Albert Einstein was born in UIm, Germany on March 14, 1879. As a child, Einstein revealed an extraordinary     1    for understanding the mysteries of science. A typical child, Einstein took music lessons, playing both the violin and piano—a passion that followed him into adulthood. Moving first to Italy and then to Switzerland, the young    2    graduated from high school in 1896.

In 1905, while    3    as a patent clerk in Bern, Switzerland, Einstein had what came to be known as his "Annus Mirabilis"—or "miracle year". It was during this time that the young physicist obtained his Doctorate degree and published four of his most    4    research papers, including the Special Theory of Relativity. In that, the now world-famous equation "e=mc²" unlocked mysteries of the    5    theretofore unknown.

Ten years later, in 1915, Einstein completed his General Theory of Relativity and in 1921 he was    6    the Nobel Prize in Physics. It also won him international    7    and his name became a household word synonymous with talent all over the world.

Einstein moved abroad to the United States in the autumn of 1933 and    8    in Princeton, New Jersey as a professor at the prestigious Institute for Advanced Study.

Today, the practical applications of Einstein's    9    include the development of the television, remote control devices, automatic door openers, lasers, and DVD players. Recognized as TIME magazine's "Person of the Century" in 1999, Einstein's    10    , coupled with his strong passion for social justice and dedication to love of peace, left the world with infinite knowledge and pioneering moral leadership.

AI can distinguish between bots and humans based on Twitter activity

Artificial intelligence is being used to spot the difference between human users and fake accounts on Twitter.

Emilio Ferrara at the University of Southern California in the US, and his colleagues have trained an AI to detect bots on Twitter based on differences in     1     of activity between real and fake accounts.

The team analysed two separate datasets of Twitter users, which had been classified either manually or by a pre-existing algorithm as either bot or human.

The manually verified dataset     2     of 8.4 million tweets from 3500 human accounts, and 3.4 million tweets from 5000 bots.

The researchers found that human users replied four to five times more often to other tweets than bots did. Real users gradually become more interactive, with the fraction of replies increasing over the course of an hour-long session of Twitter use.

The length of tweets by human users also decreased as sessions     3    . “The amount of information that is exchanged diminishes,” says Ferrara. He believes that the change may result from a cognitive depletion over time, in which people become less likely to expend mental effort    4     original content.

Bots, on the other hand, show no changes in their interactivity or the length of information they tweet over time.

The team also analysed the amount of time between any two consecutive (连读的) tweets from a single user. When this     5     is plotted, bots showed spikes for certain time gaps, such as tweeting at 30-minute or 60-minute intervals.

The team then combined these     6     to train an existing bot-detection algorithm, called Botometer, on the difference in activity patterns. The AI was     7     more likely to accurately detect to fake accounts than when it was not taking into     8     the timing of posts.

The algorithm could be used to     9     other bot-detection tools that analyse the language within posts, says Ferrara.

One of the study’s     10     is that the Twitter data the team analysed is from three years ago. In that time, it’s possible that bots have become more human-like in their activity patterns.

ZOOOOM! A delivery man drives super fast past us, giving us a sudden, heart-stopping     1     . Over the past few years, delivery drivers have been    2     , fined, and even arrested for breaking traffic laws across China. Delivery drivers often     3     red lights, take no notice of speed limits, and pay little attention to pedestrian crossings. But they also often pay the ultimate     4     . Each year, it seems like     5     injuries involving delivery drivers are increasing. However, given that delivery drivers are, generally speaking, poorly paid, how much blame do they really deserve for running against the clock?

Well, it turns out to be a complicated issue. Recently, an article titled “Delivery Drivers Stuck in the System” was     6     widely on social media. According to the article, competition between delivery services Ele. me and Meituan has caused each app to take increasingly extreme     7     to outdo (超过) the other. Over time, the platforms have only increased the pressure on drivers. As a result, drivers find themselves facing a difficult choice: break traffic laws or, in some cases, lose hundreds of yuan in earnings for late deliveries.

According to surveys online, few care much whether their deliveries are a few minutes late, with most believing that it is not worth risking someone’s life for. In response, Ele. me and Meituan have added a combination of features to extend delivery times for slow elevators or bad weather    8     Although these new features cannot solve the underlying problems of intense competition or the dangers of driving, they should, in some way,     9     some of the pressure on drivers. In the meantime, as consumers, we can help to make life for delivery riders safer and easier. For example, be a     10     person and care more about them. After all, they are putting their lives on the line just to deliver our food.