Abstract: The present disclosure describes an artificial intelligence approach to digital content recommendation where the recommendation mechanics differ based on the amount of information available. In one aspect, a user is identified as an above-threshold user who has consumed at least a threshold number of digital artifacts or a below-threshold user who has consumed fewer digital artifacts and different recommendation engines are used for above-threshold users and below-threshold users. In another aspect, users are bifurcated into low-data users and high-data users. For high-data users, digital artifacts are directly selected, and for low-data users, digital artifacts are indirectly selected by first selecting a digital artifact property criteria and then selecting digital artifacts that satisfy the selected digital artifact property criteria.

Abstract: A method and apparatus for storing autonomous driving test data and an electronic device are provided. The method may include: acquiring a task type of a test task of an autonomous vehicle; receiving message data acquired in a test of the autonomous vehicle and corresponding to the task type, and writing the message data into a data queue; creating a log file corresponding to the task type, writing the message data corresponding to the task type in the data queue into the log file, and transferring the log file and a file name of the log file to the data queue; acquiring preset disk drop scenario information corresponding to the task type; and adding, according to the preset disk drop scenario information, an unclearable mark to the log file in the data queue having data acquisition time consistent with the time of triggering disk drop storage of data.

Abstract: In an embodiment, a method for preparing expanded hexagonal boron nitride comprises mixing a boron compound and a carbon template in an organic solvent; removing the organic solvent to provide a dried mixture of the boron compound and the carbon template; exposing the dried mixture to a nitrogen-containing gas under conditions effective to provide a crude product comprising hexagonal boron nitride; removing the carbon template from the crude product to provide the expanded hexagonal boron nitride.

Abstract: A method and apparatus for storing autonomous driving test data and an electronic device are provided. The method may include: acquiring a task type of a test task of an autonomous vehicle; receiving message data acquired in a test of the autonomous vehicle and corresponding to the task type, and writing the message data into a data queue; creating a log file corresponding to the task type, writing the message data corresponding to the task type in the data queue into the log file, and transferring the log file and a file name of the log file to the data queue; acquiring preset disk drop scenario information corresponding to the task type; and adding, according to the preset disk drop scenario information, an unclearable mark to the log file in the data queue having data acquisition time consistent with the time of triggering disk drop storage of data.

Abstract: Provided is a multifunctional chamber and a refrigerator. The chamber comprises a door body, an inner container enclosed by a plurality of plate bodies, at least one opening provided in at least one of the plurality of plate bodies, a moisture preserving module disposed at the opening and used for regulating and controlling the humidity of the chamber, an upper cover movably disposed on the moisture preserving module, and at least one air port provided in at least one of the plurality of plate bodies and used for discharging moisture from the chamber. When the chamber is at a high-humidity mode, the upper cover moves at the moisture preserving module to expose the moisture preserving module; and when the chamber is at drying mode, the upper cover completely covers the moisture preserving module.

Abstract: Provided is a multifunctional chamber and a refrigerator. The chamber comprises a door body, an inner container enclosed by a plurality of plate bodies, at least one opening provided in at least one of the plurality of plate bodies, a moisture preserving module disposed at the opening and used for regulating and controlling the humidity of the chamber, an upper cover movably disposed on the moisture preserving module, and at least one air port provided in at least one of the plurality of plate bodies and used for discharging moisture from the chamber. When the chamber is at a high-humidity mode, the upper cover moves at the moisture preserving module to expose the moisture preserving module; and when the chamber is at a drying mode, the upper cover completely covers the moisture preserving module.