Dynamic presentation of data items based on prioritized associations

An example method involves: (i) maintaining an attribute-association database comprising data for a set of data items, wherein the data for a given one of the data items specifies for each of one or more attributes from a set of attributes, (a) an associative value, and (b) a temporal-decay value; (ii) detecting an event, wherein the event is associated with one or more event attributes; (iii) determining a relevance of a given one of the data items to the detected event based on a selected one or more of (a) the associative values and (b) the temporal-decay values; (iv) selecting at least one data item, wherein the at least one data item is selected from a set of the data items based on the respective relevancies of the data items in the set; and (v) providing an indication of the at least one selected data item.