fix bug: The dataset_id is already part of the path here.

[dignfei]

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Motivation

Please describe the motivation of this PR and the goal you want to achieve through this PR.
The bug caused a runtime failure and prevented the correct retrieval of the data file's path.

Modification

Please briefly describe what modification is made in this PR.

fix the bug.The dataset_id is already part of the path here.

Checklist

Before PR:

• [√ ] Pre-commit or other linting tools are used to fix the potential lint issues.
• [√ ] Bug fixes are fully covered by unit tests, the case that causes the bug should be added in the unit tests.
• [ √] The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
• [ ]√ The documentation has been modified accordingly, like docstring or example tutorials.

After PR:

• If the modification has potential influence on downstream or other related projects, this PR should be tested with those projects.
• CLA has been signed and all committers have signed the CLA in this PR.