Abstract: Systems, methods, and non-transitory computer-readable media can collect a set of training videos as training data, wherein the set of training videos are labeled with one or more labels based on one or more video quality metrics associated with an evaluation objective. A machine learning model is trained based on the training data. A video to be evaluated is received. The video is assigned to a first video quality category of a plurality of video quality categories based on the machine learning model.

Abstract: Systems, methods, and non-transitory computer-readable media can collect a set of training videos as training data, wherein the set of training videos are labeled with one or more labels based on one or more video quality metrics associated with an evaluation objective. A machine learning model is trained based on the training data. A video to be evaluated is received. The video is assigned to a first video quality category of a plurality of video quality categories based on the machine learning model.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting content items. In one aspect, a method includes identifying an opportunity to present a content item at a device and in a manner that precludes a user from accessing content of one or more applications executing on the device. Data relating to a status of each of the one or more applications are identified. A level of urgency for a user to access content of the one or more applications is determined based on the data. A response to the opportunity to present a content item is selected based on the level of urgency for the user to access content of the one or more applications. The response is selected from a first response that causes presentation of the content item and a second response that precludes presentation of the content item.

Abstract: According to an implementation, a method for digital information retrieval in a social media platform includes transmitting, over a network, information to render a timeline of social content for a user of a client application. The timeline of social content includes messages posted on the messaging platform by user accounts that are connected to a user account of the user in a connection graph. The method includes computing, using a machine-learning algorithm inputted with relevance signals, a relevance level between the user account of the user and a user account not linked to the user account of the user in the connection graph, and transmitting information about a profile of the user to a computing device associated with the user account not linked to the user account of the user in response to the relevance level being greater than a threshold level.

Abstract: According to an implementation, a method for digital information retrieval in a social media platform includes transmitting, over a network, information to render a timeline of social content for a user of a client application. The timeline of social content includes messages posted on the messaging platform by user accounts that are connected to a user account of the user in a connection graph. The method includes computing, using a machine-learning algorithm inputted with relevance signals, a relevance level between the user account of the user and a user account not linked to the user account of the user in the connection graph, and transmitting information about a profile of the user to a computing device associated with the user account not linked to the user account of the user in response to the relevance level being greater than a threshold level.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting content items. In one aspect, a method includes identifying an opportunity to present a content item at a device and in a manner that precludes a user from accessing content of one or more applications executing on the device. Data relating to a status of each of the one or more applications are identified. A level of urgency for a user to access content of the one or more applications is determined based on the data. A response to the opportunity to present a content item is selected based on the level of urgency for the user to access content of the one or more applications. The response is selected from a first response that causes presentation of the content item and a second response that precludes presentation of the content item.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting content items. In one aspect, a method includes identifying an opportunity to present a content item at a device and in a manner that precludes a user from accessing content of one or more applications executing on the device. Data relating to a status of each of the one or more applications are identified. A level of urgency for a user to access content of the one or more applications is determined based on the data. A response to the opportunity to present a content item is selected based on the level of urgency for the user to access content of the one or more applications. The response is selected from a first response that causes presentation of the content item and a second response that precludes presentation of the content item.

Abstract: Systems, methods, and non-transitory computer-readable media can collect a set of training videos as training data, wherein the set of training videos are labeled with one or more labels based on one or more video quality metrics associated with an evaluation objective. A machine learning model is trained based on the training data. A video to be evaluated is received. The video is assigned to a first video quality category of a plurality of video quality categories based on the machine learning model.

Abstract: An electronic system includes: a control unit configured to: generate a media content for presenting on a device including a subcontent based on a content template, which includes a configurable element, determine a user information for identifying the device within a context, and update the subcontent with the configurable element, which is adjusted based on the media content and the context, and a communication interface, coupled to the control unit, configured to communicate the subcontent for presenting on the device.

Abstract: The present disclosure provides an ultrasonic diagnostic system formed of an ultrasonic diagnostic apparatus and a wireless communication terminal and applicable to a wireless communication terminal with various resolution levels, including the ultrasonic diagnostic apparatus which converts frame data obtained by collecting an echo signal at an ultrasonic probe into scan data corresponding to a resolution level of a display screen of the wireless communication terminal and the wireless communication terminal which receives the scan data from the ultrasonic diagnostic apparatus and scan-converts the scan data into an ultrasonic image adequate for the resolution level of the display screen thereof.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting content items. In one aspect, a method includes identifying an opportunity to present a content item at a device and in a manner that precludes a user from accessing content of one or more applications executing on the device. Data relating to a status of each of the one or more applications are identified. A level of urgency for a user to access content of the one or more applications is determined based on the data. A response to the opportunity to present a content item is selected based on the level of urgency for the user to access content of the one or more applications. The response is selected from a first response that causes presentation of the content item and a second response that precludes presentation of the content item.

Abstract: According to an implementation, a system includes a social media messaging platform configured to exchange messages, over a network, among a plurality of computing devices. The exchange of messages is based on a connection graph stored on the messaging platform. The social media messaging platform includes a registration manager configured to register an account for an entity to boost a social media presence of the entity on the social media messaging platform, and a social media presence booster having a machine-learning relevance engine configured to programmatically match the entity's content with relevant entities. The social media presence booster is configured to automatically and programmatically boost the entity's content to the relevant entities, and increase, over time, a number of connections in the connection graph between the account and other accounts on the social media messaging platform in response to the boosted content.

Abstract: According to an implementation, a method for digital information retrieval in a social media platform includes transmitting, over a network, information to render a timeline of social content for a user of a client application. The timeline of social content includes messages posted on the messaging platform by user accounts that are connected to a user account of the user in a connection graph. The method includes computing, using a machine-learning algorithm inputted with relevance signals, a relevance level between the user account of the user and a user account not linked to the user account of the user in the connection graph, and transmitting information about a profile of the user to a computing device associated with the user account not linked to the user account of the user in response to the relevance level being greater than a threshold level.

Abstract: A portable ultrasonic diagnostic device according to the present invention comprises: a measurement depth setting unit for setting the measurement depth intended to be measured; a voltage supply unit for supplying the voltage to be applied to a pulse generation unit depending on the set measurement depth, wherein the smaller the set measurement depth, the smaller the voltage supplied; and a pulse generation unit for generating the electrical pulse to be applied to an ultrasonic transducer in order to generate ultrasonic wave, wherein the generated electrical pulse is an electrical pulse of a voltage corresponding to the voltage supplied from the voltage supply unit.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting content items. In one aspect, a method includes identifying an opportunity to present a content item at a device and in a manner that precludes a user from accessing content of one or more applications executing on the device. Data relating to a status of each of the one or more applications are identified. A level of urgency for a user to access content of the one or more applications is determined based on the data. A response to the opportunity to present a content item is selected based on the level of urgency for the user to access content of the one or more applications. The response is selected from a first response that causes presentation of the content item and a second response that precludes presentation of the content item.

Abstract: According to an implementation, a system includes a social media messaging platform configured to exchange messages, over a network, among a plurality of computing devices. The exchange of messages is based on a connection graph stored on the messaging platform. The social media messaging platform includes a registration manager configured to register an account for an entity to boost a social media presence of the entity on the social media messaging platform, and a social media presence booster having a machine-learning relevance engine configured to programmatically match the entity's content with relevant entities. The social media presence booster is configured to automatically and programmatically boost the entity's content to the relevant entities, and increase, over time, a number of connections in the connection graph between the account and other accounts on the social media messaging platform in response to the boosted content.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting content items. In one aspect, a method includes identifying an opportunity to present a content item at a device and in a manner that precludes a user from accessing content of one or more applications executing on the device. Data relating to a status of each of the one or more applications are identified. A level of urgency for a user to access content of the one or more applications is determined based on the data. A response to the opportunity to present a content item is selected based on the level of urgency for the user to access content of the one or more applications. The response is selected from a first response that causes presentation of the content item and a second response that precludes presentation of the content item.

Abstract: Disclosed herein are a novel crown ether with bulky and rigid groups and a method for preparing the same. Also provided are a lithium adsorbent comprising the novel crown ether immobilized onto a nanofiber, and a method for preparing the same. The lithium-selective crown ether is synthesized through intermolecular cyclization between a bulky epoxide and a rigid aromatic compound such as 1,2-dihydroxybenzene, and can effectively recover lithium ions. For use as a lithium adsorbent, the novel crown ether with both bulky and rigid subunits is immobilized onto a polymer nanofiber. The crown ether-immobilized polymer nanofibers may be formed into a recyclable membrane.

Abstract: Disclosed are a composite nanofiber membrane for the adsorption of lithium, a method for preparing the same, and a lithium recovery apparatus and method using the same. The composite nanofiber membrane for the adsorption of lithium is immobilized with manganese oxide selectively adsorptive of lithium. The composite nanofiber membrane for lithium adsorption exhibits high selectivity for lithium ions and allows for the rapid and easy diffusion of lithium ions through interstitial spaces of the adsorbent. Particularly, the lithium recovery apparatus using the composite nanofiber membrane for lithium adsorption is able to effectively adsorb lithium ions dissolved in seawater in a selective manner within a short period of time, thus reducing the time taken for the adsorption process.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting content items. In one aspect, a method includes identifying an opportunity to present a content item at a device and in a manner that precludes a user from accessing content of one or more applications executing on the device. Data relating to a status of each of the one or more applications are identified. A level of urgency for a user to access content of the one or more applications is determined based on the data. A response to the opportunity to present a content item is selected based on the level of urgency for the user to access content of the one or more applications. The response is selected from a first response that causes presentation of the content item and a second response that precludes presentation of the content item.