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Update 2020-08-17-costom.md
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_posts/2020-08-17-costom.md

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title: Writing a New Post
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title:
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author: Steven
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date: 2019-08-08 14:10:00 +0800
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categories: [Tutorial]
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tags: [writing]
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date: 2020-08-17 14:15:47 +0800
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categories: [Data Science]
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tags: [Study]
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1. Data Crapping
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2.
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## Data recognition
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1. Anormaly Detection
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- 정의 : Anomaly detection 은 데이터의 이상치를 탐지하는 내용이다.
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- 방법 :
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1. k-means or KNN 방식을 사용한다.
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2. 데이터가 normal 정규분포를 따른다고 가정할 때, 데이터의 centeroid 를 계산한다.

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