No AI in humour: R2-D2 walks into a bar, doesn’t get the joke

Alexa and Siri might be clever but there are a few things they’re missing

A robot walks into a bar. It goes CLANG.

Alexa and Siri can tell jokes mined from a humour database, but they don’t get them.

Linguists and computer scientists say this is something to consider on April Fools’ Day: Humor is what makes humans special. When people try to teach machines what’s funny, the results are at times laughable but not in the way intended.

“Artificial intelligence will never get jokes like humans do,” said Kiki Hempelmann, a computational linguist who studies humour at Texas A&M University-Commerce. “In themselves, they have no need for humour. They miss completely context.”

And when it comes to humour, the people who study it — sometimes until all laughs are beaten out of it — say context is key. Even expert linguists have trouble explaining humour, said Tristan Miller, a computer scientist and linguist at Darmstadt University of Technology in Germany.

“Creative language — and humour in particular — is one of the hardest areas for computational intelligence to grasp,” said Miller, who has analyzed more than 10,000 puns and called it torture. “It’s because it relies so much on real-world knowledge — background knowledge and commonsense knowledge. A computer doesn’t have these real-world experiences to draw on. It only knows what you tell it and what it draws from.”

Allison Bishop , a Columbia University computer scientist who also performs stand-up comedy, said computer learning looks for patterns, but comedy thrives on things hovering close to a pattern and veering off just a bit to be funny and edgy.

Humour, she said, “has to skate the edge of being cohesive enough and surprising enough.”

For comedians that’s job security. Bishop said her parents were happy when her brother became a full-time comedy writer because it meant he wouldn’t be replaced by a machine.

“I like to believe that there is something very innately human about what makes something funny,” Bishop said.

Oregon State University computer scientist Heather Knight created the comedy-performing robot Ginger to help her design machines that better interact with — and especially respond to — humans. She said it turns out people most appreciate a robot’s self-effacing humour.

Ginger, which uses human-written jokes and stories, does a bit about Shakespeare and machines, asking, “If you prick me in my battery pack, do I not bleed alkaline fluid?” in a reference to “The Merchant of Venice.”

Humour and artificial intelligence is a growing field for academics.

Some computers can generate and understand puns — the most basic humour — without help from humans because puns are based on different meanings of similar-sounding words. But they fall down after that, said Purdue University computer scientist Julia Rayz.

“They get them — sort of,” Rayz said. “Even if we look at puns, most of the puns require huge amounts of background.”

Still, with puns there is something mathematical that computers can grasp, Bishop said.

VIDEO: Restaurant robots are already in Canada

Rayz has spent 15 years trying to get computers to understand humour, and at times the results were, well, laughable. She recalled a time she gave the computer two different groups of sentences. Some were jokes. Some were not. The computer classified something as a joke that people thought wasn’t a joke. When Rayz asked the computer why it thought it was a joke, its answer made sense technically. But the material still wasn’t funny, nor memorable, she said.

IBM has created artificial intelligence that beat opponents in chess and “Jeopardy!” Its latest attempt, Project Debater , is more difficult because it is based on language and aims to win structured arguments with people, said principal investigator Noam Slonim, a former comedy writer for an Israeli version “Saturday Night Live.”

Slonim put humour into the programming, figuring that an occasional one-liner could help in a debate. But it backfired during initial tests when the system made jokes at the wrong time or in the wrong way. Now, Project Debater is limited to one attempt at humour per debate, and that humour is often self-effacing.

“We know that humour — at least good humour — relies on nuance and on timing,” Slonim said. “And these are very hard to decipher by an automatic system.”

That’s why humour may be key in future Turing Tests — the ultimate test of machine intelligence, which is to see if an independent evaluator can tell if it is interacting with a person or computer, Slonim said.

There’s still “a very significant gap between what machines can do and what humans are doing,” both in language and humour, Slonim said.

There are good reasons to have artificial intelligence try to learn to get humour, Darmstadt University’s Miller said. It makes machines more relatable, especially if you can get them to understand sarcasm. That also may aid with automated translations of different languages, he said.

Texas A&M’s Hempelmann isn’t so sure that’s a good idea.

“Teaching AI systems humour is dangerous because they may find it where it isn’t and they may use it where it’s inappropriate,” Hempelmann said. “Maybe bad AI will start killing people because it thinks it is funny.”

Comedian and computer scientist Bishop does have a joke about artificial intelligence: She says she agrees with all the experts warning us that someday AI is going to surpass human intelligence.

“I don’t think it’s because AI is getting smarter,” Bishop jokes, then she adds: “If the AI gets that, I think we have a problem.”

___

Seth Borenstein, The Associated Press

Like us on Facebook and follow us on Twitter.

Just Posted

RCMP looking for grain haulers dumping grain on roadside pull-outs

Illegal practice happening on Highway 5 between Valemount and Avola

Personal Development Weekend Retreat coming up

By K.A. Pendergast Have you ever been stressed? I am sure most… Continue reading

MayDay Parade Theme is “Clearwater Life”

Parade takes place May 18 and starts at Capostinsky Park

Back in Time

Historical Perspective

Parliament Hill 4-20 organizers predict record crowd after legalization

A celebration? Yes, but organizers say concerns remain about the government’s decisions on legalization rollout

B.C. mountain biker sent home from hospital twice, despite broken vertebrae

Released in Maple Ridge to go home with three fractured vertebrae

Deck collapses in Langley during celebration, multiple people injured

Emergency responders rushed to the Langley home

B.C. RCMP receive application for Police Cat Services

RCMP announced the launch of the Police Cat Services unit as an April fools joke

Kirkland Signature veggie burgers recalled due to possible metal fragments

Recalled products came in 1.7 kg packages with a best before date of Apr. 23, 2019

Chaos at the ferry terminal for people heading from Vancouver to the Island

Easter crowds create backlog at Tsawwassen ferry terminal

Parents of 13 who tortured children get life after hearing victims

One of their daughters fled their home and pleaded for help to a 911 operator

Flooding, climate change force Quebecers to rethink relationship with water

Compensation for victims of recurring floods limit to 50% of a home’s value, or a maximum of $100,000

Storms blast South, where tornadoes threaten several states

9.7 million people in the Carolinas and Virginia at a moderate risk of severe weather

Most Read