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EPJ Data Science
Figure 4 | EPJ Data Science

Figure 4

From: Mapping the physics research space: a machine learning approach

Figure 4

Fingerprinting knowledge production profiles. Each row represents an urban area, each column a PACS code, and each colored dot indicates that a given location has a revealed comparative advantages in the production of papers in a given PACS code in the time window 2007–2009. Colors identify the ten different PACS Sections. Separate bar charts are reported for three cities showing the fraction of PACS codes in which the city has a revealed comparative advantage over the total number of PACS codes in that section

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