Managing user accesses is disclosed, including: 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 based at least in part on the generated journal files; aggregating information associated with the attribute from journal files associated with the merchandise category, wherein the aggregated information is to be included in a model information group associated with the merchandise category; and returning, in a subsequent search of merchandise information corresponding to the merchandise category, search results that are based at least in part on information associated with the model information group. Conducting searches of merchandise information is disclosed, including: determining a merchandise category associated with a query based at least in part on received keywords associated with the query; retrieving a model information group corresponding to the determined merchandise category; extracting attribute information from the retrieved model information group based at least in part on a quantity associated with an attribute; and presenting the extracted attribute information.