Title
Quid pro Quo in Streaming Services: Algorithms for Cooperative Recommendations
Author
Tsigkari, D. (TU Delft Networked Systems)
Iosifidis, G. (TU Delft Networked Systems)
Spyropoulos, Thrasyvoulos (Technical University of Crete)
Date
2023
Abstract
Recommendations are employed by Content Providers (CPs) of streaming services in order to boost user engagement and their revenues. Recent works suggest that nudging recommendations towards cached items can reduce operational costs in the caching networks, e.g., Content Delivery Networks (CDNs) or edge cache providers in future wireless networks. However, cache-friendly recommendations could deviate from users' tastes, and potentially affect the CP's revenues. Motivated by real-world business models, this work identifies the misalignment of the financial goals of the CP and the caching network provider, and presents a network-economic framework for recommendations. We propose a cooperation mechanism leveraging the Nash bargaining solution that allows the two entities to jointly design the recommendation policy. We consider different problem instances that vary on the extent these entities are willing to share their cost and revenue models, and propose two cooperative policies, CCR and DCR, that allow them to make decisions in a centralized or distributed way. In both cases, our solution guarantees reaching a fair and Pareto optimal allocation of the cooperation gains. Moreover, we discuss the extension of our framework towards caching decisions. A wealth of numerical experiments in realistic scenarios show the policies lead to significant gains for both entities.
Subject
recommendations
caching
on-demand streaming services
network economics
To reference this document use:
http://resolver.tudelft.nl/uuid:fcd35e08-e9df-4879-ab9c-7b4b06f55cf1
DOI
https://doi.org/10.1109/TMC.2023.3240006
Embargo date
2024-07-29
ISSN
1536-1233
Source
IEEE Transactions on Mobile Computing, 23 (2), 1753-1768
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
journal article
Rights
© 2023 D. Tsigkari, G. Iosifidis, Thrasyvoulos Spyropoulos