UncertML
From Intamap
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UncertML Discussion
This page contains a list of questions and comments received regarding the UncertML specification.
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Questions
If you have any questions about UncertML either email me (Matt) directly or post a question below. Either way I will provide the answer below.
- Q. The API is going to be in what language?
The UncertML API will be primarily developed in Java. However, there may be scope to create APIs in other languages.
- Q. What version of GML does UncertML support?
UncertML supports GML 3.x.x
- Q. Will sparse covariance matrix representations be supported?
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Comments
These are general comments about the UncertML specification that I have received. Feel free to respond to comments if you agree or disagree.
- I think that it is better to put all the values of the covariance matrix, than just a triangular description. Even if there is redundancy, it is simpler to understand.
- Why not provide an attribute for the covariance matrix that allows the user to specify the encoding of the covariance matrix whether it's full, lower triangular, etc? This would also facilitate including functionality for sparse matrix representations such as: CSR, CSC, MSR, diagonal, banded, etc... which for many datasets could reduce the size of the XML significantly. This doesn't have to be an implementation of an exhaustive list of techniques, just some of the more common ones that might be used.
