Echo State Networks (ESNs) are Recurrent Neural with fixed input and internal (hidden) weights, adaptable output weights. The hidden part of an ESN can be considered as a discrete-time dynamical system, called reservoir. In classical ESNs, the connections obtained from Erd?s-Rényi graph. A recent study proposed ESNs clustered adjacency matrices (CESNs), where clusters either graphs or Barabási-...

introduction: it has been reported that atypical chest pain could have some relationship with panic disorders, anxiety and some other psychological problems. the present case control study is performed to evaluate general health state of patients with atypical chest pain and to study the most usual accompanying symptoms. methods: patients with less than 35 years old were included in the study. ...