David Wadden
Research Scientist at University of Washington
United States
Summary
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RockstarDavid Wadden is a research scientist and NLP engineer with 11 years of experience building data-driven systems for information extraction and coreference. He contributes to high-impact open-source projects such as AllenNLP and dygiepp, implementing robust dataset loaders, numerical-stability fixes, and batching/pruning improvements for variable-length inputs. His work sits at the intersection of model engineering and preprocessing infrastructure, ensuring that complex span-based NER, relation, and event extraction models run reliably in practice. Based in the United States, he combines deep research sensibilities with pragmatic engineering—often tackling subtle edge cases (e.g., NaNs and division-by-zero) that keep production research pipelines healthy.
11 years of coding experience
Github Skills (18)
named-entity-extraction10
pytorch10
named-entity-recognition10
entity-extraction10
relation-extraction10
python10
machine-learning10
data-loading10
deep-learning10
data-processing10
nlp10
data-science9
json9
allennlp9
unit-testing8
Programming languages (7)
Github contributions (5)
allenai/allennlp
Mar 2019 - Sep 2020
An open-source NLP research library, built on PyTorch.
Role in this project:
ML Engineer
ML EngineerContributions:5 commits, 7 PRs, 13 comments in 1 year 5 months
Contributions summary:David primarily contributed to the AllenNLP library, focusing on machine learning model-related features and bug fixes. They implemented enhancements to the `Pruner` class, enabling it to handle variable-length inputs within a minibatch, addressing a specific need in NLP tasks such as coreference resolution. Moreover, the user addressed potential numerical instability issues related to the `MismatchedEmbedder` by correcting a division-by-zero error and adding fixes for NaNs. The user also worked on the Tensorboard writer to address logging edge cases.
nlppytorchtransformerspythonbert
dwadden/multivers
Dec 2021 - Jan 2023
Contributions:36 commits, 22 pushes, 1 branch in 1 year 2 months
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