Search Results for author: Shan Chen

Found 15 papers, 9 papers with code

Wait, but Tylenol is Acetaminophen... Investigating and Improving Language Models' Ability to Resist Requests for Misinformation

no code implementations30 Sep 2024 Shan Chen, Mingye Gao, Kuleen Sasse, Thomas Hartvigsen, Brian Anthony, Lizhou Fan, Hugo Aerts, Jack Gallifant, Danielle Bitterman

Background: Large language models (LLMs) are trained to follow directions, but this introduces a vulnerability to blindly comply with user requests even if they generate wrong information.

Logical Reasoning Misinformation

AIPatient: Simulating Patients with EHRs and LLM Powered Agentic Workflow

no code implementations27 Sep 2024 Huizi Yu, Jiayan Zhou, Lingyao Li, Shan Chen, Jack Gallifant, Anye Shi, Xiang Li, Wenyue Hua, Mingyu Jin, Guang Chen, Yang Zhou, Zhao Li, Trisha Gupte, Ming-Li Chen, Zahra Azizi, Yongfeng Zhang, Themistocles L. Assimes, Xin Ma, Danielle S. Bitterman, Lin Lu, Lizhou Fan

Here, we developed AIPatient, an advanced simulated patient system with AIPatient Knowledge Graph (AIPatient KG) as the input and the Reasoning Retrieval-Augmented Generation (Reasoning RAG) agentic workflow as the generation backbone.

Question Answering RAG +1

Dense Point Clouds Matter: Dust-GS for Scene Reconstruction from Sparse Viewpoints

no code implementations13 Sep 2024 Shan Chen, Jiale Zhou, Lei LI

3D Gaussian Splatting (3DGS) has demonstrated remarkable performance in scene synthesis and novel view synthesis tasks.

Novel View Synthesis

Language Models are Surprisingly Fragile to Drug Names in Biomedical Benchmarks

1 code implementation17 Jun 2024 Jack Gallifant, Shan Chen, Pedro Moreira, Nikolaj Munch, Mingye Gao, Jackson Pond, Leo Anthony Celi, Hugo Aerts, Thomas Hartvigsen, Danielle Bitterman

Medical knowledge is context-dependent and requires consistent reasoning across various natural language expressions of semantically equivalent phrases.

Measuring Pointwise $\mathcal{V}$-Usable Information In-Context-ly

1 code implementation18 Oct 2023 Sheng Lu, Shan Chen, Yingya Li, Danielle Bitterman, Guergana Savova, Iryna Gurevych

In-context learning (ICL) is a new learning paradigm that has gained popularity along with the development of large language models.

In-Context Learning

Evaluation of ChatGPT Family of Models for Biomedical Reasoning and Classification

1 code implementation5 Apr 2023 Shan Chen, Yingya Li, Sheng Lu, Hoang Van, Hugo JWL Aerts, Guergana K. Savova, Danielle S. Bitterman

The first task is classifying whether statements of clinical and policy recommendations in scientific literature constitute health advice.

domain classification Prompt Engineering +1

BCH-NLP at BioCreative VII Track 3: medications detection in tweets using transformer networks and multi-task learning

1 code implementation26 Nov 2021 Dongfang Xu, Shan Chen, Timothy Miller

In this paper, we present our work participating in the BioCreative VII Track 3 - automatic extraction of medication names in tweets, where we implemented a multi-task learning model that is jointly trained on text classification and sequence labelling.

Data Augmentation Multi-Task Learning +2

Thinkey: A Scalable Blockchain Architecture

no code implementations9 Apr 2019 Shan Chen, Weiguo Dai, Yuanxi Dai, Hao Fu, Yang Gao, Jianqi Guo, Haoqing He, Yuhong Liu

This paper presents Thinkey, an efficient, secure, infinitely scalable and decentralized blockchain architecture.

Cryptography and Security

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