Abstract: According to at least some example embodiments, a computer-readable medium stores computer-executable program instructions that, when executed by a processor, cause the processor to perform operations including, obtaining plane information of a plane by using first distances from a terminal to a plurality of points on the plane; obtaining a normal vector of the plane by using direction information of the terminal measured by a direction sensor and the plane information; determining, based on the normal vector, a parameter of an object to be displayed on the plane; and displaying, on a display of the terminal, the object according to the determined parameter.

Abstract: A method of processing a settlement includes setting a chatroom for interaction with a payment method; and sending payment details using the payment method to the chatroom and sharing the payment details with a member participating in the chatroom.

Abstract: A method, a computer device, and a non-transitory computer-readable recording medium for preventing an erroneous deposit of cryptocurrency are provided. A method of preventing an erroneous deposit of cryptocurrency includes providing an interface for inputting transaction request information including a target coin and a wallet address; verifying at least one of the target coin and the wallet address using a trading environment of a target exchange corresponding to the transaction request information; and processing a transaction according to the transaction request information based on a verification result.

Abstract: A method, system, and recording medium for managing official accounts is disclosed. An official account management method includes the steps of setting a relation between official accounts that are accounts of sponsors on a messenger, and managing the official accounts by classifying the official accounts in a related account group in accordance with the relation between the official accounts.

Abstract: An information processing method to be carried out by a terminal of a user who is included in a first group including a first plurality of users and in a second group including a second plurality of users, including displaying a first image including first contents transmitted and received among first terminals of the first plurality of users in the first group on a display region of the terminal, and transmitting, via a communication interface of the terminal, information relating to a first content among the first contents included in the first image displayed on the display region and a second content inputted via the terminal, the second content associated with the first content and included in a second image including second contents transmitted and received between second terminals of the second plurality of users in the second group may be provided.

Abstract: An information processing method includes: a receiving step for receiving a message; an outputting step of outputting display information for associating and displaying the message received in the reception step with an icon associated with an account that is associated with the user that has transmitted the message; and a changing step of changing the ion associated with the account that has transmitted the message, if the message includes icon information to be displayed as the speaker of the message. When the changing step has changed the icon, the outputting step outputs display information for associating and displaying the message received in the receiving step with the changed icon.

Abstract: A system for providing a messaging service includes a talk storage for storing talk information in association with first user identification information, the talk information including a message from a second user to a first user, the first user identification information identifying the first user, and processing circuitry for outputting specification information specifying the one or more registered messages based on an acquisition of one or more registered messages, adding a first registered message specified by the first specification information, to the talk storage, based on each of one or more first requests accompanied by the first user identification information and first specification information included in the specification information, and adding a second registered message specified by the second specification information, to the talk storage, based on each of one or more second requests accompanied by the first user identification information and second specification information included in th

Abstract: Provided are an artificial intelligence (AI) learning method and system and an answer relay method and system using an AI. According to an AI learning method, an AI may transmit a question to users through a messaging service and may acquire learning data for the AI through reactions of the user to the transmitted question.

Abstract: A server device includes an identification information obtaining unit, a position information specifying unit, a storage unit, a percentage calculating unit, and a fare calculating unit. The identification information obtaining unit obtains operation identification information for identifying an operation of a vehicle and user identification information for identifying users who utilize the operation. The position information specifying unit specifies riding position information and drop off position information on the individual users. The storage unit stores the operation identification information, the user identification information, the riding position information, and the drop off position information in association with one another. The percentage calculating unit calculates percentages of an operation fare for the operation to be paid by the individual users. The fare calculating unit calculates amounts to be paid by the individual users.

Abstract: Disclosed is a server capable of improving convenience for a user at the time of service registration. The server includes a service providing unit which provides a service to an unregistered user who is not registered in the service when the unregistered user accesses the service, and a storage device which stores a service history provided to the unregistered user by the service providing unit. When the unregistered user is registered in the service, the service providing unit allows the unregistered user to use the service while taking over a service history used when the unregistered user is not registered in the service.

Abstract: Disclosed are a method, a system, and a non-transitory computer-readable record medium for a reward on a cryptocurrency exchange. A cryptocurrency reward method includes determining a reward amount for a user that meets a reward condition in a cryptocurrency exchange, the reward amount being in a fiat currency, setting at least one cryptocurrency as at least one selected cryptocurrency based on a selection of the user, converting the reward amount into the at least one selected cryptocurrency to obtain at least one converted reward amount, and transferring the at least one converted reward amount to an account of the user.

Abstract: An electronic device, a method, and a computer-readable recording medium are provided for deactivating a chat room of a messenger application. The electronic device is configured for: receiving a deactivation request for one or more chat rooms, in which the deactivation request is associated with a chat room configuration, and the chat room configuration includes a deactivation condition for the one or more chat rooms; storing the chat room configuration including the deactivation condition for the one or more chat rooms based on the deactivation request; and deactivating the one or more chat rooms based on determining whether or not the deactivation condition for the one or more chat rooms is satisfied.

Abstract: The display method executed by a terminal including setting a first user name of the first user on the terminal, displaying the first user name and a second user name of the second user in a display area of the terminal based on a first input on the terminal, deleting the displayed second user name from the display area of the terminal based on a second input constituting at least a portion of the set first user name being inputted into the terminal, the displayed second user name being different from the set first user name, based on a second input constituting a part of the first user name, displaying first information representing that a message is destined for the first user, based on a selection of the first user by the user of the terminal, and transmitting the message including the first information to the terminals may be provided.

Abstract: An information processing method includes: a receiving step for receiving a message; an outputting step of outputting display information for associating and displaying the message received in the reception step with an icon associated with an account that is associated with the user that has transmitted the message; and a changing step of changing the ion associated with the account that has transmitted the message, if the message includes icon information to be displayed as the speaker of the message. When the changing step has changed the icon, the outputting step outputs display information for associating and displaying the message received in the receiving step with the changed icon.

Abstract: Disclosed is a server capable of improving convenience for a user at the time of service registration. The server includes a service providing unit which provides a service to an unregistered user who is not registered in the service when the unregistered user accesses the service, and a storage device which stores a service history provided to the unregistered user by the service providing unit. When the unregistered user is registered in the service, the service providing unit allows the unregistered user to use the service while taking over a service history used when the unregistered user is not registered in the service.

Abstract: Provided are methods and systems for providing a game based on a video call and object recognition. A game providing method of an electronic device configured as a computer including displaying game content on a video call screen in response to a video call being established between a user of the electronic device and a counterpart through a voice over Internet protocol (VoIP) channel, recognizing an object in a call image as motion data with respect to the game content, and controlling a game element corresponding to the game content using a result of the recognizing may be provided.

Abstract: A method, system, and recording medium for managing official accounts is disclosed. An official account management method includes the steps of setting a relation between official accounts that are accounts of sponsors on a messenger, and managing the official accounts by classifying the official accounts in a related account group in accordance with the relation between the official accounts.

Abstract: Provided is an image decompression method of decompressing an image including a first frame and at least one second frame following the first frame, based on the first frame and landmark location information of the at least one second frame, the image decompression method including: obtaining the first frame; setting at least one landmark of the first frame; obtaining the landmark location information of the at least one second frame; and generating the at least one second frame from the first frame, based on the landmark location information of the at least one second frame, wherein the landmark location information of the at least one second frame is location information of the set at least one landmark of the first frame, in the at least one second frame.

Abstract: A method of determining a highlight section of a sound source includes obtaining a sound source and classification information of the sound source, and learning a neural network by using the sound source and the classification information. The neural network includes an input layer including a node corresponding to a feature value of each of a plurality of sections obtained by splitting the sound source according to a time axis, an output layer including a node corresponding to the classification information, a hidden layer defined between the input layer and the output layer, a first function between the input layer and the hidden layer, and a second function between the hidden layer and the output layer, wherein the first function includes an attention model for calculating a weighted sum of the feature value of each section. The highlight section of the sound source is determined based on weight information of a feature value node of each section included in the first function.

Abstract: A messenger-linked service system and method using a social graph based on a human relationship of a messenger are provided. The messenger-linked service system may include a relationship extraction unit to extract a social graph of a friend relationship of the messenger, a selection unit to select data in the messenger-linked service, and an execution unit to either transmit or to execute a sharing request of the selected data to the friend using the social graph.