the R code provided by Professor Chris Sula<\/a>.<\/p>\nfor generating all possible edges and attaching the frequency of their occurrence within the data. The code includes a line which saves the edges table to a new CSV file. In Excel, I trimmed the cells to remove the leading spaces that would cause duplicate data in Gephi. I also removed subjects which were not considered \u201cofficial,\u201d e.g. \u201cApplicable JSTOR Subject Not Found.\u201d<\/p>\n
The edges table was uploaded to Gephi with Type set to Undirected. I copied Node names into the Labels column and assigned the field containing frequency to the edges\u2019 Weight field. Then, I calculated betweenness and Weighted Degree.<\/p>\n
I applied the following layouts to the final vis in this order: OpenOrd, Expansion (ten times), Noverlap. I set node color to #75b5ff and node size to a scale of 5 to 100 by Weighted Degree. I set edge color on a scale from pale to deep orange by edge\u2019s weight and edge thickness by the same measure.<\/p>\n
To be consistent with other visualizations I\u2019ve made for my office, I chose #D1D1D1 as the background color.<\/p>\n
I performed calculations for diameter and density. The diameter was 1, which is expected because each subject in the small dataset was connected to every other subject at least once. The density was high for the same reason.<\/p>\n
![\"\"](\"https:\/\/i0.wp.com\/studentwork.prattsi.org\/infoshow\/wp-content\/uploads\/sites\/2\/2017\/08\/Final-Vis-620x620.png?resize=620%2C620\")
<\/p>\n
Future Directions<\/h3>\n
I experimented with several layouts before resetting and applying the final mix. While they produced interesting visuals, they did not show the groupings I envisioned (like those of the Russian protest groups vis).<\/p>\n
Here’s the Fruchterman Reingold<\/p>\n
![\"\"](\"https:\/\/i0.wp.com\/studentwork.prattsi.org\/infoshow\/wp-content\/uploads\/sites\/2\/2017\/08\/Fruchterman-Reingold-620x396.png?resize=620%2C396\")
<\/p>\n
and the Force Atlas:<\/p>\n
![\"\"](\"https:\/\/i0.wp.com\/studentwork.prattsi.org\/infoshow\/wp-content\/uploads\/sites\/2\/2017\/08\/Force-Atlas-620x396.png?resize=620%2C396\")
<\/p>\n
For future iterations, I will try still more layouts, starting with the procedure of Nodus Labs.<\/p>\n
I would like for the vis to be interactive before presenting it to my supervisors (one of whom expressed explicitly her desire to see this done). Unfortunately, because of unknown complications with SigmaJS, this version is only available as an image or from the Gephi file. Embedding the vis in a site on our intranet with the ability to be manipulated and modified for the user\u2019s specific interest is the ideal, so I will continue troubleshooting.<\/p>\n
Further, the data used to create this vis were not a representative sampling. The most prominent nodes (like Public Policy & Administration) do not reflect the statistics taken of the original data (which show other subjects to be most popular by frequency of occurrence and other measures). Though, the vis is accurate in displaying which subjects occur together (Health Policy, Public Health, and Health Sciences are strongly linked, as is Health Policy and Public Policy & Administration). Because Gephi was limited in the size of the imported file just like R, the full dataset is not an option for analysis. Therefore, I will work with the other data scientists and information professionals in my office to select \u201cbetter\u201d records for analysis and visualization.<\/p>\n
On a strictly aesthetic basis, coworkers who have viewed the vis explained that the color scheme is misleading and the overlay of visual cues causes confusion. In class, we discussed that the use of color only stretches so far, so I will be revisiting those design decisions as well.<\/p>\n
Additionally, the data are private, so the final visualization won\u2019t be shareable outside of my company. Next steps for this vis thus include making it publicly available, so that all interested parties have access to this wealth of information concerning higher education.<\/p>\n
References<\/h3>\n
Bluestone, Marisa (2015). U.S. Publishing Industry\u2019s Annual Survey Reveals Nearly $28 Billion Revenue in 2015. Association of American Publishers<\/em>. Retrieved from http:\/\/newsroom.publishers.org\/us-publishing-industrys-annual-survey-reveals-nearly-28-billion-in-revenue-in-2015\/<\/p>\nGenerating and Visualizing Topic Models with Tethne and MALLET (2015). ASU Digital Innovation Group<\/em>. Retrieved from http:\/\/diging.github.io\/tethne\/api\/tutorial.mallet.html<\/p>\nHogan, Adam (2012). Visualizing the History of Philosophy as a social network: The Problem with Hegel. Design & Analytics<\/em>. Retrieved from http:\/\/www.designandanalytics.com\/visualizing-the-history-of-philosophy-as-a-social-network-the-problem-with-hegel<\/p>\nNodus Labs (2011). Network Analysis of Russian Protest Groups on Facebook using Gephi and Netvizz. Nodus Labs<\/em>. Retrieved from http:\/\/noduslabs.com\/cases\/russian-protest-network-analysis-facebook-gephi-netvizz\/<\/p>\nSullivan, Danny (2016). RIP Google PageRank score: A restrospective on how it ruined the web. Search Engine Land<\/em>. Retrieved from http:\/\/searchengineland.com\/rip-google-pagerank-retrospective-244286<\/p>\n <\/p>\n
Appendix I: Data Selection Process<\/h3>\n\n- Move from highest to lowest ranked on THE World University Rankings<\/span><\/li>\n
- Find institutional website.<\/span><\/li>\n
- Utilize Google advanced search shorthand to locate relevant sub-sites. The following slides explain this process.<\/span>\n
\n- Key search terms are listed in a later slide.<\/span><\/li>\n
- If information is difficult to glean from Google search, use the search function (and all other available tools) on the institution\u2019s home page.<\/span><\/li>\n
- Read every relevant site that has the institutional site name as its base (e.g. for University of California, Berkeley , peruse all pertinent sites with the base \u201cberkeley.edu\u201d).<\/span><\/li>\n
- Relevance refers to the potential for each initiative to produce new scholarship as a \u201ctangible priorit[y]\u201d of the institution.<\/span><\/li>\n<\/ol>\n<\/li>\n
- Pull data from these sites and organize in Access Database.<\/span>\n
\n- If no date is found, record is excluded from data set.<\/span><\/li>\n
- Consult JSTOR subject page to determine appropriate classification, if necessary (e.g. Sustainability includes \u201cenergy,\u201d \u201cenergy policy,\u201d etc.)<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Introduction Academic publishing is a large, lucrative business. From textbooks to journal articles and many formats in between, the publishing and distribution of scholarly materials rake in\u00a0over twenty-five\u00a0billion\u00a0dollars a year (Bluestone, 2015). I have the pleasure of working for a giant in the industry, ITHAKA Harbors, Inc. Specifically, I work for a subsidiary called JSTOR,…<\/p>\n","protected":false},"author":225,"featured_media":7215,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"coauthors":[],"class_list":["post-7212","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-visualization"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paBdcV-1Sk","_links":{"self":[{"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/posts\/7212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/users\/225"}],"replies":[{"embeddable":true,"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/comments?post=7212"}],"version-history":[{"count":0,"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/posts\/7212\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/media?parent=7212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/categories?post=7212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/tags?post=7212"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/studentwork.prattsi.org\/infovis\/wp-json\/wp\/v2\/coauthors?post=7212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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<\/a><\/p>\n