相关实验视频

Updated: Jul 22, 2025

A Swin Transformer-Based Model for Thyroid Nodule Detection in Ultrasound Images
04:23

A Swin Transformer-Based Model for Thyroid Nodule Detection in Ultrasound Images

Published on: April 21, 2023

1.9K

自主监督的时间序列表示学习通过交叉重建变压器学习.

Wenrui Zhang, Ling Yang, Shijia Geng

    IEEE transactions on neural networks and learning systems
    |July 21, 2023
    PubMed
    概括

    时间序列的自我监督表示学习是通过交叉重建变压器 (CRT) 增强的. 这种新的方法使用跨域重建和实例歧视,在真实世界数据集上提高了2-9%的性能.

    更多相关视频

    Swin-PSAxialNet: An Efficient Multi-Organ Segmentation Technique04:48

    Swin-PSAxialNet: An Efficient Multi-Organ Segmentation Technique

    Published on: July 5, 2024

    442

    相关概念视频

    Reconstruction of Signal using Interpolation01:10

    Reconstruction of Signal using Interpolation

    Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
    242
    Transformers01:26

    Transformers

    A device that transforms voltages from one value to another using induction is called a transformer. A transformer consists of two separate coils, or windings, wrapped around the same soft iron core. However, they are electrically insulated from each other.
    The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
    1.1K
    Types Of Transformers01:16

    Types Of Transformers

    Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
    If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
    However, if this ratio is less than one, the transformer is said to be a step-down...
    1.0K
    Time-Series Graph00:54

    Time-Series Graph

    A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct a time-series graph, one must look at both pieces of a paired data set. The horizontal axis is used to plot the time increments, and the vertical axis is used to plot the values of the variable that one is measuring. By using the axes in this way, each point on the graph will correspond to time and a measured quantity. The points on the graph...
    4.4K
    Energy Losses in Transformers01:21

    Energy Losses in Transformers

    In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
    There are four main reasons for energy losses in transformers.
    The first cause can be  the high resistance of the...
    904
    The Ideal Transformer01:26

    The Ideal Transformer

    In single-phase two-winding transformers, two windings are coiled around a magnetic core characterized by cross-sectional area A and magnetic permeability μ. A phasor current i1 enters the left winding while i2 exits the right winding, establishing the fundamental working of the transformer through electromagnetic principles.
    Ampere's Law forms the basis of understanding the magnetic field within the transformer. It states that the integral of the magnetic field intensity's...
    433