Dataset Viewer
The dataset viewer is not available for this split.
Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code: StreamingRowsError
Exception: ArrowInvalid
Message: Float value 83.200000 was truncated converting to int64
Traceback: Traceback (most recent call last):
File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
return get_rows(
dataset=dataset,
...<4 lines>...
column_names=column_names,
)
File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
return func(*args, **kwargs)
File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
File "/src/services/worker/src/worker/utils.py", line 483, in safe_iter
yield from ds.decode(False) if ds.features else ds
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2951, in __iter__
for key, example in ex_iterable:
^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2461, in __iter__
for key, pa_table in self._iter_arrow():
~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2486, in _iter_arrow
for key, pa_table in self.ex_iterable._iter_arrow():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 547, in _iter_arrow
for key, pa_table in iterator:
^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 430, in _iter_arrow
for key, pa_table in self.generate_tables_fn(**gen_kwags):
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
self._cast_table(pa_table, json_field_paths=json_field_paths),
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
pa_table = table_cast(pa_table, self.info.features.arrow_schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
return cast_table_to_schema(table, schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2312, in cast_table_to_schema
cast_array_to_feature(
~~~~~~~~~~~~~~~~~~~~~^
table[name] if name in table_column_names else pa.array([None] * len(table), type=schema.field(name).type),
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
feature,
^^^^^^^^
)
^
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 1861, in wrapper
return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
~~~~^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2152, in cast_array_to_feature
return array_cast(
array,
...<2 lines>...
allow_decimal_to_str=allow_decimal_to_str,
)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 1863, in wrapper
return func(array, *args, **kwargs)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2015, in array_cast
return array.cast(pa_type)
~~~~~~~~~~^^^^^^^^^
File "pyarrow/array.pxi", line 1186, in pyarrow.lib.Array.cast
File "/usr/local/lib/python3.14/site-packages/pyarrow/compute.py", line 414, in cast
return call_function("cast", [arr], options, memory_pool)
File "pyarrow/_compute.pyx", line 604, in pyarrow._compute.call_function
File "pyarrow/_compute.pyx", line 399, in pyarrow._compute.Function.call
result = GetResultValue(
File "pyarrow/error.pxi", line 155, in pyarrow.lib.pyarrow_internal_check_status
return check_status(status)
File "pyarrow/error.pxi", line 92, in pyarrow.lib.check_status
raise convert_status(status)
pyarrow.lib.ArrowInvalid: Float value 83.200000 was truncated converting to int64Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
Mine Dewatering Pump Group Operating Condition Calculation Verification Dataset
This structured JSON dataset records mine dewatering system conditions, pipeline parameters, pump performance curves and group configurations, along with candidate calculations to verify and their reference calculation basis. It covers key measures including static head, pipeline losses, total head, operating flow, pump group head, efficiency, and power, supporting checks of calculation errors against permitted tolerances. It is intended for training and evaluating calculation outcome verifiers for mine dewatering equipment, as well as testing professional calculation workflows and quality control.
Technical Specifications
| Field | Type | Description |
|---|---|---|
| validation_results | object | Errors and pass status obtained by comparing candidate calculation results with reference values using the permitted relative error. |
| drainage_conditions | object | Original operating parameters used to calculate the dewatering system static head and hydraulic power. |
| pipeline_parameters | object | Original dimensions and resistance parameters for the suction and discharge pipes, used to estimate pipeline losses. |
| pump_performance_data | object | Records sampled performance curve points for an individual pump and the number of pumps connected in series or parallel. |
| calculated_total_head_m | number | Total head required by the pump group, calculated by combining the static head and pipeline losses at the operating flow, in meters. |
| calculated_static_head_m | number | Static head calculated from the discharge outlet elevation, sump water level elevation, and outlet pressure head, in meters. |
| calculated_pipeline_loss_m | number | Combined friction and local head losses calculated from pipeline length, diameter, and resistance parameters at the calculated operating flow, in meters. |
| candidate_operating_results | object | Pump group operating conditions and power values submitted for comparison with reference calculations. |
| reference_calculation_basis | object | Records the calculation notes, permitted tolerances, and reference identifiers used to verify results. |
| calculated_pump_group_head_m | number | Operating head calculated from the number of pumps in series and the individual pump performance curve, in meters. |
| calculated_efficiency_percent | number | Pump group operating efficiency derived from the individual pump performance curve at the operating point, as a percentage. |
| calculated_hydraulic_power_kw | number | Hydraulic power calculated from water density, gravitational acceleration, operating flow, and total head, in kilowatts. |
| calculated_operating_flow_m3_h | number | Pump group operating flow calculated at the intersection of the system curve and pump performance curve, in cubic meters per hour. |
| calculated_group_shaft_power_kw | number | Total pump group shaft power derived from the calculated hydraulic power and operating efficiency, in kilowatts. |
Compliance Statement
| Authorization Type | CC-BY-NC-SA 4.0 (Attribution–NonCommercial–ShareAlike) |
| Commercial Use | Requires exclusive subscription or authorization contract (monthly or per-invocation charging) |
| Privacy and Anonymization | No PII, no real company names, simulated scenarios follow industry standards |
| Compliance System | Compliant with China's Data Security Law / EU GDPR / supports enterprise data access logs |
Source & Contact
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