backward pass computation

简明释义

后退计算法［估计工期时间方法之一］

英英释义

例句

1.To implement gradient descent, you must understand the backward pass computation 反向传播计算 process.

要实现梯度下降，您必须理解 backward pass computation 反向传播计算 过程。

2.The efficiency of a deep learning model largely depends on how well it performs backward pass computation 反向传播计算.

深度学习模型的效率在很大程度上取决于它执行 backward pass computation 反向传播计算 的效果。

3.In neural networks, the backward pass computation 反向传播计算 is crucial for updating weights based on the error gradient.

在神经网络中，backward pass computation 反向传播计算 对于根据误差梯度更新权重至关重要。

4.During training, the backward pass computation 反向传播计算 helps adjust the model parameters.

在训练过程中，backward pass computation 反向传播计算 有助于调整模型参数。

5.The algorithm requires a backward pass computation 反向传播计算 to minimize the loss function effectively.

该算法需要进行一次 backward pass computation 反向传播计算 以有效地最小化损失函数。

作文

In project management, especially when using techniques like the Critical Path Method (CPM), understanding the concept of backward pass computation is crucial for effective scheduling and resource allocation. The backward pass computation refers to a method used to determine the latest finish times and latest start times for each activity in a project. This process is essential because it helps project managers identify the flexibility available in the schedule and understand how delays in one task may impact others. By calculating these times, managers can prioritize tasks and allocate resources more effectively.To perform a backward pass computation, one typically starts with the last activity in the project. The latest finish time for this activity is set to its earliest finish time, which is calculated during the forward pass. From there, the manager moves backward through the project, subtracting the duration of each activity from the latest finish time to establish the latest start time. This backward calculation continues until all activities have been considered.The significance of backward pass computation lies in its ability to reveal the critical path of a project. The critical path consists of activities that cannot be delayed without affecting the overall project timeline. By identifying these activities, project managers can focus their attention on ensuring that they are completed on time. Any delays in the critical path will directly lead to a delay in the project's completion, making it essential to monitor these tasks closely.Moreover, the results of a backward pass computation provide valuable insights into the amount of float or slack time available for non-critical activities. Float time is the amount of time that a task can be delayed without causing a delay to the subsequent tasks or the project's overall completion. Understanding float time allows project managers to make informed decisions about resource allocation and scheduling, enabling them to optimize project performance.In practical terms, the implementation of backward pass computation can significantly enhance a project's efficiency. For instance, if a project manager discovers that a particular task has a substantial amount of float time, they might choose to allocate resources to other critical tasks that require immediate attention. Conversely, if an activity on the critical path is at risk of being delayed, the manager can take proactive measures to mitigate the impact, such as reallocating resources or adjusting timelines.In conclusion, mastering the concept of backward pass computation is vital for anyone involved in project management. It not only aids in effective scheduling but also enhances overall project control by identifying critical paths and float times. As businesses continue to navigate complex projects with tight deadlines, the ability to perform a backward pass computation will remain an indispensable skill in the toolkit of successful project managers. By leveraging this technique, managers can ensure that projects are completed on time and within budget, ultimately leading to greater organizational success.

在项目管理中，特别是在使用关键路径法（CPM）等技术时，理解向后传递计算的概念对于有效的调度和资源分配至关重要。向后传递计算是指一种用于确定项目中每个活动的最晚完成时间和最晚开始时间的方法。这个过程是必不可少的，因为它帮助项目经理识别计划中的灵活性，并理解一个任务的延迟如何影响其他任务。通过计算这些时间，经理可以优先考虑任务并更有效地分配资源。要执行向后传递计算，通常从项目中的最后一个活动开始。该活动的最晚完成时间被设置为其最早完成时间，这个时间是在前向传递过程中计算的。从那里，经理向后移动，通过从最晚完成时间中减去每个活动的持续时间来建立最晚开始时间。这一向后计算将持续进行，直到所有活动都被考虑在内。向后传递计算的重要性在于它能够揭示项目的关键路径。关键路径由不能延迟而不影响整体项目时间表的活动组成。通过识别这些活动，项目经理可以将注意力集中在确保它们按时完成上。关键路径上的任何延迟都会直接导致项目完成的延迟，因此密切监控这些任务至关重要。此外，向后传递计算的结果提供了有关非关键活动的浮动或松弛时间的宝贵见解。浮动时间是指任务可以延迟而不导致后续任务或项目总体完成的延迟的时间。了解浮动时间使项目经理能够做出明智的资源分配和调度决策，从而优化项目绩效。在实际操作中，实施向后传递计算可以显著提高项目的效率。例如，如果项目经理发现某个特定任务有大量浮动时间，他们可能会选择将资源分配给其他需要立即关注的关键任务。相反，如果关键路径上的某项活动面临延迟风险，经理可以采取主动措施来减轻影响，例如重新分配资源或调整时间表。总之，掌握向后传递计算的概念对于任何参与项目管理的人来说都是至关重要的。它不仅有助于有效的调度，还通过识别关键路径和浮动时间增强整体项目控制。随着企业继续应对复杂项目和紧迫的截止日期，执行向后传递计算的能力将始终是成功项目经理工具箱中的一项不可或缺的技能。通过利用这一技术，经理可以确保项目按时完成并在预算内，从而最终实现更大的组织成功。