1. A computer-implemented method, comprising: acquiring contexts about each of a plurality of documents from each of the documents using a context extraction module of a document management apparatus; calculating a priority for each of the documents according to a combination of the acquired contexts from each document using a priority calculation module of the document management apparatus; storing one or more first documents in a first queue according to the priority of the one or more first documents; and storing one or more second documents in a second queue according to the priority of the one or more second documents, wherein each of the queues is characterized as having a unique classification timing.