Certificate-based cryptography is a new kind of public key algorithm, which combines the merits of traditional Public key infrastructure(PKI) and identitybased
This paper presents a novel construction method of irregular Low-density parity-check(LDPC)codes based on Quasi-cyclic(QC) structure and zigzag pattern. By usin
Along with the explosive growth of images, automatic image annotation has attracted great interest of various research communities. However, despite the great progress achieved in the past two decades