Wednesday 16 September 2015

Intelligent Machines: New York's super smart AI couple


Amelia

If you thought that wandering round a party trying to "network" with people was awkward, try making small talk with a machine. I recently went to New York to meet two - a virtual assistant dubbed Amelia owned by IPsoft and the IBM-owned cognitive platform Watson.

First problem - you aren't sure what questions you can ask and what you can't. These machines are not yet ready for general chit-chat. They are only as good as the data that they have ingested.

Amelia is the embodiment of smart efficiency - her on-screen avatar projecting the image of an ambitious and business-like young woman.

I start with small talk and ask her, perhaps stupidly, how she is. It doesn't compute. I ask her where she lives."Right in front of you", she replies.OK that is logical but not exactly chatty so I try a new tack - asking her what she can talk about. It turns out that there is a wide range of conversation avenues she wants to go down - from how to install fire and smoke alarms, to help with my mortgage.
Amelia is being used in a wide variety of industries - she is a cosmetic adviser for one of the largest retailers in Japan, a financial adviser for a large New York-based investment house and a vendor manager for oil and gas contractor Baker Hughes.

Graphical representation of Amelia's brain

She is the result of 17 years worth of work from her charismatic and enthusiastic creator Chetan Dube and his team of scientists from fields as diverse as computational linguistics, semantic networks, spread activation and affective computing.

Prof Dube began thinking about such a creation when he was assistant professor of mathematics at New York University.

Seventeen years later he believes we are at the breakthrough moment for AI - which will, he predicts, become "the megatrend of the 21st Century".

Already there are plenty of virtual assistants available on the web, like furniture store Ikea's Anna, who is designed to help you around the website.


Office worker


But ask Anna to go outside of her comfort zone and answer a question about something other than soft furnishing, and she gets dumb pretty quickly.

Amelia is different, according to Prof Dube, because she has been developed by studying how the human brain processes information.

"We study how neural mind maps work. Not just the syntax of what is said but the semantics of what is said," he tells the BBC.

So peek behind the avatar into her "brain" and you will see that it emulates neural behaviour - she builds a mind map of the questions, and looks not just at how sentences are constructed but the deeper meaning behind them.Prof Dube likens her to "a Mensa kid intern".

Although perhaps unlike her human equivalent she has no problem admitting if she doesn't understand a question. She will pass the person asking on to a human helper, listen in and then deconstruct how the problem was solved so she can do it herself the next time around.
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And she learns pretty quickly - when she began work as a digital service desk engineer at a media company, she could deal with just 32% of the queries in the first month but by the end of the third month she was able to deal with more than 60%, according to Prof Dube.

Prof Dube has huge ambitions for Amelia and sees her going far further than most experts would dare to suggest - providing the brains behind a walking, talking AI within the next 10 years as robotics mature and offer very more realistic "bodies" for sofware brains such as Amelia.

"I have the firm conviction that within this decade we will be able to pass someone in the corridor and not know if they are human or Android," he said.

I've met a few robots and they seem to fall over a lot so I'm not convinced we are yet ready for talking, walking AIs.

It was difficult to assess the performance of Amelia because the topics she knew about were not really ones I wanted to know about, although she did offer the potential for more human-like chat.

Source : BBC News.

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