1. One or more non-transitory computer-readable storage media collectively storing computer-executable instructions that, when executed by one or more computer systems, configure the one or more computer systems to collectively perform operations comprising: receiving unstructured item information associated with a plurality of items, the unstructured item information including one or more textual descriptions of the plurality of items; providing a network page for displaying at least some of the unstructured item information associated with the plurality of items, the network page configured to be displayed by a computing device operated by a user; converting the unstructured item information to a measurement value and a unit of measurement, comprising: parsing the unstructured item information to determine a textual description, comparing the textual description with a dictionary of values and units of measurements, and determining the measurement value and the unit of measurement based at least in part on matching the textual description with at least one entry of the dictionary, the measurement value and the unit of measurement associated with an attribute in the plurality of items; determining a first cluster of the plurality of items and a second cluster of the plurality of items based at least in part on the measurement value and the unit of measurement associated with the attribute in the plurality of items; storing the measurement value and the unit of measurement as structured data in a data store; determining a number of clusters that correspond with different measurement values of the unit of measurement, the clusters for an item including at least the first cluster and the second cluster; comparing the number of clusters for the item with an exclusion rate, the exclusion rate enabling confirmation of a limited number of common units of measurement in the plurality of items; merging the first cluster and the second cluster that correspond with the unit of measurement into a merged cluster; and providing, on the network page enabled to be displayed by the computing device, an identifying user interface element of the merged cluster that includes at least the unit of measurement of the merged cluster, wherein the merged cluster includes at least one item associated with the first cluster and the second cluster.