Sushi meets AI: Japanese inventor’s app scopes out choice tuna cuts

Fins ain’t what they used to be: An AI-based Tuna Scope app judges the quality of natural tuna. (Reuters)
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Updated 04 July 2020

Sushi meets AI: Japanese inventor’s app scopes out choice tuna cuts

TOKYO: If you’ve ever bought supermarket sushi, you may know the taste trauma that hit Kazuhiro Shimura one night. But “disappointing” tuna sparked an idea: He would develop an artificial intelligence (AI) system to make sure your sashimi is always delicious.

Shimura, a director at advertising firm Dentsu Group’s Future Creative Center, came up with the concept for “Tuna Scope” AI as he chewed his raw dish while watching a television show on fish merchants who spend a decade mastering the skill of selecting high-quality tuna for sushi restaurants.

Using a deep learning algorithm to crunch through grading data from merchants, Tuna Scope has now evolved into a smartphone app. Clients can download and use it anywhere, creating “a unified grading standard” for an industry that relies on local know-how, said Shimura, who is working with Japanese trading company Sojitz Corp. to promote his technology.

“That means people can be sure they are getting delicious tuna,” Shimura told Reuters at fish merchant Misaki Megumi Suisan, which ships AI-certified tuna overseas.

The highest quality fish — which can each weigh around 300 kilos — have sold for more than $3 million in past tuna auctions. According to the Organization for the Promotion of Responsible Tuna Fisheries, around 2 million tons of tuna is consumed around the world annually, of which Japan accounts for a quarter.

Since the start of coronavirus pandemic fish merchants from the Maldives, Spain, the United States, Taiwan and elsewhere have contacted Shimura about Tuna Scope because travel curbs mean they can’t visit suppliers to check tuna quality, he said.

At Misaki Megumi near Tokyo, one of the merchant’s buyers Shingo Ishii held a smartphone with Tuna Scope over a tray of tuna tail sections on a metal tray as other workers used industrial saws to cut up frozen tuna shipped from around the world. The AI delivered a result within a few seconds.

“I think this will become a common tool over the next 10 to 20 years,” said Ishii, holding the smartphone over one of the tail sections.

Ishii admitted to mixed feelings about a technology that could make his job easier, but threatened to make a skill passed down through generations obsolete.

“To be frank, I think I can still beat the AI,” he said. 


Lebanon’s $15bn blast repair bill adds to economic misery

Updated 06 August 2020

Lebanon’s $15bn blast repair bill adds to economic misery

  • Beirut port devastation brings warnings of housing crisis and billion-dollar hit to exports, imports

BEIRUT: Lebanon could face a repair bill of up to $15 billion in the aftermath of a cataclysmic chemical blast at Beirut port, according to a top government adviser.

The explosion, which was felt as far away as Cyprus, killed at least 100 people, wounded thousands and left an additional 300,000 Beirut residents homeless. 

It is thought to have been caused by nearly three tons of ammonium nitrate, a common agricultural fertilizer, that was confiscated in 2013 and improperly stored in warehouses. But after months of economic misery, the collapse of the currency and mounting civil unrest, it is being seen as the consequence of years of neglect, financial mismanagement and corruption as across the country.

Charbel Cordahi, an economist and financial adviser to the president, estimated the cost of damages from the explosion, including compensation, at around $15 billion. 

“Up to 70 percent of Lebanon’s trade channels through the port of Beirut,” he told Arab News.

“Airports and other ports in the country can facilitate only 30-40 percent of this trade, and opening the borders with Syria can facilitate another 20 percent. This means that at least $5 billion of imports will not find their way to the country, and another $2 billion of exports will stay on ground in the coming eight months. This represents a loss of around $4 billion, or 15 percent of gross domestic product,” he said.

He added that without an international aid program, “Lebanon cannot face this disaster.”

The explosion caps months of misery for the Lebanese, nearly half of whom now live below the poverty line. Popular anger directed at the government and political classes has swelled as a wider economic crisis has been made worse by the impact of the coronavirus pandemic.

Efforts to assess the damage at Beirut port, the country’s main trade gateway, are already underway. The second priority will be to restore food security and ensure the country does not run out of wheat after grain silos were destroyed, while also making sure residents who have lost their homes are rehoused as quickly as possible. Maintaining medical supplies and mitigating the environmental impact will also be a priority for city chiefs.

Many residents of the city are unable to return to their homes, even if their buildings remain visibly intact, because of the potential structural damage caused by the 4.5 Richter-scale blast.

“We need other countries to help us reconstruct Beirut,” Gen. Mohammed Kheir, secretary general of the Higher Relief Council, told Arab News. “We would be grateful if each country rebuilt a street or neighborhood in Beirut, like they did following the 2006 Israeli aggression. That would be the best way.”

He also appealed for emergency prefab homes for families for whom the government may not be able to provide housing.

Beirut Gov. Marwan Abboud, who estimated the primary damage at $3-$5 billion, appealed to the international community and the Lebanese diaspora to help.

Health officials had told Arab News that the country was running low on medical equipment, especially items needed for major surgery, and hoped that aid from abroad would fill the gap.

It is still too early to assess the full environmental impact of the blast, but environmental expert Mostapha Raad said a potentially bigger catastrophe may have been averted when the wind carried away a toxic cloud filled with nitric acid away from land and toward open sea.

“We were afraid the ammonium nitrate residue would lead to cooling off the weather and causing acidic rain, but according to tests on air samples, the result was green and the cloud disappeared over the sea,” he said.