TY  - JOUR
A1  - Weske, Mathias
A1  - van der Aalst, Wil M. P.
A1  - Verbeek, H. M. W.
T1  - Advances in business process management
Y1  - 2004
SN  - 0169-023X
ER  - 
TY  - JOUR
A1  - Wildner, Uwe
T1  - Experimental evaluation of assigned signature checking with return address hashing on different platforms
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Wildner, Uwe
T1  - Compiler assisted self-checking of structural integrity using return adress hashing
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Willig, Andreas
A1  - Matheus, K.
A1  - Wolisz, A.
T1  - Wireless technology in industrial networks
N2  - With the success of wireless technologies in consumer electronics, standard wireless technologies are envisioned for the deployment in industrial environments as well. Industrial applications involving mobile subsystems or just the desire to save cabling make wireless technologies attractive. Nevertheless, these applications often have stringent requirements on reliability and timing. In wired environments, timing and reliability are well catered for by fieldbus systems (which are a mature technology designed to enable communication between digital controllers and the sensors and actuators interfacing to a physical process). When wireless links are included, reliability and timing requirements are significantly more difficult to meet, due to the adverse properties of the radio channels. In this paper we thus discuss some key issues coming up in wireless fieldbus and wireless industrial communication systems:1)fundamental problems like achieving timely and reliable transmission despite channel errors; 2) the usage of existing wireless technologies for this specific field of applications; and 3) the creation of hybrid systems in which wireless stations are included into existing wired systems
Y1  - 2005
SN  - 0018-9219
ER  - 
TY  - JOUR
A1  - Willig, Andreas
A1  - Mitschke, Robert
T1  - Results of bit error measurements with sensor nodes and casuistic consequences for design of energy-efficient error control schemes
N2  - For the proper design of energy-efficient error control schemes some insight into channel error patterns is needed. This paper presents bit error and packet loss measurements taken with sensor nodes running the popular RFM
Y1  - 2006
SN  - 978-3-540-32158-3
ER  - 
TY  - JOUR
A1  - Wong, P.
A1  - Besnard, Philippe
T1  - Paraconsistent reasoning as an analytical tool
Y1  - 2000
SN  - 1367-0751
ER  - 
TY  - JOUR
A1  - Wübbeler, G.
A1  - Ziehe, Andreas
A1  - Mackert, B.-M.
A1  - Müller, Klaus-Robert
A1  - Trahms, L.
A1  - Curio, Gabriel
T1  - Independent component analysis of noninvasively recorded cortical magnetic DC-fields in humans
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Zender, Raphael
A1  - Metzler, Richard
A1  - Lucke, Ulrike
T1  - FreshUP-A pervasive educational game for freshmen
JF  - Pervasive and mobile computing
N2  - Students beginning their studies at university face manifold problems such as orientation in a new environment and organizing their courses. This article presents the implementation and successful empirical evaluation of the pervasive browser-based educational game "FreshUP", which aims at helping to overcome the initial difficulties of freshmen. In contrast to a conventional scavenger hunt, mobile pervasive games like FreshUP, bridging in-game and real world activities, have the potential to provide help in a motivating manner using new technology which is currently becoming more and more common. (C) 2013 Elsevier B.V. All rights reserved.
KW  - Pervasive game
KW  - Campus
KW  - Freshmen
KW  - e-learning
KW  - Mobile devices
KW  - SOA
KW  - Evaluation
Y1  - 2014
U6  - https://doi.org/10.1016/j.pmcj.2013.09.003
SN  - 1574-1192
SN  - 1873-1589
VL  - 14
SP  - 47
EP  - 56
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Ziehe, Andreas
A1  - Kawanabe, Motoaki
A1  - Harmeling, Stefan
T1  - Blind separation of post-nonlinear mixtures using linearizing transformations and temporal decorrelation
N2  - We propose two methods that reduce the post-nonlinear blind source separation problem (PNL-BSS) to a linear BSS problem. The first method is based on the concept of maximal correlation: we apply the alternating conditional expectation (ACE) algorithm-a powerful technique from nonparametric statistics-to approximately invert the componentwise nonlinear functions. The second method is a Gaussianizing transformation, which is motivated by the fact that linearly mixed signals before nonlinear transformation are approximately Gaussian distributed. This heuristic, but simple and efficient procedure works as good as the ACE method. Using the framework provided by ACE, convergence can be proven. The optimal transformations obtained by ACE coincide with the sought-after inverse functions of the nonlinearitics. After equalizing the nonlinearities, temporal decorrelation separation (TDSEP) allows us to recover the source signals. Numerical simulations testing "ACE-TD" and "Gauss-TD" on realistic examples are performed with excellent results
Y1  - 2004
SN  - 1532-4435
ER  - 
TY  - JOUR
A1  - Ziehe, Andreas
A1  - Müller, Klaus-Robert
A1  - Nolte, G.
A1  - Mackert, B.-M.
A1  - Curio, Gabriel
T1  - Artifact reduction in magnetoneurography based on time-delayed second-order correlations
Y1  - 2000
ER  -