自动化再训练流程
从新数据一直到重新部署模型
自动化再训练流程 是 CoddyKit 上的免费 Deep Learning Academy 课时。 这是第 4 节课，共 4 节。 你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。 这是 Deep Learning Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Deep Learning Academy 课程共包含 4 节课。
本课时的部分内容尚未翻译，以英文显示。
Models Need Refreshing
Once drift appears, a model must learn from new data. Doing this by hand every time is slow and error-prone, so we build a pipeline. 🔄
What a Pipeline Is
A retraining pipeline is just a chain of automatic steps. Each stage runs in order, passing its output to the next with no human pressing buttons.
Stage One: Get Fresh Data
The pipeline starts by pulling the latest examples. This ingestion step gathers new records and versions them so the run stays reproducible.
def fetch_data():
return load_latest("prod_logs")Stage Two: Train
Next the pipeline trains a fresh model on the combined data. This training step reuses your loop but runs unattended on a schedule.
def train(data):
model = build_model()
return fit(model, data)Stage Three: Evaluate
Never ship blindly. An evaluation step scores the new model on a held-out set so you know it is genuinely better, not just newer.
score = evaluate(model, test_set)Gate on Quality
Promote a model only if it earns it. A simple gate compares the new score to the live one and blocks any regression from reaching users.
if score > current_score:
deploy(model)Trigger on a Schedule
Pipelines often run on a clock. A cron trigger fires nightly or weekly so retraining happens steadily without anyone remembering to start it.
0 3 * * 0 python pipeline.pyOr Trigger on Drift
Even smarter, let monitoring start the pipeline. When your drift check fires an alert, it kicks off retraining as an event, so you react fast.
Orchestrators Run It All
Tools like Airflow or Prefect connect the stages, retry failures, and show a clear graph of what ran, when, and whether it succeeded.
Close the Loop
A deployed model feeds new logs, monitoring spots drift, the pipeline retrains, and a better model ships. This self-healing loop is the goal of MLOps.
Automation Frees You
With the loop running, you stop firefighting and start improving. The system keeps models fresh while you focus on real experiments. 🚀
Quick Check
What stops a worse model from being deployed automatically?
Recap
You learned to automate retraining: fetch data, train, evaluate, gate on quality, trigger on schedule or drift, and close the MLOps loop. 🎉
常见问题解答
「自动化再训练流程」课时是免费的吗？
是的 — 「自动化再训练流程」的完整文本可在网页上免费阅读。要进行交互式练习（内置代码编辑器和全天候 AI 导师）并解锁 Deep Learning Academy 课程的其余内容，请升级到 CoddyKit PRO。 Deep Learning Academy 课程共包含 4 节课。
「自动化再训练流程」这节课中我会学到什么？
从新数据一直到重新部署模型 你通过在浏览器中直接运行的动手代码来练习 Deep Learning Academy，全天候 AI 导师会在你学习这节课的过程中回答你的问题。
学习 Deep Learning Academy 需要有经验吗？
无需任何先前经验。CoddyKit 上的 Deep Learning Academy 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。 这是第 4 节课，共 4 节。
「自动化再训练流程」课时需要多长时间？
大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。
我能在这节 Deep Learning Academy 课中编写并运行代码吗？
能。每节 Deep Learning Academy 课都包含内置代码编辑器，你可以在浏览器中直接编写并运行真实代码，并获得即时 AI 反馈 — 无需本地设置。