[앙상블] - 앙상블 방식 : 머신러닝 에서 알고리즘 종류에 상관없이 서로 다르거나, 같은 매커니즘으로 동작하는 다양한 머신러닝 모델을 묶어 함께 ㅅ용하는 방식 * 장점 : 예측 성능 안정적으로 제공, 쉽게 구현힐 수 있음 * 단점 : 다양한 모델을 사용하기 때문에 이 모델 자체로는 compact한 표현이 되기는 어려운 문제가 있음 - Bagging, Boosting *bagging : 학습과정에서 training sample을 랜덤하게 나누어 선택해 학습 *boosting : classifier순차적으로 적용, 이전 calssifier를 다음 분류기에서 보완하는 방식 - Model 평가 방법 1. accuracy : 정확도 2. confusion matrix : 각 경우에 대해 오차가 얼마나 있었는지 ..

110 According to our records, you are overdue for your annual checkup at Dr.Barell's office. 119 Weekday dining at Jake's Downtown Bistro is by reservation only due to the high volume of customers. -> 높은 수의 고객때문에 예약은 필수이다 126 Once orders are procesed by the sales office, they are filled within 48 hours - fill : 처리하다 130 Editors at Benchley Press are skilled at reading texts closely to correct er..

- a week~ 1. a week ago : 일주일 전에 2. a week away : 지금부터 일주일 떨어진 시점 3. a week later : 일주일 후에 4. a week in advanced : 일주일 사전에 5. a week before she comes 6. a week after the decision : 그 결정 일주일 후에 - the new restaurant gives a 10% discount to parties of more than 10.(party) : 정단 단체 - i got an accessary set comprising of rings and bracelets.(comprising vs comporised) - Mr. Kim explained how swiftly th..

22. I saw a stain on the carpet in room 29 -> It's time to replace it anyway 25 Who was in the break room last? (휴게실에 누가 마지막으로 있었냐) -> I noticed that it was messy, too (그러게,, 어질러 있었어..) 26. There's a sale on electronics tomorrow (내일 가전제품 할인 판매가 있다) -> I have had this computer for a long time (나는 이컴터 오래썻어,, 바꿀떄야..) ->(오답) : Yes, the electricity bill was really low - electricity bill : 전기요금 94 - W..

- As a result of the recent economic upturn, unemployment is on the decline as more and more businesses are hiring full-time employees *upturn : 위로 향함 - Rodgers Industrial celebrated the occasion of its 50th anniversary by hosting a banquet for clients from around the world - Ms.Herrera could not sit in an aisle seat during her international flight becasue there were none available *none availab..