Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Errors in Global Positioning System01:26

Errors in Global Positioning System

44
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
44
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

42
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
42
Uncertainty in Measurement: Accuracy and Precision03:37

Uncertainty in Measurement: Accuracy and Precision

73.6K
Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value. 
73.6K
Accuracy and Precision01:52

Accuracy and Precision

8.8K
Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value.  Highly accurate...
8.8K
Contaminants and Errors01:16

Contaminants and Errors

89
Effective sample preparation is crucial for accurate and reliable laboratory analysis. During this process, two significant sources of error can arise: concentration bias from improper sample splitting and contamination caused by methods used to reduce particle size, such as grinding or homogenization. Identifying and minimizing these potential errors is crucial to ensuring the validity of the analysis.
Another key consideration is determining the appropriate number of samples required to...
89
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

27
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
27

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comparative Cardiovascular Safety of Prescription Amphetamine and Methylphenidate Initiation Among Older Adult Medicare Beneficiaries.

Pharmacoepidemiology and drug safety·2026
Same author

Building Public Health Data Dashboards: Tutorial Playbook.

JMIR public health and surveillance·2026
Same author

Lessons From the Community-Engaged, Data-Driven Selection of Evidence-Based Practice Strategies in the HEALing Communities Study.

Journal of public health management and practice : JPHMP·2025
Same author

Mapping the overdose crisis: 6 locations using open medical examiner data.

JAMIA open·2025
Same author

Development and validation of natural language processing algorithms in the national ENACT network.

Journal of clinical and translational science·2025
Same author

The ENACT network is acting on housing instability and the unhoused using the open health natural language processing toolkit.

Journal of clinical and translational science·2024
Same journal

Burden of Stroke in China From 1990 to 2023: Analysis From the Global Burden of Disease Study 2023.

Online journal of public health informatics·2026
Same journal

Tweets Surrounding Pharmaceutical Drug Brands With Top Direct-to-Consumer TV-Advertising Budgets: Social Media Listening Study.

Online journal of public health informatics·2026
Same journal

The Use of Tomographs in Brazil's National Health System: Case Study on the Efficiency of the Public Network in Rio Grande do Norte.

Online journal of public health informatics·2026
Same journal

Transforming Pediatric Care Through AI: Bridging the Digital Divide in Health Informatics.

Online journal of public health informatics·2026
Same journal

Building Enhanced Public Health Data Systems With a Situational Awareness and Learning Tool: Focus Group Study.

Online journal of public health informatics·2026
Same journal

Assessment of the Cultural Nuances in COVID-19 Vaccine Uptake Through a Comparative Analysis of English and Spanish Facebook Posts in Tarrant County, Texas: Longitudinal Study.

Online journal of public health informatics·2026
See all related articles

Related Experiment Video

Updated: Jun 25, 2025

Measurement of Spatial Stability in Precision Grip
09:36

Measurement of Spatial Stability in Precision Grip

Published on: June 4, 2020

3.2K

Geospatial Imprecision With Constraints for Precision Public Health: Algorithm Development and Validation.

Daniel Harris1, Chris Delcher2

  • 1Institute for Biomedical Informatics, University of Kentucky, Lexington, KY, United States.

Online Journal of Public Health Informatics
|May 21, 2024
PubMed
Summary
This summary is machine-generated.

Location obfuscation techniques, meant to protect privacy, can shift patient data into areas with different socioeconomic demographics, impacting public health research accuracy. A modified method is proposed to maintain both privacy and precision.

Keywords:
confidentialitygeocodinggeographicgeographygeospatiallocationlocationslow incomeobfuscationpovertyprecisionprivacysecuritysocial determinants of healthspatial

More Related Videos

An R-Based Landscape Validation of a Competing Risk Model
05:37

An R-Based Landscape Validation of a Competing Risk Model

Published on: September 16, 2022

2.0K
Trajectory Data Analyses for Pedestrian Space-time Activity Study
16:14

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Published on: February 25, 2013

13.5K

Related Experiment Videos

Last Updated: Jun 25, 2025

Measurement of Spatial Stability in Precision Grip
09:36

Measurement of Spatial Stability in Precision Grip

Published on: June 4, 2020

3.2K
An R-Based Landscape Validation of a Competing Risk Model
05:37

An R-Based Landscape Validation of a Competing Risk Model

Published on: September 16, 2022

2.0K
Trajectory Data Analyses for Pedestrian Space-time Activity Study
16:14

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Published on: February 25, 2013

13.5K

Area of Science:

  • Public Health
  • Geospatial Analysis
  • Health Informatics

Background:

  • Location and environmental social determinants of health are critical for individual and community health monitoring.
  • Accurate geographic data is essential for understanding public health issues.
  • Privacy concerns often necessitate location obfuscation, potentially compromising data accuracy.

Purpose of the Study:

  • To assess how location obfuscation techniques unintentionally alter geographic coordinates.
  • To determine the impact of these shifts on socioeconomic demographics of affected areas.
  • To evaluate the consequences for public health research precision.

Main Methods:

  • Utilized the pinwheel obfuscation method on two datasets.
  • Compared demographics of original and obfuscated points using United States Census Bureau data.
  • Analyzed the effect of varying the maximum obfuscation radius.

Main Results:

  • Obfuscation shifted points between low and high poverty regions, with mean poverty rate differences ranging from 6.5% to 11.7%.
  • In Cook County, Illinois, obfuscation created false 'hot spots' for suicide deaths.
  • The extent of demographic shift correlated with the obfuscation radius.

Conclusions:

  • Balancing patient privacy with the need for precise public health data is challenging.
  • A modified obfuscation technique is proposed, constrained to remain within a census-designated region.
  • This approach aims to preserve both privacy and analytical accuracy by preventing demographic shifts.