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Related Concept Videos

Prediction Intervals01:03

Prediction Intervals

The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y. 
The...
Evaluating Limits by Direct Substitution01:29

Evaluating Limits by Direct Substitution

In the analysis of functions that represent continuous physical phenomena, it is often necessary to determine the output value as the input approaches a specific point. When a combination of algebraic terms defines the function and exhibits no discontinuities or abrupt changes near the point of interest, the limit of the function can be evaluated directly. This process, known as direct substitution, involves replacing the variable in the expression with the value it approaches.Direct...
Distance Problem01:29

Distance Problem

When an object's velocity changes over time, the total distance traveled can be determined by summing small displacement intervals over short increments. This approach approximates the true distance through numerical summation and the use of integral calculus. An estimate of the total displacement can be obtained by measuring velocity at regular intervals and multiplying each value by the corresponding time step.If a runner accelerates over the first three seconds of a race, speed measurements...
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Application of Linearization and Approximation

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Root-Locus Method

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Related Experiment Video

Updated: Jun 17, 2026

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
11:41

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

State estimation using interval analysis and belief-function theory: application to dynamic vehicle localization.

Ghalia Nassreddine1, Fahed Abdallah, Thierry Denoux

  • 1UMR CNRS 6599 HEUDIASYC, Université de Technologie de Compiègne, 60205 Compiègne Cedex, France. gnassred@hds.utc.fr

IEEE Transactions on Systems, Man, and Cybernetics. Part B, Cybernetics : a Publication of the IEEE Systems, Man, and Cybernetics Society
|December 17, 2009
PubMed
Summary

This study introduces a novel nonlinear state estimation method using belief functions and interval analysis for accurate vehicle localization. It offers guaranteed computations and improved accuracy over existing methods.

Related Experiment Videos

Last Updated: Jun 17, 2026

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
11:41

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

Area of Science:

  • Engineering
  • Computer Science
  • Mathematics

Background:

  • Nonlinear state estimation is crucial for applications like vehicle localization.
  • Existing methods like bounded-error and probabilistic approaches have limitations in handling uncertainties.
  • Accurate representation of partial information on uncertainties is needed.

Purpose of the Study:

  • To present a new nonlinear state estimation approach using belief-function theory and interval analysis.
  • To improve the accuracy and reliability of vehicle localization.
  • To provide guaranteed computations while handling uncertainties effectively.

Main Methods:

  • Utilizing belief structures represented by axis-aligned boxes with associated masses.
  • Propagating focal sets in system equations via interval arithmetics and constraint-satisfaction.
  • Applying the method to land vehicle localization using Global Positioning System (GPS) and dead reckoning sensors.

Main Results:

  • The proposed method provides more accurate vehicle position estimates than the bounded-error approach.
  • It retains the essential feature of guaranteed computations.
  • Performance was comparable to particle filters with similar running times.

Conclusions:

  • The new method is a viable alternative for vehicle localization.
  • It offers advantages over both bounded-error and probabilistic Monte Carlo methods.
  • It accurately represents partial information on model and measurement uncertainties.