HubEdgeLoc Dataset

This repository contains the official dataset for the IMWUT paper "HubEdgeLoc: Edge-Based Temporally Robust Real-Time Localization for Mobile Assets in Transport Hubs."

HubEdgeLoc is a longitudinal Wi-Fi received signal strength (RSS) dataset collected for evaluating indoor localization methods and their robustness to environmental and access-point changes over time.

Dataset Highlights

• Longitudinal data: Five monthly evaluation sets are provided for the airport and two for the campus.
• Two scenarios: The dataset covers a large, dynamic airport terminal and a more structured university campus environment.
• Multiple fingerprint representations: Each scenario includes the original observations, a traditional representation, and the compact Score/Top-K representation used by HubEdgeLoc.

Dataset Structure

data/
|-- Airport/
|   |-- Fingerprint Database/
|   |   |-- OriginDat/
|   |   |   `-- RSSOridat.csv
|   |   |-- Traditional Process/
|   |   |   `-- Traditional Process Dat.csv
|   |   `-- After Score Process/
|   |       |-- Macnumtrain.csv
|   |       |-- postrain.csv
|   |       |-- ToPKnumMactrain.csv
|   |       `-- TopKRSStrain.csv
|   |-- Init/
|   |   |-- RSS_dat.csv
|   |   `-- postest.csv
|   |-- Month1/
|   |-- Month2/
|   |-- Month3/
|   |-- Month4/
|   `-- Month5/
`-- Campus/
    |-- Fingerprint Database/
    |   |-- Original Data/
    |   |   `-- RSSOridat.csv
    |   |-- After Traditional Process/
    |   |   `-- Traditional Process Dat.csv
    |   `-- After Score Process/
    |       |-- Macnumtrain.csv
    |       |-- postrain.csv
    |       |-- TopKnumMactrain.csv
    |       `-- TopKRSStrain.csv
    |-- Init/
    |   |-- RSS_dat.csv
    |   `-- postest.csv
    |-- Month1/
    `-- Month2/

Each MonthX directory follows the same two-file organization as Init: an RSS_dat*.csv file containing Wi-Fi observations and a postest.csv file containing local-coordinate data.

Fingerprint Database

The Fingerprint Database directory contains the reference data used to construct the radio map in three forms:

• Original data: RSSOridat.csv stores the grouped Wi-Fi RSS observations.
• Traditional representation: Traditional Process Dat.csv stores the conventional high-dimensional fingerprint representation.
• Score/Top-K representation: Macnumtrain.csv stores the AP identifier mapping, postrain.csv stores reference coordinates, the TopKnumMactrain.csv or ToPKnumMactrain.csv file stores the selected AP indices, and TopKRSStrain.csv stores their RSS values.

Temporal Evaluation Sets

• Init/: Data collected immediately after construction of the fingerprint database.
• Month1/ to MonthX/: Independent data collected in subsequent months for evaluating temporal robustness. The airport contains Month1 through Month5, while the campus contains Month1 and Month2.

The MAC-like values in the published files are privacy-preserving virtual identifiers rather than the original hardware addresses.

Citation

If you use this dataset, please cite the accompanying HubEdgeLoc paper and dataset. Citation metadata is provided in CITATION.cff.

License

This dataset is released under the CC BY 4.0 license.