  This article proposed a hybrid detrended deconvolution foreign exchange
network construction method (DDFEN), which combined the detrended
cross-correlation analysis coefficient (DCCC) and the network deconvolution
method together. DDFEN is designed to reveal the `true' correlation of
currencies by filtering indirect effects in the foreign exchange networks
(FXNs). The empirical results show that DDFEN can reflect the change of
currency status in the long term and also perform more stable than traditional
network construction methods.
