While there are millions of ways to create models, there are some common patterns that are employed across different disciplines. However, choosing appropriate features is tricky and it is worth considering how a feature might correlate to the end result. As a well known adage goes, don't judge a book by its cover—it is probably not worth considering the size of a book if you are interested in the message contained within.
Some commonly used features focus on the physical properties of the real world objects being studied, for example:
- Spatial properties such as the length, width, and height of an object
- Weight and/or density of the object
- Age of an object or its components
- The type of the object
- The quality of the ...