recommender systems in e-commerce

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Recommender Recommender Systems Systems in E-Commerce in E-Commerce J. Ben Schafer, Joseph Konstan, John Riedl E-COMMERCR 99,Denver,Colorado 1999 ACM Presentation by 邱邱邱 1

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Page 1: Recommender Systems in E-Commerce

Recommender Recommender SystemsSystems

in E-Commercein E-Commerce

J. Ben Schafer, Joseph Konstan, John Riedl

E-COMMERCR 99,Denver,Colorado1999 ACM Presentation by 邱信淵

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Page 2: Recommender Systems in E-Commerce

OutlineOutline Introduction

Recommender System

Examples

Taxonomy of recommender

systems

E-Commerce Opportunities

Conclusion2

Page 3: Recommender Systems in E-Commerce

IntroductionIntroductionOld world of mass production

Standardized productsHomogeneous marketsLong product life and development cycles

Now Develop multiple products to meet the multiple needs of multiple customers

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Page 4: Recommender Systems in E-Commerce

A Little Problem

“information overload!”Customers have to process the amount of information before to select what them want.

One solution: recommender systems

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Page 5: Recommender Systems in E-Commerce

Enhance E-commerce sales in 3 Enhance E-commerce sales in 3 waysways

Browsers into Buyers Help customers find the products

Cross-sell Suggestion additional products

Loyalty Creating relationships

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Page 6: Recommender Systems in E-Commerce

Recommender System Recommender System ExamplesExamples

Amazon

CDNOW

eBay

Levis

Moviefinder.com

Reel.com6

Page 7: Recommender Systems in E-Commerce

Recommender System Recommender System ExamplesExamples

Amazon.com

CDNOW eBay Levis Reel.com Moviefinder.com

Customers who bought

Album advisor

Feedback profile

Style finder Movie matches

Match maker

Eyes My CDNOW Movie map We predict

Amazon.com delivers

Book matcher

Customer comments

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Page 8: Recommender Systems in E-Commerce

Taxonomy of Taxonomy of recommender systems --recommender systems --InterfaceInterface

Browsing

Similar item

Email

Text comments

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Page 9: Recommender Systems in E-Commerce

Taxonomy of recommender Taxonomy of recommender systems --Interfacesystems --Interface

Average rating

Top-N

Ordered search result

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Page 10: Recommender Systems in E-Commerce

Recommender System Recommender System ExamplesExamples

Business/Application

Recommendation

Interface

Recommendation

Technology

FindingRecommendatio

ns

Amazon.comCustomers who Bought

Similar Item Item to Item CorrelationPurchase data

Organic Navigation

Eyes Email Attribute Based Keywords/freeform

Amazon.com Delivers

Email Attribute Based Selection options

Book Matcher Top N List People to People CorrelationLikert

Request List

Customer Comments

Average Rating Text Comments

Aggregated RatingLikertText

Organic Navigation

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Page 11: Recommender Systems in E-Commerce

Recommender System Recommender System ExamplesExamples

Business/Application

Recommendation

Interface

Recommendation Technology

FindingRecommenda

tions

CDNOWAlbum Advisor Similar Item

Top N ListItem to Item CorrelationPurchase data

Organic NavigationKeyword/freeform

My CDNOW Top N List People to People CorrelationLikert

Organic NavigationRequest List

eBayFeedback Profile Average

Rating Text Comments

Aggregated RatingLikertText

Organic Navigation

LevisStyle Finder Top N List People to People

CorrelationLikert

Request List

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Page 12: Recommender Systems in E-Commerce

Recommender System Recommender System ExamplesExamples

Business/Application

Recommendation

Interface

Recommendation Technology

FindingRecommendati

ons

Moviefinder.comMatch Maker Similar Item Item to Item

CorrelationEditor’s choice

Navigate to an item

We Predict Top N ListOrdered Search ResultsAverage Rating

People to People CorrelationAggregated RatingLikert

Keywords/freeformSelection optionsOrganic Navigation

Reel.comMovie Matches Similar Item Item to Item

CorrelationEditor’s choice

Organic Navigation

Movie Map Browsing Attributed BasedEditor’s choice

Keywords/freeform

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Page 13: Recommender Systems in E-Commerce

Taxonomy of Taxonomy of recommender systemsrecommender systems ----TechniquesTechniques

Non-Personalized

Attribute-Based

Item-to-Item Correlation

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Page 14: Recommender Systems in E-Commerce

Taxonomy of recommender Taxonomy of recommender systemssystems --Techniques--Techniques

People-to-People Correlation

User Input Purchase data Likert Text Editor’s choice

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Page 15: Recommender Systems in E-Commerce

Finding Finding RecommendationsRecommendations

Organic Navigation

Album Advisor, Movie Matches, Feedback

Profile

Request Recommendation List

Book matcher, Style Finder

Selection Options

Amazon.com Delivers

Keyword/Freeform

Eyes; Album Advisor; We Predict, Movie Map15

Page 16: Recommender Systems in E-Commerce

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Page 17: Recommender Systems in E-Commerce

E-Commerce E-Commerce OpportunitiesOpportunitiesCombine multiple types of data (algorithms)

Buy-side Sell-side

Shared Information

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Page 18: Recommender Systems in E-Commerce

ConclusionConclusion

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