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How Indeed uses AI to find people jobs

The robots are coming for your jobs, experts say. But no matter if you’re a Luddite or an engineer at Microsoft, as the AI age threatens the livelihood of many, services like Indeed that help people find work may be the kind of AI everyone can agree on.

Indeed VP Raj Mukherjee said one big improvement fueled by AI has been analysis of job descriptions and applicant resumes with natural language processing (NLP) to better match candidates with the sorts of jobs they’re qualified to do.

“You’ll certainly start to figure out what are the core requirements of this job, so when I’m a job seeker, when I look at a job description it may say ‘Your resume is a match,’” he said.

This application of NLP has increased the amount of employers responding back to job applicants 10 percent across all industries and 15 percent in tech, Mukherjee said at VB Summit.

Other ways AI shapes job searches on Indeed include the personalized results a job seeker sees when they get an email or search the site, and regression techniques used to ferret out fraudulent job applications.

AI was also used to predict salary price ranges for job applicants, but this service was nixed after employers said the Indeed prediction was actually below what they were willing to pay.

“That’s an example of a misstep, and a great learning for us,” Mukherjee said. Indeed has stopped serving up salary predictions for some jobs today, but continues its work in this area using 450 million salary data points collected from former employees and job descriptions.

In the future, Indeed may use AI as a way to get more people to in-person job fairs, Mukherjee said, and invest more in exploration of sentiment analysis NLP to get an idea of how happy employees are as a Google engineer or Walmart cashier.

Data for sentiment analysis will come from 15 million reviews of companies by former employees.

Interviewed, a Y Combinator graduate acquired by Indeed in August, will also assist in future efforts by the company to use conversational AI to better match job applicants with hiring managers, in order to give managers more time to build relationships with qualified applicants and give applicants more relevant results.

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Existing EV batteries could be recharged five times faster

Lithium-ion batteries have massively improved in the last half-decade, but there are still issues. The biggest, especially for EVs, is that charging takes too long to make them as useful as regular cars for highway driving. Researchers from the University of Warwick (WMG) have discovered that we may not need to be so patient, though. They developed a new type of sensor that measures internal battery temperatures and discovered that we can probably recharge them up to five times quicker without overheating problems.

Overcharging a lithium-ion battery anode can lead to lithium buildup, which can break through a battery's separator, create a short-circuit and cause catastrophic failure. That can cause the electrolyte to emit gases and literally blow up the battery, so manufacturers impose strict charging power limits to prevent it.

Those limits are based on hard-to-measure internal temperatures, however, which is where the WMG probe comes in. It's a fiber optic sensor, protected by a chemical layer that can be directly inserted into a lithium-ion cell to give highly precise thermal measurements without affecting its performance.

The team tested the sensor on standard 18650 li-ion cells, used in Tesla's Model S and X, among other EVs. They discovered that they can be charged five times faster than previously thought without damage. Such speeds would reduce battery life, but if used judiciously, the impact would be minimized, said lead researcher Dr. Tazdin Amietszajew.

Faster charging as always comes at the expense of overall battery life but many consumers would welcome the ability to charge a vehicle battery quickly when short journey times are required and then to switch to standard charge periods at other times.

There's still some work to do. While the research showed the li-ion cells can support higher temperatures, EVs and charging systems would have to have "precisely tuned profiles/limits" to prevent problems. It's also not clear how battery makers would install the sensors in the cells.

Nevertheless, it shows a lot of promise for much faster charging speeds in the near future. Even if battery capacities stayed the same, charging in 5 minutes instead of 25 could flip a lot of drivers over to the green side.

Via: Clean Technica

Source: University of Warwick