Nippon Telegraph and Telephone Corporation

Tomoaki Washio

Masahiro Shiraishi

Hiroki Nagayama

Asami Miyajima

Tetsutaro Kobayashi

Reo Yoshida

Hitoshi Fuji

Yoshihito Oshima

Keita Hasegawa

Takafumi Harada

Tsuyoshi Miyamoto

Yuichiro Dan

Junya Akiba

An action learning system includes a memory, and a processor configured to train, based on first data indicating a property of an environment in which data is collected from multiple devices and to which an action determined by a first neural network according to a state of the environment is applied and second data indicating a property of the environment to which the action is not applied, a second neural network that calculates a similarity degree between distributions of the first data and the second data, and train, after the second neural network is trained, the first neural network that determines an action according to the state of the environment, by reinforcement learning including, in a reward, a value that changes based on a relationship between a similarity degree and a parameter set by a user, the similarity degree being calculated by the second neural network based.

Behavior learning system, behavior learning method and program

A communication system that performs communication among a plurality of nodes by a broker-less type publishing/subscribing model, the communication system including a computer including a memory and a processor configured to receive communication data among the plurality of nodes; based on the communication data, create first relationship information indicating a relationship among the nodes regarding transmission and reception of the communication data, second relationship information indicating a relationship among the nodes regarding a belonging domain and whether the nodes are on a publisher side or on a subscriber side, and third relationship information indicating a relationship among the nodes regarding a topic to be published and subscribed; and create configuration information indicating a network configuration of the communication system by associating the first relationship information, the second relationship information, and the third relationship information.

Communication system, configuration management apparatus, configuration management method, and program

A communication system that performs communication among a plurality of nodes by a broker-less type publishing/subscribing model, includes: a computer including a memory and a processor configured to detect distribution of unauthorized data from one application that is handled with priority on a subscriber side among one or more applications that are redundant on one or more of the nodes and functioning as a publisher side; and switch an application handled with priority on the subscriber side to another application different from the one application among the one or more applications in a case where distribution of the unauthorized data is detected.

Communication system, inspection apparatus, inspection method, and program

A leakage prevention apparatus stores an assumed use permission range, stores an information asset caused to be in an unavailable state by encryption, stores an information asset caused to be in an available state by decryption, and stores an information asset caused to be in a leakage-concerned state. When use of an information asset in the unavailable state is requested by an application corresponding to the use permission range, the information asset is decrypted to cause the information asset to be in the available state. When the use of the information asset in the available state by the application ends, the information asset is encrypted to cause the information asset to be in the unavailable state. When use of an information asset in the unavailable state is requested by an application not corresponding to the use permission range, the information asset is caused to be in the leakage-concerned state.

Leakage prevention apparatus, leakage prevention method and program

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Musashino, Japan

Tomoaki Washio