Abstract: A terminal may include a display that is divided into at least two areas, when a real time broadcasting, where a user of the terminal is a host, starts through a broadcasting channel, and of which one area of the at least two areas is allocated to the host; an input/output interface that receives a voice of the host; a communication interface that receives one item selected of at least one or more items and a certain text from a terminal of a certain guest, of at least one or more guests who entered the broadcasting channel; and a processor that generates a voice message converted from the certain text into the voice of the host or a voice of the certain guest.

Abstract: A training method of a conversation model according to various example embodiments of the present disclosure may include identifying a first context, identifying a first response set corresponding to the first context based on a first model, identifying a response subset selected from the first response set based on a gold response corresponding to the first context and training a second model based on the first context information and the response subset.

Abstract: Disclosed is a method of training a dialogue model in an electronic device, the method including selecting a first context from a first dialogue data set including at least one pair of a context and a response corresponding to the context, generating a first response corresponding to the first context through a first dialogue model, generating an augmented dialogue dataset by incorporating a pair of the first context and the first response corresponding to the first context into the first dialogue data set, and training a second dialogue model based on the augmented dialogue dataset.

Abstract: An operating method of a server, comprising, mediating a video call session between a first terminal and a second terminal; receiving satisfaction information on the video call session of a user of the first terminal from the first terminal; preparing combination of a specific type of personal information about a user of the first terminal and facial characteristic information about a user of the second terminal; calculating a correlation between the combination and the satisfaction information corresponding to the combination; receiving a video call mediating request from a third terminal and from a plurality of candidate terminals, and predicting satisfaction information of a user of the third terminal with respect to each of the candidate terminals; and choosing a fourth terminal among the candidate terminals.

Abstract: Provided is a method of visually displaying a countdown time on a graphical user interface. A countdown time is set, the width and opacity of an area that changes as the set time is sequentially counted down are determined, and the area that changes based on the determined width and opacity is output on the graphical user interface.

Abstract: According to the present disclosure, a method of providing a profile of a user using an electronic apparatus includes identifying states of a plurality of online users accessing a profile provision system, determining at least one or more second users to be displayed on a terminal of a first user among the plurality of online users based on the states of the plurality of online users, and providing profile information of the at least one or more second users to the terminal of the first user, wherein the profile information of the at least one or more second users may include an indicator indicating a state of a corresponding second user.

Abstract: A terminal includes a communication interface for receiving a plurality of profile information from a plurality of terminals, an input/output interface for receiving a first signal generated by a user of the terminal based on a certain profile information of the plurality of profile information, and a processor for checking whether the terminal has a history of receiving a second signal from a terminal that provided the certain profile information, and for attempting, by the terminal, a video call to the terminal that provided the certain profile information depending on a result of the check, and the input/output interface may display the certain profile information and video call waiting time during the video call waiting time after attempting the video call.

Abstract: This application relates to an image display device and method. In one aspect, the image display device includes a communication interface, a user interface, a memory and a processor. The processor may receive, from a first terminal through the communication interface, a stream including a plurality of images captured by the first terminal. The processor may also determine whether the received stream includes a first image in which no face is detected among the plurality of images. The processor may further, in response to determining that the received stream includes the first image, perform image processing on the first image to generate a second image. The processor may further display, through the user interface, the plurality of images by replacing the first image with the second image.

Abstract: Provided are a mediating apparatus and a mediating method, and a computer-readable recording medium thereof. The mediating method includes: receiving a plurality of images from a first user; generating at least one new image by referring to the plurality of received images; extracting a feature of a face included in the at least one generated new image; searching for a second user corresponding to the feature that has been extracted; and providing the first user with information about the second user.

Abstract: Disclosed are a terminal, an operating method thereof, and a computer-readable recording medium. The operating method includes establishing a video call session between a first terminal and a second terminal, receiving, by the second terminal, data obtained by the first terminal, sequentially storing, by the second terminal, the data received from the first terminal in a buffer size, performing, by the second terminal, a validity check on the data stored in the buffer, and processing, by the second terminal, the data in response to a result of the validity check.

Abstract: Provided is a terminal. The terminal may include an input and output interface configured to receive a first video capturing a first user, a communication interface configured to transmit the first video or a first sound of the first user to a terminal of a counterpart and receive a second video or second sound, which is obtained by the terminal of the counterpart, through a video call session, a display configured to display the first video and the second video, and a processor configured to detect a specific event during the video call session, determine whether an inappropriate element is included in the first video or the first sound when the specific event is detected, and stop transmitting the first video or the first sound according to a result of the determination.

Abstract: Provided is an operation method for a terminal performing a call. A first terminal may receive a first like signal transmitted from a second terminal to a server, and may transmit, to the server, a second like signal regarding a second user of the second terminal. At this time, the first terminal may receive a signal for establishing a call connection between the first terminal and the second terminal, and may perform a call with the second terminal based on the signal.

Abstract: Provided is an operation method of a server for relaying a call. The server relays a preliminary call between a first terminal and a second terminal for a preset time, based on matching of a first user of the first terminal and a second user of the second terminal, and after the preset time has elapsed, receives, from the first terminal and the second terminal, a response as to whether to continue the preliminary call. The server may determine whether to proceed with a main call based on the received response.

Abstract: Provided is a method of visually displaying a countdown time on a graphical user interface. A countdown time is set, the width and opacity of an area that changes as the set time is sequentially counted down are determined, and the area that changes based on the determined width and opacity is output on the graphical user interface.

Abstract: Provided are a mediation method and a computer-readable recording medium. A mediation method according to an example embodiment of the present disclosure includes establishing one video call session between a plurality of terminals, receiving videos obtained from each of the plurality of terminals, analyzing characteristics of the video call session, and in response to the analysis result, determining respective qualities of videos to be transmitted to each of the plurality of terminals. The plurality of terminals includes one host terminal and at least one guest terminal.

Abstract: A server may include a communication interface for receiving a plurality of profile information from a plurality of terminals; and a processor configured to divide users of the plurality of terminals into a plurality of groups based on a first criterion, to divide users of a first gender included in each group into a plurality of subgroups based on a second criterion different from the first criterion, to divide users of a second gender different from the first gender, included in each group into a plurality of matching groups to correspond to each of the plurality of subgroups, and to provide profile information of users included in each of the plurality of matching groups corresponding to each of the plurality of subgroups among the plurality of profile information to users included in each of the plurality of subgroups.

Abstract: A method of providing a video stream based on machine learning in an electronic device according to various example embodiments may include receiving a source video stream which is streamed from a first device to at least one other device, confirming whether an event is detected on the source video stream using a learning model trained through machine learning on the basis of at least one frame of the source video stream, and determining whether to restrict streaming of the source video stream from the first device on the basis of the event detection. In addition to the method, other example embodiments are possible.

Abstract: A method of performing a convolutional operation in a convolutional neural network includes: obtaining input activation data quantized with a first bit from an input image; obtaining weight data quantized with a second bit representing a value of a parameter learned through the convolutional neural network; binarizing each of the input activation data and the weight data to obtain a binarization input activation vector and a binarization weight vector; performing an inner operation of the input activation data and weight data based on a binary operation with respect to the binarization input activation vector and the binarization weight vector and distance vectors having the same length as each of the first bit and the second bit, respectively; and storing a result obtained by the inner operation as output activation data.

Abstract: Provided is a method of transforming a landmark including: receiving an input image including a facial image of a first person and a landmark corresponding to the facial image; estimating a transformation matrix corresponding to the landmark; and calculating an expression landmark and an identity landmark corresponding to the input image by using the transformation matrix.

Abstract: One or more embodiment relates to a video communication device, video communication method, and a video communication mediating method, which are capable of preventing a user in a video communication from being exposed to an inappropriate image or sound from the other party. One or more embodiment may provide a video communication method comprising establishing a first video communication session with a first terminal, consecutively receiving images or sounds from the first terminal through the first video communication session, examining at least a portion of images or sounds received in a period of recent specific time among the received images or sounds, and blocking an output of at least a portion of the received images or sounds or reporting a user of the first terminal as an abusive user to a first server according to the result of the examining.