Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Vector Algebra: Method of Components01:08

Vector Algebra: Method of Components

15.1K
It is cumbersome to find the magnitudes of vectors using the parallelogram rule or using the graphical method to perform mathematical operations like addition, subtraction, and multiplication. There are two ways to circumvent this algebraic complexity. One way is to draw the vectors to scale, as in navigation, and read approximate vector lengths and angles (directions) from the graphs. The other way is to use the method of components.
In many applications, the magnitudes and directions of...
15.1K
Vector Components in the Cartesian Coordinate System01:29

Vector Components in the Cartesian Coordinate System

21.9K
Vectors are usually described in terms of their components in a coordinate system. Even in everyday life, we naturally invoke the concept of orthogonal projections in a rectangular coordinate system. For example, if someone gives you directions for a particular location, you will be told to go a few km in a direction like east, west, north, or south, along with the angle in which you are supposed to move. In a rectangular (Cartesian) xy-coordinate system in a plane, a point in a plane is...
21.9K
Multicompartment Models: Overview01:14

Multicompartment Models: Overview

252
Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
252
Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

620
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
620
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

147
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
147
Cartesian Vector Notation01:28

Cartesian Vector Notation

950
Cartesian vector notation is a valuable tool in mechanical engineering for representing vectors in three-dimensional space, performing vector operations such as determining the gradient, divergence, and curl, and expressing physical quantities such as the displacement, velocity, acceleration, and force. By using Cartesian vector notation, engineers can more easily analyze and solve problems in various areas of mechanical engineering, including dynamics, kinematics, and fluid mechanics. This...
950

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Frame-wise multi-echo distortion correction for superior functional MRI.

Imaging neuroscience (Cambridge, Mass.)·2026
Same author

Predicting future cognitive impairment in preclinical Alzheimer's disease using amyloid PET and MRI: A multisite machine learning study.

Neurobiology of aging·2026
Same author

Hierarchical Barycentric Multimodal Representation Learning for Medical Image Analysis.

medRxiv : the preprint server for health sciences·2026
Same author

A unified model for staging amyloid and tau pathology in Alzheimer's disease.

medRxiv : the preprint server for health sciences·2026
Same author

Simultaneous Real-time Imaging of Neurofluid and Neurovascular Dynamics Using Ultrafast Flow-weighted Echo-Planar Imaging.

bioRxiv : the preprint server for biology·2026
Same author

Biomarkers.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2025
Same journal

Interpretable Failure Detection with Human-Level Concepts.

Proceedings of the ... AAAI Conference on Artificial Intelligence. AAAI Conference on Artificial Intelligence·2026
Same journal

ChatCLIDS: Simulating Persuasive AI Dialogues to Promote Closed-Loop Insulin Adoption in Type 1 Diabetes Care.

Proceedings of the ... AAAI Conference on Artificial Intelligence. AAAI Conference on Artificial Intelligence·2026
Same journal

Beyond Accuracy: On the Effects of Fine-tuning Towards Vision-Language Model's Prediction Rationality.

Proceedings of the ... AAAI Conference on Artificial Intelligence. AAAI Conference on Artificial Intelligence·2026
Same journal

<i>OrgaCast</i>: A Trustworthy Spatiotemporal Diffusion Model for Fluorescence Organoid Forecasting.

Proceedings of the ... AAAI Conference on Artificial Intelligence. AAAI Conference on Artificial Intelligence·2026
Same journal

Apo2Mol: 3D Molecule Generation via Dynamic Pocket-Aware Diffusion Models.

Proceedings of the ... AAAI Conference on Artificial Intelligence. AAAI Conference on Artificial Intelligence·2026
Same journal

iDT-diet: Toward Personalized Health Forecasting-An Intelligent Digital Twin Model for Diet-Influenced Biomarker Trajectories (Student Abstract).

Proceedings of the ... AAAI Conference on Artificial Intelligence. AAAI Conference on Artificial Intelligence·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Sep 8, 2025

Cross-Modal Multivariate Pattern Analysis
13:51

Cross-Modal Multivariate Pattern Analysis

Published on: November 9, 2011

20.1K

Autoencoder variacional multimodal: una vista baricéntrica

Peijie Qiu1, Wenhui Zhu2, Sayantan Kumar1

  • 1Washington University in St. Louis.

Proceedings of the ... AAAI Conference on Artificial Intelligence. AAAI Conference on Artificial Intelligence
|August 20, 2025
PubMed
Resumen
Este resumen es generado por máquina.

Este estudio introduce un nuevo marco de barycenter para los autoencoders variacionales multimodales (VAE), que ofrece un enfoque flexible para el aprendizaje de representaciones de múltiples tipos de datos, incluso con información faltante.

Más Videos Relacionados

Visualization Method for Proprioceptive Drift on a 2D Plane Using Support Vector Machine
07:05

Visualization Method for Proprioceptive Drift on a 2D Plane Using Support Vector Machine

Published on: October 27, 2016

9.3K
Author Spotlight: Advancing Large-Scale Neural Dynamics Through HD-MEA Technology
09:44

Author Spotlight: Advancing Large-Scale Neural Dynamics Through HD-MEA Technology

Published on: March 8, 2024

5.0K

Videos de Experimentos Relacionados

Last Updated: Sep 8, 2025

Cross-Modal Multivariate Pattern Analysis
13:51

Cross-Modal Multivariate Pattern Analysis

Published on: November 9, 2011

20.1K
Visualization Method for Proprioceptive Drift on a 2D Plane Using Support Vector Machine
07:05

Visualization Method for Proprioceptive Drift on a 2D Plane Using Support Vector Machine

Published on: October 27, 2016

9.3K
Author Spotlight: Advancing Large-Scale Neural Dynamics Through HD-MEA Technology
09:44

Author Spotlight: Advancing Large-Scale Neural Dynamics Through HD-MEA Technology

Published on: March 8, 2024

5.0K

Área de la Ciencia:

  • Inteligencia artificial
  • Aprendizaje automático
  • Visión por computadora
  • Procesamiento del lenguaje natural

Sus antecedentes:

  • Los fenómenos del mundo real implican múltiples modalidades de señal (por ejemplo, visión, sonido).
  • El aprendizaje de representación multimodal utilizando autoencoders variacionales (VAEs) está ganando fuerza, especialmente para manejar modalidades que faltan.
  • Las EVA multimodales existentes a menudo se basan en métodos de agregación de expertos como el Producto de Expertos (PoE) o la Mezcla de Expertos (MoE).

Objetivo del estudio:

  • Proponer una nueva formulación teórica para los EVA multimodales basada en el concepto de baricentros.
  • Demostrar que los métodos PoE y MoE existentes son ejemplos específicos de baricentros.
  • Introducir un enfoque de baricentro más flexible utilizando diferentes medidas de divergencia, en particular la distancia de Wasserstein.

Principales métodos:

  • Desarrolló una formulación teórica genérica para VAE multimodal utilizando baricentros.
  • Se demostró que el producto de expertos (PoE) y la mezcla de expertos (MoE) son casos especiales de baricentros derivados de la divergencia KL.
  • Introdujo y exploró el baricentro de Wasserstein, utilizando la distancia de 2-Wasserstein para mejorar el aprendizaje de la representación.

Principales resultados:

  • La formulación de baricentro propuesta extiende los métodos existentes al permitir opciones de divergencia más flexibles.
  • El baricentro de Wasserstein captura efectivamente las representaciones invariables de modalidad y específicas de modalidad al preservar la geometría de las distribuciones unimodal.
  • Las evaluaciones empíricas de tres puntos de referencia multimodales confirmaron el rendimiento superior del método propuesto.

Conclusiones:

  • El marco baricentro ofrece un enfoque más generalizado y flexible para las EVA multimodales en comparación con los métodos basados en expertos.
  • El baricentro de Wasserstein proporciona un aprendizaje de representación mejorado al preservar mejor la geometría distributiva.
  • El método propuesto demuestra una eficacia significativa en las tareas de aprendizaje de representación multimodal, en particular con modalidades que faltan.