Bing Dialog Model:

Intent, Knowledge, and User Interaction

Harry Shum, PhD

Corporate Vice President

Microsoft Corporation

www.bing.com

The Journey to Bing

Our challenges at the launch of Bing

Oct

2007

Jan

2008

July

2008

April

2008

Oct

2008

Jan

2009

July

2009

April

2009

10%

20%

30%

40%

50%

60%

70%

Oct

2006

Jan

2007

July

2007

April

2007

Oct

2005

Jan

2006

July

2006

April

2006

http://searchengineland.com/tough-love-for-microsoft-search-15968

+4.00%

+1.57%

-4.03%

Growing Momentum since the launch of BingBut … Still a Long Way to Go

There are three elements of Search Quality

Simplified tasks

meaningconcepts

task completion

Their semantic impacts on Search Quality

Source: Google vs. Bing: the Fallacy of the Superior Search Engine – searchengineland.com

Yu-Ting Kuo

Principal Program Manager

www.bing.com

Internet searchers are becoming more Task Centric

Satisfaction

FrequencyImportance

And their tasks are More Sophisticated then ever

67%

33%

36%

64%

The traditional 10 Blue Links style is no longer sufficient

The emerging need for organized Whole Page experience

A Search Paradigm Shift is Happening

Bing Dialog Model

+

-

Previous

Inferences

(

Inferred

Intent (

Inferred

Intent ( )

Inferred

Action (

User Behavior ( )

A Stateful Feedback System

Using BMR Framework

Bing Dialog Model Implementation

Query-

level

Dialog

Session-level

Dialog

Page-level

Dialog

Document-

level dialog

It = argmaxI P( I | Ut , It-1 ; K)

At = argminA E[Cost(A, It)]

When applied to Autosuggest:

Ut is key stroke

It is closest intent queries

At is list of suggested queries

Cost() is selection efforts

Simple & Explicit Query-Level Dialog

Document-Level Dialog

Deep Links

Caption

Additional Caption Preview

Title

Page Time

Stamp

URL

Estimated Publish Time

Quick Tabs for

relevant Bing

Verticals, Domains, Answers

All Bing Vertical Services

Algorithmic Search Results

Query Suggestion

Search History

Entity-based result

summary

Sponsored Ads

History-

aware

Compare

Bing: The Decision Engine

Thank you