Patent ID: 7287024

Claim:
A method for selecting items to display on an electronic board system based on relevance of the items, wherein the electronic board system includes a screen for displaying items, comprising: for each user in a community of users having a set of contexts to which the users subscribe, determining the number of interactions with items in contexts the user is a member and the number of interactions with items in contexts the user is not a member; for each context, evaluating the number and type of user interactions according to a first predetermined relationship; determining the most popular contexts; for each of the most popular contexts, selecting the most popular items according to a second predetermined relationship for evaluating user interactions with items; and displaying the most popular items in each context on the screen; wherein the user interactions with items comprise input interactions and output interactions; and constructing a vector A j i representing a user's overall activity,  A t j  j = 0 n - 1 =  OF i ⁢ ⁢ j = 0 j ⁢ ⁢ n = 1  +  IF t j  j = 0 n - 1 where  IF i j  j = 0 n - 1 = ∑ l = 0 m - 1 ⁢ dr jl is a matrix of contexts by items with input interactions, where each entry dr ji is 1 if the user introduced the item j in the community i and 0 otherwise, where 0<j<n, n=total number of contexts and where 0<1<m, m=total number of items submitted to the system, and  OF i j  j = 0 n - 1 = ∑ l = 0 m - 1 ⁢ dv jl is a matrix of contexts by items with output interactions, where each entry dv ji is 1 if the user followed the item j in the context of the community i and 0 otherwise, where 0<j<n, n=total number of contexts and where 0<1<m, m =total number of items submitted in the system.