2026

SpecMind: Enabling Spectrum Intelligence via Multi-Agent Hybrid Retrieval-Augmented Generation
SpecMind: Enabling Spectrum Intelligence via Multi-Agent Hybrid Retrieval-Augmented Generation

Songwei Dong*, Bingyan Lu*, Makayla Kienlen, J. Nicholas Laneman, Cong Shen (* equal contribution)

IEEE Global Communications Conference (GLOBECOM) 2026

A multi-agent hybrid RAG system that routes spectrum questions to specialised agents over license records, regulations, and proceeding filings, then composes one grounded answer.

SpecMind: Enabling Spectrum Intelligence via Multi-Agent Hybrid Retrieval-Augmented Generation

Songwei Dong*, Bingyan Lu*, Makayla Kienlen, J. Nicholas Laneman, Cong Shen (* equal contribution)

IEEE Global Communications Conference (GLOBECOM) 2026

A multi-agent hybrid RAG system that routes spectrum questions to specialised agents over license records, regulations, and proceeding filings, then composes one grounded answer.

The Past Is Prologue: A Plug-in Controller for Selective Updates in Sequentially Evolving LLM Memory
The Past Is Prologue: A Plug-in Controller for Selective Updates in Sequentially Evolving LLM Memory

Zihan Chen, Songwei Dong, Chengshuai Shi, Peng Wang, Song Wang, Cong Shen, Jundong Li

Conference on Empirical Methods in Natural Language Processing (EMNLP), Main Conference 2026

A plug-in controller that decides whether each candidate memory update is worth deploying, adding 2.7 to 4.6 accuracy points on top of existing memory updaters.

The Past Is Prologue: A Plug-in Controller for Selective Updates in Sequentially Evolving LLM Memory

Zihan Chen, Songwei Dong, Chengshuai Shi, Peng Wang, Song Wang, Cong Shen, Jundong Li

Conference on Empirical Methods in Natural Language Processing (EMNLP), Main Conference 2026

A plug-in controller that decides whether each candidate memory update is worth deploying, adding 2.7 to 4.6 accuracy points on top of existing memory updaters.

Is One Score Enough? Rethinking the Evaluation of Sequentially Evolving LLM Memory
Is One Score Enough? Rethinking the Evaluation of Sequentially Evolving LLM Memory

Songwei Dong*, Zihan Chen*, Chengshuai Shi, Peng Wang, Jundong Li, Cong Shen (* equal contribution)

arXiv preprint 2026

A diagnostic framework for LLM memory that separates online utility, generalization, backward transfer, and forgetting, showing that headline accuracy often hides substantial forgetting.

Is One Score Enough? Rethinking the Evaluation of Sequentially Evolving LLM Memory

Songwei Dong*, Zihan Chen*, Chengshuai Shi, Peng Wang, Jundong Li, Cong Shen (* equal contribution)

arXiv preprint 2026

A diagnostic framework for LLM memory that separates online utility, generalization, backward transfer, and forgetting, showing that headline accuracy often hides substantial forgetting.

Training-Free Speedup for Retrieval-Augmented Generation with Staged Parallel Speculation

Songwei Dong, Zihan Chen, Peng Wang, Cong Shen

Under review

A training-free RAG framework that overlaps retrieval with generation and picks among parallel candidate chunks by self-consistency, cutting latency by up to 57%.

Training-Free Speedup for Retrieval-Augmented Generation with Staged Parallel Speculation

Songwei Dong, Zihan Chen, Peng Wang, Cong Shen

Under review

A training-free RAG framework that overlaps retrieval with generation and picks among parallel candidate chunks by self-consistency, cutting latency by up to 57%.

SceneTrans: A Benchmark for Action-Aware Scene Transformation Captioning

Songwei Dong, Yongming Qin, Chenxi Chen, Cong Shen

Under review

A simulation-built benchmark for action-aware image difference captioning, with object-level spatial grounding and displacement distances that current proprietary VLMs handle poorly.

SceneTrans: A Benchmark for Action-Aware Scene Transformation Captioning

Songwei Dong, Yongming Qin, Chenxi Chen, Cong Shen

Under review

A simulation-built benchmark for action-aware image difference captioning, with object-level spatial grounding and displacement distances that current proprietary VLMs handle poorly.

2023

A hybrid MCDM model with Monte Carlo simulation to improve decision-making stability and reliability
A hybrid MCDM model with Monte Carlo simulation to improve decision-making stability and reliability

Haizhou Cui, Songwei Dong, Jiayi Hu, Mengqi Chen, Bodong Hou, Jingshun Zhang, Botong Zhang, Jitong Xian, Faan Chen

Information Sciences 2023

A hybrid MCDM model combining CRITIC, MABAC, and k-means, whose Monte Carlo step resolves disagreeing clustering runs; demonstrated on transport safety across the ASEAN region.

A hybrid MCDM model with Monte Carlo simulation to improve decision-making stability and reliability

Haizhou Cui, Songwei Dong, Jiayi Hu, Mengqi Chen, Bodong Hou, Jingshun Zhang, Botong Zhang, Jitong Xian, Faan Chen

Information Sciences 2023

A hybrid MCDM model combining CRITIC, MABAC, and k-means, whose Monte Carlo step resolves disagreeing clustering runs; demonstrated on transport safety across the ASEAN region.

Learning Generalized Representations for Open-Set Temporal Action Localization
Learning Generalized Representations for Open-Set Temporal Action Localization

Junshan Hu, Liansheng Zhuang, Songwei Dong, Shiming Ge, Shafei Wang

ACM International Conference on Multimedia (ACM MM) 2023

A one-stage open-set temporal action localization framework trained under sharpness-aware minimization, setting state of the art on THUMOS14 and ActivityNet1.3.

Learning Generalized Representations for Open-Set Temporal Action Localization

Junshan Hu, Liansheng Zhuang, Songwei Dong, Shiming Ge, Shafei Wang

ACM International Conference on Multimedia (ACM MM) 2023

A one-stage open-set temporal action localization framework trained under sharpness-aware minimization, setting state of the art on THUMOS14 and ActivityNet1.3.