Search Results for author: Xiufeng Liu

Found 9 papers, 4 papers with code

High-order Spatial Interactions Enhanced Lightweight Model for Optical Remote Sensing Image-based Small Ship Detection

no code implementations7 Apr 2023 Yifan Yin, Xu Cheng, Fan Shi, Xiufeng Liu, Huan Huo, ShengYong Chen

Accurate and reliable optical remote sensing image-based small-ship detection is crucial for maritime surveillance systems, but existing methods often struggle with balancing detection performance and computational complexity.

object-detection Small Object Detection

A Review of Federated Learning in Energy Systems

no code implementations20 Aug 2022 Xu Cheng, Chendan Li, Xiufeng Liu

Then, we conducted a comprehensive review of FL applications in the energy domain (refer to the smart grid in this paper).

Federated Learning

Smart Meter Data Anomaly Detection using Variational Recurrent Autoencoders with Attention

no code implementations8 Jun 2022 Wenjing Dai, Xiufeng Liu, Alfred Heller, Per Sieverts Nielsen

This paper proposes an unsupervised anomaly detection method based on a Variational Recurrent Autoencoder with attention mechanism.

Management Time Series Analysis +1

SEGSys: A mapping system for segmentation analysis in energy

no code implementations11 Dec 2020 Xiufeng Liu, Rongling Li, Yi Wang, Per Sieverts Nielsen

This paper showcases the system on the segmentation analysis using an electricity consumption data set and validates the effectiveness of the system.

Databases

$E^3$: Visual Exploration of Spatiotemporal Energy Demand

1 code implementation16 Jun 2020 Junqi Wu, Zhibin Niu, Jing Wu, Xiufeng Liu, Jiawan Zhang

Understanding demand-side energy behaviour is critical for making efficiency responses for energy demand management.

Human-Computer Interaction Computers and Society

Regression-based Online Anomaly Detection for Smart Grid Data

1 code implementation18 Jun 2016 Xiufeng Liu, Per Sieverts Nielsen

With the widely used smart meters in the energy sector, anomaly detection becomes a crucial mean to study the unusual consumption behaviors of customers, and to discover unexpected events of using energy promptly.

Databases

Two-level Data Staging ETL for Transaction Data

1 code implementation5 Sep 2014 Xiufeng Liu

The proposed method detects the changes of the data from transactional processing systems, identifies the corresponding operation codes for the changes, and uses two staging databases to facilitate the data processing in an ETL process.

Databases

Optimizing ETL Dataflow Using Shared Caching and Parallelization Methods

1 code implementation5 Sep 2014 Xiufeng Liu

In order to minimize the time and the resources required by ETL dataflows, this paper presents a framework to optimize dataflows using shared cache and parallelization techniques.

Databases

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