SlideShare a Scribd company logo
1 of 1
各種メタデータの特徴を考慮した
未知レシピへのメタデータ自動付与方式
DEIM2015 C1-3
背景
レシピ推薦サービスにおいて,高精度に推薦アイテムの選定を行うためには,
各レシピデータを分析し,適切なメタデータを付与することが考えられる.
先行研究の「類似度分析に基づく未知レシピへのメタ
データ自動付与方式の提案」(DEIM2014 Section:P2-3)
では,メタデータ自動付与方式の妥当性を示すことが
できたが,各軸の特徴量を考慮しておらず,類似度算
出精度の向上に限界がある.
あっさり
こってり
定番
お手軽
安い
メタデータが付与されていると、
推薦精度が向上する。
メタデータありレシピ
森下らの開発した,ユーザの気分でレシピを推薦するシステム
「気分で料理がポン!」で利用された,人の手によって
メタデータが付与されているレシピ(マスターレシピ)を使用する.
付与されているメタデータ
からだ:
こころ:
味:
時間:
お金:
アレンジ:
お疲れ(-5)
シクシク(-5)
あっさり(-5)
お手軽(-5)
安く(-5)
定番(-5)
〜
〜
〜
〜
〜
〜
(+5)元気
(+5)ウキウキ
(+5)こってり
(+5)本格
(+5)豪華に
(+5)アレンジ
しかし,「こころ」は他のメタデータと類似している部分が
多くあったため,相関を算出してみると,
特に「味」との相関が高いことがわかった.
よって「こころ」は「味」の中に統合することにする.
各メタデータの相関
こころと味 0.95
こころとからだ 0.81
味とからだ 0.76
こころとお金 0.71
・
・
・
・
・
・
提案手法
U(i) = S1 + S2 + S3 + S4 + S5
S1*M1(i) + S2*M2(i) + S3*M3(i) + S4*M4(i) + S5*M5(i)
Mrank(i):マスターレシピの各気分データ(rank=1位,2位,……)
Sm:対象未知レシピと類似度順位がm番のマスターレシピとの類似度
i:{からだ,ココロ,味,時間,お金,アレンジ}
マスターレシピの類似度の上位5件のメタデータに
類似度を考慮した重みを加えたものを平均して付与する.
1位
2位
3位
4位
5位
類似度の高い
メタデータ付きレシピ
未知レシピ
各レシピのメタデータに
類似度を考慮した重み
を加えたものを付与
各種メタデータの特徴を
考慮した未知レシピへの
メタデータ自動付与方式の提案
あっさり
メタデータなしレシピ
「あっさり」レシピが
なかなか見つからない
メタデータの種類
U(i):未知レシピ
本研究の目的
味
メタデータが付与されているレシピの,
あっさり度の高い物数件と,こってり度の高い物数件の
特徴語を特徴ベクトルの次元とする.
あっさり度の高いレシピ こってり度の高いレシピ
それぞれの特徴語をベクトルの次元へ
メタデータが付与されているレシピの,
お疲れ度の高い物数件と,元気度の高い物数件の
特徴語を特徴ベクトルの次元とする.
お疲れ度の高いレシピ 元気度の高いレシピ
それぞれの特徴語をベクトルの次元へ
時間
調理動作辞書を作成し,時間を算出する.
切る
時間がかかる
蒸す
時間がかからない お手軽度に重み
を置く
本格度に重み
を置く
ただし,「切る」が何度も出現した場合でも,
時間がかかるため,動詞の出現回数も考慮する必要が
あると考える.
材料毎の平均値段表を作成し,1食あたりの値段を
算出する.算出された金額を-5〜5に正規化する.
さんま:125円/1匹
例:秋刀魚の塩焼き
大根:148円/1本 塩:98円/1ビン
合計した値段を,メタデータ付与済みレシピの値段の
ヒストグラムに当てはめ,そこから-5〜+5の値に正規化
して,出力する.
同名のレシピ数件から,
動詞と名詞を抽出し,それぞれに
頻出する語を「定番」のベクトルと
する.
Edit Distanceに基づいて,
アレンジ度を算出し,
-5〜5の値に正規化して,出力する
からだ
お金アレンジ
各5つのメタデータに対して,それぞ
れの特徴を考慮するために,それ
ぞれの軸の特徴ベクトルの抽出を
行う.
類似度順位1〜5件にそれぞれの特
徴ベクトルを用いて,類似度順位5
件のマスターレシピのメタデータに
類似度を考慮した重みを加えたも
のを平均し,付与することにする.
①各種メタデータの特徴を考慮した特徴抽出
②メタデータの自動付与 未知レシピ
マスターレシピDB
システム
概要図
①入力
メタデータ付与済
みレシピDB
④DBに格納
②各軸の特徴を考慮した
特徴ベクトルの算出
③メタデータ自動付与
メタデータ自動付与システム

More Related Content

Featured

2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by HubspotMarius Sescu
 
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTEverything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTExpeed Software
 
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024Neil Kimberley
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)contently
 
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
 

Featured (20)

2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot
 
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTEverything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPT
 
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
 
Skeleton Culture Code
Skeleton Culture CodeSkeleton Culture Code
Skeleton Culture Code
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
 
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...
 

Deim2015 poster