We develop a Bayesian sequential model for category learning. We define conjugate temporal priors to enable closed form solutions to be obtained. This model can be easily extended to supervised and unsupervised learning involving multiple categories. To model the spacing effect, we introduce a generic prior in the temporal updating stage to capture a learning preference, namely, less change for repetition and more change for variation. Finally, we show how this approach can be generalized to efficiently performmodel selection to decide whether observations are from one or multiple categories.
Fox News Flash top entertainment and celebrity headlines are here. Check out what's clicking today in entertainment. The Grammy Awards have changed the name of their best world music album category to the best global music album, an attempt to find "a more relevant, modern and inclusive term." The Recording Academy said in a statement that the new name "symbolizes a departure from the connotations of colonialism, folk and'non-American' that the former term embodied." "As we continue to embrace a truly global mindset, we update our language to reflect a more appropriate categorization that seeks to engage and celebrate the current scope of music from around the world," the statement said.
WASHINGTON – Orders for long-lasting manufactured goods rose 2.6 percent in March, but a key category that tracks business investment spending fell for the third month out of the past four. The Commerce Department says the big rise in orders for durable goods, which followed an even bigger 3.5 percent advance in February, was driven by a surge in demand for commercial aircraft. Excluding the volatile transportation category, orders would have been flat last month after a modest 0.9 percent rise in February. The key category that follows business investment plans edged down 0.1 percent in March after a 0.9 percent increase in February. This investment category was also down in January and December, raising concerns about this important driver of economic growth.
As hurricane season ramps up, what is a Category 5? Why is there no Category 6? Hurricanes are measured on the Saffir-Simpson scale, which was first developed in 1971. It was developed by civil engineer Herbert Saffir and meteorologist Robert Simpson who was running the National Hurricane Center (NHC) at the time. It was introduced to the public in 1973. The scale at first incorporated other factors, but now refers simply to how fast the wind is blowing. A Category 5 hurricane means that it has winds blowing 157 miles per hour or more.