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MAY. 6 5:44 P.M. ET Visitors to Walt Disney World may soon be greeted by "Happy Birthday" or "Happy Anniversary" under plans to use technology to create a personal touch or improve efficiency.

Walt Disney World this week unveiled a host of new attractions, many copied from other Disney parks, to celebrate the 50th anniversary of the company's first foray into the theme park business. Absent, though, were announcements on new big-ticket attractions for the future -- usually a staple of media events held at the Florida resort for such celebrations.

"You're going to see us have traditional growth ... adding new shows, new attractions and new lands into our parks," said Al Weiss, president of Walt Disney Co.'s Disney World unit, said on Friday. "But we're going to look at technology as a way to continue to grow our business."