Blending Sequential Embeddings, Graphs, and Engineered Features: 4th Place Solution in RecSys Challenge 2025

Fuente: arXiv
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Main Authors: Makeev, Sergei, Andreev, Alexandr, Baikalov, Vladimir, Tytskiy, Vladislav, Krasilnikov, Aleksei, Khrylchenko, Kirill
Format: Preprint
Published: 2025
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author Makeev, Sergei
Andreev, Alexandr
Baikalov, Vladimir
Tytskiy, Vladislav
Krasilnikov, Aleksei
Khrylchenko, Kirill
author_facet Makeev, Sergei
Andreev, Alexandr
Baikalov, Vladimir
Tytskiy, Vladislav
Krasilnikov, Aleksei
Khrylchenko, Kirill
contents This paper describes the 4th-place solution by team ambitious for the RecSys Challenge 2025, organized by Synerise and ACM RecSys, which focused on universal behavioral modeling. The challenge objective was to generate user embeddings effective across six diverse downstream tasks. Our solution integrates (1) a sequential encoder to capture the temporal evolution of user interests, (2) a graph neural network to enhance generalization, (3) a deep cross network to model high-order feature interactions, and (4) performance-critical feature engineering.
format Preprint
id arxiv_https___arxiv_org_abs_2508_06970
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Blending Sequential Embeddings, Graphs, and Engineered Features: 4th Place Solution in RecSys Challenge 2025
Makeev, Sergei
Andreev, Alexandr
Baikalov, Vladimir
Tytskiy, Vladislav
Krasilnikov, Aleksei
Khrylchenko, Kirill
Information Retrieval
This paper describes the 4th-place solution by team ambitious for the RecSys Challenge 2025, organized by Synerise and ACM RecSys, which focused on universal behavioral modeling. The challenge objective was to generate user embeddings effective across six diverse downstream tasks. Our solution integrates (1) a sequential encoder to capture the temporal evolution of user interests, (2) a graph neural network to enhance generalization, (3) a deep cross network to model high-order feature interactions, and (4) performance-critical feature engineering.
title Blending Sequential Embeddings, Graphs, and Engineered Features: 4th Place Solution in RecSys Challenge 2025
topic Information Retrieval
url https://arxiv.org/abs/2508.06970