Hans-Peter Kreplin, retired

A Study of Various Graphical Passwords Authentication Schemes Using Ai Hans Peter Wickelgren Approach

Using AI Hans peter Wickelgren applying the usage of text-based passwords is common authentication system in any Application. This conventional authentication scheme faces some kind of limitations and drawbacks with usability and crypto-graphical security issues that bring troubles to users. For example, user tends to pick passwords that can be easily guessed. On the contrary, if a password is ...

Mean Field Behaviour in a Local Low - Dimensional Model Hans - Martin Bröker and Peter Grassberger

We point out a new mechanism which can lead to mean field type behaviour in nonequilibrium critical phenomena. We demonstrate this mechanism on a two-dimensional model which can be understood as a stochas-tic and non-conservative version of the abelian sandpile model of Bak et al. [1]. This model has a second order phase transition whose critical behaviour seems at least partly described by the...

Hans Arnold Heilbronn 1908-1975 Hans

Hans Peter Luhn and Herbert M. Ohlman: Their roles in the origins of keyword-in-context/permutation automatic indexing

InNovember 1958, at the International Conference on Scientific Information (ICSI) in Washington, DC, Hans Peter Luhn, of the International Business Machines (IBM) Company, and Herbert M. Ohlman, of the System Development Corporation (SDC), simultaneously and independently presented their new systems for automatic indexing. Luhn called his system “Keyword-in-Context (KWIC) indexing” and Ohlman c...

Hans Meinhardt

Hans Meinhardt is a theoretical developmental biologist working at the Max-Planck-Institute for Developmental Biology in Tübingen. He has pioneered the use of mathematical modelling of embryonic pattern formation. He received his PhD from the University of Cologne in Physics. For a postdoctoral fellowship, he went to the European High Energy Laboratory CERN at Geneva. By collaborating in an exp...