TY - GEN
T1 - Choosing, agreeing, and eliminating in communication complexity
AU - Beimel, Amos
AU - Ben Daniel, Sebastian
AU - Kushilevitz, Eyal
AU - Weinreb, Enav
PY - 2010/8/12
Y1 - 2010/8/12
N2 - We consider several questions inspired by the direct-sum problem in (two-party) communication complexity. In all questions, there are k fixed Boolean functions f1,...,fk and Alice and Bob have k inputs x1,...,xk and y1,...,yk , respectively. In the eliminate problem, Alice and Bob should output a vector σ1,...,σk such that fi (x i ) ≠ σi for at least one i (i.e., their goal is to eliminate one of the 2k output vectors); in choose, Alice and Bob should return (i,fi (xi, yi )) and in agree they should return fi (xi, yi ), for some i. The question, in each of the three cases, is whether one can do better than solving one (say, the first) instance. We study these three problems and prove various positive and negative results.
AB - We consider several questions inspired by the direct-sum problem in (two-party) communication complexity. In all questions, there are k fixed Boolean functions f1,...,fk and Alice and Bob have k inputs x1,...,xk and y1,...,yk , respectively. In the eliminate problem, Alice and Bob should output a vector σ1,...,σk such that fi (x i ) ≠ σi for at least one i (i.e., their goal is to eliminate one of the 2k output vectors); in choose, Alice and Bob should return (i,fi (xi, yi )) and in agree they should return fi (xi, yi ), for some i. The question, in each of the three cases, is whether one can do better than solving one (say, the first) instance. We study these three problems and prove various positive and negative results.
UR - http://www.scopus.com/inward/record.url?scp=77955316454&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-14165-2_39
DO - 10.1007/978-3-642-14165-2_39
M3 - Conference contribution
AN - SCOPUS:77955316454
SN - 3642141641
SN - 9783642141645
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 451
EP - 462
BT - Automata, Languages and Programming - 37th International Colloquium, ICALP 2010, Proceedings
T2 - 37th International Colloquium on Automata, Languages and Programming, ICALP 2010
Y2 - 6 July 2010 through 10 July 2010
ER -