矩阵,返回矩阵相乘的结果。 在数值分析中,稀疏矩阵(Sparse matrix),是其元素大部分为零的 ...
题目: Given twosparse matricesAandB, return the result ofAB. You may assume thatA s column number is equal toB s row number. Example: 链接:http: leetcode.com problems sparse matrix multiplication 题解: Spar ...
2015-12-20 12:48 0 1987 推荐指数:
矩阵,返回矩阵相乘的结果。 在数值分析中,稀疏矩阵(Sparse matrix),是其元素大部分为零的 ...
70ms solution: use one HashTable: 160 ms The idea is derived from a CMU lecture. A sparse matrix can be represented as a sequence ...
Problem Description: Given two sparse matrices A and B, return the result of AB. You may assume that A's column number is equal to B's row number. ...
Given two sparse matrices A and B, return the result of AB. You may assume that A's column number is equal to B's row number. Example: 这道题 ...
coo_matrix.tocsr(copy = False ) 将此矩阵转换为压缩稀疏行格式,重复的条目将汇总在一起。 举例: from numpy import array from scipy.sparse import coo_matrix row = array ...
Sparse Matrix Types Block Sparse Row matrix class scipy.sparse.bsr_matrix(arg1, shape=None, dtype=None, copy=False, blocksize=None ...
这是一个相当simple & naive的方法,几行代码完成的CSR稀疏矩阵格式的优化,剔除0元素。由于目前AMD的OpenCL SDK依旧没有赶上NVIDIA CUDA SDK的进度——新的 ...
from scipy import sparse sparse.save_npz('./filename.npz', csr_matrix_variable) #保存 csr_matrix_variable = sparse.load_npz('path.npz') #读 参考 ...