| ---
|
| license: cc-by-4.0
|
| task_categories:
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| - time-series-forecasting
|
| tags:
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| - tsfile
|
| - timeseries
|
| - time-series
|
| - anomaly-detection
|
| pretty_name: SMAP (TsFile)
|
| size_categories:
|
| - 100K<n<1M
|
| configs:
|
| - config_name: default
|
| data_files:
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| - split: train
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| path: SMAP_train.tsfile
|
| - split: test
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| path: SMAP_test.tsfile
|
| ---
|
|
|
| # SMAP (TsFile)
|
|
|
| Apache TsFile version of the `SMAP` anomaly-detection subset of
|
| [`thuml/Time-Series-Library`](https://huggingface.co/datasets/thuml/Time-Series-Library).
|
|
|
| ## Overview
|
|
|
| Soil Moisture Active Passive satellite telemetry (25 channels) for anomaly detection.
|
|
|
| - **Train:** 135,183 rows (all normal).
|
| - **Test:** 427,617 rows (with per-timestep 0/1 anomaly labels).
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| - **Channels:** 25.
|
|
|
| The train and test segments are stored as two separate TsFiles
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| (`SMAP_train.tsfile` / `SMAP_test.tsfile`), preserving the original split.
|
|
|
| ## Schema (TsFile structure)
|
|
|
| - **Time** (INT64, milliseconds) — row index * 1000 ms (the `.npy` source has no timestamp; a monotone 1 Hz proxy axis).
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| - **FIELD** (25 channels, FLOAT) — the sensor/metric channels.
|
| - **label** (INT32) — per-timestep anomaly flag (0/1). The train file is all 0
|
| (no ground-truth labels); the test file carries the anomaly labels.
|
|
|
| No channels or rows are dropped.
|
|
|
| ## Usage
|
|
|
| Read the `.tsfile` files with the Apache TsFile Java or Python SDK.
|
|
|
| ## Source & license
|
|
|
| - Original dataset: https://huggingface.co/datasets/thuml/Time-Series-Library (subset `SMAP`)
|
| - Author / publisher: thuml (Tsinghua University)
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| - Paper: https://arxiv.org/abs/2407.13278
|
| - License: CC BY 4.0
|
|
|
