Patent ID: 11972424
Assignee: AMAZON TECHNOLOGIES, INC.
Field: IT methods for management (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. A method of detecting evasive listings, comprising:
receiving a list of keywords associated with a first category of specified items;
receiving text data associated with a first item, wherein the first item is associated with the first category;
generating a plurality of tokens representing a corrected version of the text data using spell correction techniques and based at least in part on the list of keywords;
generating first indicator data indicating that the text data constitutes evasive text based at least in part on the generation of the plurality of tokens;
determining a first set of parameters for a binary classifier using training data comprising a first training sample comprising a first vector representing evasive item text data labeled with a first ground truth label and a second training sample comprising a second vector representing non-evasive item text data labeled with a second ground truth label;
inputting the first indicator data and a numerical representation of the plurality of tokens into the binary classifier trained to generate label data indicating whether text data associated with a given item is evasive or non-evasive;
generating, using the binary classifier and the first set of parameters, label data indicating that the text data associated with the first item is evasive; and
performing an action based at least in part on the label data, wherein the action affects an accessibility of the first item in response to a search query.