Patent Document ID: 9703875
Application ID: 14460690

Base Claim:
1. A system comprising: a communication module, implemented using one or more processors, that is configured to receive a query, over a network, from a client machine, the query including at least one keyword; and a search engine, implemented using one or more processors, that is configured to identify a filter context based on the query, the filter context including a first plurality of filters, the first plurality of filters including a plurality of attribute-value pairs, the plurality of attribute-value pairs including a first attribute-value pair including a first filter and a second attribute-value pair including a second filter, identify a second plurality of filters responsive to receipt of the query, the second plurality of filters identified based on the filter context and probabilities that describe occurrences of attribute-value pairs in a first plurality of listings that respectively describe items that were previously transacted on a network-based marketplace, and generate a user interface including search results that are identified based on the filter context, the communication module to communicate the user interface, over the network, to the client machine.

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Claim 3:
3. The system of claim 1 , wherein the first plurality of listings includes a listing that includes a title, wherein the search engine is further configured to sort the second plurality of filters based on a probability of the first attribute-value pair randomly occurring in the title.