openvenues/libpostal

Features

• Address Parsing - Decomposes unstructured global address strings into structured components like house numbers, street names, and cities.
• Address Language Classifiers - Detects the language of an address string to trigger appropriate region-specific parsing and normalization logic.
• Probabilistic Sequence Taggers - Uses probabilistic NLP models to predict address component boundaries and labels based on open geo data.
• Language Detection - Detects the language of address strings to ensure the correct normalization and parsing rules are applied.
• Address Normalizations - Standardizes unstructured address inputs into a consistent, canonical format for improved search and matching.
• Abbreviation Expansions - Provides multi-language expansion of shorthand address terms into their full-form equivalents.
• Language Classifiers - Provides a statistical language classifier to detect address languages and apply region-specific parsing rules.
• Data Cleaning Procedures - Prepares raw location text for databases by removing noise and standardizing regional naming conventions.
• Physical Address Deduplication - Compares address records using exact or fuzzy matching to determine if they refer to the same physical location.
• Fuzzy Matching - Employs distance metrics to identify duplicate addresses despite spelling or formatting variations.
• Script Transliterations - Converts non-Latin scripts into standardized ASCII representations using predefined transformation maps.
• Geographic Parsing Rules - Applies distinct normalization and parsing logic based on the detected language and geographic region of the address.
• Unicode Normalizers - Standardizes text by decomposing characters to NFD form and stripping accent marks.
• Fuzzy Entity Deduplicators - Identifies and merges address records that refer to the same real-world physical location using fuzzy matching.
• C Geospatial Libraries - Statistical NLP library for parsing and normalizing international addresses.
• Low Level Geospatial Libraries - Parses and normalizes international street addresses.
• Windows Environments - Listed in the “Windows Environments” section of the Awesome C awesome list.

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