Ranking Across Different Content Types: The Robust Beauty of Multinomial Blending

Fuente: arXiv
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Main Authors: Lichtenberg, Jan Malte, Di Benedetto, Giuseppe, Ruffini, Matteo
Format: Preprint
Published: 2024
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author Lichtenberg, Jan Malte
Di Benedetto, Giuseppe
Ruffini, Matteo
author_facet Lichtenberg, Jan Malte
Di Benedetto, Giuseppe
Ruffini, Matteo
contents An increasing number of media streaming services have expanded their offerings to include entities of multiple content types. For instance, audio streaming services that started by offering music only, now also offer podcasts, merchandise items, and videos. Ranking items across different content types into a single slate poses a significant challenge for traditional learning-to-rank (LTR) algorithms due to differing user engagement patterns for different content types. We explore a simple method for cross-content-type ranking, called multinomial blending (MB), which can be used in conjunction with most existing LTR algorithms. We compare MB to existing baselines not only in terms of ranking quality but also from other industry-relevant perspectives such as interpretability, ease-of-use, and stability in dynamic environments with changing user behavior and ranking model retraining. Finally, we report the results of an A/B test from an Amazon Music ranking use-case.
format Preprint
id arxiv_https___arxiv_org_abs_2408_09168
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Ranking Across Different Content Types: The Robust Beauty of Multinomial Blending
Lichtenberg, Jan Malte
Di Benedetto, Giuseppe
Ruffini, Matteo
Information Retrieval
Artificial Intelligence
Machine Learning
An increasing number of media streaming services have expanded their offerings to include entities of multiple content types. For instance, audio streaming services that started by offering music only, now also offer podcasts, merchandise items, and videos. Ranking items across different content types into a single slate poses a significant challenge for traditional learning-to-rank (LTR) algorithms due to differing user engagement patterns for different content types. We explore a simple method for cross-content-type ranking, called multinomial blending (MB), which can be used in conjunction with most existing LTR algorithms. We compare MB to existing baselines not only in terms of ranking quality but also from other industry-relevant perspectives such as interpretability, ease-of-use, and stability in dynamic environments with changing user behavior and ranking model retraining. Finally, we report the results of an A/B test from an Amazon Music ranking use-case.
title Ranking Across Different Content Types: The Robust Beauty of Multinomial Blending
topic Information Retrieval
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2408.09168