1. A computer-implemented method, comprising: generating a plurality of intent maps representing event structures based on sentences included in a plurality of documents, including a first intent map corresponding to a first document and a second intent map corresponding to a second document, wherein generating an intent map for a selected document includes: parsing the selected document to identify one or more sentences included in the selected document; and extracting an event structure from at least one sentence of the one or more sentences, wherein the event structure includes data descriptive of an actor and an action described in the at least one sentence; performing a comparison of at least one event structure of the first intent map and at least one event structure of the second intent map; and determining, based on the comparison, whether at least a portion of the first document is duplicative of at least a portion of the second document.