activity
20242026
collaborators

7 papers

cs.IR2026

Towards a Densing Law for User Representation Learning at Billion-Scale Capacity

Bin Dou, Junru Zhang, Zhaoyi Yuan +6

User representation learning in real-world industrial scenarios is commonly scaled by increasing user amount, behavioral sequence length and model size. However, existing methods f…

cs.CL2026

TabEmbed: Benchmarking and Learning Generalist Embeddings for Tabular Understanding

Minjie Qiang, Mingming Zhang, Xiaoyi Bao +5

Foundation models have established unified representations for natural language processing, yet this paradigm remains largely unexplored for tabular data. Existing methods face fun…

cs.CL2026

Query as Anchor: Scenario-Adaptive User Representation via Large Language Model

Jiahao Yuan, Yike Xu, Jinyong Wen +9

Industrial-scale user representation learning requires balancing robust universality with acute task-sensitivity. However, existing paradigms primarily yield static, task-agnostic…

cs.CL2026

How Do Decoder-Only LLMs Perceive Users? Rethinking Attention Masking for User Representation Learning

Jiahao Yuan, Yike Xu, Jinyong Wen +8

Decoder-only large language models are increasingly used as behavioral encoders for user representation learning, yet the impact of attention masking on the quality of user embeddi…

cs.LG2025

Instruction-aware User Embedding via Synergistic Language and Representation Modeling

Ziyi Gao, Yike Xu, Jiahao Yuan +9

User representation modeling has become increasingly crucial for personalized applications, yet existing approaches struggle with generalizability across domains and sensitivity to…

cs.LG2025

FOUNDv2: Learning Unified User Quantized Tokenizers for User Representation

Chuan He, Yang Chen, Bin Dou +10

User representation learning serves as a fundamental pillar for personalized services on large-scale web platforms. Despite its importance, conventional continuous embedding method…

cs.LG2024

Transferable and Forecastable User Targeting Foundation Model

Bin Dou, Baokun Wang, Yun Zhu +11

User targeting, the process of selecting targeted users from a pool of candidates for non-expert marketers, has garnered substantial attention with the advancements in digital mark…