zoning model prototype

[rfl-urbaniak]

• Experimental notebooks all live in docs/experimental_notebooks/zoning
• Zoning data transformations (later to start with a db rather than .csv), ending with a torch.Dataset are for now in zoning_data.ipynb. Once we settle down on what the ultimate pipeline should be without need for EDA, the final version will migrate to a module.
• The Data Loader lives in cities/utils/data_loader.py
• Examples of the model use are in zoning_model.ipynb
• The model and input registration handler are in cities/modeling/simple_linear.py, and their tests are in tests/test_simple_linear. As discussed, these need review and attention to the final failing test.
• The categorical interaction handler is in modeling/add_categorical_interactions.py, with a use example in zoning_categorical_interactions.py. What needs particular attention is the way it is passed to training - it would be great if this required less boilerplate.
• Performance testing is defined in modeling/evaluation.py, with use examples in zoning_performance_tests.ipynb. Later on I will need to refactor this to be more general and apply to any model, can be ignored for now.
• While for this particular application we could exploit nested plate structure (like we did in the previous cities models), the user might not want to use years/months etc., and to allow for more flexibility I for now at least went with a somewhat more general albeit slightly less efficient model structure.

[rfl-urbaniak]

Superseded by the experimental branch ru-tracts-model.