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.

Projects and Programs

Statistical Process Monitoring for Autocorrelated Data

Ongoing

DESCRIPTION: Process monitoring is very important for industries. Statistical methodologies have been used to monitor various production process successfully. The majority of statistical process monitoring techniques assume that the process data are free of autocorreation. However, this assumption

Qualification for AM Feedstocks, Machines and Processes

Completed

Objective - To develop, utilize, and analyze test methods and protocols for characterizing the feedstocks, machines, and processes in metal-based additive manufacturing to enable optimum usage and to reduce the cost and time needed for qualification. What is the Technical Idea? Qualification of AM

Quantifying Uncertainty in Accelerometer Sensitivity Studies

Ongoing

DESCRIPTION: International Key Comparisons are performed. The key comparison reference value for charge sensitivity as a function of frequency and the accompanying uncertainty are the principal objectives of these studies. In a suggested mixed effects model several methods for evaluation of this

Metrology for Real-Time Monitoring of Additive Manufacturing

Completed

Objective To develop and disseminate metrology methods, tools, data, and standards applied to in-situ monitoring of AM processes, such that manufacturers and their customers can accurately and precisely determine the quality of the fabrication process and resulting parts. What is the Technical Idea

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

Projects and Programs

Statistical Process Monitoring for Autocorrelated Data

Qualification for AM Feedstocks, Machines and Processes

Quantifying Uncertainty in Accelerometer Sensitivity Studies

Metrology for Real-Time Monitoring of Additive Manufacturing

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