Abstract: An information processing apparatus includes an information collecting unit that collects information about one or more users and information about one or more documents, and a processor that receives, for processing, the information collected by the information collecting unit and that is configured to, through execution of a program, generate a bipartite network in which one or more nodes corresponding to the one or more users are linked to one or more nodes corresponding to the one or more documents, generate property information including user property information of the one or more users and document property information of the one or more documents, generate a network with property information by combining the bipartite network with the property information, and select a recommendation document for a target user by using the network with property information.

Abstract: A non-transitory computer readable medium storing a program causing a computer to execute a process for information processing, the process including: obtaining input data that represents attributes of each subject among subjects; generating a bipartite network which includes the subjects and the attributes included in the input data as nodes and in which a node that corresponds to each subject among the subjects are connected to nodes that correspond to the attributes of the subject via links; and performing clustering of a group of the nodes by performing iterative calculations of a stochastic process of transitions between the nodes via the links in the bipartite network.

Abstract: An information processing apparatus includes an acquisition unit that acquires information related to a network including a group of nodes, and a group of real links that connects the nodes, an adding unit that generates an extension network by adding to the network at least a virtual link that link nodes that are not linked by a real link, and a clustering unit that clusters the group of the nodes by iteratively calculating a stochastic process of a transition between the nodes linked by the real link and the virtual link in the extension network until the stochastic process is regarded to be in a steady state.

Abstract: An information processing apparatus includes: a network information acquisition unit that acquires network information which includes target nodes and adjacent nodes; a classification ratio calculation unit that calculates a classification ratio, in which the target nodes are respectively classified as a plurality of communities corresponding to a predetermined number in the network information, so as to have correlation according to given resolutions with a classification ratio in which the adjacent nodes are respectively classified as the plurality of communities; a first type community generation unit that generates one or more first type communities; a classification ratio updating unit that updates the classification ratio relevant to the target nodes so as to have correlation with the classification ratio in which the adjacent nodes are respectively classified as the plurality of communities; and a second type community generation unit that generates one or more second type communities.

Abstract: A non-transitory computer readable medium storing a program causing a computer to execute a process for information processing, the process including: obtaining input data that represents attributes of each subject among subjects; generating a bipartite network which includes the subjects and the attributes included in the input data as nodes and in which a node that corresponds to each subject among the subjects are connected to nodes that correspond to the attributes of the subject via links; and performing clustering of a group of the nodes by performing iterative calculations of a stochastic process of transitions between the nodes via the links in the bipartite network.

Abstract: An information processing apparatus includes an acquisition unit that acquires information related to a network including a group of nodes, and a group of real links that connects the nodes, an adding unit that generates an extension network by adding to the network at least a virtual link that link nodes that are not linked by a real link, and a clustering unit that clusters the group of the nodes by iteratively calculating a stochastic process of a transition between the nodes linked by the real link and the virtual link in the extension network until the stochastic process is regarded to be in a steady state.

Abstract: An information processing apparatus includes: a network information acquisition unit that acquires network information which includes target nodes and adjacent nodes; a classification ratio calculation unit that calculates a classification ratio, in which the target nodes are respectively classified as a plurality of communities corresponding to a predetermined number in the network information, so as to have correlation according to given resolutions with a classification ratio in which the adjacent nodes are respectively classified as the plurality of communities; a first type community generation unit that generates one or more first type communities; a classification ratio updating unit that updates the classification ratio relevant to the target nodes so as to have correlation with the classification ratio in which the adjacent nodes are respectively classified as the plurality of communities; and a second type community generation unit that generates one or more second type communities.