A sparse matrix is a data structure in which not every entry is explicitly represented.
I am looking for a good (in the best case actively maintained) C++ matrix library. Thereby it should be templated, …
c++ matrix sparse-matrix lapack umfpackI would appreciate any help, to understand following behavior when slicing a lil_matrix (A) from the scipy.sparse package. …
python scipy slice sparse-matrix submatrixI have two large sparse matrices: In [3]: trainX Out[3]: <6034195x755258 sparse matrix of type '<type 'numpy.float64…
python scikit-learn sparse-matrix nearest-neighborThere is also a counterpart which is called density array. What does this mean? I have done some search, but …
arrays data-structures sparse-matrixScipy has many different types of sparse matrices available. What are the most important differences between these types, and what …
python matrix scipy sparse-matrixIs there a way to convert from a pandas.SparseDataFrame to scipy.sparse.csr_matrix, without generating a dense matrix …
python pandas scipy sparse-matrixI am doing a text classification task with R, and I obtain a document-term matrix with size 22490 by 120,000 (only 4 million …
language-agnostic machine-learning sparse-matrix pcaWhat's the best way to represent a sparse data matrix in PostgreSQL? The two obvious methods I see are: Store …
sql postgresql relational-database sparse-matrixI'm using the Anaconda distribution of Python, together with Numba, and I've written the following Python function that multiplies a …
python parallel-processing anaconda sparse-matrix numbaI'm working turning a list of records with two columns (A and B) into a matrix representation. I have been …
python pandas scipy scikit-learn sparse-matrix