Abstract: A user terminal is provided, including a communication interface unit which receives an application content at least part of which is encrypted, a storage unit which stores the received application content, a decryption unit which decrypts the application content, a user interface unit which receives a command to execute the application content, and a controlling unit which controls the decryption unit to install an application content stored in the storage unit in an encrypted state and decrypt the installed application content according to the execution command. Accordingly, an application, which is an executable content, may be downloaded and installed in a user terminal, and used and updated safely.

Abstract: A method and system for executing applications in a mobile device including receiving a request for execution of the application; determining whether the mobile device is located in a restricted area where execution of the application is controlled; and determining, when the mobile device is located in a restricted area, whether to execute the application requested for execution, according to a application execution policy that allows for execution of the application in the restricted area.

Abstract: A management server and method for providing a cloud computing service at high speed and reasonable cost, are provided. The management server provides a virtual machine to a client as a computing resource. The virtual machine is multiplexed by operating multiple virtual devices on a single virtual machine. Accordingly, demand for computing resources may be predicted in advance and may be provided to a user more efficiently.

Abstract: An apparatus and method for generating an animation of a virtual character using video data and a limited number of three-dimensional (3D) key models of a virtual character, are provided. The video data includes a sequence of two-dimensional image frames. The key models are blended together using the calculated weights, and a 3D facial expression most similar to the 2D facial expression included in each image frame may be generated. When the above operations are performed for input video data including a sequence of image frames, a facial animation, which makes facial expressions according to facial expressions included in the video data may be created.

Abstract: A method and system for executing applications in a mobile device including receiving a request for execution of the application; determining whether the mobile device is located in a restricted area where execution of the application is controlled; and determining, when the mobile device is located in a restricted area, whether to execute the application requested for execution, according to a application execution policy that allows for execution of the application in the restricted area.

Abstract: A user terminal is provided, including a communication interface unit which receives an application content at least part of which is encrypted, a storage unit which stores the received application content, a decryption unit which decrypts the application content, a user interface unit which receives a command to execute the application content, and a controlling unit which controls the decryption unit to install an application content stored in the storage unit in an encrypted state and decrypt the installed application content according to the execution command. Accordingly, an application, which is an executable content, may be downloaded and installed in a user terminal, and used and updated safely.

Abstract: A management server and method for providing a cloud computing service at high speed and reasonable cost, are provided. The management server provides a virtual machine to a client as a computing resource. The virtual machine is multiplexed by operating multiple virtual devices on a single virtual machine. Accordingly, demand for computing resources may be predicted in advance and may be provided to a user more efficiently.

Abstract: An apparatus and method for generating an animation of a virtual character using video data and a limited number of three-dimensional (3D) key models of a virtual character, are provided. The video data includes a sequence of two-dimensional image frames. The key models are blended together using the calculated weights, and a 3D facial expression most similar to the 2D facial expression included in each image frame may be generated. When the above operations are performed for input video data including a sequence of image frames, a facial animation, which makes facial expressions according to facial expressions included in the video data may be created.