A closer look at Google Duplex

Google’s appointment booking AI wowed the crowd and raised concern at I/O

A month and change after I/O, Google convenes a meeting of a few small groups of journalists at an upscale Thai restaurant in Manhattan’s Upper East Side. It’s an unusual locale for one of the world’s largest companies.

The tables are cleared out to make room for nine chairs, in three rows of three, facing a large, brightly lit display. To the side, four Google employees sit behind a desk at a makeshift control center. The company is finally ready to offer a little more insight into Duplex, the most widely discussed — and controversial announcement during a rapid-fire keynote.

It’s a 180-degree shift from that sun-drenched day at Mountain View’s Shoreline Ampitheatre. All by design, of course. The cozy New York restaurant makes as much sense as any for such an event, as the company pulls back the curtain on the AI-based reservation service. Thep Thai’s owner insists that such a service would be something of a godsend for the 100-plus reservations the restaurant fields on a daily basis.

For Google, it was clearly time to offer some more transparency into both the purpose for such a system and the workings behind it. The brief demo presented by CEO Sundar Pichai raised far more questions than it answered. The think pieces began to flow, exploring the ethical ramifications for a system that appeared to be designed to fool a business into believing they were talking to a fellow human being.

Duplex represents a rare early look into an ongoing project from a company notorious for playing it close to the vest. But disclosure is key. As with self-driving cars, rigorous real-world testing is required to iron out all of the kinks in the system.

“While we’re not widely launching this feature yet, we’re sharing more information about this technology to provide transparency and encourage feedback,” the company writes in a blog post today. “It’s important that we get the experience right both for people and for businesses, and we’re taking a slow and measured approach as we incorporate learnings and feedback from our tests.”

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The nature of Google’s process was likely to get out some way or another, so announcing it at I/O served the dual purpose of getting in front of that narrative and offering an early look at an ambitious project on one of the company’s largest stages.

“What you’re going to hear is the Google Assistant scheduling an appointment at a real hair salon,” Pichai said to tentative applause during the keynote:

Hi, I’m calling to book a women’s haircut for a client. Um, I’m looking for something on May 3. – Google Assistant

Sure, give me one second. – Receptionist

Mm-hm. – Google Assistant

It was here the audience laughed, unbelieving. Then applause. Sure, the audience was in on the joke, but it was still hard to believe that what we were hearing was a purely automated version of Google’s AI assistant. The “mm-hm” was icing on the cake — a subtle vocal tick included to further conversation, all while leaving the other party none the wiser that she was speaking to a ‘bot.

Those vocal breaks, known as “speech disfluencies” in linguistics, are a normal and frequent part of speech, and a key part of the secret sauce that makes Duplex such a remarkable product. Among other things, they’re a polite workaround for the system.

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