Master IASD · DataLab 2026

Collaborative filtering

A1 · Daily results

Updated 02 October 2026 · 05:06 CESTDaily run around 05:00 · Paris time

Podium

Lowest RMSE wins. Student groups and professor references compete together.

1
Professor reference

BestOf 2023 · 1

0.803 RMSE

2
Professor reference

BestOf 2025 · 1

0.816 RMSE

3
Professor reference

BestOf 2025 · 2

0.830 RMSE

Daily progress

RMSE over time · lower is better. Dots are daily evaluations, not GitHub activity. Failed runs leave gaps; no submission means no point.

Results

Scores use hidden evaluation ratings; the input contains train + test. Accuracy is the percentage of exactly predicted ratings. These measurements support your analysis; code itself is not graded.

Hover or focus the ! icon to read an error. Click it to copy the message.

RankStatusSource
—
teachShaicoderaphael-ux
Group 42026 group
———Error dependencies: RuntimeError: Process exited with code 1. Looking in indexes: https://pypi.org/simple, https://download.pytorch.org/whl/cpu ERROR: Could not find a version that satisfies the requirement torch==2.0.1 (from versions: 2.5.0, 2.5.0+cpu, 2.5.1, 2.5.1+cpu, 2.6.0, 2.6.0+cpu, 2.7.0, 2.7.0+cpu, 2.7.1, 2.7.1+cpu, 2.8.0, 2.8.0+cpu, 2.9.0, 2.9.0+cpu, 2.9.1, 2.9.1+cpu, 2.10.0, 2.10.0+cpu, 2.11.0, 2.11.0+cpu, 2.12.0, 2.12.0+cpu, 2.12.1, 2.12.1+cpu, 2.13.0, 2.13.0+cpu, 2.14.0, 2.14.0+cpu, 2.14.1, 2.14.1+cpu) ERROR: No matching distribution found for torch==2.0.1 Repositoryac3a461c
—
sha098213
altf42026 group
———Error dependencies: RuntimeError: Process exited with code 1. Looking in indexes: https://pypi.org/simple, https://download.pytorch.org/whl/cpu ERROR: Could not find a version that satisfies the requirement torch==2.0.1 (from versions: 2.5.0, 2.5.0+cpu, 2.5.1, 2.5.1+cpu, 2.6.0, 2.6.0+cpu, 2.7.0, 2.7.0+cpu, 2.7.1, 2.7.1+cpu, 2.8.0, 2.8.0+cpu, 2.9.0, 2.9.0+cpu, 2.9.1, 2.9.1+cpu, 2.10.0, 2.10.0+cpu, 2.11.0, 2.11.0+cpu, 2.12.0, 2.12.0+cpu, 2.12.1, 2.12.1+cpu, 2.13.0, 2.13.0+cpu, 2.14.0, 2.14.0+cpu, 2.14.1, 2.14.1+cpu) ERROR: No matching distribution found for torch==2.0.1 Repository4bb6f07e
—
Puuuu-cr
blue2026 group
———Error dependencies: RuntimeError: Process exited with code 1. Looking in indexes: https://pypi.org/simple, https://download.pytorch.org/whl/cpu ERROR: Could not find a version that satisfies the requirement torch==2.0.1 (from versions: 2.5.0, 2.5.0+cpu, 2.5.1, 2.5.1+cpu, 2.6.0, 2.6.0+cpu, 2.7.0, 2.7.0+cpu, 2.7.1, 2.7.1+cpu, 2.8.0, 2.8.0+cpu, 2.9.0, 2.9.0+cpu, 2.9.1, 2.9.1+cpu, 2.10.0, 2.10.0+cpu, 2.11.0, 2.11.0+cpu, 2.12.0, 2.12.0+cpu, 2.12.1, 2.12.1+cpu, 2.13.0, 2.13.0+cpu, 2.14.0, 2.14.0+cpu, 2.14.1, 2.14.1+cpu) ERROR: No matching distribution found for torch==2.0.1 Repository32df45a8
—
LiLinduo
data-doodlers2026 group
———Error dependencies: RuntimeError: Process exited with code 1. Looking in indexes: https://pypi.org/simple, https://download.pytorch.org/whl/cpu ERROR: Could not find a version that satisfies the requirement torch==2.0.1 (from versions: 2.5.0, 2.5.0+cpu, 2.5.1, 2.5.1+cpu, 2.6.0, 2.6.0+cpu, 2.7.0, 2.7.0+cpu, 2.7.1, 2.7.1+cpu, 2.8.0, 2.8.0+cpu, 2.9.0, 2.9.0+cpu, 2.9.1, 2.9.1+cpu, 2.10.0, 2.10.0+cpu, 2.11.0, 2.11.0+cpu, 2.12.0, 2.12.0+cpu, 2.12.1, 2.12.1+cpu, 2.13.0, 2.13.0+cpu, 2.14.0, 2.14.0+cpu, 2.14.1, 2.14.1+cpu) ERROR: No matching distribution found for torch==2.0.1 Repository831934c0
—
maitsel-gif
force-push2026 group
———Error dependencies: RuntimeError: Process exited with code 1. Looking in indexes: https://pypi.org/simple, https://download.pytorch.org/whl/cpu ERROR: Could not find a version that satisfies the requirement torch==2.0.1 (from versions: 2.5.0, 2.5.0+cpu, 2.5.1, 2.5.1+cpu, 2.6.0, 2.6.0+cpu, 2.7.0, 2.7.0+cpu, 2.7.1, 2.7.1+cpu, 2.8.0, 2.8.0+cpu, 2.9.0, 2.9.0+cpu, 2.9.1, 2.9.1+cpu, 2.10.0, 2.10.0+cpu, 2.11.0, 2.11.0+cpu, 2.12.0, 2.12.0+cpu, 2.12.1, 2.12.1+cpu, 2.13.0, 2.13.0+cpu, 2.14.0, 2.14.0+cpu, 2.14.1, 2.14.1+cpu) ERROR: No matching distribution found for torch==2.0.1 Repository4a40eaee
—
victor-jourdan
ocaml2026 group
———Error dependencies: RuntimeError: Process exited with code 1. Looking in indexes: https://pypi.org/simple, https://download.pytorch.org/whl/cpu ERROR: Could not find a version that satisfies the requirement torch==2.0.1 (from versions: 2.5.0, 2.5.0+cpu, 2.5.1, 2.5.1+cpu, 2.6.0, 2.6.0+cpu, 2.7.0, 2.7.0+cpu, 2.7.1, 2.7.1+cpu, 2.8.0, 2.8.0+cpu, 2.9.0, 2.9.0+cpu, 2.9.1, 2.9.1+cpu, 2.10.0, 2.10.0+cpu, 2.11.0, 2.11.0+cpu, 2.12.0, 2.12.0+cpu, 2.12.1, 2.12.1+cpu, 2.13.0, 2.13.0+cpu, 2.14.0, 2.14.0+cpu, 2.14.1, 2.14.1+cpu) ERROR: No matching distribution found for torch==2.0.1 Repositoryf136826b
1
Professor reference
BestOf 2023 · 1Reference
0.8030.0041.58Success Frozen reference8b6fb772
2
Professor reference
BestOf 2025 · 1Reference
0.8160.0096.71Success Frozen referenceab53d900
3
Professor reference
BestOf 2025 · 2Reference
0.8300.024.88Success Frozen reference55d5e886
4
Professor reference
BestOf 2024 · 1Reference
0.8540.00153.39Success Frozen reference1204cccc
5
Professor reference
BestOf 2023 · 2Reference
0.86026.1397.67Success Frozen reference2fa4d93a
6
Professor reference
BestOf 2024 · 2Reference
0.86625.2741.83Success Frozen reference7869cd93
7
Professor reference
averageReference
1.0370.000.87Success Frozen reference
8
Professor reference
randomReference
1.84013.760.92Success Frozen reference
BestOf references are preserved benchmarks from previous years. Their current scores are recomputed with this platform; archived scores remain in the history.

Run 20261002T030001Z · Execution limit: 1200 s per group. Student runs: 4 CPU threads · 12 GiB host memory · CPU only. Historical references use one A40 GPU when required. Dependency installation time is not included in the reported execution time.