Cell-probe lower bounds from online communication complexity
Cell-probe lower bounds from online communication complexity
复制标题
在线通信复杂性的细胞探针下限
DOI:
10.1145/3188745.3188862
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Yu, Huacheng
中科院分区:
文献类型:
--
作者:
Alman, Josh;Wang, Joshua R.;Yu, Huacheng
In this work, we introduce an online model for communication complexity. Analogous to how online algorithms receive their input piece-by-piece, our model presents one of the players, Bob, his input piece-by-piece, and has the players Alice and Bob cooperate to compute a result each time before the next piece is revealed to Bob. This model has a closer and more natural correspondence to dynamic data structures than classic communication models do, and hence presents a new perspective on data structures.We first present a tight lower bound for theonline set intersectionproblem in the online communication model, demonstrating a general approach for proving online communication lower bounds. The online communication model prevents a batching trick that classic communication complexity allows, and yields a stronger lower bound. We then apply the online communication model to prove data structure lower bounds for two dynamic data structure problems: the Group Range problem and the Dynamic Connectivity problem for forests. Both of the problems admit a worst caseO(logn)-time data structure. Using online communication complexity, we prove a tight cell-probe lower bound for each: spendingo(logn) (even amortized) time per operation results in at best an exp(−δ2n) probability of correctly answering a (1/2+δ)-fraction of thenqueries.
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DOI:
10.1109/focs.2015.71
发表时间:
2015-04
期刊:
2015 IEEE 56th Annual Symposium on Foundations of Computer Science
影响因子:
--
作者:
R. Clifford;A. Jørgensen;Kasper Green Larsen
通讯作者:
R. Clifford;A. Jørgensen;Kasper Green Larsen
DOI:
10.1145/2897518.2897556
发表时间:
2015
期刊:
Proceedings of the forty-eighth annual ACM symposium on Theory of Computing
影响因子:
--
作者:
Huacheng Yu
通讯作者:
Huacheng Yu
DOI:
10.1145/320211.320215
发表时间:
1999-07
期刊:
J. ACM
影响因子:
--
作者:
Monika Henzinger;Valerie King
通讯作者:
Monika Henzinger;Valerie King
DOI:
10.1145/335305.335345
发表时间:
2000-05
期刊:
--
影响因子:
--
作者:
M. Thorup
通讯作者:
M. Thorup
DOI:
10.1109/sfcs.1993.366840
发表时间:
1993
期刊:
Proceedings of 1993 IEEE 34th Annual Foundations of Computer Science
影响因子:
--
作者:
G. Frandsen;Peter Bro Miltersen;Sven Skyum
通讯作者:
Sven Skyum