Title
Two new results about quantum exact learning.
Abstract
We present two new results about exact learning by quantum computers. First, we show how to exactly learn a $k$-Fourier-sparse $n$-bit Boolean function from $O(k^{1.5}(log k)^2)$ uniform quantum examples for that function. This improves over the bound of $widetilde{Theta}(kn)$ uniformly random classical examples (Haviv and Regev, CCCu002715). Our main tool is an improvement of Changu0027s lemma for the special case of sparse functions. Second, we show that if a concept class $mathcal{C}$ can be exactly learned using $Q$ quantum membership queries, then it can also be learned using $Oleft(frac{Q^2}{log Q}log|mathcal{C}|right)$ classical membership queries. This improves the previous-best simulation result (Servedio and Gortler, SICOMPu002704) by a $log Q$-factor.
Year
Venue
Field
2018
arXiv: Quantum Physics
Boolean function,Discrete mathematics,Quantum,Concept class,Quantum computer,Mathematics,Lemma (mathematics),Special case
DocType
Volume
Citations 
Journal
abs/1810.00481
2
PageRank 
References 
Authors
0.36
16
4
Name
Order
Citations
PageRank
Srinivasan Arunachalam1405.96
Sourav Chakraborty238149.27
Troy Lee327628.96
Ronald de Wolf414412.34