---
license: cc-by-4.0
viewer: false
---

# HubEdgeLoc Dataset

[![Paper](https://img.shields.io/badge/Paper-IMWUT-blue.svg)](#)

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

```text
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`](CITATION.cff).

## License

This dataset is released under the [CC BY 4.0 license](LICENSE).