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271.
Martin Meißner Reinhold Decker Sren W. Scholz 《Journal of Multi-Criteria Decision Analysis》2010,17(5-6):167-177
The Pairwise Comparison‐based Preference Measurement (PCPM) approach has been proposed for products featuring a large number of attributes. In the PCPM framework, a static two‐cyclic design is used to reduce the number of pairwise comparisons. However, adaptive questioning routines that maximize the information gained from pairwise comparisons promise to further increase the efficiency of this approach. This paper introduces a new adaptive algorithm for PCPM, which accounts for several response errors. The suggested approach is compared with an adaptive algorithm that was proposed for the Analytic Hierarchy Process as well as a random selection of pairwise comparisons. By means of Monte Carlo simulations, we quantify the extent to which the adaptive selection of pairwise comparisons increases the efficiency of the respective approach. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
272.
Synchronizing movements with the metronome: nonlinear error correction and unstable periodic orbits.
The control of human hand movements is investigated in a simple synchronization task. We propose and analyze a stochastic model based on nonlinear error correction; a mechanism which implies the existence of unstable periodic orbits. This prediction is tested in an experiment with human subjects. We find that our experimental data are in good agreement with numerical simulations of our theoretical model. These results suggest that feedback control of the human motor systems shows nonlinear behavior. 相似文献
273.
Ulrica von Thiele Schwarz 《Psychologie appliquee》2011,60(3):377-396
Recovery from work stress is crucial in avoiding stress‐related ill‐health. The aim of this longitudinal study was to investigate whether processes that prolong the mental exposure to work stressors, such as inability to withdraw from work (IW), the core construct in overcommitment, predicts fatigue and poor next‐day recovery 6 months later over what is predicted by job control and job demands. Self‐ratings in questionnaires were completed by 160 women working in dental care at two time points, 6 months apart. Job demands, job control, and IW were used to predict fatigue and poor next‐day recovery, respectively. Multiple regression analyses show that having children living at home, high job demands, and high IW were associated with fatigue 6 months later. Job demands and IW, but not having children at home, predicted poor next‐day recovery. Mediation analyses using a bootstrapping procedure indicated that IW partly mediated the relationship between job demands and fatigue and between job demands and next‐day recovery. These findings highlight the importance of considering IW in relation to fatigue and recovery from work and that such factors should be included in interventions targeting work‐related stress. 相似文献
274.
275.
What is the relation between the identifiability of masked flankers and their ability to induce compatibility effects in a letter classification task? Using a within-subjects design (n=8), we first determined identification performance for two flankers (H or N) around an irrelevant target letter as a function of the time (stimulus onset asynchrony, or SOA) after which the flankers were masked. In a second condition, subjects classified the central letter of the same stimulus patterns irrespectively of the identity of the flankers. The compatibility effects increased with increasing identification performance as a function of SOA, and we found a significant compatibility effect even at an SOA at which the identifiability of the flankers did not differ significantly from zero. We discuss the statistical power of our design and an interpretation of our results in terms of a dissociation between perceptual processes and processes directly activating the motor system (direct parameter specification; cf. Neumann, 1990). 相似文献
276.
277.
This paper reports an experimental investigation of presuppositions and scalar implicatures in language acquisition. Recent proposals (Chemla 2009; Romoli 2012, Romoli in J Semant 1–47, 2014) posit the same mechanisms for generating both types of inferences, in contrast to the traditional view. We used a Covered Box picture selection task to compare the interpretations assigned by two groups of children (4/5 and 7 year olds) and by adults, in response to sentences with presuppositions and ones with either ‘direct’ or ‘indirect’ scalar implicatures. The main finding was that the behavior of children and adults differed across inference types. This asymmetry is consistent with the traditional perspective, but poses a challenge for the more recent uniform accounts. We discuss how the latter could be amended to account for these findings, and also relate the findings to previous results on presupposition processing. Finally, we discuss an unexpected difference found between direct and indirect scalar implicatures. 相似文献
278.
Lucia Schwarz 《The Southern journal of philosophy》2020,58(3):431-455
Here is a prima facie plausible view: since the metaethical error theory says that all positive moral claims are false, it makes no sense for error theorists to engage in normative ethics. After all, normative ethics tries to identify what is right or wrong (and why), but the error theory implies that nothing is ever right or wrong. One way for error theorists to push back is to argue for “concept preservationism,” that is, the view that even though our ordinary moral discourse is deeply flawed, we should nevertheless continue to engage in moral thought and talk. However, in this article, I pursue a different strategy. I argue that even if we completely abandon moral discourse, thus endorsing “concept abolitionism,” the discipline of normative ethics survives. While traditional normative ethics uses as its “starting points” moral claims and beliefs, instead, concept abolitionists can make use of alternative utterances and attitudes that share salient characteristics with moral claims and beliefs, allowing for a kind of theorizing that is practically oriented, impartial, involves the traditional subject matters and methods of normative ethics, and allows engagement with the arguments of traditional moral philosophers. 相似文献
279.
Implementation Intentions and Facilitation of Prospective Memory 总被引:6,自引:0,他引:6
Forming detailed implementation intentions for a future behavior can increase the probability that the behavior is actually completed. We investigated whether this intention effect could be used to improve prospective memory in older adults. As expected, participants who formed an implementation intention were more than twice as likely to self-initiate the intended behavior (writing down the day of the week on every sheet of paper received during the experiment) compared with participants who either were merely instructed to do so or actively rehearsed the instruction. Forming an implementation intention, however, did not improve performance on a task that required a response to salient cues. We conclude that detailed implementation intentions facilitate prospective memory on tasks that lack salient cues and require self-initiation. 相似文献
280.
Women who were exposed to advertisements that portrayed women in their traditional role as homemakers reported less favorable attitudes toward political participation than women who were not exposed to advertisements. Exposure to portrayals of women as sex objects, on the other hand, did not affect women's attitudes. In contrast, men reported less favorable attitudes toward political participation after exposure to advertisements that portrayed women as sex objects, but were not affected by portrayals of women as homemakers. Implications for the influence of sex roles on political participation and the impact of sexist advertisements are discussed. 相似文献