47 citations · 58 across the 2 of their papers we have counts for
2 papers
cs.SI2012★ 11 cited
The warm-start bias of Yelp ratings
Michalis Potamias
Yelp ratings are often viewed as a reputation metric for local businesses. In this paper we study how Yelp ratings evolve over time. Our main finding is that on average the first r…
cs.SI2011★ 47 cited
A Month in the Life of Groupon
John W. Byers, Michael Mitzenmacher, Michalis Potamias +1
Groupon has become the latest Internet sensation, providing daily deals to customers in the form of discount offers for restaurants, ticketed events, appliances, services, and othe…