Eric Schmidt, chairman of Google's parent company, Alphabet has become CFO Marty Chavez's new mentor at Goldman Sachs; the relationship is part of a new initiative that has Goldman Sachs focused on making its services for risk comparable to Google's services for search; the bank wants to be the leading source for trading and managing risks giving its firm the attention of risk managers that Google gets from advertisers; to do this it has created Data Lake, a machine learning platform that manages information on transactions, markets and investment research as well as communication from emails, voice calls and instant messages; the new internal technology system is based on APIs that connect different parts of the business to the Data Lake central database making its communication processes more efficient. Source