SlideShare une entreprise Scribd logo
1  sur  10
Télécharger pour lire hors ligne
機械学習スキル向上のため
Kaggleにチャレンジしてみた
Kaggleとは
・企業等が課題解決に用いる機械学習等のモデルを公募しているホームペー
ジ(モデルコンペサイト)
・Kaggleアカウントがあれば、誰でも無料で参加可能
・参加者同士でモデルの精度を競い合い、順位が発表される
・優勝者には賞金が支払われるコンペもある
・サイト内には参加者同士で意見交換できる場も設けられている
挑戦したコンペ
・初心者向けの入門コンペ。
・1912年に起きた豪華客船タイタニック号沈没がテーマ。
・乗客の属性、生死の結果等の訓練データが与えられる。
・どのような人物が生き残る可能性が高いのかを分析し、
生死の結果を予測するモデルを作成する。
PassengerId Survived Pclass Name Sex Age SibSp Parch Ticket Fare Cabin
1 0 3 Braund, Mr. Owen Harris male 22 1 0 A/5 21171 7.25
2 1 1 Cumings, Mrs. John Bradley (Florence Briggs Thayer)female 38 1 0 PC 17599 71.2833 C85
3 1 3 Heikkinen, Miss. Laina female 26 0 0 STON/O2. 31012827.925
4 1 1 Futrelle, Mrs. Jacques Heath (Lily May Peel)female 35 1 0 113803 53.1 C123
5 0 3 Allen, Mr. William Henry male 35 0 0 373450 8.05
訓練データ(抜粋)
さぁ挑戦だ!①
訓練データの前処理(機械が読めるデータ、高精度モデルを作れるデータに変
換)が苦労した。。
訓練データ
SVM
(機械学習アルゴ
リズム)
生死判定
モデル
生死判定
モデル
テストデータ 生死判定結果
提出!
Kaggleより提供
Kaggleより提供
Sklearn・Numpyを使用
さぁ挑戦だ!②
<データ前処理>Pandas・seaborn・matplotlibを使用
・カラム毎に欠損値の有無を確認
(欠損値をカラムの中央値で埋める、欠損値が大多数のカラムは削除)
・機械が読めるデータ形式に変換(文字列→数値)
・データ間の相関性の確認
⇒相関が強いデータが複数個ある場合、説明変数を1種類に絞りこむ
当該データを全て説明変数にすると、モデルの精度低下を引き起こすため
等々、
訓練データの前処理⇒モデル作成⇒モデル精度確認のサイクルを繰り返した。
PassengerId Survived Pclass Name Sex Age SibSp Parch Ticket Fare Cabin
1 0 3 Braund, Mr. Owen Harris male 22 1 0 A/5 21171 7.25
2 1 1 Cumings, Mrs. John Bradley (Florence Briggs Thayer)female 38 1 0 PC 17599 71.2833 C85
3 1 3 Heikkinen, Miss. Laina female 26 0 0 STON/O2. 31012827.925
4 1 1 Futrelle, Mrs. Jacques Heath (Lily May Peel)female 35 1 0 113803 53.1 C123
5 0 3 Allen, Mr. William Henry male 35 0 0 373450 8.05
訓練データ(抜粋)
成績は…13,000人中10,931位でした
上位成績者のコメント
丁寧な前処理・試行錯誤(何度も傾向分析・モデル作成)
を粘り強く行う
・無暗に列・行を捨てない(有効な特徴を消さない)
・空白を埋める際の方針決定(最頻値、条件分岐)
・カラムの統合(ParchとSibを足し算など)
等々
再度挑戦!…593位に
まとめ
・機械学習スキル向上には、色々な人の意見を取り入れ、実戦することが大
切だと思った。
・今後も経験を積み、知識を深めていきたいと思うこの頃。(もっと自分の
時間が欲しい。。)
ご清聴頂きありがとうございました!

Contenu connexe

Dernier

Postman LT Fukuoka_Quick Prototype_By Daniel
Postman LT Fukuoka_Quick Prototype_By DanielPostman LT Fukuoka_Quick Prototype_By Daniel
Postman LT Fukuoka_Quick Prototype_By Danieldanielhu54
 
TSAL operation mechanism and circuit diagram.pdf
TSAL operation mechanism and circuit diagram.pdfTSAL operation mechanism and circuit diagram.pdf
TSAL operation mechanism and circuit diagram.pdftaisei2219
 
論文紹介:Semantic segmentation using Vision Transformers: A survey
論文紹介:Semantic segmentation using Vision Transformers: A survey論文紹介:Semantic segmentation using Vision Transformers: A survey
論文紹介:Semantic segmentation using Vision Transformers: A surveyToru Tamaki
 
論文紹介:Automated Classification of Model Errors on ImageNet
論文紹介:Automated Classification of Model Errors on ImageNet論文紹介:Automated Classification of Model Errors on ImageNet
論文紹介:Automated Classification of Model Errors on ImageNetToru Tamaki
 
[DevOpsDays Tokyo 2024] 〜デジタルとアナログのはざまに〜 スマートビルディング爆速開発を支える 自動化テスト戦略
[DevOpsDays Tokyo 2024] 〜デジタルとアナログのはざまに〜 スマートビルディング爆速開発を支える 自動化テスト戦略[DevOpsDays Tokyo 2024] 〜デジタルとアナログのはざまに〜 スマートビルディング爆速開発を支える 自動化テスト戦略
[DevOpsDays Tokyo 2024] 〜デジタルとアナログのはざまに〜 スマートビルディング爆速開発を支える 自動化テスト戦略Ryo Sasaki
 
スマートフォンを用いた新生児あやし動作の教示システム
スマートフォンを用いた新生児あやし動作の教示システムスマートフォンを用いた新生児あやし動作の教示システム
スマートフォンを用いた新生児あやし動作の教示システムsugiuralab
 
論文紹介:Content-Aware Token Sharing for Efficient Semantic Segmentation With Vis...
論文紹介:Content-Aware Token Sharing for Efficient Semantic Segmentation With Vis...論文紹介:Content-Aware Token Sharing for Efficient Semantic Segmentation With Vis...
論文紹介:Content-Aware Token Sharing for Efficient Semantic Segmentation With Vis...Toru Tamaki
 
Open Source UN-Conference 2024 Kawagoe - 独自OS「DaisyOS GB」の紹介
Open Source UN-Conference 2024 Kawagoe - 独自OS「DaisyOS GB」の紹介Open Source UN-Conference 2024 Kawagoe - 独自OS「DaisyOS GB」の紹介
Open Source UN-Conference 2024 Kawagoe - 独自OS「DaisyOS GB」の紹介Yuma Ohgami
 
SOPを理解する 2024/04/19 の勉強会で発表されたものです
SOPを理解する       2024/04/19 の勉強会で発表されたものですSOPを理解する       2024/04/19 の勉強会で発表されたものです
SOPを理解する 2024/04/19 の勉強会で発表されたものですiPride Co., Ltd.
 

Dernier (9)

Postman LT Fukuoka_Quick Prototype_By Daniel
Postman LT Fukuoka_Quick Prototype_By DanielPostman LT Fukuoka_Quick Prototype_By Daniel
Postman LT Fukuoka_Quick Prototype_By Daniel
 
TSAL operation mechanism and circuit diagram.pdf
TSAL operation mechanism and circuit diagram.pdfTSAL operation mechanism and circuit diagram.pdf
TSAL operation mechanism and circuit diagram.pdf
 
論文紹介:Semantic segmentation using Vision Transformers: A survey
論文紹介:Semantic segmentation using Vision Transformers: A survey論文紹介:Semantic segmentation using Vision Transformers: A survey
論文紹介:Semantic segmentation using Vision Transformers: A survey
 
論文紹介:Automated Classification of Model Errors on ImageNet
論文紹介:Automated Classification of Model Errors on ImageNet論文紹介:Automated Classification of Model Errors on ImageNet
論文紹介:Automated Classification of Model Errors on ImageNet
 
[DevOpsDays Tokyo 2024] 〜デジタルとアナログのはざまに〜 スマートビルディング爆速開発を支える 自動化テスト戦略
[DevOpsDays Tokyo 2024] 〜デジタルとアナログのはざまに〜 スマートビルディング爆速開発を支える 自動化テスト戦略[DevOpsDays Tokyo 2024] 〜デジタルとアナログのはざまに〜 スマートビルディング爆速開発を支える 自動化テスト戦略
[DevOpsDays Tokyo 2024] 〜デジタルとアナログのはざまに〜 スマートビルディング爆速開発を支える 自動化テスト戦略
 
スマートフォンを用いた新生児あやし動作の教示システム
スマートフォンを用いた新生児あやし動作の教示システムスマートフォンを用いた新生児あやし動作の教示システム
スマートフォンを用いた新生児あやし動作の教示システム
 
論文紹介:Content-Aware Token Sharing for Efficient Semantic Segmentation With Vis...
論文紹介:Content-Aware Token Sharing for Efficient Semantic Segmentation With Vis...論文紹介:Content-Aware Token Sharing for Efficient Semantic Segmentation With Vis...
論文紹介:Content-Aware Token Sharing for Efficient Semantic Segmentation With Vis...
 
Open Source UN-Conference 2024 Kawagoe - 独自OS「DaisyOS GB」の紹介
Open Source UN-Conference 2024 Kawagoe - 独自OS「DaisyOS GB」の紹介Open Source UN-Conference 2024 Kawagoe - 独自OS「DaisyOS GB」の紹介
Open Source UN-Conference 2024 Kawagoe - 独自OS「DaisyOS GB」の紹介
 
SOPを理解する 2024/04/19 の勉強会で発表されたものです
SOPを理解する       2024/04/19 の勉強会で発表されたものですSOPを理解する       2024/04/19 の勉強会で発表されたものです
SOPを理解する 2024/04/19 の勉強会で発表されたものです
 

En vedette

How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024Albert Qian
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsKurio // The Social Media Age(ncy)
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summarySpeakerHub
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next Tessa Mero
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentLily Ray
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best PracticesVit Horky
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project managementMindGenius
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...RachelPearson36
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Applitools
 
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at WorkGetSmarter
 
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...DevGAMM Conference
 
Barbie - Brand Strategy Presentation
Barbie - Brand Strategy PresentationBarbie - Brand Strategy Presentation
Barbie - Brand Strategy PresentationErica Santiago
 
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them wellGood Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them wellSaba Software
 
Introduction to C Programming Language
Introduction to C Programming LanguageIntroduction to C Programming Language
Introduction to C Programming LanguageSimplilearn
 

En vedette (20)

How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
 
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
 
ChatGPT webinar slides
ChatGPT webinar slidesChatGPT webinar slides
ChatGPT webinar slides
 
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike RoutesMore than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
 
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
 
Barbie - Brand Strategy Presentation
Barbie - Brand Strategy PresentationBarbie - Brand Strategy Presentation
Barbie - Brand Strategy Presentation
 
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them wellGood Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
 
Introduction to C Programming Language
Introduction to C Programming LanguageIntroduction to C Programming Language
Introduction to C Programming Language
 

Slide