activity
20242026
most citedOmniSage: Large Scale, Multi-Entity Heterogeneous Graph Representation Learning

4 citations · 5 across the 5 of their papers we have counts for

collaborators

5 papers

cs.IR2026

UniPinRec: Unifying Generative Retrieval and Ranking at Pinterest Scale

Hanyu Li, Yi-Ping Hsu, Aditya Mantha +17

Modern recommendation systems predominantly train retrieval and ranking as separate models despite both increasingly relying on large transformers encoding the same user behavior d…

cs.LG2025

PinFM: Foundation Model for User Activity Sequences at a Billion-scale Visual Discovery Platform

Xiangyi Chen, Kousik Rajesh, Matthew Lawhon +9

User activity sequences have emerged as one of the most important signals in recommender systems. We present a foundational model, PinFM, for understanding user activity sequences…

cs.IR2025

TransAct V2: Lifelong User Action Sequence Modeling on Pinterest Recommendation

Xue Xia, Saurabh Vishwas Joshi, Kousik Rajesh +6

Modeling user action sequences has become a popular focus in industrial recommendation system research, particularly for Click-Through Rate (CTR) prediction tasks. However, industr…

cs.IR2025★ 4 cited

OmniSage: Large Scale, Multi-Entity Heterogeneous Graph Representation Learning

Anirudhan Badrinath, Alex Yang, Kousik Rajesh +5

Representation learning, a task of learning latent vectors to represent entities, is a key task in improving search and recommender systems in web applications. Various representat…

cs.LG2024★ 1 cited

Federated LoRA with Sparse Communication

Kevin Kuo, Arian Raje, Kousik Rajesh +1

Low-rank adaptation (LoRA) is a natural method for finetuning in communication-constrained machine learning settings such as cross-device federated learning. Prior work that has st…