How AI will change the way government works By Bob Osborn Sep 26, For many people, artificial intelligence conjures up images of sci-fi movies and the future. They see it as a threat to their jobs and sometimes even their safety, but AI represents the biggest leap forward in terms of work productivity since the personal computer — and few other industries can benefit from AI as much as government.
The rare form of machine learning that can spot hackers who have already broken in Match. A new wave of dating websites, such as OKCupid, emerged in the early s. And the arrival of Tinder changed dating even further.
Today, more than one-third of marriages start online. Clearly, these sites have had a huge impact on dating behavior.
But now the first evidence is emerging that their effect is much more profound. The way people meet their partners has changed dramatically in recent years For more than 50 years, researchers have studied the nature of the networks that link people to each other.
These social networks turn out to have a peculiar property. One obvious type of network links each node with its nearest neighbors, in a pattern like a chess board or chicken wire. Another obvious kind of network links nodes at random. But real social networks are not like either of these.
Instead, people are strongly connected to a relatively small group of neighbors and loosely connected to much more distant people. These loose connections turn out to be extremely important. Loose ties have traditionally played a key role in meeting partners.
While most people were unlikely to date one of their best friends, they were highly likely to date people who were linked with their group of friends; a friend of a friend, for example. Indeed, this has long been reflected in surveys of the way people meet their partners: Online dating has changed that.
Today, online dating is the second most common way for heterosexual couples to meet. For homosexual couples, it is far and away the most popular. That has significant implications.
And when people meet in this way, it sets up social links that were previously nonexistent. The question that Ortega and Hergovich investigate is how this changes the racial diversity of society.
The researchers start by simulating what happens when extra links are introduced into a social network. Their network consists of men and women from different races who are randomly distributed.
In this model, everyone wants to marry a person of the opposite sex but can only marry someone with whom a connection exists.
This leads to a society with a relatively low level of interracial marriage. But if the researchers add random links between people from different ethnic groups, the level of interracial marriage changes dramatically. And there is another surprising effect. The team measure the strength of marriages by measuring the average distance between partners before and after the introduction of online dating.Get the latest science news and technology news, read tech reviews and more at ABC News.
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