Comments on the proof of adaptive submodular function minimization
Machine Learning
2017-05-11 v1 Machine Learning
Abstract
We point out an issue with Theorem 5 appearing in "Group-based active query selection for rapid diagnosis in time-critical situations". Theorem 5 bounds the expected number of queries for a greedy algorithm to identify the class of an item within a constant factor of optimal. The Theorem is based on correctness of a result on minimization of adaptive submodular functions. We present an example that shows that a critical step in Theorem A.11 of "Adaptive Submodularity: Theory and Applications in Active Learning and Stochastic Optimization" is incorrect.
Cite
@article{arxiv.1705.03771,
title = {Comments on the proof of adaptive submodular function minimization},
author = {Feng Nan and Venkatesh Saligrama},
journal= {arXiv preprint arXiv:1705.03771},
year = {2017}
}