Models: Tag

Tagging is a general way of categorization information. We see tagging taking place at two levels.

1. Subject areas are a higher level of categorization since then get more weight in search results than ...
2. Tags, which are at a lower level, but serve to refine the subject area.

As an example, a subject area could be Visualization and tags related to this are 2D and scatterplot. Another subject area could be Image Processing, and this also has a 2D tag.

It is messy to deal with tags and subject areas as distinct database entries (tracking history, user assignment). So from a storage point of view they go in the same database table, but are distinguished only by the tag_type field in the model.

• name: tag name (preferably in Title Case for subject areas, and in lowercase for ordinary tags).
• description: a longer description of the tag (not sure if we will use this, but it could be useful)
• tag_type: a choice of either tag (ordinary tag) or subject for subject area tags.
• picture: we can consider adding small icons next to the tag in the future

Tags are assigned by the submitter and can be added/removed by the community as well as site editors.

Examples of subject area tags:

• Algorithm
• Automotive
• Biotech
• Chemistry
• Communications
• Control Systems
• Data Acquisition
• Documentation
• Earth Sciences
• Financial Services
• Games
• Graphic User Interface (GUI)
• Image and Video Processing
• Modeling
• Pharmaceutical
• Physics
• Probability
• Publications
• Simulation
• Statistics
• Visualization

Code possibilities

https://github.com/alex/django-taggit/#readme