Epochs是指在机器学习中，将训练数据集分成多个时期进行训练的操作。
1. 定义：Epochs是指模型在整个数据集上训练的次数。例如，如果 epochs = 10，则模型将在整个数据集上进行 10 次训练。Epoch 的数量往往是根据经验和调试得到最优结果的。
例句：
- The model was trained for 50 epochs on the dataset.
- Increasing the number of epochs can lead to overfitting.
- We decided to use 10 epochs for our training process.
- The accuracy of the model improved significantly after 20 epochs of training.
- The data was divided into three epochs for training, validation and testing.
2. 迭代：Epochs与迭代有很多类似之处，都涉及到重复运行算法或模型的过程。但是 Epochs 主要是指经过一个完整的数据集的训练过程，而迭代是指在数据集的子集（称为批次）上运行算法或模型。
例句：
- Each epoch consisted of several iterations on the dataset.
- The model was trained for 1000 iterations per epoch.
- Increasing the batch size can reduce the number of iterations per epoch.
- Our training process involved 5 iterations per epoch.
- We used mini-batch gradient descent with 32 examples per iteration and 10 epochs.
3. 改进模型：Epoch 可以帮助改进模型的性能和准确性。每个 Epoch 的训练过程都会更新模型的参数，这有助于优化算法。
例句：
- The model's accuracy improved after each epoch of training.
- Increasing the number of epochs can help the model learn more complex relationships among the data.
- We used early stopping to prevent the model from overfitting after multiple epochs.
- The model was trained for multiple epochs to ensure that it learned the most important features of the dataset.
- The model's loss function decreased after each epoch, indicating improved performance.
4. 检查点：Epochs 可以用于在训练过程中创建检查点（即保存模型的状态），以便在训练停止或重新开始时恢复训练。这样可以确保在出现问题时不会损失所有的训练进度。
例句：
- We saved a checkpoint after every 10 epochs of training.
- Our training process was interrupted, but we were able to resume from the last saved checkpoint.
- We used Keras Callbacks to automatically save checkpoints during training.
- The model was trained for 50 epochs, and we selected the best performance checkpoint for testing.
- If the training process fails, we can restart from the last saved checkpoint to minimize the loss of training progress.
【词性及解释】名词，时代，时期
【读音】èpochs
【例句】
1. The Industrial Revolution marks a significant epoch in human history.（工业革命标志着人类历史上一个重要的时代。）
2. The fall of the Berlin Wall was an epoch-making event.（柏林墙的倒塌是一个划时代的事件。）
epochs在中文中有"时期、的复数形式"的意思，还有时代的意思，在线读音是[epochs]，epochs在英语中经常以名词形式出现，在《郎文当代初级英语辞典》中，共找到66个与epochs相关的例句。
Epochs的释义
1.时期
例句:The Ming Dynasty, which reigned China for 276 years, is described as one of the greatest epochs with orderly governance and social stability in human history. (明朝统治中国xx年，被人们描绘成人类历史上治理有序、社会稳定的最伟大的时代之一。)
2.的复数形式
例句:REE geochemistry of silicated quartz reflects intensity and multiple epochs of gold mineralization in Wulonggou gold ore area. (五龙沟金矿区硅化石英的稀土元素地球化学特征可较好地反映金矿化程度和多期次成矿特性。)
3.时代
例句:I have spent my life getting to know diverse literatures of different epochs. (我花费一生时间来逐渐了解不同时代形形色色的文学。)
用法及短语
epochs一般作为名词使用，如在tectonic epochs(构造期)等常见短语中出现较多。
| tectonic epochs | 构造期 |
例句
1. I have spent my life getting to know diverse literatures of different epochs. (翻译:我花费一生时间来逐渐了解不同时代形形色色的文学。)
2. Holocene sediments contain remnants of more recent plants and animals, so it's pretty easy to differentiate geologically between these two Epochs. (翻译:全新世的沉积物中含有较新的动植物遗迹，因此很容易从地质学上区分这两个时期。)
3. Vigour, energy , vitality : all the great civilisations -- or civilising epochs -- have had a weight of energy behind them . (翻译:活力、生气、生命力：所有伟大的文明或文明时期，都有丰沛的活力做后盾。)
4. From these studies we defined two great epochs of the plastic history of the brain. (翻译:通过这些研究，我们确定了大脑塑造期 的两个重要时期。)
5. Insanity in individuals is quite rare... but in groups, parties, nations, and epochs, it is a rule. (翻译:疯狂的人是相当罕见... 但是在团体，政党，国家， 和时代，这是一个规律。)
6. In search of the truth, they are wandering in the culture labyrinths of various ethnos and epochs, trying to combine some incompatible cultural layers. (翻译:他们在寻找真理，他们在不同族群和不同时代组成的迷宫中徘徊，试图融合那些不能调和的文化成分。)
7. From these studies we defined two great epochs of the plastic history of the brain. (翻译:通过这些研究，我们确定了大脑塑造期 的两个重要时期。)
8. Watching us all the evidence from different epochs and from various sources, including scientific, all seem to suggest that something quite important happens around 2012. (翻译:审视我们拥有的不同时代的证据 它们来自不同的源头, 包括了科学上的, 所有这些都指出)
9. The 2. 4 scheduler divided time into epochs, and within each epoch, every task was allowed to execute up to its time slice. (翻译:调度器将时间分割成epoch，每个epoch中，每个任务允许执行到其时间切片用完。)
近义词&反义词
epochs作为名词的时候，其近义词以及反义词有0、epoch/1、s等。
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