UniPinRec: Unifying Generative Retrieval and Ranking at Pinterest Scale

arXiv:2606.00422 · cs.IR, cs.LG · Submitted 2026-05-29 · Read on arXiv

cs.IR, cs.LG

Submitted: 2026-05-29

Updated: 2026-05-29

Terminology

• Transformer — 26× in this paper · explained in 2 episodes
• Embeddings — 11× in this paper · explained in 2 episodes
• Decode — 9× in this paper · explained in 2 episodes
• Generative Recommendation — 8× in this paper · explained in 2 episodes
• KV cache — 8× in this paper · explained in 3 episodes
• Masked Action Modeling — 7× in this paper
• Board More Ideas — 5× in this paper
• Core — 3× in this paper · explained in 2 episodes
• Redundancy — 3× in this paper · explained in 2 episodes
• Ablation — 2× in this paper · explained in 1 episode
• Alignment — 2× in this paper · explained in 1 episode
• International Conference on Information and Knowledge Management — 2× in this paper
• Quantization — 2× in this paper · explained in 12 episodes
• Sparsity — 2× in this paper · explained in 4 episodes
• Action Decoder — 1× in this paper · explained in 1 episode
• Action Masking — 1× in this paper · explained in 1 episode
• Benchmark — 1× in this paper · explained in 2 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Foundation Model — 1× in this paper · explained in 3 episodes
• Generative Model — 1× in this paper · explained in 2 episodes
• Generative Models — 1× in this paper · explained in 2 episodes
• Heterogeneous Graph — 1× in this paper · explained in 2 episodes
• Information Leakage — 1× in this paper · explained in 2 episodes
• RAG — 1× in this paper · explained in 3 episodes
• Regularization — 1× in this paper · explained in 3 episodes
• Representation Learning — 1× in this paper · explained in 2 episodes

Sources

• PinRec: Unified Generative Retrieval for Pinterest Recommender Systems
• PinCLIP: Large-scale Foundational Multimodal Representation at Pinterest
• UniSearch: Rethinking Search System with a Unified Generative Architecture
• OnePiece: Bringing Context Engineering and Reasoning to Industrial Cascade Ranking System
• OneRec: Unifying Retrieve and Rank with Generative Recommender and Iterative Preference Alignment
• How Well Does Generative Recommendation Generalize?
• SynerGen: Contextualized Generative Recommender for Unified Search and Recommendation
• Flex Attention: A Programming Model for Generating Optimized Attention Kernels
• Towards Large-scale Generative Ranking
• CADET: Context-Conditioned Ads CTR Prediction With a Decoder-Only Transformer
• Vectorizing the Trie: Efficient Constrained Decoding for LLM-based Generative Retrieval on Accelerators
• OneRanker: Unified Generation and Ranking with One Model in Industrial Advertising Recommendation
• RelayGR: Scaling Long-Sequence Generative Recommendation via Cross-Stage Relay-Race Inference
• IntSR: An Integrated Generative Framework for Search and Recommendation
• Unifying Generative and Dense Retrieval for Sequential Recommendation
• FuXi-\beta: Towards a Lightweight and Fast Large-Scale Generative Recommendation Model
• GPR: Towards a Generative Pre-trained One-Model Paradigm for Large-Scale Advertising Recommendation
• SMES: Towards Scalable Multi-Task Recommendation via Expert Sparsity

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