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Lei Song

15 papers hereh-index 7105 citations22 works total

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

author position
  • middle author14
  • last author1

Across the 15 of 15 papers where every author was matched, so the position is known.

fields
  • cs.LG7
  • cs.CV4
  • cs.CL2
  • cs.AI1
  • cs.IR1
same name
  • Lei Song — 14 papers, h 5
  • Lei Song — 9 papers, h 9
  • Lei Song — 6 papers, h 7
  • Lei Song — 6 papers, h 4
  • Lei Song — 4 papers, h 7
  • Lei Song — 4 papers, h 3

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
20242026
most citedGraph Neural Network Enhanced Retrieval for Question Answering of LLMs

2 citations · 5 across the 15 of their papers we have counts for

collaborators
Showing 2024Show all

3 papers · 1 filter

cs.LG2024★ 1 cited

C-MORL: Multi-Objective Reinforcement Learning through Efficient Discovery of Pareto Front

Ruohong Liu, Yuxin Pan, Linjie Xu +4

Multi-objective reinforcement learning (MORL) excels at handling rapidly changing preferences in tasks that involve multiple criteria, even for unseen preferences. However, previou…

cs.LG2024

Unveiling Markov Heads in Pretrained Language Models for Offline Reinforcement Learning

Wenhao Zhao, Qiushui Xu, Linjie Xu +4

Recently, incorporating knowledge from pretrained language models (PLMs) into decision transformers (DTs) has generated significant attention in offline reinforcement learning (RL)…

cs.CL2024★ 2 cited

Graph Neural Network Enhanced Retrieval for Question Answering of LLMs

Zijian Li, Qingyan Guo, Jiawei Shao +4

Retrieval augmented generation has revolutionized large language model (LLM) outputs by providing factual supports. Nevertheless, it struggles to capture all the necessary knowledg…

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