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With great power comes great responsibility

As Zomato became the go-to app for foodies around the world last year, we began to see a rise in biased content on our platform – most of this appeared to come in from various social media agencies. Meanwhile, a lot of users had also taken to writing reviews that weren’t particularly constructive, in a bid to climb the Leaderboards in their respective cities.
All ratings on our site are governed by user activity, so ensuring that these are generated by fair and neutral user inputs is of paramount importance to us.

Our first big step towards countering these reviews and ratings was Project Warp – a complete overhaul of our ratings algorithm along with a few other essential bias checks being put into place. Here’s the long and short of what we did and how it helped -

• User credibility scores were updated. This helped us more accurately predict individual “bias” in reviews.
• The recency of reviews matters a whole lot more now, and prevents restaurant ratings from being drastically affected by very old reviews.
• Reviews that have been moderated for policy violations such as abuse or plagiarism automatically carry less weight.

We have a detailed blog post, with a full breakdown of how Project Warp works. You can read it here.

https://www.zomato.com/users/ravi-kant-38077187