Synchronizing Rankings via Interactive Communication
Information Theory
2014-02-13 v2 math.IT
Abstract
We consider the problem of exact synchronization of two rankings at remote locations connected by a two-way channel. Such synchronization problems arise when items in the data are distinguishable, as is the case for playlists, tasklists, crowdvotes and recommender systems rankings. Our model accounts for different constraints on the communication throughput of the forward and feedback links, resulting in different anchoring, syndrome and checksum computation strategies. Information editing is assumed of the form of deletions, insertions, block deletions/insertions, translocations and transpositions. The protocols developed under the given model are order-optimal with respect to genie aided lower bounds.
Cite
@article{arxiv.1401.8022,
title = {Synchronizing Rankings via Interactive Communication},
author = {Lili Su and Olgica Milenkovic},
journal= {arXiv preprint arXiv:1401.8022},
year = {2014}
}