle bus. Acutally, the shuttle bus stop is very close to my house. So It takes 5 minutes if I get the elevator quickly and run. But It is always difficult to wake up in the morning. Last night, I got the level test with English conversation class. It took about 20 minutes. It was interesting. And I decided that I have to..

I woke up early and could go to the company by the shuttle bus. I couldn't sleep well today, so I am a little bit sleepy. However, the weekend is coming closer, so I have to cheer myself up. I read a book while having a meal, It was very impressive. This book is regarding a patient who had a disease called cancer. A writer is a doctor who cared of them. He told us their patients story. It was so..

I got up early in the morning . Oops the contents I wrote has been deleted. It seems that bluetooth keyboard error or tistory bug. I am so upset. Anyhow I went to the company by the shuttle bus and I an having a meal while blogging. I gonna talk about the difficulty about speaking English. Last night I talked with some naitive people online. I felt I have a long distance beetween them and me. Th..

I got up early, maybe around 6:50 AM. But I couldn't take the shuttle bus, because I took much time to get a elevator. So I couldn't get a bus stop in time. I went to the subway station on foot and took a subway to go to the company. There were so many people in the subway. So I worried about the infection of COVID-19. These days the spread of COVID-19 is not decreasing. Anyhow, I went to the co..

Today is Arbor day, but these days it seems nobody care about that and I care some plants every day, so I also don't care this day specially. I got up around 6:50 AM in the morning. I quickly took a shower and finished preparation to go out. I went to the company by the shuttle bus. Even though I got sleep last night early and took a sleep so much but I was sleepy while going to the company. Any..

leetcode.com/problems/valid-parentheses/submissions/ Valid Parentheses - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com Solution 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 char stack[10000]; int cnt = 0; void push(char c){ stack[cnt++..

programmers.co.kr/learn/courses/30/lessons/42747?language=java 코딩테스트 연습 - H-Index H-Index는 과학자의 생산성과 영향력을 나타내는 지표입니다. 어느 과학자의 H-Index를 나타내는 값인 h를 구하려고 합니다. 위키백과1에 따르면, H-Index는 다음과 같이 구합니다. 어떤 과학자가 발표 programmers.co.kr Solution 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 import java.util.Arrays; class Solution { public int solution(int[] citations) { int answer = 0; int len..