Abstract: The present disclosure provides a method for experimentally determining a critical sand-carrying gas velocity of a shale gas well. The method includes: collecting well structure and production data, calculating parameter ranges of a gas flow velocity and a liquid flow velocity; carrying out a physical simulation experiment of sand carrying in the shale gas well to obtain the sand holding capacity of the wellbore under different experimental conditions, and calculating a sand holding rate; by observing a change curve of the sand holding rate of the wellbore vs. the gas flow velocity, defining a turning point, and sensitively analyzing the influence of other experimental variables on the turning point, to calculate the critical sand-carrying production of the shale gas well under different conditions. Therefore, this calculation method is simple and applicable, and provides a theoretical basis for the optimization design of water drainage and gas production process.

Abstract: Disclosed are a method and system for protecting intellectual property rights on digital content using smart propertization. The method of protecting intellectual property rights on digital content includes determining whether to decode encoded digital content based on the digital data indicative of a license for the digital content recorded on a blockchain.

Abstract: Disclosed are a method and an apparatus for providing services in a virtual desktop environment. A method for providing services in a virtual desktop environment according to an exemplary embodiment of the present invention may include: (a) receiving a VDI service request for a virtual desktop infrastructure (VDI); (b) determining component information of a basic VDI image in response to the VDI service request; (c) receiving external service related information associated with the basic VDI image from a content management system (CMS) server; and (d) generating a final VDI image for the VDI service by reflecting the component information and the external service related information to the basic VDI image.

Abstract: An information management method and system for managing consent for and use of information using a blockchain are provided. The information management method comprises: receiving a request to store a user agreement to the processing of the user's information from a service provider providing a service to the user; recording the user agreement on a blockchain; providing the service provider a response to the request to store the user agreement; receiving a third-party certification request for the provision of information from the user, regarding the information provided to the service provider; and providing a third-party certification for the provision of information to the user.

Abstract: Disclosed are a method and system for providing user notification when personal information is used in a speech controller. A method of providing user notification may include receiving information monitored for reference to personal information in a process of processing a user's query in a voice service, storing a personal information utilization history for each user and for each service based on the monitored information, determining the suitability of the reference to the personal information based on the monitored information, determining whether the personal information is included in a response when generating the response to the user's query, generating and providing guide information indicating that the personal information is included in the response if the personal information is included in the response, and providing the response to the user's query based on feedback from the user for the guide information.

Abstract: Provided are a method and system of providing personal information on the basis of a blockchain. The blockchain-based personal information providing method includes making a data privacy-related contract with a user and providing user data, which corresponds to personal information of the user according to the data privacy-related contract, to a service for accessing the user data using a contract with the service.

Abstract: Big data analytics is being used by many market participants. PII (Personally Identifiable Information) (e.g., age, race, social security number, address, etc.) plays a vital role in providing user-centric services. Many IT companies collect, store and process PII of their customers by means of various mobile applications. The example embodiments may explain how collective permission gathering through multiple Android applications by same publishers can disclose user's PII by using two new PII risk factors, and determine total risk factor for PII.

Abstract: Disclosed are a method and system for protecting intellectual property rights on digital content using smart propertization. The method of protecting intellectual property rights on digital content includes determining whether to decode encoded digital content based on the digital data indicative of a license for the digital content recorded on a blockchain.

Abstract: In some embodiments, a method for risk identification of personal information of a service/platform provider side is provided. A specification is received related to data usage for at least one among service and application of a third party side from a device of the third party side, and is stored in data storage of the service/platform provider side. User consent information is received from a user side using at least one among the service and application. The received information is stored in the data storage of the service/platform provider side. A process is inspected and monitored related to data storing and processing in user environment or platform environment of the user side using at least one among the service and application. A monitoring function is provided for data stored in the data storage of the service/platform provider side in connection with at least one among the service and application.

Abstract: An information management method and system for managing consent for and use of information using a blockchain are provided. The information management method comprises: receiving a request to store a user agreement to the processing of the user's information from a service provider providing a service to the user; recording the user agreement on a blockchain; providing the service provider a response to the request to store the user agreement; receiving a third-party certification request for the provision of information from the user, regarding the information provided to the service provider; and providing a third-party certification for the provision of information to the user.

Abstract: Disclosed are a method and system for providing user notification when personal information is used in a speech controller. A method of providing user notification may include receiving information monitored for reference to personal information in a process of processing a user's query in a voice service, storing a personal information utilization history for each user and for each service based on the monitored information, determining the suitability of the reference to the personal information based on the monitored information, determining whether the personal information is included in a response when generating the response to the user's query, generating and providing guide information indicating that the personal information is included in the response if the personal information is included in the response, and providing the response to the user's query based on feedback from the user for the guide information.

Abstract: An information management method and system for managing consent for and use of information using a blockchain are provided. The information management method comprises: receiving a request to store a user agreement to the processing of the user's information from a service provider providing a service to the user; recording the user agreement on a blockchain; providing the service provider a response to the request to store the user agreement; receiving a third-party certification request for the provision of information from the user, regarding the information provided to the service provider; and providing a third-party certification for the provision of information to the user.

Abstract: Disclosed are a method and system for providing user notification when personal information is used in a speech controller. A method of providing user notification may include receiving information monitored for reference to personal information in a process of processing a user's query in a voice service, storing a personal information utilization history for each user and for each service based on the monitored information, determining the suitability of the reference to the personal information based on the monitored information, determining whether the personal information is included in a response when generating the response to the user's query, generating and providing guide information indicating that the personal information is included in the response if the personal information is included in the response, and providing the response to the user's query based on feedback from the user for the guide information.

Abstract: An information management method and system for managing consent for and use of information using a blockchain are provided. The information management method comprises: receiving a request to store a user agreement to the processing of the user's information from a service provider providing a service to the user; recording the user agreement on a blockchain; providing the service provider a response to the request to store the user agreement; receiving a third-party certification request for the provision of information from the user, regarding the information provided to the service provider; and providing a third-party certification for the provision of information to the user.

Abstract: Disclosed are a method and system for providing user notification when personal information is used in a speech controller. A method of providing user notification may include receiving information monitored for reference to personal information in a process of processing a user's query in a voice service, storing a personal information utilization history for each user and for each service based on the monitored information, determining the suitability of the reference to the personal information based on the monitored information, determining whether the personal information is included in a response when generating the response to the user's query, generating and providing guide information indicating that the personal information is included in the response if the personal information is included in the response, and providing the response to the user's query based on feedback from the user for the guide information.

Abstract: Disclosed herein are method and system for modifying transactions already recorded on blockchains. The method for managing transactions based on blockchains may include a process for proceeding with mining blocks by separating approval and modification of transactions by using transaction approval block for proving approval of transactions and transaction modification block for proving modification of transactions.

Abstract: Disclosed is a method using an environmental-friendly and artificial freezing technique for sealing and displacement of a soil pollutant. The method for displacement of the soil pollutant comprises: performing an artificial freezing technique on an area and depth of a surveyed contaminated site to form a sealed frozen wall along the perimeter of the contaminated site, by using the excellent permeation resistance function of the frozen wall to seal the contaminated site and to prevent the pollutant from spreading further; selecting a freezing temperature of ?10° C. to ?30° C. according to characteristics of the freezing temperature and precipitation rate of the pollutant, by controlling the freezing rate to 1 cm/day to 10 cm/day, and performing freezing displacement of the soil pollutant from outside to inside using a principle of freezing purification, to concentrate the pollutant; and subjecting the remaining high concentration of contaminated soil to chemical treatment.

Abstract: Method and system for risk identification of personal information are provided. According to an example of embodiments, framework and platform for personal information management satisfying GDPR (General Data Protection Regulation) are provide by determining whether GDPR policy is satisfied in IoT (Internet of Things) environment.

Abstract: A method and a system for correcting a field of view (FOV) using tilt information of a user terminal upon playback of a 360-degree image. The method includes requesting to load a 360-degree image, correcting at least one of a tilt of the mobile terminal and a sensing value associated with a gesture input of the mobile terminal, for determining an FOV of the 360-degree image, with respect to the 360-degree image, and playing back the 360-degree image by exposing an FOV depending on at least the corrected tilt or the corrected sensing value.

Abstract: Big data analytics is being used by many market participants. PII (Personally Identifiable Information) (e.g., age, race, social security number, address, etc.) plays a vital role in providing user-centric services. Many IT companies collect, store and process PII of their customers by means of various mobile applications. The example embodiments may explain how collective permission gathering through multiple Android applications by same publishers can disclose user's PII by using two new PII risk factors, and determine total risk factor for PII.