Harvard computer scientist found that the Johnson-Lindenstrauss lemma, a 30-year-old therum, is the best approach to pre-process large data into a manageably low dimension for algorithmic processing.
New research suggests that rare species of trees in rainforests may help safeguard biodiversity levels as the environment undergoes change.
Mass killings may have increasing news coverage, but the events themselves have happened at a steady rate for more than a decade, according to a new study by University of Illinois researchers. Furthermore, some types of mass-killing events seem to occur randomly over time, making prediction difficult and response crucial.
Interactions between species play a key role in shaping biodiversity. A team of researchers including members of UZH has now shown that the coevolution of species that are embedded in complex networks of interactions is not only influenced directly by their partners but also indirectly by other species. This slows down the ability of complex communities to adapt to environmental change. Rapid climate changes are therefore likely to increase species' risk of becoming extinct.
Improving police satisfaction in developing nations will require a reduction in corruption and greater public security and safety, a new study by researchers at the universities of Kent and Utrecht has shown.
For her Ph.D., Viglietti studied the fossil-rich sediments present in the Karoo, deposited during the tectonic events that created the Gondwanides, and found that the vertebrate animals in the area started to either go extinct or become less common much earlier than what was previously thought.
A pan-Canadian team of cancer researchers has developed a predictive model for detecting early-stage lung cancer in high-risk individuals with significantly greater accuracy than other leading models. This Terry Fox Research Institute study suggests the team's innovative approach could be considered for use in lung cancer screening programs both in Canada and around the world.
Since 1989, in 63 nature reserves in Germany the total biomass of flying insects has decreased by more than 75 percent. This decrease has long been suspected but has turned out to be more severe than previously thought. Ecologists from Radboud University together with German and English colleagues published these findings in the scientific journal PLOS ONE on Oct. 18.
The world's tropical forests are in 'a critical state' in which the extinction of rare tree species could be a tipping point, according to an international team of scientists who have developed an analytical method to map their biodiversity.
Extreme marine conditions like El Niño are associated with shorter food chain length in the California Current ecosystem, a new analysis reports. The finding counters previous evidence for long-term stability and ecosystem resilience in nitrogen cycling and food web structure off the