Google parent Alphabet topped third-quarter revenue expectations on Tuesday, helped by steady growth in its digital advertising business and an AI-driven jump in demand for its cloud services.Shares of the company rose more than 3% in extended trading.CEO Sundar Pichai said investments in AI were “paying off” through use and sales in its Search and Cloud businesses.CEO Sundar Pichai said investments in AI were “paying off.” AFP via Getty ImagesYouTube revenue surpassed $50 billion over the past four quarter ...