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821.
Wetzel Martin Wörn Jonathan Hünteler Bettina Hank Karsten 《Social indicators research》2022,159(3):1103-1123
Social Indicators Research - For people living in the former East Germany, reunification with the former West Germany fundamentally transformed the sociopolitical system and most domains of... 相似文献
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Matthias Söllner Axel Hoffmann Holger Hoffmann Jan Marco Leimeister 《Zeitschrift für Betriebswirtschaft》2012,82(4):109-140
Trust has been shown as a crucial factor for the adoption of new technologies. Surprisingly, trust literature offers very little guidance for systematically integrating the vast amount of behavioral trust results into the development of computing systems. The aim of this article is to develop a method for deriving trust supporting components for ubiquitous computing systems. The method is used to derive four trust supporting components for a ubiquitous restaurant recommendation system. Afterwards, the system is evaluated using a laboratory experiment with 166 undergraduate students. The results show that the users’ trust as well as their intention to use the system could be significantly increased. To the best of our knowledge, this is the first article developing and evaluating a method for systematically integrating the behavioral trust results into the development of a computing system and its value. 相似文献
823.
This paper investigates the applications of capture–recapture methods to human populations. Capture–recapture methods are
commonly used in estimating the size of wildlife populations but can also be used in epidemiology and social sciences, for
estimating prevalence of a particular disease or the size of the homeless population in a certain area. Here we focus on estimating
the prevalence of infectious diseases. Several estimators of population size are considered: the Lincoln–Petersen estimator
and its modified version, the Chapman estimator, Chao’s lower bound estimator, the Zelterman’s estimator, McKendrick’s moment
estimator and the maximum likelihood estimator. In order to evaluate these estimators, they are applied to real, three-source,
capture-recapture data. By conditioning on each of the sources of three source data, we have been able to compare the estimators
with the true value that they are estimating. The Chapman and Chao estimators were compared in terms of their relative bias.
A variance formula derived through conditioning is suggested for Chao’s estimator, and normal 95% confidence intervals are
calculated for this and the Chapman estimator. We then compare the coverage of the respective confidence intervals. Furthermore,
a simulation study is included to compare Chao’s and Chapman’s estimator. Results indicate that Chao’s estimator is less biased
than Chapman’s estimator unless both sources are independent. Chao’s estimator has also the smaller mean squared error. Finally,
the implications and limitations of the above methods are discussed, with suggestions for further development.
We are grateful to the Medical Research Council for supporting this work. 相似文献
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Heike Kahlert Heidi Möller Natalie Prantl Hermann Josef Ingenlath Ariane Schorn Ferdinand Buer 《Organisationsberatung, Supervision, Coaching》2005,12(3):297-302
Ohne Zusammenfassung 相似文献
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Prof. Dr. Jörg Sydow 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2002,54(2):406-407
Ohne Zusammenfassung 相似文献