Wednesday, April 3, p.m. Room 47

Symposium Q: History of Cybernetics and Information Technology
F. Pichler, Austria

E.B. Fleissner and A. Figl
O. Horak, Matzendorf-Hölles, Austria
On the Development of the Lieben Vacuum Tube (LRS-Relais)
F. Pichler, Johannes Kepler University, Linz, Austria

Symposium B: Mathematical Methods in Cybernetics and Systems Theory
Y.Rav, France

Linking Model Construction in General System Problem Solving with Hidden Markov Models
D. Van Welden, E. Noldus, University of Ghent, Belgium
Analysis and Application of Chaotic Permutation Systems
J. Scharinger, Johannes Kepler University, Linz, Austria
Optimization of Inventory Control Systems Based on the Past Data
N.A. Nechval, K.N. Nechval, E.K. Vasermanis, University of Latvia, Latvia
An Algebraic Characterization of the Tree Automata Inference
I. Sierocki, Technical University of Wroclaw, Poland