LONDON (Reuters) - European information provider Relx has agreed to buy U.S.-based ID Analytics for $375 million to further boost its ability to spot fraud and produce credit scores for its fastest-growing risk division. Relx has transformed itself in the last decade, shedding its print publications and developing its ownership of data sets and analytics to help corporations make decisions. Listed in London, Amsterdam and New York, it has a market valuation of 37 billion pounds ($48 billion)...