Google's PageRank Works Like Our Brains

from the what's-your-brainrank? dept

We've joked in the past about how Google effectively acts as a a secondary or "backup" brain for many people. However, perhaps it wasn't so much of a joke. New research on how human memory and recall works suggests that the process is quite similar to Google's PageRank in determining what things are more important and should be recalled first. Basically, Google's PageRank looks at "popularity," not just in terms of how many links a site gets, but also in terms of how popular those links are. Thus, if you get linked from a more popular site, that's more valuable than getting linked by a bunch of non-popular sites. It turns out that the brain does something similar in linking concepts, judging not just the popularity, but the popularity of the concepts linked to the concepts. In fact, using Google's PageRank turned out to be a better predictor of how a brain would prioritize words than more commonly known methods.

This could be an interesting finding for the artificial intelligence community. After all, many in the AI community have been trying to figure out how to make computers act more like human brains for years, and various brute force methods haven't worked all that well. Obviously, the AI world has worked on various neural net research for quite some time, but it's nice to see at least some confirmation from the psychology side concerning a way to match up brains and algorithms. A couple years ago, we noted that intelligence was often correlated to people who knew what to forget rather than trying to remember everything. What that really shows is that good brains are better at prioritizing and ranking the importance of something -- and that's exactly what PageRank is intended to do. So, now, we just need Larry Page to get back from his honeymoon and get to work on BrainRank. Or would that be PageBrain? Of course, it's also worth noting that with the rise of search engine spamming, rumor has it that Google doesn't use PageRank that much any more. Perhaps that just means that our brains are vulnerable to concept spamming as well...

Filed Under: brains, memory, pagerank, psychology, recall
Companies: google

Chinese Authorities Start To Understand That 'Internet Addiction' Is A Sign Of Deeper Issues

from the put-the-shock-treatment-away dept

Chinese authorities have long viewed "internet addiction" as a real problem for the country's youth, even though some research says that in and of itself, internet addiction isn't really a clinical disorder. The government classifies 13 percent of the country's 20 million internet users under 20 as addicts, and it's tried some radical approaches to "curing" them, such as shock therapy and detox units with electric acupuncture and drugs. It's also tried some other, less invasive, ways to get kids offline, by limiting net cafes and forcing game companies to cut back the points games award after certain periods of time. The problem with all of these methods, though, is that they only seek to stop people from spending a lot of time online; they don't attempt to do anything about the underlying reasons and problems causing them to want to do so. When a halfway house for young internet addicts was opened in China, their first visitor was a 17-year-old with some problems at home, so he talked to a psychologist and the house's staff went to his house to talk with him and his parents. It seemed like the kid was going online as a means of avoiding or dealing with the issues in his home life, and fixing those issues is where the focus should be, not on trying to keep him offline through aversion therapy. It now looks like this message might be starting to sink in, as word comes that authorities in China are opening an experimental summer camp for 40 supposedly net-addicted kids, where they'll be treated for depression and other underlying issues that could be prompting them to spend inordinate amounts of time online. So-called internet addiction, in many cases, isn't an ailment, but just a symptom of some deeper problem. Working to solve that problem is the real solution, rather than the band-aid approach of "curing" the addiction.

Filed Under: china, internet addiction, psychology