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researcher

Lei Chen

14 papers hereh-index 445 citations22 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • middle author4
  • last author8

Across the 13 of 14 papers where every author was matched, so the position is known.

fields
  • cs.CL4
  • cs.IR4
  • cs.AI3
  • cs.DB2
  • cs.LG1
same name
  • Lei Chen — 41 papers, h 71
  • Lei Chen — 26 papers, h 7
  • Lei Chen — 25 papers, h 14
  • Lei Chen — 21 papers, h 8
  • Lei Chen — 19 papers, h 9
  • Lei Chen — 13 papers, h 9

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

activity
20232026
most citedOpenRAG: Optimizing RAG End-to-End via In-Context Retrieval Learning

1 citations · 2 across the 14 of their papers we have counts for

collaborators
Showing cs.IRShow all

4 papers · 1 filter

cs.IR2026

Memory Layer: Train the In-Model Cache for Recommendation Models

Liangyuan Na, Gufan Yin, Yixin Bao +19

Early ranking stages in recommendation systems precompute item embeddings and cache them in-model for scoring within strict latency constraints. Because this cache exists only at s…

cs.IR2026

Pailitao-VL: Unified Embedding and Reranker for Real-Time Multi-Modal Industrial Search

Lei Chen, Chen Ju, Xu Chen +13

In this work, we presented Pailitao-VL, a comprehensive multi-modal retrieval system engineered for high-precision, real-time industrial search. We here address three critical chal…

cs.IR2026

Rethinking ANN-based Retrieval: Multifaceted Learnable Index for Large-scale Recommendation System

Jiang Zhang, Yubo Wang, Wei Chang +14

Approximate nearest neighbor (ANN) search is widely used in the retrieval stage of large-scale recommendation systems. In this stage, candidate items are indexed using their learne…

cs.IR2025

SilverTorch: A Unified Model-based System to Democratize Large-Scale Recommendation on GPUs

Bi Xue, Hong Wu, Lei Chen +29

Serving deep learning based recommendation models (DLRM) at scale is challenging. Existing approaches rely on dedicated ANN indexing and filtering services on CPUs, suffering from…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.