Sparse Matrix-Vector Multiply,Ab=x,is one of the important kernels in Scientific Computation,Text Retrieval and Data Mining.

An efficient image compression algorithm based on sparse matrix;

Implementation of the Sparse Matrix Multiplication based on C++;

Improved algorithm of sparse matrix multiplying

Clutter characteristics of linear sparse array radar;

Ground moving target indicator(GMTI) using space-based sparse array is attractive.

This paper analyzes the effects of amplitued-phyase errors and element failure on antenna gain, beamwidth, beam direction, and sidelobe level in sparse array.

Then a description about how to use OOP method in electrical power system software designing in respects of system model, sparse matrices processing, universal power flow calculation etc.

The article describes the connecting way of Excel and Matlab and realizes the transferring of large-scale sparse matrices from Excel to Matlab,it makes fully use of the advantage of two software with a simple and particular method.

Combining the advantages of three-element technique with those of chain technique, and benefiting from the flexibility of arrow and structure of C language, the paper develops a new technique to process sparse matrices, which is called chaining three-element technique.

Genetic algorithm and FFT for the synthesis of element weight coefficients in asymmetric thinned arrays;

Genetic algorithm (GA) is used for the synthesis of thinned arrays (whose elements are thinned from the uniform grid),which uses not only element spacings but also element excitation as variables,so it provides more degree of freedom to control the characters of thinned arrays.