gasmaskhome

I am computing the solution of a linear system Ax=b with A a large (typically 200,000 lines and col… Read more Scipy.sparse.linalg.spsolve Surprising Behaviour For Large Sparse Matrices On Linux Systems

I have written this code in Python that is giving expected results but is extremely extremely slow.… Read more Extremely Slow Sum Row Operation In Sparse Lil Matrix In Python

I am creating a co-occurring matrix, which is of size 1M by 1M integer numbers. After the matrix i… Read more How To Incrementally Create An Sparse Matrix On Python?

I'm trying to use mpi4py to assemble a very large sparse matrix in parallel. Each rank produces… Read more Parallel Assembly Of A Sparse Matrix In Python

From the documentation of sklearn RandomizedPCA, sparse matrices are accepted as input. However whe… Read more Scikit-learn (sklearn) Pca Throws Type Error On Sparse Matrix

I try to update a dict_with_tuples_key with the data from an array: myarray = np.array([[0, 0], # … Read more 2d Array To Represent A Huge Python Dict, Coordinate Like Solution To Save Memory

I want to additively populate a matrix with values inferred from an rdd using a pyspark accumulator… Read more Pyspark Matrix Accumulator

I'm trying to display tsne on a very sparse matrix with precomputed distances values but I'… Read more Sklearn Tsne With Sparse Matrix