CIShell Manual : Extract Co-Author Network

Created by Aretha Alencar, last modified by David Coe on Apr 26, 2012
Menu path

Data Preparation > Database > ISI > Co-Author Network

Description

Extracts the co-authorship network from an ISI database.

Each author from each document in the input database is represented by a node. An edge is drawn between the nodes for two authors if and only if they co-authored a document in the input database.

Analysis

The output network will include the following summaries of your dataset:

  • Node (Author)
    • Number of documents authored in your dataset.
    • Total number of times cited. Note that this according to per-document citations in the global dataset as recorded by ISI and not according to citations contained only within your dataset.
    • Publication year of the earliest document.
    • Publication year of the most recent document.
  • Edge (Co-Authorship)
    • The number of works co-authored by the two connected authors.
      • This figure is also given with three common normalizations: Jaccard, cosine, and Dice.
    • Publication year of the earliest collaboration.
    • Publication year of the most recent collaboration.
Usage Hints

Load an ISI file into the tool, then create a database from it using the ISI database loader.

For a quick analysis of a small dataset you may wish to merge together author entities with identical names. For a scientifically sound analysis of a larger dataset, you can find author entity merging suggestions (or manually set your own merging orders from scratch) and perform the merge.

Implementation Details

The specific query run by the tool can be found in the source code.