access a view history of a user account, the view history stored in and accessed from a storage device accessible by the at least one processor, the view history collected from a media device associated with the user account, the view history comprising at least a first item and a second item viewed by the user account in sequence within a predetermined time interval, the first item and the second item viewed on a display device associated with the media device, the storage device storing a plurality of view histories associated with a plurality of user accounts and collected from a plurality of media devices, the plurality of user accounts including the user account and a plurality of additional user accounts;

generate a co-watch graph based on the view history of the user account, wherein the co-watch graph comprises a plurality of nodes including a first node corresponding to the first item viewed by the user account, a second node corresponding to the second item viewed by the user account, and an edge between the first node and the second node;

assign an initial node weight of the first node to the first node representing a first number of times the first item has been viewed by the user account;

assign an initial node weight of the second node to the second node representing a second number of times the second item has been viewed by the user account;

assign an initial weight of the edge to the edge between the first node and the second node representing a number of co-occurrence times that the first item and the second item have been viewed in sequence within the predetermined time interval;

adjust the initial weight of the edge to remove bias to derive a normalized weight of the edge based on the initial weight of the edge, the initial node weight of the first node, and the initial node weight of the second node;

for a current item being viewed by the user account represented by a current node of the co-watch graph, select, based on the co-watch graph with the edge having the normalized weight, a recommended item represented by an associated node in the co-watch graph;

determine a probability that the recommended item will be viewed by the user account as a maximal probability of being viewed by the user account; and

command the media device to display the recommended item on the display device based on the selection of the recommended item.