Ho-Leung Chan, Tak Wah Lam, Lap-Kei Lee, Hing-Fung Ting. Approximating Frequent Items in Asynchronous Data Stream over a Sliding Window. In Evripidis Bampis, Klaus Jansen, editors, Approximation and Online Algorithms, 7th International Workshop, WAOA 2009, Copenhagen, Denmark, September 10-11, 2009. Revised Papers. Volume 5893 of Lecture Notes in Computer Science, pages 49-61, Springer, 2009. [doi]
Abstract is missing.