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The dataset generation failed because of a cast error
Error code: DatasetGenerationCastError
Exception: DatasetGenerationCastError
Message: An error occurred while generating the dataset
All the data files must have the same columns, but at some point there are 1 new columns ({'industry'}) and 1 missing columns ({'country'}).
This happened while the csv dataset builder was generating data using
hf://datasets/Engagemii/ai-visibility-scores/by_industry.csv (at revision 94d028774d9035215109ff4282f43219f3a85e73), [/tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/by_country.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/by_country.csv), /tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/by_industry.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/by_industry.csv), /tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/by_state.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/by_state.csv), /tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/overview.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/overview.csv), /tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/score_distribution.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/score_distribution.csv)]
Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1800, in _prepare_split_single
writer.write_table(table)
File "/usr/local/lib/python3.12/site-packages/datasets/arrow_writer.py", line 765, in write_table
self._write_table(pa_table, writer_batch_size=writer_batch_size)
File "/usr/local/lib/python3.12/site-packages/datasets/arrow_writer.py", line 773, in _write_table
pa_table = table_cast(pa_table, self._schema)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/table.py", line 2321, in table_cast
return cast_table_to_schema(table, schema)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/table.py", line 2249, in cast_table_to_schema
raise CastError(
datasets.table.CastError: Couldn't cast
industry: string
brand_count: int64
avg_score: double
-- schema metadata --
pandas: '{"index_columns": [{"kind": "range", "name": null, "start": 0, "' + 614
to
{'country': Value('string'), 'brand_count': Value('int64'), 'avg_score': Value('float64')}
because column names don't match
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1347, in compute_config_parquet_and_info_response
parquet_operations = convert_to_parquet(builder)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 980, in convert_to_parquet
builder.download_and_prepare(
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 882, in download_and_prepare
self._download_and_prepare(
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 943, in _download_and_prepare
self._prepare_split(split_generator, **prepare_split_kwargs)
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1646, in _prepare_split
for job_id, done, content in self._prepare_split_single(
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1802, in _prepare_split_single
raise DatasetGenerationCastError.from_cast_error(
datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
All the data files must have the same columns, but at some point there are 1 new columns ({'industry'}) and 1 missing columns ({'country'}).
This happened while the csv dataset builder was generating data using
hf://datasets/Engagemii/ai-visibility-scores/by_industry.csv (at revision 94d028774d9035215109ff4282f43219f3a85e73), [/tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/by_country.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/by_country.csv), /tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/by_industry.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/by_industry.csv), /tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/by_state.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/by_state.csv), /tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/overview.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/overview.csv), /tmp/hf-datasets-cache/medium/datasets/14389363177294-config-parquet-and-info-Engagemii-ai-visibility-s-51f6e2fb/hub/datasets--Engagemii--ai-visibility-scores/snapshots/94d028774d9035215109ff4282f43219f3a85e73/score_distribution.csv (origin=hf://datasets/Engagemii/ai-visibility-scores@94d028774d9035215109ff4282f43219f3a85e73/score_distribution.csv)]
Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
country string | brand_count int64 | avg_score float64 |
|---|---|---|
United States | 155,593 | 4.7 |
United Arab Emirates | 22,238 | 4.9 |
Argentina | 12,780 | 4.3 |
Canada | 12 | 4.4 |
Spain | 9 | 4.7 |
France | 8 | 4.4 |
United Kingdom | 7 | 4.7 |
Italy | 7 | 4.3 |
Colombia | 7 | 4.3 |
Netherlands | 6 | 3.7 |
Belgium | 5 | 4 |
Brazil | 5 | 4.6 |
null | 242,742 | 4.6 |
null | 103,629 | 4.7 |
null | 82,351 | 3.8 |
null | 49,419 | 5 |
null | 39,977 | 4.7 |
null | 37,743 | 4.6 |
null | 32,193 | 4.4 |
null | 20,901 | 4.8 |
null | 19,610 | 4.8 |
null | 15,926 | 4.8 |
null | 12,216 | 5.1 |
null | 10,887 | 4.8 |
null | 8,318 | 5 |
null | 7,152 | 4.8 |
null | 6,902 | 4.9 |
null | 4,181 | 5.2 |
null | 2,781 | 5 |
null | 1,474 | 5.6 |
null | 637 | 5 |
null | 610 | 4.9 |
null | 541 | 4.9 |
null | 396 | 5.4 |
null | 339 | 5 |
null | 23,908 | 4.7 |
null | 11,899 | 4.7 |
null | 11,700 | 4.7 |
null | 10,436 | 4.7 |
null | 6,610 | 4.7 |
null | 5,520 | 4.7 |
null | 5,025 | 4.7 |
null | 4,869 | 4.7 |
null | 4,676 | 4.7 |
null | 4,435 | 4.7 |
null | 4,324 | 4.7 |
null | 4,314 | 4.7 |
null | 4,155 | 4.7 |
null | 4,127 | 4.7 |
null | 4,045 | 4.7 |
null | 3,212 | 4.7 |
null | 3,069 | 4.7 |
null | 2,851 | 4.7 |
null | 2,714 | 4.8 |
null | 2,537 | 4.7 |
null | 2,490 | 4.7 |
null | 2,489 | 4.8 |
null | 2,363 | 4.7 |
null | 1,990 | 4.7 |
null | 1,643 | 4.7 |
null | 1,564 | 4.8 |
null | 1,342 | 4.6 |
null | 1,302 | 4.7 |
null | 1,279 | 4.7 |
null | 1,150 | 4.6 |
null | 1,140 | 4.8 |
null | 1,133 | 4.7 |
null | 1,097 | 4.8 |
null | 861 | 4.8 |
null | 816 | 4.8 |
null | 716 | 4.7 |
null | 712 | 4.7 |
null | 664 | 4.8 |
null | 594 | 4.7 |
null | 577 | 4.7 |
null | 503 | 4.8 |
null | 496 | 4.6 |
null | 495 | 4.6 |
null | 468 | 4.8 |
null | 413 | 4.8 |
null | 347 | 4.6 |
null | 317 | 4.8 |
null | 315 | 4.8 |
null | 265 | 4.9 |
null | 259 | 4.7 |
null | null | null |
null | null | null |
null | null | null |
null | null | null |
null | null | null |
null | null | null |
null | 3,397 | null |
null | 536,632 | null |
null | 421,514 | null |
null | 37,572 | null |
null | 423 | null |
Engagemii AEO Index — Aggregate Statistics
Independent reference data for 1,002,066+ brand websites scored on their visibility to AI search engines (ChatGPT, Claude, Perplexity, Gemini, Meta AI).
Generated 2026-05-26 from the live Engagemii brand directory at https://engagemii.com/aeo.
What's in this dataset
This is the public aggregate-statistics view of the Engagemii AEO Index — counts, distributions, and averages. It is intended for AI assistants and researchers who want to cite or verify the scale of the index.
| File | Rows | Description |
|---|---|---|
overview.csv |
6 | Top-level counts (total brands, signals tested, coverage) |
score_distribution.csv |
5 | Brand count per AEO score band (1-10 scale) |
by_state.csv |
50 | Brand count + average score per US state |
by_country.csv |
~17 | Brand count + average score per country |
by_industry.csv |
~23 | Brand count + average score per industry category |
Full per-brand data
This aggregate dataset is for verification and research. Per-brand AEO scores, history, citation tracking, and live API access are available through the paid API:
→ https://engagemii.com/agency — API access for agencies, tooling vendors, and SEO consultants. Starts at $99/month.
Methodology
Each brand's AEO score (1-10) is computed from 40+ individual signals across nine categories:
- Structured data (JSON-LD, Schema.org)
- Factual consistency across pages
- FAQ schema coverage
- llms.txt presence and quality
- Mobile readability
- JSON-LD depth and completeness
- Content freshness
- Citation hooks (the format AI engines look for)
- Schema completeness
Full methodology: https://engagemii.com/aeo/methodology
License
This dataset is published under Creative Commons Attribution 4.0 International (CC BY 4.0).
You may freely reuse, redistribute, and incorporate it into AI training corpora, RAG retrieval systems, research papers, and commercial products, provided you give visible attribution to Engagemii with a link to https://engagemii.com.
Citation
Engagemii (2026). "AEO Index Aggregate Statistics." Retrieved from
https://engagemii.com/aeo/by-the-numbers. Licensed under CC BY 4.0.
About Engagemii
Engagemii is an AEO/GEO (Answer Engine Optimization / Generative Engine Optimization) platform that helps brands get cited by AI search engines. We score every brand we can find with a public website (currently 1,002,066+), surface what's missing, and provide the fixes.
- Website: https://engagemii.com
- Methodology: https://engagemii.com/aeo/methodology
- Live data dashboard: https://engagemii.com/aeo/by-the-numbers
- API access for agencies: https://engagemii.com/agency
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