短語詞組短語sparse character vector 稀疏特征向量Sparse Feature Vector 稀疏特征向量sparse vector instruction 稀疏向量指令sparse vector sensor array 稀疏矢量陣sparse vector operation 稀疏向量運(yùn)算sparse vector method 稀疏技術(shù)Sparse Matrix -Vector Multiplication 稀疏矩陣向量乘sparse matrix -vector product 向量積Sparse Vector Auto Regressive Model 稀疏向量自動回歸模型 返回 sparse vector