原文:Leetcode: Sparse Matrix Multiplication

ms solution: use one HashTable: ms The idea is derived froma CMU lecture. A sparse matrix can be represented as a sequence of rows, each of which is a sequence of column number, value pairs of the no ...

2015-12-31 07:57 0 2301 推薦指數:

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[LeetCode] Sparse Matrix Multiplication

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. ...

Thu Dec 03 21:39:00 CST 2015 0 4329
sparse.coo_matrix()

coo_matrix.tocsr(copy = False ) 將此矩陣轉換為壓縮稀疏行格式,重復的條目將匯總在一起。 舉例: from numpy import array from scipy.sparse import coo_matrix row = array ...

Fri Mar 29 06:56:00 CST 2019 0 779
An Simple Method for Sparse Matrix Optimization by GPU

這是一個相當simple & naive的方法,幾行代碼完成的CSR稀疏矩陣格式的優化,剔除0元素。由於目前AMD的OpenCL SDK依舊沒有趕上NVIDIA CUDA SDK的進度——新的 ...

Fri Mar 16 18:36:00 CST 2012 1 2850
 
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