Skip to content
AI Atlas
PaperActive

On the Regularization Landscape for the Linear Recommendation Models

arxiv.org/abs/2609.11876

quality89

Updated 56 min ago · first seen 12 Sept 2026

paper_01M29X34QTN627KS9SA8JKECNF

Published
12 Sept 2026
T1 · 56 min ago
arXiv
2609.11876
T1 · 56 min ago
Category
cs.AI
T1 · 56 min ago

Abstract

Recently, a wide range of recommendation algorithms inspired by deep learning techniques have emerged as the performance leaders on several standard recommendation benchmarks. While these algorithms were built on different DL techniques (e.g., dropouts, autoencoder), they have similar performance and even similar cost functions. This paper studies whether the models' comparable performance are sheer coincidence, or they can be unified under a single framework. We find that all linear performance leaders effectively add only a nuclear-norm based regularizer, or a Frobenius-norm based regularizer. The former ones possess a (surprising) rigid structure that limits the models' predictive power but their solutions are low rank and have closed form. The latter ones are more expressive and more efficient for recommendation but their solutions are either full-rank or require executing hard-to-tune numeric procedures such as ADMM. Along this line of finding, we further propose two low-rank, closed-form solutions, derived from carefully generalizing Frobenius-norm based regularizers. The new solutions get the best of both nuclear-norm and Frobenius-norm world.

Authors 7

Bin Ren, Dong Li, Hao Zhou, Jing Gao, Ruoming Jin, Zhenming Liu, Zhi Liu

Specification

Official page

Source:arXiv (Atom API + RSS)T1observed 56 min agohigh

Arxiv announce type
new

Source:arXiv (Atom API + RSS)T1observed 56 min agohigh

arXiv id
2609.11876

Source:arXiv (Atom API + RSS)T1observed 56 min agohigh

Categories
cs.AI

Source:arXiv (Atom API + RSS)T1observed 56 min agohigh

PDF

Source:arXiv (Atom API + RSS)T1observed 56 min agohigh

Primary category
cs.AI

Source:arXiv (Atom API + RSS)T1observed 56 min agohigh

Published
12 Sept 2026

Source:arXiv (Atom API + RSS)T1observed 56 min agohigh

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

9

Source tiers

T19

Freshest observation

56 min ago

Conflicts

None