I want to know the answer to the following question:
In what year did a group of computer scientists build a model for ratings produced by rating agencies that turned out to be accurate for what happened in 2006-2008?
All the background I'm provided with is that "In 2005 a group of computer scientists built a computational model for the mechanism of biased ratings produced by rating agencies, which turned out to be adequate to what actually happened in 2006–2008.[citation needed]". Is that enough to answer the question?
Answer: yes