Search Results for author: Long He

Found 8 papers, 2 papers with code

A Two Time-Scale Joint Optimization Approach for UAV-assisted MEC

no code implementations6 Apr 2024 Zemin Sun, Geng Sun, Long He, Fang Mei, Shuang Liang, Yanheng Liu

In the short time scale, we propose a price-incentive method for on-demand computing resource allocation and a matching mechanism-based method for computation offloading.

Edge-computing

TJCCT: A Two-timescale Approach for UAV-assisted Mobile Edge Computing

no code implementations23 Mar 2024 Zemin Sun, Geng Sun, Qingqing Wu, Long He, Shuang Liang, Hongyang Pan, Dusit Niyato, Chau Yuen, Victor C. M. Leung

Since the problem is a non-convex and NP-hard mixed integer nonlinear programming (MINLP), we propose a two-timescale joint computing resource allocation, computation offloading, and trajectory control (TJCCT) approach for solving the problem.

Edge-computing

REALM: RAG-Driven Enhancement of Multimodal Electronic Health Records Analysis via Large Language Models

no code implementations10 Feb 2024 Yinghao Zhu, Changyu Ren, Shiyun Xie, Shukai Liu, Hangyuan Ji, Zixiang Wang, Tao Sun, Long He, Zhoujun Li, Xi Zhu, Chengwei Pan

Leveraging clinical notes and multivariate time-series EHR, existing models often lack the medical context relevent to clinical tasks, prompting the incorporation of external knowledge, particularly from the knowledge graph (KG).

Language Modelling Large Language Model +1

PRISM: Leveraging Prototype Patient Representations with Feature-Missing-Aware Calibration for EHR Data Sparsity Mitigation

1 code implementation8 Sep 2023 Yinghao Zhu, Zixiang Wang, Long He, Shiyun Xie, Liantao Ma, Chengwei Pan

Electronic Health Record (EHR) data, while rich in information, often suffers from sparsity, posing significant challenges in predictive modeling.

Imputation

Joint Task Offloading and Resource Allocation in Aerial-Terrestrial UAV Networks with Edge and Fog Computing for Post-Disaster Rescue

no code implementations17 Aug 2023 Geng Sun, Long He, Zemin Sun, Qingqing Wu, Shuang Liang, Jiahui Li, Dusit Niyato, Victor C. M. Leung

Unmanned aerial vehicles (UAVs) play an increasingly important role in assisting fast-response post-disaster rescue due to their fast deployment, flexible mobility, and low cost.

Edge-computing

Prescriptive PCA: Dimensionality Reduction for Two-stage Stochastic Optimization

no code implementations4 Jun 2023 Long He, Ho-Yin Mak

In this paper, we consider the alignment between an upstream dimensionality reduction task of learning a low-dimensional representation of a set of high-dimensional data and a downstream optimization task of solving a stochastic program parameterized by said representation.

Dimensionality Reduction Stochastic Optimization

Hierarchical Image Classification with A Literally Toy Dataset

no code implementations1 Nov 2021 Long He, Dandan song, Liang Zheng

We define the classification task where classes have characteristics above and the flat classes and the base classes are organized hierarchically as hierarchical image classification.

Classification Image Classification +1

Physics-guided Design and Learning of Neural Networks for Predicting Drag Force on Particle Suspensions in Moving Fluids

1 code implementation6 Nov 2019 Nikhil Muralidhar, Jie Bu, Ze Cao, Long He, Naren Ramakrishnan, Danesh Tafti, Anuj Karpatne

In such situations, it is often useful to rely on machine learning methods to fill in the gap by learning a model of the complex physical process directly from simulation data.

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