19. A system for propagating classification decisions, comprising: text marked within one or more unclassified documents that is responsive to a predetermined issue, wherein the one or more unclassified documents are selected from a corpus of unclassified documents; a query generator to generate a search query from the responsive text and to identify result documents, comprising: a same search module to identify same result documents by applying inclusive search parameters to the query, by applying the search query to the corpus, and by identifying the documents that satisfy the query as the same result documents; and a similar search module to identify similar result documents from the corpus by adjusting a breath of the query by applying less inclusive search parameters and by identifying documents from the corpus that satisfy the query as the similar result documents; a propagator to automatically assign a responsive classification code to the same result documents for classification as responsive documents; a document feeder to provide the similar documents to the user and to receive a responsive classification decision from the user for at least one of the similar documents for classification as the responsive documents; a validation module to provide a number of the unclassified documents remaining in the corpus for further review, wherein the number of remaining unclassified documents is determined in accordance with the equation: M = x b where b is an upper bound value representing a percentage of the unclassified documents remaining in the corpus that are responsive and x is an integer that is determined based on a desired confidence level that all the responsive documents are identified; and a processor to execute the modules, the query generator, the propagator, and the document feeder.
19. A system for propagating classification decisions, comprising: text marked within one or more unclassified documents that is responsive to a predetermined issue, wherein the one or more unclassified documents are selected from a corpus of unclassified documents; a query generator to generate a search query from the responsive text and to identify result documents, comprising: a same search module to identify same result documents by applying inclusive search parameters to the query, by applying the search query to the corpus, and by identifying the documents that satisfy the query as the same result documents; and a similar search module to identify similar result documents from the corpus by adjusting a breath of the query by applying less inclusive search parameters and by identifying documents from the corpus that satisfy the query as the similar result documents; a propagator to automatically assign a responsive classification code to the same result documents for classification as responsive documents; a document feeder to provide the similar documents to the user and to receive a responsive classification decision from the user for at least one of the similar documents for classification as the responsive documents; a validation module to provide a number of the unclassified documents remaining in the corpus for further review, wherein the number of remaining unclassified documents is determined in accordance with the equation: M = x b where b is an upper bound value representing a percentage of the unclassified documents remaining in the corpus that are responsive and x is an integer that is determined based on a desired confidence level that all the responsive documents are identified; and a processor to execute the modules, the query generator, the propagator, and the document feeder. 21. A system according to claim 19 , further comprising: a responsive document determination module to perform one of determining that all the responsive documents in the corpus have been identified when none of the M remaining unclassified documents include responsive material and selecting further remaining unclassified documents for review when at least one of the remaining unclassified documents includes responsive material.