Datasets:
record_id stringlengths 36 36 | raw_scan listlengths 2k 2k | absorbance_clean listlengths 2k 2k | concentration_ppm float64 1 1,000 | temperature_K float64 291 302 | pressure_atm float64 0.94 1.06 | path_length_m float64 10 10 | instrument_config_id stringclasses 3
values | technique stringclasses 1
value |
|---|---|---|---|---|---|---|---|---|
000a87cd-c1b9-4992-ad3a-7529ac802545 | [
0.8765567765567766,
0.8761904761904762,
0.8769230769230769,
0.8769230769230769,
0.8772893772893773,
0.8772893772893773,
0.8776556776556776,
0.8776556776556776,
0.8776556776556776,
0.8776556776556776,
0.878021978021978,
0.878021978021978,
0.878021978021978,
0.8787545787545787,
0.878754578... | [
0.000009020120152750933,
0.000009068392416707924,
0.000009117093114556238,
0.000009166227419163562,
0.000009215800580188249,
0.000009265817926319024,
0.000009316284866040623,
0.000009367206889145701,
0.000009418589568280418,
0.000009470438560406763,
0.000009522759608056004,
0.00000957555854113... | 2.120287 | 296.759238 | 1.005882 | 10 | vi-da-hard-03 | TDLAS-DA |
000f1f9b-255a-4a6f-8349-eb03d54f1ade | [
0.933894891045596,
0.933894891045596,
0.933894891045596,
0.9340780076908991,
0.9341695660135506,
0.9340780076908991,
0.9341695660135506,
0.9343526826588536,
0.9342611243362021,
0.9345357993041568,
0.9344442409815052,
0.9346273576268083,
0.9343526826588536,
0.9343526826588536,
0.934627357... | [
0.0001803624792299031,
0.00018101220417400242,
0.00018166587018052035,
0.00018232351114766133,
0.00018298516134981156,
0.00018365085544141423,
0.00018432062846148153,
0.00018499451584057738,
0.0001856725534024852,
0.0001863547773755978,
0.00018704122439171036,
0.00018773193149516416,
0.00018... | 109.401598 | 296.157507 | 1.001064 | 10 | vi-da-medium-02 | TDLAS-DA |
000fe89d-1a54-4438-b2c7-ffb459011d88 | [0.8263736263736263,0.8263736263736263,0.827106227106227,0.8267399267399267,0.827106227106227,0.8271(...TRUNCATED) | [0.0009174390013642559,0.0009206307378937671,0.0009238411283034605,0.0009270703274849912,0.000930318(...TRUNCATED) | 605.574673 | 295.810098 | 1.000899 | 10 | vi-da-hard-03 | TDLAS-DA |
0016d722-9248-40fc-ae5e-2ca88869ac40 | [0.8184398461820179,0.8184398461820179,0.8188060794726241,0.8188060794726241,0.8189891961179271,0.81(...TRUNCATED) | [0.0002221961493866444,0.0002230186830584455,0.000223846329551785,0.000224679133877194,0.00022551714(...TRUNCATED) | 127.809509 | 295.967673 | 1.002491 | 10 | vi-da-medium-02 | TDLAS-DA |
00265efb-c916-4867-a814-afe16620e1ca | [0.8706111238269627,0.870771343556878,0.8708628976882582,0.8710002288853285,0.8711604486152438,0.871(...TRUNCATED) | [0.000027158756602343585,0.0000272504925247365,0.000027342746183428614,0.00002743552173563039,0.0000(...TRUNCATED) | 19.736595 | 295.965095 | 1.000309 | 10 | vi-da-easy-01 | TDLAS-DA |
00362963-fbd1-44f9-9fb5-57729a60eea8 | [0.9120622568093385,0.9121538109407187,0.9122682536049439,0.9124284733348592,0.9125429159990844,0.91(...TRUNCATED) | [0.00024093365649305955,0.00024195822801098337,0.0002429901227583496,0.00024402941405718604,0.000245(...TRUNCATED) | 100.915905 | 295.971749 | 0.999804 | 10 | vi-da-easy-01 | TDLAS-DA |
0055f0b2-46a5-48dc-8623-53c29fc66d56 | [0.865644312199588,0.8658274204623484,0.8659418631265736,0.8661020828564889,0.8662623025864042,0.866(...TRUNCATED) | [4.756411745474711e-6,4.774508057805809e-6,4.792720387786374e-6,4.811049786660144e-6,4.8294973179373(...TRUNCATED) | 2.530695 | 295.97953 | 0.99956 | 10 | vi-da-easy-01 | TDLAS-DA |
008e793e-5366-4284-a3a0-a0dc2cdd2b69 | [0.7941391941391941,0.7945054945054945,0.7948717948717948,0.7948717948717948,0.7952380952380952,0.79(...TRUNCATED) | [0.00011850139473626499,0.00011897700159790023,0.00011945583039751,0.00011993791185981669,0.00012042(...TRUNCATED) | 56.427054 | 295.247627 | 0.987078 | 10 | vi-da-hard-03 | TDLAS-DA |
00a00661-5fbc-44db-9505-81248877b3f4 | [0.8817066471342245,0.881798205456876,0.881981322102179,0.8821644387474822,0.8822559970701337,0.8824(...TRUNCATED) | [0.000010954369200800332,0.000011003071420508345,0.000011052136116780582,0.000011101567054729169,0.0(...TRUNCATED) | 4.252664 | 296.11844 | 0.996738 | 10 | vi-da-medium-02 | TDLAS-DA |
00afd115-5796-451a-8af6-2184fb1e5b19 | [0.8552462918879326,0.8554294085332357,0.8555209668558872,0.8556125251785387,0.8556125251785387,0.85(...TRUNCATED) | [0.00017790767788301645,0.00017848504529195146,0.00017906555075318542,0.00017964921855824414,0.00018(...TRUNCATED) | 136.378085 | 294.815911 | 1.005059 | 10 | vi-da-medium-02 | TDLAS-DA |
End of preview. Expand in Data Studio
SPEKTRAN CH4 TDLAS v0
Official benchmark splits of SPEKTRAN -- simulation engines, data standards, and ML benchmarks for physical sensing. This dataset: CH4 TDLAS spectra near 6047 cm-1 (1653 nm, 2v3 band) with literature-anchored instrument noise (etalon fringes, 1/f noise, baseline drift, scan nonlinearity, ADC quantization).
Configs
da (default) -- Direct Absorption
train/validation/test: mixture of three virtual instruments (easy / medium / hard difficulty tiers)test_heldout_instrument: records from a held-out virtual instrument whose parameter ranges are excluded from the training distribution -- the cross-instrument generalization track (T3)
Columns: record_id, raw_scan, absorbance_clean, concentration_ppm,
temperature_K, pressure_atm, path_length_m, instrument_config_id,
technique.
wms -- Wavelength Modulation Spectroscopy (v0.2)
t4_train/t4_validation/t4_test: WMS records with 1f/2f lock-in demodulation signals for the T4 benchmark task (2f concentration regression)
Columns: same as da plus demod_1f, demod_2f.
Load
from datasets import load_dataset
# Direct absorption (T1/T2/T3 tasks)
ds_da = load_dataset("spektran/spektran-ch4-v0", "da")
x = ds_da["train"][0]["raw_scan"] # 2000-point noisy scan
y = ds_da["train"][0]["concentration_ppm"] # regression target
# WMS (T4 task)
ds_wms = load_dataset("spektran/spektran-ch4-v0", "wms")
x_2f = ds_wms["t4_train"][0]["demod_2f"] # 2f demod signal
Benchmark
Tasks, rules, metrics, and the leaderboard live in the SPEKTRAN repository. Baselines: ridge T1 MAE 2.84 ppm (T3 degradation 1.31x), 1D CNN 15.58 ppm (1.82x).
Fully reproducible: every record was generated from pinned configs +
seeds; the repository regenerates this dataset bit-for-bit
(spektran generate, configs under configs/datasets/).
All data is simulation-born (data_origin: simulated); the built-in
approximate CH4 line list is used in v0 (HITRAN-fetched line data planned
for v0.2.x).
License: CC BY 4.0 (data). Engine code: Apache-2.0.
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