Importing old networks trained using cortex 0.3* to 0.5*

[poojaramesh]

If you have a saved network that was trained using 0.3*, you can use this function to import it to 0.5* for inference or further training/fine-tuning.

(defn import-older-models
  [network]
  (when-let [network-desc (:network-description network)]
    (-> (mapv (fn [{:keys [type] :as layer}]
                (cond
                  (= type :convolutional) (assoc layer :dimension-op (layers/default-layer-type-dimension-op :convolutional))
                  (= type :max-pooling) (assoc layer :dimension-op (layers/default-layer-type-dimension-op :max-pooling))
                  :else layer))
              network-desc)
      network/build-network
      traverse/auto-bind-io)))