| CPC G06Q 30/0629 (2013.01) [G06F 16/954 (2019.01); G06Q 30/0643 (2013.01); H04L 67/02 (2013.01)] | 20 Claims | 

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               1. A computer-implemented method comprising: 
            detecting, using a browser extension on a user device associated with a user, that the user navigates to a first website displayed in a first open browser tab and a second website displayed in a second open browser tab; 
                receiving, from the browser extension, live browser information associated with the first open browser tab and the second open browser tab that remain open for a predetermined period of time; 
                providing, as input to a first machine learning model, the live browser information; 
                determining, based on feedback from the first machine learning model, one or more similar products displayed in the first website and the second website; 
                detecting an update on the determined one or more similar products associated with the first website in the first open browser tab, wherein the update comprises a posting of a new listing associated with the determined one or more similar products in the first open browser tab; and 
                causing the user device to display an alert indicating the update on the determined one or more similar products. 
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