activity
20242026
most citedSPAR: Personalized Content-Based Recommendation via Long Engagement Attention

1 citations · 1 across the 11 of their papers we have counts for

collaborators

11 papers

cs.CL2026

HorizonBench: Long-Horizon Personalization with Evolving Preferences

Shuyue Stella Li, Bhargavi Paranjape, Kerem Oktar +9

User preferences evolve across months of interaction, and tracking them requires inferring when a stated preference has been changed by a subsequent life event. We define this prob…

cs.LG2026

Feed m Birds with One Scone: Accelerating Multi-task Gradient Balancing via Bi-level Optimization

Xuxing Chen, Yun He, Jiayi Xu +9

In machine learning, the goal of multi-task learning (MTL) is to optimize multiple objectives together. Recent works, for example, Multiple Gradient Descent Algorithm (MGDA) and it…

cs.CL2026

CharacterFlywheel: Scaling Iterative Improvement of Engaging and Steerable LLMs in Production

Yixin Nie, Lin Guan, Zhongyao Ma +19

This report presents CharacterFlywheel, an iterative flywheel process for improving large language models (LLMs) in production social chat applications across Instagram, WhatsApp,…

cs.IR2025

Beyond Self-Consistency: Loss-Balanced Perturbation-Based Regularization Improves Industrial-Scale Ads Ranking

Ilqar Ramazanli, Hamid Eghbalzadeh, Xiaoyi Liu +6

Perturbation-based regularization techniques address many challenges in industrial-scale large models, particularly with sparse labels, and emphasize consistency and invariance for…

cs.LG2025

A Unified Knowledge-Distillation and Semi-Supervised Learning Framework to Improve Industrial Ads Delivery Systems

Hamid Eghbalzadeh, Yang Wang, Rui Li +9

Industrial ads ranking systems conventionally rely on labeled impression data, which leads to challenges such as overfitting, slower incremental gain from model scaling, and biases…

cs.IR2024

Unifying Generative and Dense Retrieval for Sequential Recommendation

Liu Yang, Fabian Paischer, Kaveh Hassani +11

Sequential dense retrieval models utilize advanced sequence learning techniques to compute item and user representations, which are then used to rank relevant items for a user thro…

cs.IR2024

Preference Discerning with LLM-Enhanced Generative Retrieval

Fabian Paischer, Liu Yang, Linfeng Liu +12

In sequential recommendation, models recommend items based on user's interaction history. To this end, current models usually incorporate information such as item descriptions and…

cs.LG2024

APOLLO: SGD-like Memory, AdamW-level Performance

Hanqing Zhu, Zhenyu Zhang, Wenyan Cong +7

Large language models (LLMs) are notoriously memory-intensive during training, particularly with the popular AdamW optimizer. This memory burden necessitates using more or higher-e…

cs.IR2024

MultiBalance: Multi-Objective Gradient Balancing in Industrial-Scale Multi-Task Recommendation System

Yun He, Xuxing Chen, Jiayi Xu +11

In industrial recommendation systems, multi-task learning (learning multiple tasks simultaneously on a single model) is a predominant approach to save training/serving resources an…

cs.IR2024

EmbSum: Leveraging the Summarization Capabilities of Large Language Models for Content-Based Recommendations

Chiyu Zhang, Yifei Sun, Minghao Wu +9

Content-based recommendation systems play a crucial role in delivering personalized content to users in the digital world. In this work, we introduce EmbSum, a novel framework that…

cs.IR2024★ 1 cited

SPAR: Personalized Content-Based Recommendation via Long Engagement Attention

Chiyu Zhang, Yifei Sun, Jun Chen +7

Leveraging users' long engagement histories is essential for personalized content recommendations. The success of pretrained language models (PLMs) in NLP has led to their use in e…