Entity Resolution

Entity resolution pipeline that matches, merges, and enriches entity records from multiple data sources. Implements survivorship rules to determine which source wins for each field, builds unified company profiles, and resolves Legal Entity Identifiers (LEI) via GLEIF.

Components

Module	Purpose
entity_matcher.py	Multi-source entity matching with configurable similarity thresholds
survivorship.py	Survivorship rules determining field-level source priority in merged records
company_profile_service.py	Unified company profile construction from merged entity data
gleif_service.py	GLEIF API integration for LEI lookup and validation