the story of science maps
TRANSCRIPT
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The Story of Science Maps
Dr. Katy BörnerInformation Visualization Laboratory, Director
Cyberinfrastructure for Network Science Center, Director
School of Library and Information ScienceIndiana University, Bloomington, IN
Gel 2006, May 5th, 2006
The Problem:The Problem:
Being Lost in SpaceBeing Lost in Space
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15th Century: One person can make major contributions to many areas of science
Mankind’s Knowledge
Human Brainuse
contribute
Amount of knowledge on brain can mange
Leonardo Da Vinci (1452-1519)
20th Century: One person can make major contributions to a few areas of science
Albert Einstein(1879-1955 )
Mankind’s Knowledge
Human Brainuse
contribute
Amount of knowledge on brain can mange
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21th Century: One person can make major contributions to a specific area of science
Mankind’s Knowledge
Human Brainuse
contribute
Amount of knowledge on brain can mange
21th Century: One person can make major contributions to a specific area of science
Mankind’s Knowledge
Human Brainsuse
contribute
Amount of knowledge on brain can mange
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Humanity’s Knowledge
Domain ExpertManager
The Great Wave Off Kanagawa (Katsushika Hokusai, 1760-1849)
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A Solution:A Solution:
Science Maps Science Maps
Places & Spaces: Mapping Science a science exhibit that introduces people to maps of sciences, their makers and users.
Exhibit Curators:Dr. Katy Börner & Deborah MacPherson
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The Power of MapsThe Power of Maps
Four Early Maps of Our World Four Early Maps of Our World VERSUS VERSUS
Six Early Maps of ScienceSix Early Maps of Science
(1st Iteration of Places & Spaces Exhibit (1st Iteration of Places & Spaces Exhibit -- 2005)2005)
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How would a map of science look?
What metaphors would work best?
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The Power of Reference SystemsThe Power of Reference Systems
Four Existing Reference Systems Four Existing Reference Systems VERSUS VERSUS
Six Potential Reference Systems of ScienceSix Potential Reference Systems of Science
(2(2ndnd Iteration of Places & Spaces Exhibit Iteration of Places & Spaces Exhibit -- 2006)2006)
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How would a reference system for all of How would a reference system for all of science look?science look?
What dimensions would it have?What dimensions would it have?
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"Places & Spaces: Mapping Science""Places & Spaces: Mapping Science"on display at the NYPL Science, Industry, and Business Library on display at the NYPL Science, Industry, and Business Library
Madison/34th, New York CityMadison/34th, New York CityApril 3rd April 3rd -- August 31st, 2006.August 31st, 2006.
The Power of ForecastsThe Power of Forecasts
Four Existing Forecasts Four Existing Forecasts VERSUS VERSUS
Six Potential Science Six Potential Science ‘‘WeatherWeather’’ ForecastsForecasts
(3(3rdrd Iteration of Places & Spaces Exhibit Iteration of Places & Spaces Exhibit -- 2007)2007)
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http://www.scotese.com/
http://www.weather.gov
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Named Storms, available online at http://svs.gsfc.nasa.gov/vis/a000000/a003200/a003279
A Potential Future:A Potential Future:
Science Maps in Action Science Maps in Action
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KIDS first KIDS first ……
All maps of science are on sale via All maps of science are on sale via http://http://vw.indiana.edu/places&spacesvw.indiana.edu/places&spaces
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Activities:Solve the puzzle.Navigate to ‘Earth Science’. Identify major inventions.Place major inventors.Find your dream job on the map.Why is mathematics important?
…… my SPONSORS next my SPONSORS next ……
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Latest ‘Base Map’ of ScienceKevin W. Boyack & Richard Klavans, unpublished work.
Uses combined SCI/SSCI from 2002• 1.07M papers, 24.5M
references, 7,300 journals• Bibliographic coupling of
papers, aggregated to journals
Initial ordination and clustering of journals gave 671 clustersCoupling counts were reaggregated at the journal cluster level to calculate the • (x,y) positions for each
journal cluster• by association, (x,y)
positions for each journal
Policy
Economics
Statistics
Math
CompSci
Physics
Biology
GeoScience
Microbiology
BioChem
Brain
PsychiatryEnvironment
Vision
Virology Infectious Diseases
Cancer
Disease &Treatments
MRI
Bio-Materials
Law
Plant
Animal
Phys-Chem
Chemistry
Psychology
Education
Computer Tech
Science map applications: Identifying core competencyKevin W. Boyack & Richard Klavans, unpublished work.
Policy
Economics
Statistics
Math
CompSci
Physics
Biology
GeoScience
Microbiology
BioChem
Brain
PsychiatryEnvironment
Vision
Virology Infectious Diseases
Cancer
MRI
Bio-Materials
Law
Plant
Animal
Phys-Chem
Chemistry
Psychology
Education
Computer Tech
GI
Funding patterns of the US Department of Energy (DOE)
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Policy
Economics
Statistics
Math
CompSci
Physics
Biology
GeoScience
Microbiology
BioChem
Brain
PsychiatryEnvironment
Vision
Virology Infectious Diseases
Cancer
MRI
Bio-Materials
Law
Plant
Animal
Phys-Chem
Chemistry
Psychology
Education
Computer Tech
GI
Funding Patterns of the National Science Foundation (NSF)
Science map applications: Identifying core competencyKevin W. Boyack & Richard Klavans, unpublished work.
Policy
Economics
Statistics
Math
CompSci
Physics
Biology
GeoScience
Microbiology
BioChem
Brain
PsychiatryEnvironment
Vision
Virology Infectious Diseases
Cancer
MRI
Bio-Materials
Law
Plant
Animal
Phys-Chem
Chemistry
Psychology
Education
Computer Tech
GI
Funding Patterns of the National Institutes of Health (NIH)
Science map applications: Identifying core competencyKevin W. Boyack & Richard Klavans, unpublished work.
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…… then SCIENTISTS then SCIENTISTS ……
Mapping the Evolution of Co-Authorship Networks Ke, Visvanath & Börner, (2004) Won 1st price at the IEEE InfoVis Contest.
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…… and INDUSTRY too. and INDUSTRY too.
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Mapping Indiana’s Intellectual Space
IdentifyPockets of innovationPathways from ideas to productsInterplay of industry and academia
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Interested to get your own science map? Interested to get your own science map? Contact the map makers!Contact the map makers!
[email protected]@indiana.edu
The End.The End.
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How to Make a Science MapHow to Make a Science Map
Shiffrin, Richard M. and Börner, Katy (Eds.) (2004). Mapping Knowledge Domains. Proceedings of the National Academy of Sciences of the United States of America, 101(Suppl_1).
Börner, Katy, Chen, Chaomei, and Boyack, Kevin. (2003). Visualizing Knowledge Domains. In Blaise Cronin (Ed.), Annual Review of Information Science & Technology, Volume 37, Medford, NJ: Information Today, Inc./American Society for Information Science and Technology, chapter 5, pp. 179-255.
Comparison of Similarity Metrics
ISI file year 2000, SCI and SSCI: 7,121 journals.Different similarity metrics• Inter-citation (raw counts,
cosine, modified cosine, Jaccard, RF, Pearson)
• Co-citation (raw counts, cosine, modified cosine, Pearson)
Maps were compared based on • regional accuracy, • the scalability of the
similarity algorithm, and • the readability of the
layouts.
Boyack, Kevin W., Klavans, R. and Börner, Katy. (2005). Mapping the Backbone of Science. Scientometrics. 64(3), 351-374.
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For each similarity measure, the VxOrdlayout was subjected to k-means clustering using different numbers of clusters.Resulting cluster/category memberships were compared to actual category memberships using entropy/mutual information method by Gibbons & Roth, 2002.Increasing Z-score indicates increasing distance from a random solution.Most similarity measures are within several percent of each other.
Number of k-means clusters100 150 200 250
Z-sc
ore
280
300
320
340
360
380
400
IC RawIC CosineIC JaccardIC PearsonIC RFavgCC RawCC K50CC Pearson
Selecting the similarity measure with the best regional accuracy
Boyack, Kevin W., Klavans, R. and Börner, Katy. (2005). Mapping the Backbone of Science. Scientometrics. 64(3), 351-374.
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A ‘Backbone’ Map of Science & Social Science
The map is comprised of 7,121 journals from year 2000.Each dot is one journalAn IC-Jaccard similarity measure was used. Journals group by discipline.Groups are labeled by hand.Large font size labels identify major areas of science. Small labels denote the disciplinary topics of nearby large clusters of journals.
Comp Sci
PolySciLaw
LIS
Geogr
Hist
Econ
Sociol
Nursing
Educ
Comm
Psychol
Geront
Neurol
RadiolSport Sci
Oper Res
Math
Robot
AIStat
Psychol
Anthrop
Elect Eng
Physics
Mech Eng
ConstrMatSci
FuelsElectChemP Chem
Chemistry
AnalytChem
Astro
Env
Pharma
Neuro Sci
Chem Eng
Polymer
GeoSci
GeoSci
Paleo
Meteorol
EnvMarine
Social Sci
SoilPlant
Ecol
Agric
Earth Sciences
Psychol
OtoRh
HealthCare
BiomedRehab
Gen Med
GenetCardio
Ped
Food Sci
Zool
EntoVet Med
Parasit
Ophth
DairyEndocr
Ob/Gyn
Virol
Hemat
Oncol
Immun
BioChem
Nutr
Endocr
Urol
Dentist
Derm
Pathol
Gastro
SurgMedicine
ApplMath
Aerosp
CondMatNuc
EmergMed Gen/Org
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Comp Sci
PolySciLaw
LIS
Geogr
Hist
Econ
Sociol
Nursing
Educ
Comm
Psychol
Geront
Neurol
RadiolSport Sci
Oper Res
Math
Robot
AIStat
Psychol
Anthrop
Elect Eng
Physics
Mech Eng
ConstrMatSci
FuelsElectChemP Chem
Chemistry
AnalytChem
Astro
Env
Pharma
Neuro Sci
Chem Eng
Polymer
GeoSci
GeoSci
Paleo
Meteorol
EnvMarine
Social Sci
SoilPlant
Ecol
Agric
Earth Sciences
Psychol
OtoRh
HealthCare
BiomedRehab
Gen Med
GenetCardio
Ped
Food Sci
Zool
EntoVet Med
Parasit
Ophth
DairyEndocr
Ob/Gyn
Virol
Hemat
Oncol
Immun
BioChem
Nutr
Endocr
Urol
Dentist
Derm
Pathol
Gastro
SurgMedicine
ApplMath
Aerosp
CondMatNuc
EmergMed Gen/Org
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The 212 nodes represent clusters of journals for different disciplines. Nodes are labeled with their dominant ISI category name.Circle sizes (area) denote the number of journals in each cluster.Circle color depicts the independence of each cluster, with darker colors depicting greater independence.Lines denote strongest relationships between disciplines (citing cluster gives more than 7.5% of its total citations to the cited cluster).
Structural Map: Studying Disciplinary Diffusion
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Clusters of journals denote disciplines.Lines denote strongest relationships between journals
Zoom Into Structural Map
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SEI: Network Workbench: A Large-Scale Network Analysis, Modeling and Visualization Toolkit for Biomedical, Social Science and Physics Research. NSF IIS-0513650 award (Katy Börner, Albert-Laszlo Barabasi, Santiago Schnell, Alessandro Vespignani & Stanley Wasserman, Craig Stewart (Senior Personnel), $1,120,926) Sept. 05 - Aug. 08. http://nwb.slis.indiana.edu
CAREER: Visualizing Knowledge Domains. NSF IIS-0238261 award (Katy Börner, $440,000) Sept. 03-Aug. 08. http://iv.slis.indiana.edu/
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