Mechanism for managing facts in a fact repository

摘要

Methods and systems for processing facts with one or more janitors. Facts are extracted from documents on the Internet or other sources. Facts can be any data or series of data in the documents including an attribute and a file. The data can be in the form of text, graphics, or multimedia content. Janitors transform facts responsive to inferring a certain condition associated with facts. The condition can be related to one or more of an attribute, a value, or an object of a fact being analyzed. For example, janitors can perform normalization, remove or merge similar or duplicate facts, segregate multiple values of a fact, and the like. An administrator can select which janitors are applied to facts and in which order.