Abstract: Provided is a disease prediction method and apparatus. The disease prediction apparatus may receive a medical image and clinical information, identify, from the medical image, quantitative data comprising a volume of at least one anatomical structure, and predict a disease occurrence based on the clinical information and the quantitative data. An artificial intelligence model may be used for each of identification of an anatomical structure and prediction of the disease occurrence. The disclosure was supported by the “AI Precision Medical Solution (Doctor Answer 2.0) Development” project hosted by Seoul National University Bundang Hospital (Project Serial No.: 1711151151, Project No.: S0252-21-1001).

Abstract: Disclosed is a medical image conversion method and apparatus. The medical image conversion apparatus trains a first artificial intelligence model to output a second contrast-enhanced image, based on first learning data including a pair of a first contrast-enhanced image and a first non-contrast image, and trains a second artificial intelligence model to output a second non-contrast image, based on second learning data including a pair of the first non-contrast image of the first learning data and the second contrast-enhanced image. The disclosure was supported by the “AI Precision Medical Solution (Doctor Answer 2.0) Development” project hosted by Seoul National University Bundang Hospital (Project Serial No.: 1711151151, Project No.: S0252-21-1001).

Abstract: A file protection method of a computer apparatus including a processor, the method including extracting classes from an executable file of a package file, classifying the classes into class groups, adding a loading code to a first class group among the class groups, the loading code configured to cause sequential loading of the class groups to a memory in a random loading order in response to execution of the package file, adding an integrity code to a second class group among the class groups, the integrity code configured to verify an integrity of a corresponding class group among the class groups or a previous class group among the class groups, the previous class group including the loading code configured to cause the corresponding class group to load, and regenerating the package file using the class groups after the adding the loading code and the adding the integrity code.

Abstract: A self-cleaning device comprises at least one first electrode disposed on a solid material layer, a first dielectric layer disposed on the first electrode, a hydrophobic layer disposed on the first dielectric layer, and at least one mechanical oscillation unit. Electrical oscillation for oscillating a droplet in a horizontal direction is generated by applying a first electric signal to the first electrode, thereby merging droplets formed on the hydrophobic layer, the mechanical oscillation unit moves the merged droplets in a specific direction or atomizes the merged droplets to remove the merged droplets by generating mechanical oscillation for oscillating the droplet in a vertical direction, and each of the droplets has a volume smaller than 3 ?l, and new droplet having a volume more than 3 ?l is generated by the merging.

Abstract: A non-transitory computer-readable recording medium storing instructions that, when executed by a processor, cause the processor a computer to implement a content providing method in conjunction with a computer system may be provided. The content providing method may include providing a game program comprising a game module and a simulation module to a user terminal, the simulation module having same input and output functions as those of the game module, receiving play results comprising first output information of the game module and second output information of the simulation module from the user terminal, the play results are generated by the user terminal while not communicating with a server, and determining whether the a game play at the game module is played fairly based on the first output information of the game module and the second output information of the simulation module.

Abstract: A file protection method of a computer apparatus including a processor, the method including extracting classes from an executable file of a package file, classifying the classes into class groups, adding a loading code to a first class group among the class groups, the loading code configured to cause sequential loading of the class groups to a memory in a random loading order in response to execution of the package file, adding an integrity code to a second class group among the class groups, the integrity code configured to verify an integrity of a corresponding class group among the class groups or a previous class group among the class groups, the previous class group including the loading code configured to cause the corresponding class group to load, and regenerating the package file using the class groups after the adding the loading code and the adding the integrity code.

Abstract: Disclosed is a hooking detection method and system that may specify position information of a function referenced by an executable module from an outside or provided to the outside or a unique value of an executable code, and may determine application programming interface (API) hooking based on a classification acquired by comparing unique values or by clustering the unique values.

Abstract: A non-transitory computer-readable recording medium storing instructions that, when executed by a processor, cause the processor a computer to implement a content providing method in conjunction with a computer system may be provided. The content providing method may include providing a game program comprising a game module and a simulation module to a user terminal, the simulation module having same input and output functions as those of the game module, receiving play results comprising first output information of the game module and second output information of the simulation module from the user terminal, the play results are generated by the user terminal while not communicating with a server, and determining whether the a game play at the game module is played fairly based on the first output information of the game module and the second output information of the simulation module.

Abstract: Provided are methods and/or systems for evaluating security of an application. A security evaluation method including storing pattern-information-by-perspective for analyzing a file package based on an obfuscation perspective and a vulnerability perspective, receiving a registration on the file package to be distributed to users for installing and executing an application, analyzing the registered file package based on the pattern-information-by-perspective and generating analysis information of the obfuscation perspective and analysis information of the vulnerability perspective, and providing the generated analysis information of the obfuscation perspective and the analysis information of the vulnerability perspective may be provided.

Abstract: A method of providing a game service including providing a game program including a game module and a simulation module, the simulation module having same input and output functions as those of the game module, receiving, from a user terminal, a play result including output information of the game module with respect to input information and output information of the simulation module with respect to the input information, and determining whether play is fair based on the output information of the game module and the output information of the simulation module may be provided.

Abstract: A content streaming service method for reducing communication cost and a system therefore are provided. The method includes receiving, by an electronic device, a file of content in a streaming scheme from a server through a network, and reproducing the content through an application driven in the electronic device, storing, by the electronic device, the received file in a local storage, generating, by the electronic device, a local server, the local server configured to operate in association with a memory of the electronic device, retrieving, by the electronic device, the file stored in the local storage according to the streaming scheme through the local server, and re-reproducing the content through the application.

Abstract: A non-transitory computer-readable medium stores computer-executable instructions that, when executed by a computer, cause the computer to perform operations including generating a changed optimization file by changing an original optimization file, the original optimization file being an optimization file created at a point in time at which an intermediate language file for an application is loaded; storing the changed optimization file; creating and storing verification information for verifying whether the intermediate language file is changed; determining whether the intermediate language file is changed based on the stored verification information in response to reloading of the intermediate language file; and creating a new optimization file by deleting the changed optimization file or recovering the original optimization file based on the changed optimization file and reusing the original optimization file, based on whether the intermediate language file is changed.

Abstract: Provided are methods and/or systems for evaluating security of an application. A security evaluation method including storing pattern-information-by-perspective for analyzing a file package based on an obfuscation perspective and a vulnerability perspective, receiving a registration on the file package to be distributed to users for installing and executing an application, analyzing the registered file package based on the pattern-information-by-perspective and generating analysis information of the obfuscation perspective and analysis information of the vulnerability perspective, and providing the generated analysis information of the obfuscation perspective and the analysis information of the vulnerability perspective may be provided.

Abstract: Provided is a method, apparatus, system, and non-transitory computer readable medium for extending at least one function of a package file. A function addition method executed at a computer may include storing a package file for an application; extracting, from the package file, a file in which information about a class most initially called in response to execution of the application is set as configuration information of the application; and setting a class name of a new class to an item to which information about the most initially called class is set in the extracted file.

Abstract: A method of providing a game service including providing a game program including a game module and a simulation module, the simulation module having same input and output functions as those of the game module, receiving, from a user terminal, a play result including output information of the game module with respect to input information and output information of the simulation module with respect to the input information, and determining whether play is fair based on the output information of the game module and the output information of the simulation module may be provided.

Abstract: Provided is a method, apparatus, system, and non-transitory computer readable medium for extending at least one function of a package file. A function addition method executed at a computer may include storing a package file for an application; extracting, from the package file, a file in which information about a class most initially called in response to execution of the application is set as configuration information of the application; and setting a class name of a new class to an item to which information about the most initially called class is set in the extracted file.

Abstract: A non-transitory computer-readable medium stores computer-executable instructions that, when executed by a computer, cause the computer to perform operations including generating a changed optimization file by changing an original optimization file, the original optimization file being an optimization file created at a point in time at which an intermediate language file for an application is loaded; storing the changed optimization file; creating and storing verification information for verifying whether the intermediate language file is changed; determining whether the intermediate language file is changed based on the stored verification information in response to reloading of the intermediate language file; and creating a new optimization file by deleting the changed optimization file or recovering the original optimization file based on the changed optimization file and reusing the original optimization file, based on whether the intermediate language file is changed.