Abstract: Identifying relationships among records includes accessing a search record and corpus records. The search record comprises search tokens, where a search token is associated with a search token count. A corpus record comprises corpus tokens, where a corpus token is associated with a corpus token count. The following are repeated for each of at least a subset of the search tokens: identifying corpus tokens corresponding to the search token, and comparing the search token with the identified corpus tokens to yield comparisons. A relationship between the search record and at least one corpus record is determined in accordance with the comparisons.