The articulatory variability of the Standard German (voiceless) dorsal fricative / / surfacing as [ ], [ ] or [ ] depending on the position within the syllable and the vowel context (cf. [2, 3]) is analysed by using electropalatographic and electromagnetic articulographic as well as averaged spectral data. The results are compared to those for the coronal fricatives and the velar plosive in Ger...

The subject of errors in menu studies is typically limited to reporting error rates (i.e., the number of clicks missing target items) or even completely neglected. This paper investigates menu navigation errors in more depth. We propose the Navigation Time Variability (NTV) measure to capture the total severity of navigation errors. The severity is understood as time needed to recover from the ...

Introduction Conclusions References

We consider a general scheme to construct Bayesian incentive-compatible mechanisms using a suitable ‘variable mechanism parametrization.’ The key idea is to perturb a given direct mechanism, which might not be truth revealing, introducing sufficient variability as a function of agents’ announcements to generate incentives for truthful revelation. We discuss a variable-price auction in a general...

Although variability is of fundamental concern and interest to statisticians, often this does not get communicated to students who are taught instead to view variability as a nuisance parameter. A brief survey of a few case studies, as well as a recounting of some history, shows that variability is worthy of study in its own right, and examination of variability leads to insights that might hav...

Although negotiating joint action through dialogue can be difficult, dyads may be able to improve collaborative performance by managing communicative efficiency in language production, balancing effort (words per turn) with output (turn-level success). Comparing dyads with high, medium, and low levels of accuracy in communication, growth curve modeling revealed a negative relationship between s...

The water demand to meet seasonal and long-term water needs in Thessaly, central Greece, is related to historical semi-arid conditions in the region, which is the main agricultural area of the country. In this paper irrigation water requirements are assessed through the estimation and monitoring of crop evapotranspiration ETc for cotton fields in Thessaly. Remotely sensed data are used to delin...