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key research areas

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We help labs advance frontier models by working with domain experts to design and build complex, realistic datasets that drive model performance.

initiatives

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Open benchmarks, conversations, and research for real-world AI performance.

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Our podcast series at the intersection of AI evaluation, data quality, and real-world impact.
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DEEP RESEARCH Expertise

Technical advisors and distinguished affiliates

Stephen Bach headshot

Stephen Bach

Brown University
Eliot Horowitz Assistant Professor, Computer Science Department
Jason Fries headshot

Jason Fries

Stanford University
Assistant Professor of Biomedical Data Science and of Medicine
Jared Dunnmon headshot

Jared Dunnmon

Co-Founder & Chief Scientist, Stealth Startup
Prev. Dir. of AI at DIU
Fred Sala headshot

Fred Sala

Chief Scientist
,
Snorkel AI
Assistant Professor @ University of Wisconsin-Madison
Chris Ré headshot

Chris Ré

Co-Founder
,
Snorkel AI
Professor @ Stanford University
Ludwig Schmidt headshot

Ludwig Schmidt

Stanford University · LAION
Stanford researcher and LAION collaborator
Karthik Narasimhan headshot

Karthik Narasimhan

Princeton University
Professor of Computer Science
Yu Su headshot

Yu Su

Ohio State University
Associate Professor of Computer Science and Engineering
Lewis Tunstall headshot

Lewis Tunstall

Hugging Face
Machine Learning Engineer
PUBLICATIONS

Browse research blogs
and academic papers

Type: All Types
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Mitigating Source Bias for Fairer Weak Supervision
Weak supervision overcomes the label bottleneck, enabling efficient development of training sets. Millions of models trained on such datasets have been deployed in the real world and interact with users on a daily basis. However, the techniques that make weak supervision attractive—such as integrating any source of signal to estimate unknown labels—also ensure that the pseudolabels it produces are highly biased. Surprisingly, given everyday use and the potential for increased bias, weak supervision has not been studied from the point of view of fairness. This work begins such a study. Our departure point is the observation that even when a...
Research Paper
Mitigating Source Bias for Fairer Weak Supervision

Weak supervision overcomes the label bottleneck, enabling efficient development of training sets. Millions of models trained on such datasets have been deployed in the real world and interact with users on a daily basis. However, the techniques that make weak supervision attractive—such as integrating any source of signal to estimate unknown labels—also ensure that the pseudolabels it produces are highly…

Oct 20, 2023

C. Shin, et al.

Learn more about Mitigating Source Bias for Fairer Weak Supervision
Efficient representation learning for higher-order data with simplicial complexes
Graph-based machine learning is experiencing explosive growth, driven by impressive recent developments and wide applicability. Typical approaches for graph representation learning predominantly focus on pairwise interactions, while neglecting the patterns of higher-order interactions common to complex systems. This paper explores many-body interaction models, centering on simplicial complexes. From a theoretical point of view, we offer a pair of insights illustrating why higher-order models are necessary, why non-graph-based models generally cannot generalize well, while graph-based models may be able to do so. We conduct experiments on synthetic data, co-citation networks, co-authorship networks and gene-disease associations and show that simplicial complexes with...
Research Paper
Efficient representation learning for higher-order data with simplicial complexes

Graph-based machine learning is experiencing explosive growth, driven by impressive recent developments and wide applicability. Typical approaches for graph representation learning predominantly focus on pairwise interactions, while neglecting the patterns of higher-order interactions common to complex systems. This paper explores many-body interaction models, centering on simplicial complexes. From a theoretical point of view, we offer a pair of insights illustrating…

Oct 20, 2023

R. Yang, et al.

Learn more about Efficient representation learning for higher-order data with simplicial complexes
Good Data from Bad Models: Foundations of Threshold-based Auto-labeling
Creating large-scale high-quality labeled datasets is a major bottleneck in supervised machine learning workflows. Auto-labeling systems are a promising way to reduce reliance on manual labeling for dataset construction. Threshold-based auto-labeling, where validation data obtained from humans is used to find a threshold for confidence above which the data is machine-labeled, is emerging as a popular solution used widely in practice [SGT22, QCG20, SS22]. Given the long shelf-life and diverse usage of the resulting datasets, understanding when the data obtained by such auto-labeling systems can be relied on is crucial. In this work, we analyze threshold-based auto-labeling systems and derive...
Research Paper
Good Data from Bad Models: Foundations of Threshold-based Auto-labeling

Creating large-scale high-quality labeled datasets is a major bottleneck in supervised machine learning workflows. Auto-labeling systems are a promising way to reduce reliance on manual labeling for dataset construction. Threshold-based auto-labeling, where validation data obtained from humans is used to find a threshold for confidence above which the data is machine-labeled, is emerging as a popular solution used widely in…

Oct 20, 2023

H. Vishwakarma, et al.

Learn more about Good Data from Bad Models: Foundations of Threshold-based Auto-labeling
Domain Generalization with Nuclear Norm Regularization
The ability to generalize to unseen domains is crucial for machine learning systems, especially when we only have data from limited training domains and must deploy the resulting models in the real world. In this paper, we study domain generalization via the classic empirical risk minimization (ERM) approach with a simple regularizer based on the nuclear norm of the learned features from the training set. Theoretically, we provide intuitions on why nuclear norm regularization works better than ERM and ERM with L2 weight decay in linear settings. Empirically, we show that nuclear norm regularization achieves state-of-the-art average accuracy compared to...
Research Paper
Domain Generalization with Nuclear Norm Regularization

The ability to generalize to unseen domains is crucial for machine learning systems, especially when we only have data from limited training domains and must deploy the resulting models in the real world. In this paper, we study domain generalization via the classic empirical risk minimization (ERM) approach with a simple regularizer based on the nuclear norm of the learned…

Oct 20, 2023

Z. Shi, et al.

Learn more about Domain Generalization with Nuclear Norm Regularization
Automl for climate change: A call to action
The challenge that climate change poses to humanity has spurred a rapidly developing field of artificial intelligence research focused on climate change applications. The climate change AI (CCAI) community works on a diverse, challenging set of problems which often involve physics-constrained ML or heterogeneous spatiotemporal data. It would be desirable to use automated machine learning (AutoML) techniques to automatically find high-performing architectures and hyperparameters for a given dataset. In this work, we benchmark popular AutoML libraries on three high-leverage CCAI applications: climate modeling, wind power forecasting, and catalyst discovery. We find that out-of-the-box AutoML libraries currently fail to meaningfully surpass...
Research Paper
Automl for climate change: A call to action

The challenge that climate change poses to humanity has spurred a rapidly developing field of artificial intelligence research focused on climate change applications. The climate change AI (CCAI) community works on a diverse, challenging set of problems which often involve physics-constrained ML or heterogeneous spatiotemporal data. It would be desirable to use automated machine learning (AutoML) techniques to automatically find…

Oct 20, 2023

R. Tu, et al.

Learn more about Automl for climate change: A call to action
AutoML Decathlon: Diverse Tasks, Modern Methods, and Efficiency at Scale
The vision of Automated Machine Learning (AutoML) is to produce high performing ML pipelines that require very little human involvement or domain expertise to use. Competitions and benchmarks have been critical tools for accelerating progress in AutoML. However, much of the prior work on AutoML competitions has focused on well-studiedd omains in machine learning such as vision and language—these are domains which have benefited from several years of ML pipeline design by domain experts, which brings the usage of AutoML into question in the first place. Recently, AutoML for diverse tasks has emerged as an important research area that aims...
Research Paper
AutoML Decathlon: Diverse Tasks, Modern Methods, and Efficiency at Scale

The vision of Automated Machine Learning (AutoML) is to produce high performing ML pipelines that require very little human involvement or domain expertise to use. Competitions and benchmarks have been critical tools for accelerating progress in AutoML. However, much of the prior work on AutoML competitions has focused on well-studiedd omains in machine learning such as vision and language—these are…

Oct 20, 2023

N. Roberts, et al.

Learn more about AutoML Decathlon: Diverse Tasks, Modern Methods, and Efficiency at Scale
Causal Omnivore: Fusing Noisy Estimates of Spurious Correlations
Spurious correlations are one of the biggest pain points for users of modern machine learning. To handle this issue, many approaches attempt to learn features that are causally linked to the prediction variable. Such techniques, however, suffer from various flaws—they are often prohibitively complex or based on heuristics and strong assumptions that may fail in practice. There is no onesize-fits-all causal feature identification approach. To address this challenge, we propose a simple way to fuse multiple noisy estimates of causal features. Our approach treats the underlying causal structure as a latent variable and exploits recent developments in estimating latent structures...
Research Paper
Causal Omnivore: Fusing Noisy Estimates of Spurious Correlations

Spurious correlations are one of the biggest pain points for users of modern machine learning. To handle this issue, many approaches attempt to learn features that are causally linked to the prediction variable. Such techniques, however, suffer from various flaws—they are often prohibitively complex or based on heuristics and strong assumptions that may fail in practice. There is no onesize-fits-all…

Oct 20, 2023

D. Adila, et al.

Learn more about Causal Omnivore: Fusing Noisy Estimates of Spurious Correlations
NAS-Bench-360: Benchmarking Neural Architecture Search on Diverse Tasks
Most existing neural architecture search (NAS) benchmarks and algorithms prioritize well-studied tasks, e.g. image classification on CIFAR or ImageNet. Thismakes the performance of NAS approaches in more diverse areas poorly understood. In this paper, we present NAS-Bench-360, a benchmark suite to evaluate methods on domains beyond those traditionally studied in architecture search, and use it to address the following question: do state-of-the-art NAS methods perform well on diverse tasks? To construct the benchmark, we curate ten tasks spanning a diverse array of application domains, dataset sizes, problem dimensionalities, and learning objectives. Each new task is carefully chosen to interoperate with...
Research Paper
NAS-Bench-360: Benchmarking Neural Architecture Search on Diverse Tasks

Most existing neural architecture search (NAS) benchmarks and algorithms prioritize well-studied tasks, e.g. image classification on CIFAR or ImageNet. Thismakes the performance of NAS approaches in more diverse areas poorly understood. In this paper, we present NAS-Bench-360, a benchmark suite to evaluate methods on domains beyond those traditionally studied in architecture search, and use it to address the following question:…

Oct 20, 2023

R. Tu, et al.

Learn more about NAS-Bench-360: Benchmarking Neural Architecture Search on Diverse Tasks
Tool documentation enables zero-shot tool-usage with large language models
Today, large language models (LLMs) are taught to use new tools by providing a few demonstrations of the tool’s usage. Unfortunately, demonstrations are hard to acquire, and can result in undesirable biased usage if the wrong demonstration is chosen. Even in the rare scenario that demonstrations are readily available, there is no principled selection protocol to determine how many and which ones to provide. As tasks grow more complex, the selection search grows combinatorially and invariably becomes intractable. Our work provides an alternative to demonstrations: tool documentation. We advocate the use of tool documentation—descriptions for the individual tool usage—over demonstrations....
Research Paper
Tool documentation enables zero-shot tool-usage with large language models

Today, large language models (LLMs) are taught to use new tools by providing a few demonstrations of the tool’s usage. Unfortunately, demonstrations are hard to acquire, and can result in undesirable biased usage if the wrong demonstration is chosen. Even in the rare scenario that demonstrations are readily available, there is no principled selection protocol to determine how many and…

Oct 20, 2023

CY. Hseih, et al.

Learn more about Tool documentation enables zero-shot tool-usage with large language models
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