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Testing Probability Distributions Underlying Aggregated Data

Author(s)
Canonne, Clement; Rubinfeld, Ronitt
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Abstract
In this paper, we analyze and study a hybrid model for testing and learning probability distributions. Here, in addition to samples, the testing algorithm is provided with one of two different types of oracles to the unknown distribution D over [n]. More precisely, we consider both the dual and cumulative dual access models, in which the algorithm A can both sample from D and respectively, for any i ∈ [n], query the probability mass D(i) (query access); or get the total mass of {1,…,i}, i.e. ∑[i over j=1] D(j) (cumulative access) In these two models, we bypass the strong lower bounds established in both of the previously studied sampling and query oracle settings for a number of problems, giving constant-query algorithms for most of them. Finally, we show that while the testing algorithms can be in most cases strictly more efficient, some tasks remain hard even with this additional power.
Date issued
2014
URI
http://hdl.handle.net/1721.1/101001
Department
Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
Automata, Languages, and Programming
Publisher
Springer-Verlag
Citation
Canonne, Clement, and Ronitt Rubinfeld. “Testing Probability Distributions Underlying Aggregated Data.” Lecture Notes in Computer Science (2014): 283–295.
Version: Original manuscript
ISBN
978-3-662-43947-0
978-3-662-43948-7
ISSN
0302-9743
1611-3349

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