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Rakuten Technology Conference 2013 "Our Goals and Activities at Rakuten Institute of Technology" Satoshi Sekine (Rakuten)
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Our Goals and Activities at Rakuten Institute of TechnologyOctober/26/2013Satoshi SekineRakuten Institute of TechnologyRakuten Inc.
2
Our goal
How was the carrot you got
yesterday?
Today this fresh lettuce
is good
Recommendation
You will take a
vacation?The travel agent over there gives
good service
Affiliation
You are on diet, but
like sweet food? This sweet
tomato is good for
your health
Personalization
Old-fashioned
shop owner
3
Our goal
You want to know
the vegetable
in this photo…
It is an artichoke.
Image recognition
You can boil it and eat it
with mayonnaise
World knowledge
Recently, it is very popular among young
people
Opinion mining
Old-fashioned
shop owner
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Create happy shopping experiences
Hints from a legendary & successful real market
Understand language
Master his products
Understand the customers
World Knowledge
Recognize image, video
Remember for the future
Manipulate knowledge
Think, inference, analysis
Situation adaptation
Friendly service
NLP
Multi-media
Big Data
Semantic
Big Data
I/F
Artificial Intelligence
Infrastructure
5
Research Topics
1. Rakuten Hub Category2. Category Correction3. Surf Shopping
6
Research Topics
1. Rakuten Hub Category2. Category Correction3. Surf Shopping
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Different Category Structures of Rakuten Marketplaces
8
Hub and Spoke Model
HUB
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Global vs. Local
Problem: Culture/Market dependencyWe need one uniform DB structure = Global Catalog
Organize globally Adapt Locally
Sports Equipment
PelotaBaseball
10
Overview
attribute value
Product information by Attributes and values
Product types
Product category for display is decided by “product types” and a set of attribute values
Mapping
R-HC Local Hierarchy
11
Definition of Global Category
135 top categoriesCulture/country independent
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Definition of Attribute (bag)
Set of attributes for each category
13
Mapping Tool
Specify a category of a marketplace,
and show the corresponding category
of all the Rakuten marketplace
14
Research Topics
1. Rakuten Hub Category2. Category Correction3. Surf Shopping
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2. Category Correction
Muffler
SakeNOISE!
Muffler
Muffler
Users are annoyed, Merchants are in trouble → Detecting the misplaced products → Reassigning them into the right genres
Many products are assigned into a wrong category
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Bottle720mlJapan
DeliciousTengumailight
Japanese Sake
TengumaiNote:“Tengumai” is a famous Japanese sake (rice wine)
The words, which are assigned into only one category automatically
dictionary
Definitive Category Words (DCW)
Technology (Modified TF/IDF strategy)
17
Business Contributions
0
10
20
30
40
Jul. Aug. Sep. Oct. Nov.
GMS
0
10
20
30
40
Jul. Aug. Sep. Oct. Nov.
GMS
(1) 2 big merchants2 million products (2011/9)
FIX Merchant A FIX
2011 2011
(3) Expanding to more categories
(2) 2 categories, which include 1,000 merchants1 million products (2011/11)
Merchant B
→ Contributed to GMS
5 million products (2012/10)
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Research Topics
1. Rakuten Hub Category2. Category Correction3. Surf Shopping
19
Online Shopping Offline Shopping
Search-orientedGood for finding a specific item
Browsing-orientedGood for looking around
3. Surf Shopping
20
Motivation
Online Shopping Offline Shopping
Search-orientedGood for finding a specific item
Browsing-orientedGood for looking around
ConvenientFun! :-)
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Recommendation / Categories / Ranking
Convenient & Fun! :-)
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Associative Relations for SurfShopping
Cheese
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Cracker
Cheese
Wine
Associative Relations for SurfShopping
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Grape
Cheese cake
Pasta
Pizza
Grater
Cracker
SaladCheese knife
Cheese
Wine
Associative Relations for SurfShopping
25
Relation Discovery technology
Yet, your sommelier will suggest pairings, will explain to you why this cheese might work better
with that wine.
As our cheese varies from mild to full flavored, a number of wine
varieties may work…
Tips for Pairing White Wines With Cheese
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Our Goal
Technologies for
Happy Shopping
Experiences
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… and also please join us!
We are hiring andlooking for internship students
Tokyo New York
Please contact us at [email protected]