Contest To Manipulate Online Ratings

Scam artists can manipulate product ratings online. Now researchers are having a contest to test a program to find the best ways to manipulate ratings--and thus defend against them. At www.etanlab.com/rating

Illustration of a Bohr atom model spinning around the words Science Quickly with various science and medicine related icons around the text

Join Our Community of Science Lovers!


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.



If you like online shopping…and you love a good scam…then we’ve found the contest for you. Scientists at the University of Rhode Island are offering $1000 to the person or persons who can most wildly manipulate a set of online product ratings.

Many websites encourage consumers to rate the items they’ve purchased. Shoppers then use this information to help them decide what to buy. Unfortunately, such systems are easy prey for shills looking to make certain products seem more attractive. For example, an unscrupulous author could get all his family and friends to give his book five stars.

The Rhode Island researchers have whipped up an algorithm for identifying such fraudulent ratings. Now they’re putting their program to the test.  Which is where the contest comes in. To participate, go to “www.etanlab.com/rating” and download their data set. Then start manipulating. The individuals who introduce the largest bias will take home the prize...and will show the scientists how they can make their fraudbusting program even better.  It’s fun for the whole family. I give it four thumbs up.  Ah, what the heck, eight thumbs up!

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe