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Data visualisation 2: Tree map of citation counts by subject (Top 20)

Context

This is 2 of 6 data visualisations for the Dashboard.

User Story: As a dashboard user, I would like to see a visualisation of citation counts, so that I can evaluate citation practices across subject areas based on my user specific view (filters applied).

Note: There are sub-classifications (main subject with sub-subjects) but the data does show this hierarchy so that's out of scope for this visualisation.

Proposal

Baseline

  1. A Tree map of citation counts by subject, showing only the top 20 subjects.
  2. The user can filter by one of the following at a time in the prototype.
  • Publisher: select one value from 10,000+ possible values
  • affiliation (look up from ROR ID) : select one value from ~2800 possible values -- this number is expected to increase by ~300 per year
  • Funder (look up from ROR ID or FundrefID) : select one value from ~2800 possible values -- this number is expected to increase by ~300 per year

Extension if time allows:

  1. Include caption to graph that provides information on citations that have been excluded because of pending metadata (Subject is null). Caption text: "X number of citations do not yet have sufficient metadata and are excluded from this chart".
  2. Investigate including the following filters. These are a last priority because there may not be many different subject classifications:
    • journal: select one value from thousands of possible values
    • repository: select one value from ~2800 possible values -- this number is expected to increase by ~300 per year
  3. User can filter by more than one facet at a time
  4. Users can selects multiple values from the same facet at a time

Design

See wireframe of prototype dashboard in figma.

viz-2

Still to be determined: The legend to the right of the tree graph may not work well depending on the lenght of subject names. Other options include showing the subject within the block only when the user hovers over a block.

Implementation

Alternative approaches (if applicable)

Scheduling

Edited by Dione Mentis