ASIS&T Panel: Search Results VisualizationASIS&T Panel: Search Results Visualization

Collective IntelligenceCollective Intelligence & Holistic Sense MakingHolistic Sense MakingChaomei Chen, Drexel University

November 6, 2006. Austin, TX

Parts > Whole

Collective Intelligence An emergent property of a

society, a community, an invisible college, …

Collective Intelligence emerges from the collaboration

and competition of many individuals, an intelligence that

seemingly has a mind of its own.

http://cluster.cis.drexel.edu/~cchen/talks/asist2006/BSE_CJD_1981-2001_transp.exe

http://cluster.cis.drexel.edu/~cchen/talks/asist2006/citation_land_local.avi

Less is More!

Making Sense of Collective Intelligence

1. What are the hot topics in a subject area?

2. How are these hot topics related?

3. How do these topics evolve over time, space, and how do they spread across the structure of collective intelligence?

4. How do we access the emergent insights?

Topic: TerrorismTime span: 1996-2003

1.1. What is the most active topic in the What is the most active topic in the area of area of TERRORISM RESEARCHTERRORISM RESEARCH??

2.2. What was the previously What was the previously predominant topic?predominant topic?

3.3. What What EVENT/WORKEVENT/WORK led to the shift led to the shift of focus?of focus?

4.4. What is such a transition path What is such a transition path made of?made of?

Q1: Current hot Q1: Current hot topic?topic?

Q2: Previous Q2: Previous hot topic?hot topic?

Q3: Turning Q3: Turning point?point?

Q4: Transition Q4: Transition path?path?

before after

Q1: Current Q1: Current hot topic?hot topic?

Q2: Previous Q2: Previous hot topic?hot topic?

Q3: Turning Q3: Turning point?point?

Q4: Transition Q4: Transition path?path?

27 Biological Warfare

17 Violence

14 BioterrorismN=93

N=45

11 Stress Disorders, Post-Traumatic/*epidemiology

9 Terrorism/*psychology

8 Disasters

N=31

11 Explosions

7 Violence

4 Blast Injuries/*mortality

Geospatial patterns of terrorist eventsGeospatial patterns of terrorist events

Geospatial patterns of relevant researchGeospatial patterns of relevant research

Galea, S. et al. (2002)How does the citations to this paper spread geographically?

Note: You need to have Google Earth installed on your computer.

The Impact of a Pivotal PointThe Impact of a Pivotal Point

Citers to Galea et al. (2002)Citers to Galea et al. (2002)

Differentiating Conflicting Views

Amazon Customer Reviews1,738 positive reviews (=4, 5)918 negative reviews (=1, 2)

Positive Reviews

Negative Reviews

What does really good book mean exactly?

A negative orientation of good thriller writing

Selecting the Most Differentiating TermsClassification accuracy based on 10-fold cross-

validation:

C4.5 << NaiveBayes << SVM

3,068 Customer 3,068 Customer ReviewsReviews

The Da Vinci Code (Amazon Sales Rank: #7)

The Tipping Point (Amazon Sales Rank: #12)

596 Customer 596 Customer ReviewsReviews

Video iPod Video iPod (accuracy 91.49%)(accuracy 91.49%)

Amazon.com Sales Rank: #12 in Electronics

686 Customer 686 Customer ReviewsReviews

Old

New

NewOldOldOld New

2001 2002 2003 20042004 20052005

OldOld

OldOld

NewNew

NewNewNewNew

Emergent themes over time on terrorism (2001-2005) A decision tree derived from 3,944 abstracts

NewNewOldOld

Retrieval vs. Visual Analytics

• Retrieval– Recall– Discrete Search– Part– Formal– …

• Visual Analytics– Recognition– Continuous Foraging– Whole– Intuitive– …

Email: chaomei.chen@cis.drexel.edu

Web: http://www.pages.drexel.edu/~cc345