activity
20242026
most citedHeterRec: Heterogeneous Information Transformer for Scalable Sequential Recommendation

5 citations · 12 across the 21 of their papers we have counts for

collaborators

23 papers

cs.IR2026

Cross-Country Code-Mixing for Generative Recommendation

Yuan Gao, Hao Deng, Haibo Xing +5

Cross-country recommendation on modern e-commerce platforms is typically deployed with disjoint user and item ID spaces across markets, removing the shared anchors that conventiona…

cs.IR2026

Astar: Learning to Propose Evolution Directions for Self-Evolving Industrial AI Systems

Jinxin Hu, Hao Deng, Haibo Xing +12

Modern AI systems advance through continuous iteration: a loop of proposing evolution directions, implementing code, training, and evaluation. While the latter three stages are inc…

cs.IR2026

SpecFormer: Mitigating Embedding and Attention Collapse via Spectral-Aware Transformer for Recommendation

Yu Cui, Yi Xu, Jiahao Wang +6

Transformer architectures have achieved remarkable success across diverse domains; however, directly applying their standard self-attention mechanism to recommendation often yields…

cs.IR2026

EvoRec: Self Evolving Agentic Recommender Systems

Lingyu Mu, Hao Deng, Haibo Xing +3

Optimizing modern recommender systems still relies heavily on engineers iterating by hand, which is slow and bounded by individual expertise. LLM-based agents open a path toward au…

cs.IR2026

LWGR: Lagrangian-Constrained Personalized World Knowledge for Generative Recommendation

Lingyu Mu, Hao Deng, Haibo Xing +7

Recent progress in large language model (LLM) based generative recommendation (GR) shows that leveraging LLM world knowledge can substantially improve performance. However, existin…

cs.IR2026

Rethinking Recommendation Paradigms: From Pipelines to Agentic Recommender Systems

Jinxin Hu, Hao Deng, Lingyu Mu +4

Large-scale industrial recommenders typically use a fixed multi-stage pipeline (recall, ranking, re-ranking) and have progressed from collaborative filtering to deep and large pre-…

cs.IR2026

AgenticRS-Architecture: System Design for Agentic Recommender Systems

Hao Zhang, Jinxin Hu, Hao Deng +4

AutoModel is an agent based architecture for the full lifecycle of industrial recommender systems. Instead of a fixed recall and ranking pipeline, AutoModel organizes recommendatio…

cs.IR2026

RCLRec: Reverse Curriculum Learning for Modeling Sparse Conversions in Generative Recommendation

Yulei Huang, Hao Deng, Haibo Xing +5

Conversion objectives in large-scale recommender systems are sparse, making them difficult to optimize. Generative recommendation (GR) partially alleviates data sparsity by organiz…

cs.IR2026

Deferred is Better: A Framework for Multi-Granularity Deferred Interaction of Heterogeneous Features

Yi Xu, Moyu Zhang, Chaofan Fan +3

Click-through rate (CTR) prediction models estimates the probability of a user-item click by modeling interactions across a vast feature space. A fundamental yet often overlooked c…

cs.IR2026

Bridging Sequential and Contextual Features with a Dual-View of Fine-grained Core-Behaviors and Global Interest-Distribution

Yi Xu, Chaofan Fan, Moyu Zhang +6

Click-through rate (CTR) prediction tasks typically estimate the probability of a user clicking on a candidate item by modeling both user behavior sequence features and the item's…

cs.IR2026

Learning to Reflect and Correct: Towards Better Decoding Trajectories for Large-Scale Generative Recommendation

Haibo Xing, Hao Deng, Lingyu Mu +4

Generative Recommendation (GR) has become a promising paradigm for large-scale recommendation systems. However, existing GR models typically perform single-pass decoding without ex…

cs.IR2026

Masked Diffusion Generative Recommendation

Lingyu Mu, Hao Deng, Haibo Xing +4

Generative recommendation (GR) typically first quantizes continuous item embeddings into multi-level semantic IDs (SIDs), and then generates the next item via autoregressive decodi…

cs.IR2025

Synergistic Integration and Discrepancy Resolution of Contextualized Knowledge for Personalized Recommendation

Lingyu Mu, Hao Deng, Haibo Xing +7

The integration of large language models (LLMs) into recommendation systems has revealed promising potential through their capacity to extract world knowledge for enhanced reasonin…

cs.IR2025

Taming the Long Tail: Denoising Collaborative Information for Robust Semantic ID Generation

Yi Xu, Moyu Zhang, Chaofan Fan +5

Item IDs form the backbone of industrial recommender systems, but suffer from representation instability and poor long-tail generalization in large, dynamic item corpora. Semantic…

cs.IR2025★ 2 cited

MMQ: Multimodal Mixture-of-Quantization Tokenization for Semantic ID Generation and User Behavioral Adaptation

Yi Xu, Moyu Zhang, Chenxuan Li +7

Recommender systems traditionally represent items using unique identifiers (ItemIDs), but this approach struggles with large, dynamic item corpora and sparse long-tail data, limiti…

cs.IR2025

REG4Rec: Reasoning-Enhanced Generative Model for Large-Scale Recommendation Systems

Haibo Xing, Hao Deng, Yucheng Mao +9

Sequential recommendation aims to predict a user's next action in large-scale recommender systems. While traditional methods often suffer from insufficient information interaction,…

cs.IR2025★ 5 cited

HeterRec: Heterogeneous Information Transformer for Scalable Sequential Recommendation

Hao Deng, Haibo Xing, Kanefumi Matsuyama +8

Transformer-based sequential recommendation (TSR) models have shown superior performance in recommendation systems, where the quality of item representations plays a crucial role.…

cs.IR2025★ 2 cited

CSMF: Cascaded Selective Mask Fine-Tuning for Multi-Objective Embedding-Based Retrieval

Hao Deng, Haibo Xing, Kanefumi Matsuyama +6

Multi-objective embedding-based retrieval (EBR) has become increasingly critical due to the growing complexity of user behaviors and commercial objectives. While traditional approa…

cs.IR2025

Federated Mixture-of-Expert for Non-Overlapped Cross-Domain Sequential Recommendation

Yu Liu, Hanbin Jiang, Lei Zhu +4

In the real world, users always have multiple interests while surfing different services to enrich their daily lives, e.g., watching hot short videos/live streamings. To describe u…

cs.IR2025

Addressing Information Loss and Interaction Collapse: A Dual Enhanced Attention Framework for Feature Interaction

Yi Xu, Zhiyuan Lu, Xiaochen Li +5

The Transformer has proven to be a significant approach in feature interaction for CTR prediction, achieving considerable success in previous works. However, it also presents poten…

cs.IR2025★ 1 cited

LREA: Low-Rank Efficient Attention on Modeling Long-Term User Behaviors for CTR Prediction

Xin Song, Xiaochen Li, Jinxin Hu +5

With the rapid growth of user historical behavior data, user interest modeling has become a prominent aspect in Click-Through Rate (CTR) prediction, focusing on learning user inten…

cs.IR2025★ 2 cited

ESANS: Effective and Semantic-Aware Negative Sampling for Large-Scale Retrieval Systems

Haibo Xing, Kanefumi Matsuyama, Hao Deng +3

Industrial recommendation systems typically involve a two-stage process: retrieval and ranking, which aims to match users with millions of items. In the retrieval stage, classic em…

cs.IR2024

Scenario-Adaptive Fine-Grained Personalization Network: Tailoring User Behavior Representation to the Scenario Context

Moyu Zhang, Yongxiang Tang, Jinxin Hu +1

Existing methods often adjust representations adaptively only after aggregating user behavior sequences. This coarse-grained approach to re-weighting the entire user sequence hampe…