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

Gaussian Elimination: Problem Solving01:30

Gaussian Elimination: Problem Solving

63
Systems of linear equations in several variables are pivotal in modeling complex scenarios involving multiple unknowns and constraints. Such systems are widely used in various fields to represent relationships where several conditions must be simultaneously satisfied. Each variable in the system corresponds to an unknown quantity, while each equation imposes a linear constraint, leading to a structured approach for analyzing and solving real-world problems.A system of three equations with three...
63
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving01:29

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving

178
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
178
One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation01:24

One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation

907
This lesson introduces two critical methods in pharmacokinetics, the Wagner-Nelson and Loo-Riegelman methods, used for estimating the absorption rate constant (ka) for drugs administered via non-intravenous routes. The Wagner-Nelson method relates ka to the plasma concentration derived from the slope of a semilog percent unabsorbed time plot. However, it is limited to drugs with one-compartment kinetics and can be impacted by factors like gastrointestinal motility or enzymatic degradation.
On...
907
Complex Zeros01:29

Complex Zeros

61
Complex zeros are the solutions to polynomial equations that include imaginary numbers, specifically, numbers of the form a + bi, where a and b are real numbers and i is the imaginary unit defined by i2=-1. These zeros satisfy the equation P(x) = 0, where P(x) is a polynomial with real or complex coefficients. Since the complex number system includes all real numbers, it provides a complete framework for analyzing all possible roots of a polynomial.Every polynomial of degree n≥1 can be...
61
Fundamental Theorem of Algebra01:30

Fundamental Theorem of Algebra

57
The Fundamental Theorem of Algebra is central to the study of polynomial equations, asserting that every non-constant polynomial with complex coefficients has at least one complex zero. This means that a polynomial of degree n ≥ 1, written as:  with an ≠ 0, has at least one solution in the complex number system. Since the set of real numbers is a subset of complex numbers, this theorem applies equally to polynomials with real coefficients.Building on this result, the Complete...
57
Real Zeros of Polynomials01:27

Real Zeros of Polynomials

47
Polynomials are algebraic expressions of terms with variables raised to non-negative integer powers. A central aspect of analyzing polynomial functions is determining their real zeros—values of the variable for which the polynomial evaluates to zero. These values represent the x-intercepts of the polynomial’s graph.The Rational Zeros Theorem lists possible rational solutions for a polynomial equation with integer coefficients. If f(x)=anxn+....+a0​, then every rational zero is...
47

You might also read

Related Articles

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

Sort by
Same author

A descending posterior insular pathway drives sensory hypersensitivity in neuropathic pain.

Brain : a journal of neurology·2026
Same author

ShenQiWan alleviates chondrocyte pyroptosis in knee osteoarthritis by inhibiting the NF-κB/NLRP3 signaling pathway.

Histology and histopathology·2026
Same author

An MRI-visible nanotheranostic establishes a self-amplifying pyroptosis-STING-IFN-β circuit for CD8<sup>+</sup> T cell immunoactivation.

Materials today. Bio·2026
Same author

NAD<sup>+</sup> Metabolism Licenses Zygotic Genome Activation via PARP7-Mediated ADP-Ribosylation of UHRF1 in Mouse Early Embryos.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Analysis of the Effect of Stepwise Refined Nursing on the Severity of Ureteral Stent-Related Symptom Clusters After Flexible Ureteroscopic Lithotripsy.

Archivos espanoles de urologia·2026
Same author

The Emerging Role of Nanocarrier-Based Delivery Systems for cGAS-STING Activation in Cancer Immunotherapy.

International journal of nanomedicine·2026

Related Experiment Video

Updated: Nov 20, 2025

Author Spotlight: Advancing Alzheimer's Research &#8211; Exploring Early Detection and Multi-Omics Approaches
09:47

Author Spotlight: Advancing Alzheimer's Research – Exploring Early Detection and Multi-Omics Approaches

Published on: December 15, 2023

1.5K

Encoder-X: Solving Unknown Coefficients Automatically in Polynomial Fitting by Using an Autoencoder.

Guojun Wang, Weijun Li, Liping Zhang

    IEEE Transactions on Neural Networks and Learning Systems
    |January 26, 2021
    PubMed
    Summary
    This summary is machine-generated.

    A new neural network method, Encoder-X, improves polynomial fitting stability and speed. This approach accurately represents curves and surfaces for various modeling tasks.

    More Related Videos

    Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
    06:45

    Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

    Published on: October 28, 2022

    2.0K
    Decoding Natural Behavior from Neuroethological Embedding
    08:00

    Decoding Natural Behavior from Neuroethological Embedding

    Published on: October 3, 2025

    285

    Related Experiment Videos

    Last Updated: Nov 20, 2025

    Author Spotlight: Advancing Alzheimer's Research &#8211; Exploring Early Detection and Multi-Omics Approaches
    09:47

    Author Spotlight: Advancing Alzheimer's Research – Exploring Early Detection and Multi-Omics Approaches

    Published on: December 15, 2023

    1.5K
    Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
    06:45

    Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

    Published on: October 28, 2022

    2.0K
    Decoding Natural Behavior from Neuroethological Embedding
    08:00

    Decoding Natural Behavior from Neuroethological Embedding

    Published on: October 3, 2025

    285

    Area of Science:

    • Computational mathematics
    • Machine learning
    • Data representation

    Background:

    • Polynomial functions are crucial for representing curves and surfaces in modeling.
    • Existing neural network methods for polynomial fitting lack stability and convergence speed.

    Purpose of the Study:

    • To introduce Encoder-X, a novel neural network-based method for robust polynomial fitting.
    • To address limitations of current neural network approaches in terms of stability and convergence.

    Main Methods:

    • Developed Encoder-X, a special autoencoder model comprising a neural network encoder and a polynomial decoder.
    • Treated polynomial coefficients as feature values, enabling fitting through the autoencoder structure.
    • Trained the encoder by minimizing the error between predicted and true function values.

    Main Results:

    • Encoder-X demonstrated superior stability, convergence, and accuracy compared to existing methods.
    • The method successfully performed both explicit and implicit polynomial fitting.
    • Validated Encoder-X's effectiveness in enhancing polynomial representation for modeling tasks.

    Conclusions:

    • Encoder-X offers a stable and efficient solution for polynomial fitting.
    • The proposed method advances neural network applications in mathematical modeling.
    • Encoder-X shows potential for broader applications beyond polynomial fitting.