1. A method for managing user accesses of merchandise information, comprising: generating journal files over a predetermined period of time, wherein a journal file includes merchandise information associated with an accessed webpage; determining, for a merchandise category, information related to an attribute associated with the merchandise category based at least in part on the generated journal files, wherein the information related to an attribute includes at least a first type associated with the attribute; aggregating information associated with the attribute from journal files associated with the merchandise category, wherein aggregating information includes generating a quantity associated with the first type associated with the attribute based at least in part on a number of times the first type associated with the attribute appears in the journal files, wherein the aggregated information is to be included in a model information group associated with the merchandise category; and performing a subsequent search of merchandise information using information associated with the model information group, wherein performing the subsequent search includes determining whether a matching merchandise category can be found in response to a query keyword associated with the subsequent search; in the event that the matching merchandise category can be found, extracting attribute information from the model information group associated with the merchandise category; in the event that the matching merchandise category cannot be found, searching a merchandise category tree using the query keyword and returning information from one or more matching nodes of the merchandise category tree.