A SPIEGEL ONLINE FAQ explains the origins of the diplomatic cables, their level of classification, the information they do and do not provide, and how to interprete the codes in the individual ...

Most of the documents released by Wikileaks came from a US defence department network accessible to millions of Americans, known as Siprnet.

The multitemporal polarimetric SAR (PolSAR) data contains the scattering change information during the growth of crops. However, the current classification methods usually directly use the addition of ...