SoMeR: Multi-View User Representation Learning for Social Media

Fuente: arXiv
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Main Authors: Guo, Siyi, Burghardt, Keith, Pantè, Valeria, Lerman, Kristina
Format: Preprint
Published: 2024
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author Guo, Siyi
Burghardt, Keith
Pantè, Valeria
Lerman, Kristina
author_facet Guo, Siyi
Burghardt, Keith
Pantè, Valeria
Lerman, Kristina
contents Social media user representation learning aims to capture user preferences, interests, and behaviors in low-dimensional vector representations. These representations are critical to a range of social problems, including predicting user behaviors and detecting inauthentic accounts. However, existing methods are either designed for commercial applications, or rely on specific features like text contents, activity patterns, or platform metadata, failing to holistically model user behavior across different modalities. To address these limitations, we propose SoMeR, a Social Media user Representation learning framework that incorporates temporal activities, text contents, profile information, and network interactions to learn comprehensive user portraits. SoMeR encodes user post streams as sequences of time-stamped textual features, uses transformers to embed this along with profile data, and jointly trains with link prediction and contrastive learning objectives to capture user similarity. We demonstrate SoMeR's versatility through three applications: 1) Identifying information operation driver accounts, 2) Measuring online polarization after major events, and 3) Predicting future user participation in Reddit hate communities. SoMeR provides new solutions to better understand user behavior in the socio-political domains, enabling more informed decisions and interventions.
format Preprint
id arxiv_https___arxiv_org_abs_2405_05275
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle SoMeR: Multi-View User Representation Learning for Social Media
Guo, Siyi
Burghardt, Keith
Pantè, Valeria
Lerman, Kristina
Social and Information Networks
Artificial Intelligence
Information Retrieval
Social media user representation learning aims to capture user preferences, interests, and behaviors in low-dimensional vector representations. These representations are critical to a range of social problems, including predicting user behaviors and detecting inauthentic accounts. However, existing methods are either designed for commercial applications, or rely on specific features like text contents, activity patterns, or platform metadata, failing to holistically model user behavior across different modalities. To address these limitations, we propose SoMeR, a Social Media user Representation learning framework that incorporates temporal activities, text contents, profile information, and network interactions to learn comprehensive user portraits. SoMeR encodes user post streams as sequences of time-stamped textual features, uses transformers to embed this along with profile data, and jointly trains with link prediction and contrastive learning objectives to capture user similarity. We demonstrate SoMeR's versatility through three applications: 1) Identifying information operation driver accounts, 2) Measuring online polarization after major events, and 3) Predicting future user participation in Reddit hate communities. SoMeR provides new solutions to better understand user behavior in the socio-political domains, enabling more informed decisions and interventions.
title SoMeR: Multi-View User Representation Learning for Social Media
topic Social and Information Networks
Artificial Intelligence
Information Retrieval
url https://arxiv.org/abs/2405.05275