Entity Representation Learning Through Onsite-Offsite Graph for Pinterest Ads

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Auteurs principaux: Jin, Jiayin, Pan, Zhimeng, Tang, Yang, Feng, Jiarui, Li, Kungang, Xiang, Chongyuan, Li, Jiacheng, Su, Runze, Ji, Siping, Sun, Han, Leng, Ling, Deshikachar, Prathibha
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Publié: 2025
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author Jin, Jiayin
Pan, Zhimeng
Tang, Yang
Feng, Jiarui
Li, Kungang
Xiang, Chongyuan
Li, Jiacheng
Su, Runze
Ji, Siping
Sun, Han
Leng, Ling
Deshikachar, Prathibha
author_facet Jin, Jiayin
Pan, Zhimeng
Tang, Yang
Feng, Jiarui
Li, Kungang
Xiang, Chongyuan
Li, Jiacheng
Su, Runze
Ji, Siping
Sun, Han
Leng, Ling
Deshikachar, Prathibha
contents Graph Neural Networks (GNN) have been extensively applied to industry recommendation systems, as seen in models like GraphSage\cite{GraphSage}, TwHIM\cite{TwHIM}, LiGNN\cite{LiGNN} etc. In these works, graphs were constructed based on users' activities on the platforms, and various graph models were developed to effectively learn node embeddings. In addition to users' onsite activities, their offsite conversions are crucial for Ads models to capture their shopping interest. To better leverage offsite conversion data and explore the connection between onsite and offsite activities, we constructed a large-scale heterogeneous graph based on users' onsite ad interactions and opt-in offsite conversion activities. Furthermore, we introduced TransRA (TransR\cite{TransR} with Anchors), a novel Knowledge Graph Embedding (KGE) model, to more efficiently integrate graph embeddings into Ads ranking models. However, our Ads ranking models initially struggled to directly incorporate Knowledge Graph Embeddings (KGE), and only modest gains were observed during offline experiments. To address this challenge, we employed the Large ID Embedding Table technique and innovated an attention based KGE finetuning approach within the Ads ranking models. As a result, we observed a significant AUC lift in Click-Through Rate (CTR) and Conversion Rate (CVR) prediction models. Moreover, this framework has been deployed in Pinterest's Ads Engagement Model and contributed to $2.69\%$ CTR lift and $1.34\%$ CPC reduction. We believe the techniques presented in this paper can be leveraged by other large-scale industrial models.
format Preprint
id arxiv_https___arxiv_org_abs_2508_02609
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Entity Representation Learning Through Onsite-Offsite Graph for Pinterest Ads
Jin, Jiayin
Pan, Zhimeng
Tang, Yang
Feng, Jiarui
Li, Kungang
Xiang, Chongyuan
Li, Jiacheng
Su, Runze
Ji, Siping
Sun, Han
Leng, Ling
Deshikachar, Prathibha
Machine Learning
Artificial Intelligence
Software Engineering
Graph Neural Networks (GNN) have been extensively applied to industry recommendation systems, as seen in models like GraphSage\cite{GraphSage}, TwHIM\cite{TwHIM}, LiGNN\cite{LiGNN} etc. In these works, graphs were constructed based on users' activities on the platforms, and various graph models were developed to effectively learn node embeddings. In addition to users' onsite activities, their offsite conversions are crucial for Ads models to capture their shopping interest. To better leverage offsite conversion data and explore the connection between onsite and offsite activities, we constructed a large-scale heterogeneous graph based on users' onsite ad interactions and opt-in offsite conversion activities. Furthermore, we introduced TransRA (TransR\cite{TransR} with Anchors), a novel Knowledge Graph Embedding (KGE) model, to more efficiently integrate graph embeddings into Ads ranking models. However, our Ads ranking models initially struggled to directly incorporate Knowledge Graph Embeddings (KGE), and only modest gains were observed during offline experiments. To address this challenge, we employed the Large ID Embedding Table technique and innovated an attention based KGE finetuning approach within the Ads ranking models. As a result, we observed a significant AUC lift in Click-Through Rate (CTR) and Conversion Rate (CVR) prediction models. Moreover, this framework has been deployed in Pinterest's Ads Engagement Model and contributed to $2.69\%$ CTR lift and $1.34\%$ CPC reduction. We believe the techniques presented in this paper can be leveraged by other large-scale industrial models.
title Entity Representation Learning Through Onsite-Offsite Graph for Pinterest Ads
topic Machine Learning
Artificial Intelligence
Software Engineering
url https://arxiv.org/abs/2508.02609