Search Results for author: Rong Xu

Found 6 papers, 2 papers with code

Detection of Opioid Users from Reddit Posts via an Attention-based Bidirectional Recurrent Neural Network

1 code implementation9 Feb 2024 Yuchen Wang, Zhengyu Fang, Wei Du, Shuai Xu, Rong Xu, Jing Li

The opioid epidemic, referring to the growing hospitalizations and deaths because of overdose of opioid usage and addiction, has become a severe health problem in the United States.

Graph Agent: Explicit Reasoning Agent for Graphs

no code implementations25 Oct 2023 Qinyong Wang, Zhenxiang Gao, Rong Xu

Graph embedding methods such as Graph Neural Networks (GNNs) and Graph Transformers have contributed to the development of graph reasoning algorithms for various tasks on knowledge graphs.

Graph Embedding Knowledge Graphs +2

Exploring the In-context Learning Ability of Large Language Model for Biomedical Concept Linking

no code implementations3 Jul 2023 Qinyong Wang, Zhenxiang Gao, Rong Xu

Initially, biomedical concepts are embedded using language models, and then embedding similarity is utilized to retrieve the top candidates.

In-Context Learning Information Retrieval +5

PS-RCNN: Detecting Secondary Human Instances in a Crowd via Primary Object Suppression

no code implementations16 Mar 2020 Zheng Ge, Zequn Jie, Xin Huang, Rong Xu, Osamu Yoshie

PS-RCNN first detects slightly/none occluded objects by an R-CNN module (referred as P-RCNN), and then suppress the detected instances by human-shaped masks so that the features of heavily occluded instances can stand out.

Human Detection Object Detection

Numerical Solution of Dynamic Portfolio Optimization with Transaction Costs

no code implementations3 Mar 2020 Yongyang Cai, Kenneth Judd, Rong Xu

We apply numerical dynamic programming techniques to solve discrete-time multi-asset dynamic portfolio optimization problems with proportional transaction costs and shorting/borrowing constraints.

Portfolio Optimization

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