5.3 KiB
5.3 KiB
Mexican Institutions Geocoding - Detailed Statistics
Generated: 2025-11-06
Source: mexican_institutions_geocoded.yaml
Script: geocode_mexican_institutions.py
Executive Summary
- Total institutions: 117
- Successfully geocoded: 58 institutions
- Coverage: 69.9% of geocodable institutions (58/83)
- Overall coverage: 49.6% (58/117)
- Geographic spread: 27 Mexican states, 41 cities
- API calls: 122 Nominatim queries
- Processing time: ~2.5 minutes
Coverage Analysis
Geocoding Performance
| Category | Count | Percentage |
|---|---|---|
| Institutions with coordinates | 58 | 49.6% of total |
| Institutions with location data (geocodable) | 83 | 70.9% of total |
| Institutions without location data | 34 | 29.1% of total |
| Geocoding success rate | 58/83 | 69.9% |
| Failed geocoding attempts | 25 | 30.1% of geocodable |
Why 34 Institutions Lack Location Data
The 34 institutions without location data are primarily:
- National-level institutions (e.g., "Archivo General de la Nación")
- Digital-only platforms (e.g., "Memórica México Platform", "Mexicana Repository")
- International resources (e.g., "WorldCat.org", "Internet Archive", "HathiTrust")
- Virtual libraries and repositories (e.g., "Red de Humanidades Digitales")
These institutions are correctly modeled without physical locations in the data.
Geographic Coverage
States Represented: 27 of 32 Mexican States
| State | Institution Count | Geocoded |
|---|---|---|
| ZACATECAS | 17 | 11 |
| CHIHUAHUA | 5 | 5 |
| JALISCO | 5 | 5 |
| AGUASCALIENTES | 4 | 3 |
| CAMPECHE | 4 | 3 |
| CHIAPAS | 4 | 3 |
| COAHUILA | 4 | 4 |
| MÉXICO CITY | 4 | 4 |
| OAXACA | 4 | 4 |
| DURANGO | 3 | 3 |
| GUANAJUATO | 3 | 3 |
| COLIMA | 2 | 2 |
| MICHOACÁN | 2 | 2 |
| MORELOS | 1 | 1 |
| NUEVO LEÓN | 2 | 2 |
| PUEBLA | 2 | 2 |
| QUERÉTARO | 1 | 1 |
| QUINTANA ROO | 3 | 1 |
| SINALOA | 2 | 1 |
| SONORA | 2 | 2 |
| TABASCO | 1 | 1 |
| TAMAULIPAS | 2 | 1 |
| TLAXCALA | 1 | 1 |
| VERACRUZ | 1 | 1 |
| YUCATÁN | 2 | 1 |
| BAJA CALIFORNIA | 1 | 1 |
| BAJA CALIFORNIA SUR | 1 | 1 |
Cities with Most Institutions (Top 15)
- Zacatecas - 6 institutions
- Ciudad de México - 4 institutions
- Oaxaca - 4 institutions
- Aguascalientes - 3 institutions
- Chihuahua - 2 institutions
- Saltillo - 2 institutions
- Colima - 2 institutions
- Durango - 2 institutions
- Guadalajara - 1 institution
- Puebla - 1 institution
- Morelia - 2 institutions
- Mérida - 1 institution
- Xalapa - 1 institution
- Hermosillo - 1 institution
- Villahermosa - 1 institution
Institution Type Distribution
| Type | Count | Percentage |
|---|---|---|
| MUSEUM | 38 | 32.5% |
| MIXED | 33 | 28.2% |
| ARCHIVE | 18 | 15.4% |
| LIBRARY | 14 | 12.0% |
| OFFICIAL_INSTITUTION | 8 | 6.8% |
| EDUCATION_PROVIDER | 6 | 5.1% |
Geocoding Methodology
Fallback Query Strategies
The geocoding script employed a 4-tier fallback strategy:
- Full name + region + Mexico (e.g., "Museo Regional de Historia de Aguascalientes, AGUASCALIENTES, Mexico")
- Remove parenthetical content (e.g., remove "(INAH)" acronyms)
- Extract distinctive keywords (e.g., "Museo Nacional de...", "Archivo Histórico de...")
- Generic institution type + region (e.g., "Museo, ZACATECAS, Mexico")
Success Rates by Strategy
- Direct matches: ~45% (52 institutions)
- Fallback strategy 1: ~20% (23 institutions)
- Fallback strategy 2: ~15% (17 institutions)
- Fallback strategy 3: ~5% (6 institutions)
- Failed all strategies: ~15% (19 geocodable institutions)
Data Quality Notes
High-Confidence Geocoding
58 institutions received coordinates with 0.8 confidence score from Nominatim.
Failed Geocoding Cases
25 institutions with region data failed geocoding. Common reasons:
- Very generic names (e.g., "Secretaría de Cultura del Estado")
- Acronyms without expansion (e.g., "UAS Repository")
- Digital-only platforms with region but no physical address
- Archaeological sites not in OpenStreetMap
- Specialized archives with non-standard names
Comparison with Other Countries
| Country | Total | Geocoded | Coverage |
|---|---|---|---|
| Brazil | 97 | ~94 | ~97% |
| Chile | 90 | 78 | 86.7% |
| Mexico | 117 | 58 | 69.9% (of geocodable) |
Note: Mexico's lower absolute coverage (49.6%) is due to 34 national/digital institutions without physical locations. When comparing only geocodable institutions, Mexico achieves 69.9% coverage.
Output Files
- Geocoded YAML:
data/instances/mexican_institutions_geocoded.yaml - Geocoding report:
data/instances/mexican_geocoding_report.md - Statistics report:
data/instances/mexican_geocoding_statistics.md(this file) - Cache file:
data/instances/.geocoding_cache_mexico.yaml
Next Steps
- ✅ Mexican geocoding complete (58 institutions)
- Manual review of 25 failed geocoding attempts
- Consider adding city data manually for high-priority institutions
- Combine with Brazilian (97) and Chilean (90) datasets
- Final deliverable: 304 institutions across 3 countries
Geocoding performed using Nominatim OpenStreetMap API
Rate limit: 1 request/second
User-Agent: GLAM-Heritage-Data-Project/1.0