Of course, the company still needs to determine whether a user is, in fact, dead. But with a ratio of roughly 350,000 members to every Facebook employee, the company must find ways to let its members and its computers do much of that work.

For a site the size of Facebook, automation is “key to social media success,” said Josh Bernoff, an analyst at Forrester Research and co-author of “Groundswell: Winning in a World Transformed by Social Technologies.”

“The way to make this work in cases where machines can’t make decisions is to tap into the members,” he said, pointing to Facebook’s buttons that allow users to flag material they find inappropriate. “One way to automate the ‘Is he dead’ problem is to have a place where people can report it.”

That’s just what Facebook does. To memorialize a profile, a family member or friend must fill out a form on the site and provide proof of the death, like a link to an obituary or news article, which a staff member at Facebook will then review.

But this option is not well publicized, so many profiles of dead members never are converted to tribute pages. Those people continue to appear on other members’ pages as friend suggestions, or in features like the “reconnect” box, which has been spooking the living since it was introduced last October.

Ms. Chin said Facebook was considering using software that would scan for repeated postings of phrases like “Rest in peace” or “I miss you” on a person’s page and then dispatch a human to investigate that account.

“We are testing ways to implement software to address this,” she said. “But we can’t get it wrong. We have to do it correctly.”