Search Results for author: Kejian Shi

Found 7 papers, 5 papers with code

Medical Text Simplification: Optimizing for Readability with Unlikelihood Training and Reranked Beam Search Decoding

1 code implementation17 Oct 2023 Lorenzo Jaime Yu Flores, Heyuan Huang, Kejian Shi, Sophie Chheang, Arman Cohan

Text simplification has emerged as an increasingly useful application of AI for bridging the communication gap in specialized fields such as medicine, where the lexicon is often dominated by technical jargon and complex constructs.

Text Simplification

ODSum: New Benchmarks for Open Domain Multi-Document Summarization

1 code implementation16 Sep 2023 Yijie Zhou, Kejian Shi, Wencai Zhang, Yixin Liu, Yilun Zhao, Arman Cohan

Open-domain Multi-Document Summarization (ODMDS) is a critical tool for condensing vast arrays of documents into coherent, concise summaries.

Document Summarization Multi-Document Summarization +1

On Learning to Summarize with Large Language Models as References

1 code implementation23 May 2023 Yixin Liu, Kejian Shi, Katherine S He, Longtian Ye, Alexander R. Fabbri, PengFei Liu, Dragomir Radev, Arman Cohan

Meanwhile, we perform a meta-analysis on this new learning setting that reveals a discrepancy between human and LLM-based evaluation, highlighting the benefits and risks of this LLM-as-reference setting we investigated.

Contrastive Learning Text Summarization

Pretraining Language Models with Human Preferences

1 code implementation16 Feb 2023 Tomasz Korbak, Kejian Shi, Angelica Chen, Rasika Bhalerao, Christopher L. Buckley, Jason Phang, Samuel R. Bowman, Ethan Perez

Language models (LMs) are pretrained to imitate internet text, including content that would violate human preferences if generated by an LM: falsehoods, offensive comments, personally identifiable information, low-quality or buggy code, and more.

Imitation Learning Language Modelling

Automatic Error Analysis for Document-level Information Extraction

1 code implementation ACL 2022 Aliva Das, Xinya Du, Barry Wang, Kejian Shi, Jiayuan Gu, Thomas Porter, Claire Cardie

Document-level information extraction (IE) tasks have recently begun to be revisited in earnest using the end-to-end neural network techniques that have been successful on their sentence-level IE counterparts.

Event Extraction Relation Extraction +1

V2I Connectivity-Based Dynamic Queue-Jump Lane for Emergency Vehicles: A Deep Reinforcement Learning Approach

no code implementations1 Aug 2020 Haoran Su, Kejian Shi, Li Jin, Joseph Y. J. Chow

Emergency vehicle (EMV) service is a key function of cities and is exceedingly challenging due to urban traffic congestion.

Blocking

Dynamic Queue-Jump Lane for Emergency Vehicles under Partially Connected Settings: A Multi-Agent Deep Reinforcement Learning Approach

no code implementations2 Mar 2020 Haoran Su, Kejian Shi, Joseph. Y. J. Chow, Li Jin

Based on pairs of neural networks representing actors and critics for agent vehicles, we develop a multi-agent actor-critic deep reinforcement learning algorithm that handles a varying number of vehicles and a random proportion of connected vehicles in the traffic.

Blocking Multi-agent Reinforcement Learning +2

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