The Impact of the ISI Convention of Relying on only the Name of the First Author on ACA Results: An Empirical Investigation

The Impact of the ISI Convention of Relying on only the Name of the First Author on ACA Results: An Empirical Investigation

Sean Eom (Southeast Missouri State University, USA)
DOI: 10.4018/978-1-59904-738-6.ch003
OnDemand PDF Download:
$37.50

Abstract

Virtually all ACA studies using Thomson’s ISI citation indexes used only the first author to retrieve the cocitation counts. Therefore, this has been a methodological issue in ACA study. First, this chapter introduces two classifications of author cocitations (Rousseau & Zuccala, 2004; Zhao, 2006). Second, literature survey of three studies is conducted to review what has been done to deal with this issue. Third, we discuss the data and cocitation matrix generation system used in our study. Fourth, using our data produced by the cocitation matrix generation system, principal component analysis and non-metric multi-dimensional scaling (MDS) are applied to compare the differences in the process and outcomes of using different cocitation matrices. Finally, we discussed the results of comparative analyses of our study and three other studies in this area. In doing so, the treatment of the diagonal values in a cocitation matrix, the number of authors in all author ACA and first author ACA are critical determinants of ACA outcomes such as number of factors, total percent of variance explained, goodness of fit, and so forth. In future research, it is imperative to use the same assumption in regard to the treatment of the diagonal values, the selection of authors using the same criterion, and so forth. If these are not uniformly standardized, the results are always incomparable and have less meaning. Three conclusions can be reached based on our study. First, all author-based ACA is better to capture all influential researchers in a field than first author-based ACA. It identifies more subspecialties. Finally, all author-based ACA and first author based ACA produce little differences in stress values.
Chapter Preview
Top

Classification Of Author Co-Citations By Rousseau And Zuccala

Author co-citation analysis analyzes the author cocitation frequency matrix to infer the intellectual structure of an academic discipline. However, the term author co-citation has not been fully defined. Because of imprecise definitions and restrictions of ISI databases, many ACA studies may have used various cocitation counts. This imprecise definition of author co-citation can lead to imprecise co-citation counts on the diagonal values as well as non-diagonal values.

Rousseau and Zuccala (2004) present a classification of author co-citation forms.

  • 1.

    Forms Pure first-author cocitations.

  • 2.

    Pure cocitations.

  • 3.

    General cocitations.

  • 4.

    Co-author/cociations.

Pure First-Author Cocitations

The pure first-author cocitation occurs when the reference list of a publication includes at minimum one publication with A as the first or single author and at minimum one publication with B as the first or single author, with one exception that all articles with these two authors (A and B) as co-authors are excluded in the process of computing co-citation frequency. The examples used here come from the reference list of (Sean B. Eom & Farris, 1996). Example A shows that there is one occurrence of cocitation between Eom and Farhoomand. Example B does NOT yield pure first- author cocitation between Smith and Thomas.

Example A

Eom, S. B. (1996). A Survey of Operational Expert Systems in Business (1980-1993). Interfaces, 26(5), 50-70.

Eom, S. B., Lee, S. M., & Kim, J. K. (1993). The Intellectual Structure of Decision Support Systems (1971-1989). Decision Support Systems, 10(1), 19-35.

Farhoomand, A. F. (1987). Scientific Progress of Management Information Systems. Data Base, 18(4), 48-56.

Example B taken from Rousseau and Zuccala

Smith, K. & Thomas, T. (1992) The k-procedure, The Gamma Journal.
Thomas, T. & Smith, K. (1992) More details about The k-procedure, The Gamma Journal.

Complete Chapter List

Search this Book:
Reset
Table of Contents
Acknowledgment
Sean B. Eom
Chapter 1
Sean Eom
Author cocitation analysis (ACA) is a branch of bibliometrics. Bibliometrics/informetrics is one of the older areas of library and information... Sample PDF
An Introduction to Bibliometrics and Informetrics
$37.50
Chapter 2
Sean Eom
This chapter introduces online citation data retrieval using the Web of Science and Dialog Classic. The Web of Science provides access to... Sample PDF
An Introduction to Online Data Retrieval and Issues
$37.50
Chapter 3
Sean Eom
Virtually all ACA studies using Thomson’s ISI citation indexes used only the first author to retrieve the cocitation counts. Therefore, this has... Sample PDF
The Impact of the ISI Convention of Relying on only the Name of the First Author on ACA Results: An Empirical Investigation
$37.50
Chapter 4
Diagonal Values in ACA  (pages 91-121)
Sean Eom
Diagonal values in the cocitation frequency counts matrix are a fundamental issue in ACA study. Diagonal values are the co-citation frequency counts... Sample PDF
Diagonal Values in ACA
$37.50
Chapter 5
The Fox-Base Approach  (pages 123-136)
Sean Eom
Chapter II introduced online cocitation counts retrieval using Dialog Classic and citation index files. Certainly Dialog Classic is an attractive... Sample PDF
The Fox-Base Approach
$37.50
Chapter 6
Sean Eom
This chapter shows another alternative approach of building citation database and retrieval system using the spreadsheet program, Microsoft Excel.... Sample PDF
Building Databases and the Cocitation Counts Generation System Using Microsoft Excel Program in Visual Basics
$37.50
Chapter 7
Sean Eom
The previous two chapters examined the two alternative approaches of retrieving cocitation counts using custom databases and cocitation frequency... Sample PDF
Overview of Author Cocitation Analysis Procedures
$37.50
Chapter 8
Sean Eom
This chapter describes the factor procedure. The first section of the chapter begins with the definition of factor analysis. This is the statistical... Sample PDF
Principal Component Analysis Using the Factor Procedure
$37.50
Chapter 9
Sean Eom
This chapter describes the distance and cluster procedure of the SAS system. SAS version 9 introduced the proc distance procedure. All previous... Sample PDF
The Distance and Cluster Procedure
$37.50
Chapter 10
Multidimensional Scaling  (pages 225-254)
Sean Eom
This chapter discusses multidimensional scaling (MDS) procedures. MDS is a class of multivariate statistical techniques/procedures to produce two or... Sample PDF
Multidimensional Scaling
$37.50
Chapter 11
Sean Eom
This chapter briefly introduces the use of SPSS version 15.0 to conduct ACA analysis. The SPSS accepts datafiles in many different formats including... Sample PDF
ACA Analysis with the 15.0.0 Verison of SPSS for Windows
$37.50
Chapter 12
Sean Eom
This is the capstone chapter that shows how the concepts, tools, and techniques discussed in each of the previous chapters can be applied in... Sample PDF
The Intellectual Structure of Decision Support Systems Research (1969-1989)
$37.50
Chapter 13
Sean Eom
This chapter extends an earlier benchmark study (Sean B. Eom, 1995) which examined the intellectual structure, major themes, and reference... Sample PDF
The Changing Structure of Decision Support Systems Research: An Empirical Investigation through Author Cocitation Mapping (1990-1999)
$37.50
About the Author