Abstract: Systems and techniques are utilized to cluster data entries. The data entries may be part of a hierarchical organization or may be categorized based on a set of attributes (e.g., directory of contacts, catalog of multimedia files, digital books). A disclosed method comprises accessing one or more data entries and determining a number of groupings to identify. Individual ones of the data entries are assigned weights. Ranges for individual groupings are determined and the one or more data entries are placed in a grouping based on the assigned weights. The individual groups are presented to a user for selection, where the individual groups are represented by indicia. The groupings may change dynamically based on a change in the one or more of data entries, the display space, a user defined parameter, and/or other factors. A table corresponding to the data entries may be used to determine ranges for the groupings.

Abstract: A user locked out of an account can gain access by allowing the user to reset the current password. An account access service can determine questions to ask the user. The account access service can maintain a trust level score, which is increased or decreased with each response to a question. Once this trust level reaches a certain predetermined amount, the user can regain access to the service, the account is unlocked, and the user can enter a new password to use.