breeze
https://github.com/scalanlp/breeze
Scala
Breeze is a numerical processing library for Scala.
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- Issues
- CSCMatrix OpMulMatrix uses O(numRows) memory, which is too much for some applications
- Would be nice to have shorter, more pythonic array sliciing syntax.
- L-BFGS-B is stuck
- BacktrackingLineSearch is likely to select a sub-optimal step size
- SVD threading issue (lapack.dgesdd)
- Band sparse matrices
- Inconsistency of dimensions in QR decomposition
- Bitvector slicing does not work with negative integer
- Missing Transpose(DenseVector)*CSC operation?
- Incorrect convergence check in LBFGSB (bounded) algorithm
- Docs
- Scala not yet supported