Patent ID: 8515935

Claim:
A system comprising: one or more data processing devices programmed to perform operations comprising: receiving a first search query from a source device; identifying a second search query as having a relationship with the first search query, comprising comparing: properties of a first set of wavelets whose magnitude exceeds a first threshold value, the first set of wavelets being generated by processing a first multi-dimensional representation of a volume at which the first search query has been submitted to a search engine system with properties of a second set of wavelets whose magnitude exceeds a second threshold value, the second set of wavelets being generated by processing a second multi-dimensional representation of a volume at which the second search query has been submitted to the search engine system; and transmitting, to the source device, data identifying the second search query in response to the receipt of the first search query and the identification of the second search query as having the relationship with the first search query, wherein the first threshold value is based on a size of the first multi-dimensional representation and the second threshold value is based on a size of the second multi-dimensional representation.