@InProceedings{chou_et_al:LIPIcs.APPROX-RANDOM.2019.2, author = {Chou, Chi-Ning and Lei, Zhixian and Nakkiran, Preetum}, title = {{Tracking the l\underline2 Norm with Constant Update Time}}, booktitle = {Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2019)}, pages = {2:1--2:15}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-125-2}, ISSN = {1868-8969}, year = {2019}, volume = {145}, editor = {Achlioptas, Dimitris and V\'{e}gh, L\'{a}szl\'{o} A.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.APPROX-RANDOM.2019.2}, URN = {urn:nbn:de:0030-drops-112175}, doi = {10.4230/LIPIcs.APPROX-RANDOM.2019.2}, annote = {Keywords: Streaming algorithms, Sketching algorithms, Tracking, CountSketch} }