88 resultados para historical responsibilities
Resumo:
In this article, we provide an initial insight into the study of MI and what it means for a machine to be intelligent. We discuss how MI has progressed to date and consider future scenarios in a realistic and logical way as much as possible. To do this, we unravel one of the major stumbling blocks to the study of MI, which is the field that has become widely known as "artificial intelligence"
Resumo:
In 2003, through a conference presentation in Vancouver and a series of exchanges with Lemon, Leonidas convinced Adobe to substantially extend the coverage of the Greek script in forthcoming Adobe typefaces. The revised brief for Garamond was extended to include, for the first time in a digital typeface, extensive polytonic support, full archaic characters, and small capitals with optional polytonic diacritics; these features should be implemented with respect for the Greek language’s complex rules for case conversion, allowing full dictionary support regardless of the features applied. This project was the first where these issues were addressed, both from a documentation and a development point of view. Leonidas’ responsibilities lay with researching historical and current conventions, developing specifications for the appearance and behaviour of the typefaces, editing glyph outlines, and testing of development versions.
Resumo:
Widespread reports of low pollination rates suggest a recent anthropogenic decline in pollination that could threaten natural and agricultural ecosystems. Nevertheless, unequivocal evidence for a decline in pollination over time has remained elusive because it was not possible to determine historical pollination rates. Here we demonstrate a widely applicable method for reconstructing historical pollination rates, thus allowing comparison with contemporary rates from the same sites. We focused on the relationship between the oil-collecting bee Rediviva peringueyi (Melittidae) and the guild of oil-secreting orchid species (Coryciinae) that depends on it for pollination. The guild is distributed across the highly transformed and fragmented lowlands of the Cape Region of South Africa. We show that rehydrated herbarium specimens of Pterygodium catholicum, the most abundant member of the guild, contain a record of past pollinator activity in the form of pollinarium removal rates. Analysis of a pollination time series showed a recent decline in pollination on Signal Hill, a small urban conservation area. The same herbaria contain historical species occurrence data. We analyzed this data and found that there has been a contemporaneous shift in orchid guild composition in urban areas due to the local extirpation of the non-clonal species, consistent with their greater dependence on seeds and pollination for population persistence.