Statistical analysis

News and Updates

A close-up of a virus particle shows spikes protruding from the particle's surface and blobby sugars that cling to the spikes.

New NIST Method Can Better Identify Sneaky Sugars on Viruses’ Spiky Weapons

September 28, 2023

A better picture of the sugars can increase our understanding of how humans get infected by the virus behind COVID-19 and other pathogens.

Man wearing safety glasses leans toward a tabletop optical laser setup.

Spotlight: Meet a Mentor for Summer Undergraduates: NIST Quantum Physicist Krister Shalm

January 23, 2023

Quantum physicist Krister Shalm has a few spots in his laboratory for motivated undergrads. Do you know any STEM-centric college students who might be

Where Once Were Black Boxes, NIST’s New LANTERN Illuminates

June 22, 2022

Researchers at the National Institute of Standards and Technology (NIST) have developed a new statistical tool that they have used to predict protein function.

Events

Abstract blue image Advancing UV Germicidal Efficacy Measurement: Metrology, Standards, Data and Protocols

Workshop: Advancing UV Germicidal Efficacy Measurement: Metrology, Standards, Data and Protocols

Tue, Mar 18 - Thu, Mar 20 2025

The U.S. Department of Commerce, National Institute of Standards and Technology (NIST) and the International Ultraviolet

Clipart of Person smoking Cannabis and images of cars

Building a Path Forward for Meaningful Cannabis Breathalyzer Realization

Wed, Apr 16 - Thu, Apr 17 2025

We are bringing together participants from government, forensic laboratories, industry, academia, law enforcement

Projects and Programs

Standards Development to Ensure Reliable Breath Analysis in the Field

Ongoing

Numerous volatile organic compounds (VOCs) have been identified in human breath. These compounds can be produced by the body or by organisms in the body (e.g., bacteria or viruses) and provide a non-invasive window into human health. Inexpensive point-of-care devices are being developed to diagnose

Statistical methods for quantitative near-field scanning probe microwave microscopy for material genomics

Ongoing

DESCRIPTION: Statistical efforts focus on extracting information from NSSM images contaminated by additive noise and artifacts. We developed robust implementations of local likelihood and local regression methods to level images, remove scan-dependent artifacts, and denoise images. Our methods

Advanced Microwave Radiometer Metrology

Ongoing

Using the NIST radiometer as a test bed, we studied the stability of temperature measurements for infrequent calibrations and developed stability metrics. We developed models to simulate output temperatures from the NIST radiometer, thus enabling the study of radiometer output without having to

Uncertainty Estimation in Interlaboratory Studies

Ongoing

DESCRIPTION: Data sets consisting of multivariate samples occur increasingly often in applications in particular in in interlaboratory studies known as Key Comparisons in which the key comparison reference value (KCRV) is to be determined. The vector samples, being independent realizations of an

Publications

Value assignment and uncertainty evaluation for certified reference gas mixtures

September 9, 2024

Author(s)

Christina Cecelski, Jennifer Carney, Antonio Possolo

The procedures used to assign values to certified reference gas mixtures and to evaluate their associated uncertainties, which are described in ISO 6143, and

Benford's law in atomic spectra and opacity databases

April 21, 2024

Author(s)

Yuri Ralchenko, Jean-Christophe Pain

The intriguing law of anomalous numbers, also named Benford's law, states that the significant digits of data follow a logarithmic distribution favoring the

Improving the TENOR of Labeling: Re-evaluating Topic Models for Content Analysis

March 23, 2024

Author(s)

Zongxia Li, Andrew Mao, Jordan Boyd-Graber, Daniel Stephens, Emily Walpole, Alden A. Dima, Juan Fung

Topic models are a popular tool for understanding text collections, but their evaluation has been a point of contention. Automated evaluation metrics such as

Continuous Mobile Manipulator Performance Measurement Data

January 18, 2024

Author(s)

Omar Aboul-Enein, Henry Medeiros, Mili Shah, Ya-Shian Li-Baboud, Roger Bostelman, Ann Virts

Mobile manipulators, which are robotic systems integrating an automatic or autonomous mobile base with a manipulator, can potentially enhance automation in many

Statistical analysis

News and Updates

New NIST Method Can Better Identify Sneaky Sugars on Viruses’ Spiky Weapons

Spotlight: Meet a Mentor for Summer Undergraduates: NIST Quantum Physicist Krister Shalm

Where Once Were Black Boxes, NIST’s New LANTERN Illuminates

Events

Workshop: Advancing UV Germicidal Efficacy Measurement: Metrology, Standards, Data and Protocols

Building a Path Forward for Meaningful Cannabis Breathalyzer Realization

Projects and Programs

Standards Development to Ensure Reliable Breath Analysis in the Field

Statistical methods for quantitative near-field scanning probe microwave microscopy for material genomics

Advanced Microwave Radiometer Metrology

Uncertainty Estimation in Interlaboratory Studies

Publications

Value assignment and uncertainty evaluation for certified reference gas mixtures

Benford's law in atomic spectra and opacity databases

Improving the TENOR of Labeling: Re-evaluating Topic Models for Content Analysis

Continuous Mobile Manipulator Performance Measurement Data

Software

Smart Investment Tool

Cost Assessment Tool for Sustainable Manufacturing (CATS)

Extreme Winds and Wind Effects on Structures