Before revision:  Specifically, the error of our algorithm depends on the maximal number of times that a singe user holds a heavy-hitter as input, rather than the total number of times in which a heavy-hitter exists.
After revision:  Specifically, the error of our algorithm depends on the maximal number of times that a single user holds a heavy-hitter as input, rather than the total number of times in which a heavy-hitter exists.