frequency is greater than T while preserving the ranking of the frequencies although this subsampling formula was chosen heuristically we found it to work well in practice it accelerates learning and even significantly improves the accuracy of the learn vectors of the rare words as will be shown in the following sections so again something sort of arbitrary it's even it's more understandable than the 3/4 but still it's sort of arbitrary they experimented around they found this works well and then every everybody