Ling, Yibei, Mi, Jie. (2004). An optimal trade-off between content freshness and refresh cost
.
JOURNAL OF APPLIED PROBABILITY, 41(3), 721-734. 10.1017/s0021900200020507
Ling, Yibei, Mi, Jie. (2004). An optimal trade-off between content freshness and refresh cost
. JOURNAL OF APPLIED PROBABILITY, 41(3), 721-734. 10.1017/s0021900200020507