Scikit-learn - 无法在 Python 中使用 fetch_openml 加载 MNIST 原始数据集

Question

我正在尝试在 Python 中加载 MNIST 原始数据集。 sklearn.datasets.fetch_openml 函数似乎对此不起作用。

这是我正在使用的代码-

 from sklearn.datasets import fetch_openml
dataset = fetch_openml("MNIST Original")

我收到这个错误-

 File "generateClassifier.py", line 11, in <module>
  dataset = fetch_openml("MNIST Original")
  File "/home/inglorion/.local/lib/python3.5/site-
packages/sklearn/datasets/openml.py", line 526, in fetch_openml
data_info = _get_data_info_by_name(name, version, data_home)
  File "/home/inglorion/.local/lib/python3.5/site-
packages/sklearn/datasets/openml.py", line 302, in
_get_data_info_by_name
    data_home)
  File "/home/inglorion/.local/lib/python3.5/site-
packages/sklearn/datasets/openml.py", line 169, in
_get_json_content_from_openml_api
    raise error
  File "/home/inglorion/.local/lib/python3.5/site-
packages/sklearn/datasets/openml.py", line 164, in
_get_json_content_from_openml_api
    return _load_json()
  File "/home/inglorion/.local/lib/python3.5/site-
packages/sklearn/datasets/openml.py", line 52, in wrapper
    return f()
  File "/home/inglorion/.local/lib/python3.5/site-
packages/sklearn/datasets/openml.py", line 160, in _load_json
    with closing(_open_openml_url(url, data_home)) as response:
  File "/home/inglorion/.local/lib/python3.5/site-
packages/sklearn/datasets/openml.py", line 109, in _open_openml_url
with closing(urlopen(req)) as fsrc:
  File "/usr/lib/python3.5/urllib/request.py", line 163, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python3.5/urllib/request.py", line 472, in open
    response = meth(req, response)
  File "/usr/lib/python3.5/urllib/request.py", line 582, in
http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python3.5/urllib/request.py", line 510, in error
    return self._call_chain(*args)
  File "/usr/lib/python3.5/urllib/request.py", line 444, in
_call_chain
    result = func(*args)
  File "/usr/lib/python3.5/urllib/request.py", line 590, in
http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
        urllib.error.HTTPError: HTTP Error 400: Bad Request

我怎样才能解决这个问题？或者，还有其他方法可以将 MNIST 数据集加载到 Python 中吗？

我正在使用 scikit-learn 的 0.20.2 版。

一般来说，我对编程还比较陌生，所以如果我能得到一个简单的答案，我将不胜感激。谢谢！

原文由 Inglorion 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

尝试

mnist = fetch_openml('mnist_784')

我通过 https://www.openml.org/ 在 https://www.openml.org/d/554 下找到了它

原文由 bav av 发布，翻译遵循 CC BY-SA 4.0 许可协议