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An Interactive System for CO-Citation Visualization

An Interactive System for CO-Citation Visualization. Xia Lin Jan Buzydlowski Howard D. White Drexel University Philadelphia, PA, USA. Co-Citation. a method for measuring the common intellectual interest between a pair of documents Small & Griffith (in 70’s). Document 1. cites.

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An Interactive System for CO-Citation Visualization

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  1. An Interactive System forCO-Citation Visualization Xia Lin Jan Buzydlowski Howard D. White Drexel University Philadelphia, PA, USA

  2. Co-Citation • a method for measuring the common intellectual interest between a pair of documents • Small & Griffith (in 70’s) Document 1 cites Later documents A, B, C, … ? cites Document 2

  3. Author Co-Citation • Insights into the intellectual structure of science and scholarship through citations over time. • White & Griffith (in 80’s) Author 1 cites Authors A, B, C, … ? cites Author 2

  4. Author as an Icon • An author • represents a person; • represents a body of writings. • A group of related authors • comes to stand for a body of ideas • represents subject relationships of documents.

  5. A Map of Information Scientists

  6. Map Structures (Online retrieval) Retrieval User (IR theories) (Communication) (General) Citation Document (Bibliometrics)

  7. Data for Information Scientists Map • 120 highly cited authors in Information Science • Co-citation count of every pair of the 120 authors • A matrix of 120 by 120 of their co-citation counts, converted to Pearson r’s

  8. Data Collection • Labor-intensive process • Decided who are highest-cited authors in the field • Conducted thousands of DIALOG searches on paired authors • C(120, 2) =7140 searches • Processed data in a spreadsheet • White and McCain (JASIS, April 1998)

  9. New Interactive System • The challenges • To process data and generate the map instantly. • To provide interactive functions for the viewer to explore the map and the underlying data (with search engines). • To provide different maps (with different mapping algorithms).

  10. The Database • Institute for Scientific Information • Arts and Humanities Database (AHCI) • 1988 - 1997 • 1.26 million records • BRS search engines

  11. The Old Interface

  12. System Structure BRS Search Engines cgi Web Interface Java Applet Java Servlets Web Server Mapping Procedures

  13. The New Interface

  14. Authors co-cited most often with PLATO

  15. Kruskal, Joseph B.

  16. Kruskal, Clyde P.

  17. Future Development • Adding different maps • Pathfinders • Multidimensional scaling • Hierarchical clustering • Adding more interactions with search engines • Mining and exploration tools • Subject labels

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