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Displaying 1 - 25 of 54547

A Data Structure for Integrity Protection with Erasure Capability

May 20, 2022
D. Richard Kuhn
This document describes a data structure, referred to as a data block matrix, that supports the ongoing addition of hash-linked records while also allowing for the deletion of arbitrary records, thereby preserving hash-based integrity assurance that other

NIST Cybersecurity Role-based Training Study Presentation

May 20, 2022
Jody Jacobs, Julie Haney, Susanne M. Furman
This presentation is for the May 17, 2022 Federal Information Security Educators (FISSEA) Spring Forum hosted by NIST. This presentation will present our preliminary findings from our Role-Based Training Study.

Gauging the difficulty of image segmentation

May 19, 2022
Marek Franaszek
Image segmentation is the first step in a complex process of object recognition. This report presents a method to gauge the difficulty of segmentation by calculating a scalar parameter Q for an image. This parameter depends on a distribution of the

SCAP Composer User Guide

May 16, 2022
Joshua Lubell
SCAP Composer is a software application from the National Institute of Standards and Technology (NIST) for creating Security Content Automation Protocol (SCAP – pronounced "ess-cap") source data stream collections. A source data stream collection is a

Assessment of the reason for the vitrification of a wall at a hillfort. The example of Broborg in Sweden

May 9, 2022
Rolf Sjoblom, Eva Hjarthner-Holdar, Carolyn Pearce, Jamie Weaver, Erik Ogenhall, John McCloy, Jose Marcial, Edward Vicenzi, Michael Schweiger, Albert Kruger
It was discovered around 250 years ago that some of the rock material in the walls of some hillforts had been subjected to such high temperature that it had vitrified. This prompted a debate as to the reason for it that is still going on today: did the

IEC 61850 Profile for Distributed Energy Resources Supporting IEEE 1547

May 4, 2022
Hasan Giray Oral, DJ Anand, Cuong Nguyen, Avi Gopstein, Christoph Brunner, Alexander Apostolov
This document provides an IEC 61850 profile for a Distributed Energy Resource supporting IEEE 1547 and the grid support functions therein. The profile utilizes the IEC 61850 data object model and maps the requirements of IEEE 1547 to the data object model

Urbanized knowledge syndrome: Mental models of human-environment interactions lack diversity and systems thinking among urban coastal residents

May 4, 2022
Payam Aminpour Mohammadabadi, Steven Gray, Michael Beck, Kelsi Furman, Ismini Tsakiri, Rachel Gittman, Jennifer Helgeson, Jonathan Grabowski, Lauren Josephs, Matthias Ruth, Steven Syphers
Coastal ecosystems and their natural habitats support high levels of ecological biodiversity and provide resources and services that are indispensable to human wellbeing, comprising complex social-ecological systems. However, shoreline armoring, land

Value of information: Exploring behavioral and social factors

May 4, 2022
Pierre Glynn, Charles Rhodes, Scott Chiavacci, Jennifer Helgeson, Carl Shapiro, Crista Straub
There is growing interest within and beyond the economics community in assessing the value of information (VOI) used in decision making. VOI assessments often do not consider the complex behavioral and social factors that affect the perception, valuation
Displaying 1 - 25 of 54547