Methods to estimate the parameters and the time delay of continuous time transfer function models using different nonideal step inputs are presented. By nonideal step inputs we refer to excitation signals that initially change gradually or in smaller steps to a final value unlike the ideal step that requires a sudden jump equalling the size of the step. Many different forms of such input signal...

In [BKT11] Baba, Kotyada and Teja introduced the FACTOR problem over non-abelian groups as base of an ElGamal-like cryptosystem. They conjectured that there is no better method than the naive one to solve the FACTOR problem in a general group. Shortly afterwards Stanek published an extension of the baby-step giant-step algorithm disproving this conjecture [Sta11]. Since baby-step giant-step met...

A survey was conducted on 210 Baby Boomers (Age mean = 51.4 Std. dev. 5.46) within the United States to determine their current use of online technology in social interactions, their preferences in these interactions, and the expectations they have of near-future online communication technologies. The findings highlight the importance of online communication in their lives and spotlight their w...

Anneke Horstman, Mengfan Li, Iris Heidmann, Mieke Weemen, Baojian Chen, Jose M. Muino, Gerco C. Angenent, and Kim Boutilier Wageningen University and Research, Bioscience, 6708 PB Wageningen, The Netherlands Wageningen University and Research, Laboratory of Molecular Biology, 6708 PB Wageningen, The Netherlands Enza Zaden Research and Development, 1602 DB Enkhuizen, The Netherlands Max Planck I...

We present a simple procedure to construct non-local conserved charges for classical open strings on coset spaces. This is done by including suitable reflection matrices on the classical transfer matrix. The reflection matrices must obey certain conditions for the charges to be conserved and in involution. We then study bosonic open strings on AdS5×S. We consider boundary conditions correspondi...

We propose a new protocol providing cryptographically secure authentication to unaided humans against passive adversaries. We also propose a new generic passive attack on human identification protocols. The attack is an application of Coppersmith’s baby-step giantstep algorithm on human identification protcols. Under this attack, the achievable security of some of the best candidates for human ...

Methods to avoid overrtting fall into two broad categories: data-oriented (using separate data for validation) and representation-oriented (penalizing complexity in the model). Both have limitations that are hard to overcome. We argue that fully adequate model evaluation is only possible if the search process by which models are obtained is also taken into account. To this end, we recently prop...

Abstract The axiom system ACP of [10] was extended to discrete time in [6]. Here, we proceed to define the silent step in this theory in branching bisimulation semantics [7, 15] rather than weak bisimulation semantics [11, 20]. The version using relative timing is discussed extensively, versions using absolute and parametric timing are presented in brief. A term model and a graph model are pres...

We study a Monte Carlo algorithm for simulation of probability distributions based on stochastic step functions, and compare to the traditional Metropolis/Hastings method. Unlike the latter, the step function algorithm can produce an uncorrelated Markov chain. We apply this method to the simulation of Levy processes, for which simulation of uncorrelated jumps are essential. We perform numerical...