Dec 7 (Reuters) - IBM (IBM) is in advanced talks to acquire data-infrastructure company Confluent (CFLT) for about $11 billion, the Wall Street Journal reported on ​Sunday, in a move aimed at boosting Big Blue's ability ‌to capture growing demand for cloud services. The deal for Confluent, an open-source platform used to process ‌massive streams of real-time data - from bank transactions to website clicks - could be announced as early as Monday, the newspaper reported, citing unnamed sources. Reuters co ...