Parallel computation and computers for artificial intelligence / ed. by Janusz S. KowalikCoupling symbolic and numerical computing in expert systemsAdvances in high performance computing / ed. by Lucio Grandinetti, Janusz Kowalik and Marian VajtersicCyberspace security and defense : research issues / ed. by Janusz S. Kowalik, Janusz Gorski and Anatoly SachenkoCoupling symbolic and numerical computing in expert systems