Alex Wozniakowski

Currently, I am a software engineer at Apple; and I have interests in applied and computational mathematics, machine learning, and statisics research and applications.

Previously, I obtained my Ph.D. in mathematics from Nanyang Technological University (NTU) in 2022. In my dissertation, I developed a reformulation of additive models and their fitting algorithms, which fused the methods of reroughing, stacking, and additive models in the context of multi-target regression.

Notably, this formulated the non-constant initialization of gradient boosting, which tied the pragmatic tweak of an offset to well-established methods in data analysis, machine learning, and statistics.
In the case that the offset were predictions from Google’s quantum device calibration model, then the formulation enhanced those predictions and decreased test error in a numerical experiment.

Additionally, I am an original member of the Mathematical Picture Language Project at Harvard University, where I established the link between the mathematics of planar algebras and the science of quantum information and computation.

This led to a collaboration in which multiple charged string picture languages were developed.

Latest posts

Selected publications

A reformulation of additive models

Alex Wozniakowski

Nanyang Technological University , 2022

Bib

@phdthesis{2022thesis,
  title = {A reformulation of additive models},
  author = {Wozniakowski, Alex},
  year = {2022},
  school = {Nanyang Technological University},
  url = {https://hdl.handle.net/10356/163311},
}

A new formulation of gradient boosting

Alex Wozniakowski , Jayne Thompson , Mile Gu , and 1 more author

Machine Learning: Science and Technology, 2021

Bib

@article{2021newboosting,
  title = {A new formulation of gradient boosting},
  author = {Wozniakowski, Alex and Thompson, Jayne and Gu, Mile and Binder, Felix C.},
  journal = {Machine Learning: Science and Technology},
  volume = {2},
  issue = {4},
  pages = {045022},
  year = {2021},
  publisher = {IOP Publishing},
  doi = {10.1088/2632-2153/ac1ee9},
  url = {https://iopscience.iop.org/article/10.1088/2632-2153/ac1ee9},
}

Holographic software for quantum networks

Arthur Jaffe , Zhengwei Liu , and Alex Wozniakowski

Science China Mathematics, 2018

Bib

@article{2018holographicsoftware,
  title = {Holographic software for quantum networks},
  author = {Jaffe, Arthur and Liu, Zhengwei and Wozniakowski, Alex},
  journal = {Science China Mathematics},
  volume = {61},
  pages = {593--626},
  year = {2018},
  publisher = {Science China Press},
  doi = {https://doi.org/10.1007/s11425-017-9207-3},
  url = {https://link.springer.com/article/10.1007/s11425-017-9207-3},
}

Quon 3D language for quantum information

Zhengwei Liu , Alex Wozniakowski , and Arthur Jaffe

Proceedings of the National Academy of Sciences, 2017

Bib

@article{2017quon,
  title = {Quon 3D language for quantum information},
  author = {Liu, Zhengwei and Wozniakowski, Alex and Jaffe, Arthur},
  journal = {Proceedings of the National Academy of Sciences},
  volume = {114},
  issue = {10},
  pages = {2497--2502},
  year = {2017},
  publisher = {National Academy of Sciences},
}