Presenting search results based upon subject-versions

A method performed by a computing device having a processor and a memory for classifying documents for presentation in response to search queries having associated version-intents, the method comprising:

• classifying each document of a plurality of documents for keyword-based retrieval in response to a received search query;
• determining, for each classified document, whether any subject-versions are indicated;
• for each document having at least one indicated subject-version, creating a tag indicative of the at least one indicated subject-version;
• and
• for each classified document, storing a document identifier, the document classification information and any associated subject-version tags in a document index.

One or more computer-readable storage media storing computer-useable instructions that, when used by one or more computing devices, cause the one or more computing devices to perform a method for identifying queries having a version-intent and presenting relevant search results in accordance with the version-intent, the method comprising:

• receiving a search query;
• determining that at least a portion of the search query has a version-intent indicative of a particular version associated with a subject of the search query;
• extracting, from the search query, the particular subject-version associated with the subject thereof;
• identifying a plurality of subject-versions associated with the subject of the search query, wherein the plurality includes the particular subject-version extracted from the search query;
• determining one or more documents that satisfies the received search query, wherein at least a portion of the one or more documents has one or more subject-version tags associated therewith;
• and
• presenting a plurality of search results that are ranked for presentation, at least in part, based on the particular subject-version indicated by the version-intent.