Matryoshka: Uncovering Relevant Features in Data Lakes to Enhance Machine Learning Applications
Summary: Matryoshka jointly discovers and selects nonredundant features from data lakes across ML tasks, avoiding join materialization via Gram-matrix sketches and incremental proxy models. It improves prediction quality 19.3% on average and runs up to 120× faster on join-intensive workloads. (summarized by gpt-5.6-luna on Aug 28 2026)
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Authors
- 1. Fedor Turchenko (Berlin Institute for the Foundations of Learning and Data; Technical University of Berlin)
- 2. Runjie Zhang (University of California San Diego)
- 3. Binger Chen (Berlin Institute for the Foundations of Learning and Data; Technical University of Berlin)
- 4. Matthias Boehm (Berlin Institute for the Foundations of Learning and Data; Technical University of Berlin)
- 5. Babak Salimi (University of California San Diego)
- 6. Amir Shaikhha (University of Edinburgh)
- 7. Ziawasch Abedjan (Berlin Institute for the Foundations of Learning and Data; Technical University of Berlin)
BibTeX Citation
@article{turchenko_vldb26,
title = {{Matryoshka: Uncovering Relevant Features in Data Lakes to Enhance Machine Learning Applications}},
author = {Turchenko, Fedor and Zhang, Runjie and Chen, Binger and Boehm, Matthias and Salimi, Babak and Shaikhha, Amir and Abedjan, Ziawasch},
journal = {PVLDB},
series = {{VLDB} '26},
volume = {19},
number = {11},
pages = {3704--3717},
doi = {10.14778/3836663.3836719},
url = {https://doi.org/10.14778/3836663.3836719},
year = {2026}
}
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