Tag Archives: Watson

Beware. Your Teaching Assistant May Be a Robot


All college level students have at some point wondered if one or more of their professorial teaching assistants was from planet Earth. If you fall into this category — as I once did — your skepticism and paranoia are completely justified. You see, some assistants aren’t even human.

So, here’s my first tip to any students wondering how to tell if their assistant is an alien entity: be skeptical if her or his last name is Watson.

From WSJ:

One day in January, Eric Wilson dashed off a message to the teaching assistants for an online course at the Georgia Institute of Technology.

“I really feel like I missed the mark in giving the correct amount of feedback,” he wrote, pleading to revise an assignment.

Thirteen minutes later, the TA responded. “Unfortunately, there is not a way to edit submitted feedback,” wrote Jill Watson, one of nine assistants for the 300-plus students.

Last week, Mr. Wilson found out he had been seeking guidance from a computer.

Since January, “Jill,” as she was known to the artificial-intelligence class, had been helping graduate students design programs that allow computers to solve certain problems, like choosing an image to complete a logical sequence.

“She was the person—well, the teaching assistant—who would remind us of due dates and post questions in the middle of the week to spark conversations,” said student Jennifer Gavin.

Ms. Watson—so named because she’s powered by International Business Machines Inc. ’s Watson analytics system—wrote things like “Yep!” and “we’d love to,” speaking on behalf of her fellow TAs, in the online forum where students discussed coursework and submitted projects.

“It seemed very much like a normal conversation with a human being,” Ms. Gavin said.

Shreyas Vidyarthi, another student, ascribed human attributes to the TA—imagining her as a friendly Caucasian 20-something on her way to a Ph.D.

Students were told of their guinea-pig status last month. “I was flabbergasted,” said Mr. Vidyarthi.

Read the whole story here.

Image: Toy robots on display at the Museo del Objeto del Objeto in Mexico City, 2011. Courtesy: Alejandro Linares Garcia. Creative Commons Attribution-Share Alike 3.0.

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What Is I.B.M.’s Watson?

From The New York Times:

“Toured the Burj in this U.A.E. city. They say it’s the tallest tower in the world; looked over the ledge and lost my lunch.”

This is the quintessential sort of clue you hear on the TV game show “Jeopardy!” It’s witty (the clue’s category is “Postcards From the Edge”), demands a large store of trivia and requires contestants to make confident, split-second decisions. This particular clue appeared in a mock version of the game in December, held in Hawthorne, N.Y. at one of I.B.M.’s research labs. Two contestants — Dorothy Gilmartin, a health teacher with her hair tied back in a ponytail, and Alison Kolani, a copy editor — furrowed their brows in concentration. Who would be the first to answer?

Neither, as it turned out. Both were beaten to the buzzer by the third combatant: Watson, a supercomputer.

For the last three years, I.B.M. scientists have been developing what they expect will be the world’s most advanced “question answering” machine, able to understand a question posed in everyday human elocution — “natural language,” as computer scientists call it — and respond with a precise, factual answer. In other words, it must do more than what search engines like Google and Bing do, which is merely point to a document where you might find the answer. It has to pluck out the correct answer itself. Technologists have long regarded this sort of artificial intelligence as a holy grail, because it would allow machines to converse more naturally with people, letting us ask questions instead of typing keywords. Software firms and university scientists have produced question-answering systems for years, but these have mostly been limited to simply phrased questions. Nobody ever tackled “Jeopardy!” because experts assumed that even for the latest artificial intelligence, the game was simply too hard: the clues are too puzzling and allusive, and the breadth of trivia is too wide.

With Watson, I.B.M. claims it has cracked the problem — and aims to prove as much on national TV. The producers of “Jeopardy!” have agreed to pit Watson against some of the game’s best former players as early as this fall. To test Watson’s capabilities against actual humans, I.B.M.’s scientists began holding live matches last winter. They mocked up a conference room to resemble the actual “Jeopardy!” set, including buzzers and stations for the human contestants, brought in former contestants from the show and even hired a host for the occasion: Todd Alan Crain, who plays a newscaster on the satirical Onion News Network.

Technically speaking, Watson wasn’t in the room. It was one floor up and consisted of a roomful of servers working at speeds thousands of times faster than most ordinary desktops. Over its three-year life, Watson stored the content of tens of millions of documents, which it now accessed to answer questions about almost anything. (Watson is not connected to the Internet; like all “Jeopardy!” competitors, it knows only what is already in its “brain.”) During the sparring matches, Watson received the questions as electronic texts at the same moment they were made visible to the human players; to answer a question, Watson spoke in a machine-synthesized voice through a small black speaker on the game-show set. When it answered the Burj clue — “What is Dubai?” (“Jeopardy!” answers must be phrased as questions) — it sounded like a perkier cousin of the computer in the movie “WarGames” that nearly destroyed the world by trying to start a nuclear war.

More from theSource here.

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