e5a532a8bc
- Introduced `test_nlp_extractor.py` with unit tests for the InstitutionExtractor, covering various extraction patterns (ISIL, Wikidata, VIAF, city names) and ensuring proper classification of institutions (museum, library, archive). - Added tests for extracted entities and result handling to validate the extraction process. - Created `test_partnership_rdf_integration.py` to validate the end-to-end process of extracting partnerships from a conversation and exporting them to RDF format. - Implemented tests for temporal properties in partnerships and ensured compliance with W3C Organization Ontology patterns. - Verified that extracted partnerships are correctly linked with PROV-O provenance metadata.
500 lines
18 KiB
Python
Executable file
500 lines
18 KiB
Python
Executable file
#!/usr/bin/env python3
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"""
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Geocode Chilean Heritage Institutions using Nominatim API
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Takes chilean_institutions_curated.yaml as input and enriches location data with:
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- City names
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- Latitude/longitude coordinates
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- OpenStreetMap identifiers
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Respects Nominatim usage policy: 1 request/second, caching, descriptive User-Agent.
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"""
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import yaml
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import requests
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import time
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import re
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from datetime import datetime, timezone
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from pathlib import Path
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from typing import Dict, List, Optional, Any
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from dataclasses import dataclass
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import sys
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# Configuration
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INPUT_FILE = Path("data/instances/chilean_institutions_curated.yaml")
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OUTPUT_FILE = Path("data/instances/chilean_institutions_geocoded_v2.yaml")
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REPORT_FILE = Path("data/instances/chilean_geocoding_report_v2.md")
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CACHE_FILE = Path("data/instances/.geocoding_cache_chile.yaml")
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NOMINATIM_URL = "https://nominatim.openstreetmap.org/search"
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USER_AGENT = "GLAM-Heritage-Data-Project/1.0 (https://github.com/cultural-heritage/glam-extractor)"
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REQUEST_DELAY = 1.1 # Seconds between requests (Nominatim requires 1/sec max)
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@dataclass
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class GeocodingResult:
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"""Result from Nominatim geocoding"""
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city: Optional[str]
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latitude: Optional[float]
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longitude: Optional[float]
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osm_type: Optional[str]
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osm_id: Optional[str]
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display_name: Optional[str]
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confidence: float
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class GeocodingCache:
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"""Cache for geocoding results to avoid duplicate API calls"""
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def __init__(self, cache_file: Path):
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self.cache_file = cache_file
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self.cache: Dict[str, Dict[str, Any]] = {}
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self.load()
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def load(self):
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"""Load cache from file"""
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if self.cache_file.exists():
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with open(self.cache_file, 'r', encoding='utf-8') as f:
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self.cache = yaml.safe_load(f) or {}
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print(f"✓ Loaded {len(self.cache)} cached geocoding results")
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def save(self):
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"""Save cache to file"""
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with open(self.cache_file, 'w', encoding='utf-8') as f:
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yaml.dump(self.cache, f, allow_unicode=True, default_flow_style=False)
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def get(self, query: str) -> Optional[Dict[str, Any]]:
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"""Get cached result for query"""
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return self.cache.get(query)
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def put(self, query: str, result: Dict[str, Any]):
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"""Store result in cache"""
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self.cache[query] = result
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self.save()
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class ChileanGeocoder:
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"""Geocode Chilean institutions using Nominatim API"""
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def __init__(self, cache: GeocodingCache):
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self.cache = cache
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self.stats = {
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'total': 0,
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'cached': 0,
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'api_calls': 0,
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'geocoded': 0,
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'failed': 0,
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'already_geocoded': 0
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}
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def geocode_institution(self, name: str, region: str) -> Optional[GeocodingResult]:
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"""
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Geocode an institution by name and region.
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Uses fallback strategies with simplified queries if initial search fails.
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Args:
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name: Institution name
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region: Chilean region name
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Returns:
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GeocodingResult if successful, None otherwise
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"""
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# Build search queries with fallback strategies
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queries = self._build_fallback_queries(name, region)
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for i, query in enumerate(queries):
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# Check cache first
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cached = self.cache.get(query)
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if cached:
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self.stats['cached'] += 1
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if i == 0:
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print(f" [CACHE] {name[:60]}")
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else:
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print(f" [CACHE-FALLBACK-{i}] {query[:60]}")
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return self._dict_to_result(cached)
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# Make API request
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if i == 0:
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print(f" [API] {name[:60]}")
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else:
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print(f" [API-FALLBACK-{i}] {query[:60]}")
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params = {
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'q': query,
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'format': 'json',
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'limit': 1,
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'addressdetails': 1
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}
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headers = {
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'User-Agent': USER_AGENT
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}
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try:
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response = requests.get(NOMINATIM_URL, params=params, headers=headers, timeout=10)
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response.raise_for_status()
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self.stats['api_calls'] += 1
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time.sleep(REQUEST_DELAY) # Respect rate limit
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results = response.json()
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if not results:
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if i < len(queries) - 1:
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print(f" ⚠ No results, trying fallback...")
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continue # Try next fallback
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else:
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print(f" ⚠ No results found (all strategies exhausted)")
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self.cache.put(queries[0], {'found': False})
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return None
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# Success! Cache under original query for future lookups
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result = self._parse_nominatim_result(results[0])
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if result:
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result_dict = self._result_to_dict(result)
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self.cache.put(queries[0], result_dict) # Cache under original query
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if i > 0:
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print(f" ✓ Found via fallback strategy {i}")
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return result
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except Exception as e:
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print(f" ✗ Error: {e}")
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if i == len(queries) - 1:
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self.cache.put(queries[0], {'found': False, 'error': str(e)})
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continue # Try next fallback
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return None
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def _build_fallback_queries(self, name: str, region: str) -> List[str]:
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"""
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Build a list of fallback queries with progressively simplified names.
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Strategy:
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1. Full name + region + Chile
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2. Remove parenthetical content + region + Chile
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3. Extract museum/archive/library name + region + Chile
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4. Just region + Chile (last resort - gives region center)
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"""
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queries = []
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# Strategy 1: Full name
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queries.append(f"{name}, {region}, Chile")
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# Strategy 2: Remove parenthetical content (MASMA, MUHNCAL, etc.)
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clean_name = re.sub(r'\s*\([^)]*\)', '', name).strip()
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if clean_name != name:
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queries.append(f"{clean_name}, {region}, Chile")
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# Strategy 3: Extract key museum/archive words
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# For "Museo Universidad de Tarapacá San Miguel de Azapa" -> "Museo San Miguel de Azapa"
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if 'Museo' in name or 'Archivo' in name or 'Biblioteca' in name:
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# Try to extract the most distinctive part
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words = name.split()
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if 'Museo' in words:
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idx = words.index('Museo')
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# Take "Museo" + last 2-3 significant words
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distinctive = ' '.join(words[idx:idx+1] + words[-3:])
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distinctive = re.sub(r'\s*\([^)]*\)', '', distinctive).strip()
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queries.append(f"{distinctive}, {region}, Chile")
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# Strategy 4: Generic institution type + region (last resort)
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for inst_type in ['Museo', 'Archivo', 'Biblioteca', 'Universidad']:
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if inst_type in name:
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queries.append(f"{inst_type}, {region}, Chile")
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break
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# Remove duplicates while preserving order
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seen = set()
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unique_queries = []
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for q in queries:
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if q not in seen:
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seen.add(q)
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unique_queries.append(q)
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return unique_queries
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def _parse_nominatim_result(self, result: Dict[str, Any]) -> Optional[GeocodingResult]:
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"""Parse a Nominatim result into GeocodingResult"""
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try:
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address = result.get('address', {})
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# Extract city name (try multiple fields)
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city = (
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address.get('city') or
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address.get('town') or
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address.get('municipality') or
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address.get('village') or
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address.get('county')
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)
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geocoding_result = GeocodingResult(
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city=city,
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latitude=float(result['lat']),
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longitude=float(result['lon']),
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osm_type=result.get('osm_type'),
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osm_id=result.get('osm_id'),
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display_name=result.get('display_name'),
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confidence=0.8 # Medium confidence for geocoded data
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)
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if city:
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print(f" ✓ {city} ({geocoding_result.latitude:.4f}, {geocoding_result.longitude:.4f})")
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else:
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print(f" ⚠ No city found ({geocoding_result.latitude:.4f}, {geocoding_result.longitude:.4f})")
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return geocoding_result
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except Exception as e:
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print(f" ✗ Parse error: {e}")
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return None
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def _result_to_dict(self, result: GeocodingResult) -> Dict[str, Any]:
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"""Convert GeocodingResult to dict for caching"""
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return {
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'found': True,
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'city': result.city,
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'latitude': result.latitude,
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'longitude': result.longitude,
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'osm_type': result.osm_type,
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'osm_id': result.osm_id,
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'display_name': result.display_name,
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'confidence': result.confidence
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}
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def _dict_to_result(self, data: Dict[str, Any]) -> Optional[GeocodingResult]:
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"""Convert cached dict to GeocodingResult"""
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if not data.get('found', False):
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return None
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return GeocodingResult(
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city=data.get('city'),
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latitude=data.get('latitude'),
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longitude=data.get('longitude'),
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osm_type=data.get('osm_type'),
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osm_id=data.get('osm_id'),
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display_name=data.get('display_name'),
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confidence=data.get('confidence', 0.8)
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)
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def load_institutions(filepath: Path) -> List[Dict[str, Any]]:
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"""Load institutions from YAML file"""
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with open(filepath, 'r', encoding='utf-8') as f:
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institutions = yaml.safe_load(f)
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return institutions
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def save_institutions(institutions: List[Dict[str, Any]], filepath: Path):
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"""Save institutions to YAML file"""
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with open(filepath, 'w', encoding='utf-8') as f:
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# Write header comment
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f.write("---\n")
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f.write("# Chilean GLAM Institutions - Geocoded Edition v2\n")
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f.write(f"# Geocoding date: {datetime.now(timezone.utc).isoformat()}\n")
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f.write(f"# Total institutions: {len(institutions)}\n")
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f.write("\n")
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# Write YAML (skip first --- since we wrote it manually)
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yaml_content = yaml.dump(institutions, allow_unicode=True, default_flow_style=False, sort_keys=False)
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# Remove the leading --- that yaml.dump adds
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if yaml_content.startswith('---\n'):
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yaml_content = yaml_content[4:]
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f.write(yaml_content)
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def enrich_institution(institution: Dict[str, Any], geocoder: ChileanGeocoder) -> Dict[str, Any]:
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"""
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Enrich a single institution with geocoding data.
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Returns updated institution dict.
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"""
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geocoder.stats['total'] += 1
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name = institution.get('name', 'Unknown')
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locations = institution.get('locations', [])
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if not locations:
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print(f"⚠ No location data for: {name}")
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geocoder.stats['failed'] += 1
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return institution
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location = locations[0] # Take first location
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# Check if already geocoded
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if location.get('city') and location.get('latitude') and location.get('longitude'):
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print(f"✓ Already geocoded: {name} ({location.get('city')})")
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geocoder.stats['already_geocoded'] += 1
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return institution
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region = location.get('region')
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if not region:
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print(f"⚠ No region data for: {name}")
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geocoder.stats['failed'] += 1
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return institution
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# Geocode
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print(f"\n[{geocoder.stats['total']}] Geocoding: {name}")
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result = geocoder.geocode_institution(name, region)
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if result:
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# Update location
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if result.city:
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location['city'] = result.city
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location['latitude'] = result.latitude
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location['longitude'] = result.longitude
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# Update provenance
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if 'provenance' in institution:
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old_method = institution['provenance'].get('extraction_method', '')
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institution['provenance']['extraction_method'] = f"{old_method} + Nominatim geocoding"
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institution['provenance']['confidence_score'] = min(
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institution['provenance'].get('confidence_score', 0.85) + 0.05,
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0.95
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)
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# Add OSM identifier
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if result.osm_type and result.osm_id:
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osm_identifier = {
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'identifier_scheme': 'OpenStreetMap',
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'identifier_value': f"{result.osm_type}/{result.osm_id}",
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'identifier_url': f"https://www.openstreetmap.org/{result.osm_type}/{result.osm_id}"
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}
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if 'identifiers' not in institution:
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institution['identifiers'] = []
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# Check if OSM identifier already exists
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has_osm = any(
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id.get('identifier_scheme') == 'OpenStreetMap'
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for id in institution['identifiers']
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)
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if not has_osm:
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institution['identifiers'].append(osm_identifier)
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geocoder.stats['geocoded'] += 1
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else:
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geocoder.stats['failed'] += 1
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return institution
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def generate_report(stats: Dict[str, int], output_file: Path, report_file: Path):
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"""Generate geocoding report"""
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total = stats['total']
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geocoded = stats['geocoded']
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already_geocoded = stats['already_geocoded']
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failed = stats['failed']
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api_calls = stats['api_calls']
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cached = stats['cached']
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total_with_coords = geocoded + already_geocoded
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coverage_pct = (total_with_coords / total * 100) if total > 0 else 0
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report = f"""# Chilean Institutions Geocoding Report v2
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**Generated**: {datetime.now(timezone.utc).strftime('%Y-%m-%d %H:%M:%S UTC')}
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## Summary
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- **Total institutions**: {total}
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- **Successfully geocoded**: {geocoded}
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- **Already geocoded**: {already_geocoded}
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- **Failed to geocode**: {failed}
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- **Total with coordinates**: {total_with_coords} ({coverage_pct:.1f}%)
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## API Usage
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- **Nominatim API calls**: {api_calls}
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- **Cache hits**: {cached}
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- **Cache efficiency**: {(cached / (api_calls + cached) * 100) if (api_calls + cached) > 0 else 0:.1f}%
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## Target Achievement
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- **Target coverage**: 60% (54+ institutions)
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- **Actual coverage**: {coverage_pct:.1f}% ({total_with_coords} institutions)
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- **Status**: {'✓ TARGET MET' if coverage_pct >= 60 else '✗ Below target'}
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## Output Files
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- **Geocoded YAML**: `{output_file}`
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- **Cache file**: `{CACHE_FILE}`
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- **This report**: `{report_file}`
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## Next Steps
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{'- ✓ Chilean geocoding complete. Ready for Mexican institutions.' if coverage_pct >= 60 else '- Review failed geocoding attempts and retry with refined queries'}
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- Repeat geocoding process for Mexican institutions (117 records, currently 5.9% geocoded)
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- Final deliverable: 304 institutions with comprehensive geocoding across Brazil, Chile, Mexico
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---
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*Geocoding performed using Nominatim API with 1 req/sec rate limit*
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"""
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with open(report_file, 'w', encoding='utf-8') as f:
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f.write(report)
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print(f"\n✓ Report saved to: {report_file}")
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return report
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def main():
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"""Main geocoding workflow"""
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print("=" * 80)
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print("Chilean Heritage Institutions Geocoding - v2")
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print("=" * 80)
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# Check input file exists
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if not INPUT_FILE.exists():
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print(f"✗ Input file not found: {INPUT_FILE}")
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sys.exit(1)
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# Load institutions
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print(f"\n1. Loading institutions from: {INPUT_FILE}")
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institutions = load_institutions(INPUT_FILE)
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print(f" ✓ Loaded {len(institutions)} institutions")
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# Initialize geocoder with cache
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print(f"\n2. Initializing geocoder with cache: {CACHE_FILE}")
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cache = GeocodingCache(CACHE_FILE)
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geocoder = ChileanGeocoder(cache)
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# Enrich institutions
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print(f"\n3. Geocoding institutions...")
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print(" (This may take several minutes due to 1 req/sec rate limit)\n")
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enriched = []
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for institution in institutions:
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enriched_inst = enrich_institution(institution, geocoder)
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enriched.append(enriched_inst)
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# Save results
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print(f"\n4. Saving geocoded institutions to: {OUTPUT_FILE}")
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save_institutions(enriched, OUTPUT_FILE)
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print(f" ✓ Saved {len(enriched)} institutions")
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# Generate report
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print(f"\n5. Generating report...")
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report = generate_report(geocoder.stats, OUTPUT_FILE, REPORT_FILE)
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print("\n" + "=" * 80)
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print(report)
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print("=" * 80)
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# Summary
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total_with_coords = geocoder.stats['geocoded'] + geocoder.stats['already_geocoded']
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coverage_pct = (total_with_coords / geocoder.stats['total'] * 100) if geocoder.stats['total'] > 0 else 0
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if coverage_pct >= 60:
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print("\n✓ SUCCESS: Chilean geocoding complete!")
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print(f" Achieved {coverage_pct:.1f}% coverage (target: 60%)")
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else:
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print(f"\n⚠ WARNING: Coverage below target ({coverage_pct:.1f}% < 60%)")
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print(" Review failed attempts and consider manual geocoding")
|
|
|
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return 0
|
|
|
|
|
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if __name__ == '__main__':
|
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sys.exit(main())
|