008. [AWS] 머신러닝

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01. 머신러닝과 관련 서비스들

(01) 머신 러닝

머신 러닝은 인공지능의 일종으로 제공된 데이터로 부터 학습하는 시스템을 이야기 한다. 과거에 결과를 통해 점수를 내고 결과를 도출해 낸다.

(02) 머신러닝 서비스

  • AWS Kendra
    지능형 검색 서비스
  • AWS Personalize
    개인 맞춤형 추천 서비스
  • AWS SageMaker
    기계 학습 모델을 신속하게 배포할 수 있는 도구
    • 모델 데이터를 준비하고
    • 학습시키고 적용함
    • AMIS 를 적용한다.

(03) 비지니스 메트릭 머신러닝 서비스

  • Amazon Lookout for Metric
    예상치 못한 상황을 감치하는 서비스 ( 비지니스상(매출 / 수익 등) 여러 복잡한 문제에 대한 근본 원인 파악에 사용)
  • Amazon Forecast
    정확한 예측 모델을 구현하는데 사용하는 서비스
  • Amazon Fraud Detector
    잠재적인 온라인 이상활동을 식별하는 서비스

(04) 머신러닝 비전 관련 서비스

  • Amazon Rekognition
    이미지나 비디오를 분석해서 제공하는 서비스

(04) 언어 관련 서비스

  • Amazon Polly
    Text to Speech (텍스트를 읽어 주는 서비스)
  • Amazon Transcribe
    Speech to Text (대화를 텍스트로 변환해주는 서비스)
  • Amazon Lex
    대화형 챗봇을 쉽게 구축해주는 서비스
  • Amazon Comprehend
    자연어 서비스
    • 텍스트 관의 연관 관계를 검토하고 나타낸다.
    • 고객의 리뷰를 바탕으로 기준을 파악하고 활용할 수 있다.

02. Amazon Rekognition

01) 개념

(01) Amazon Rekognition 이란 ?

이미지를 제공하고, 어떤 이미지인지 분석해주는 서비스 이다.

  • 이미지를 주면, 어떤 사물을 나타내는지 비율을 기록할 수 있다.
    이를 통하면, 혐오감을 주는 사진이나 영상 등의 대해서 업로드 제한을 할 수 있다.
  • 이미지의 텍스트를 인식하여, 텍스트를 기록할 수 있다.

(02) Deep Racer

AWS 에 영상 분석 기술을 활용하여, Deep Racer 를 구성할 수 있다.

위와같은 코드로 트랙을 벗어나는 경우 리워드를 낮게 주어, 학습 시키고 트랙을 따라가도록 레이스를 수행할 수 있다.
(실제로 AWS 에서는 이를 활용한 경주대회도 있다. )

02) 기본 실습

02. CodeGuru

01) 개념

(01) CodeGuru 란 ?

개발자 그룹에서는 코드리뷰를 자주 진행하고는 한다. 하지만, 시간적인 문제나 예상치 못하게 발경하지 못하는 문제등을 개선하기 위해, 코드 그루를 사용하면 실제 코드의 성능과 문제가 되는 부분들을 확인시켜 줄 수 있다.

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