Abstract: A skin care device according to an embodiment includes a main body and a head part connected to the main body, wherein the head part includes a housing in which an upper portion thereof is open, and including an accommodation space therein, an electrode part disposed in the housing, a plurality of light emitting elements disposed in the housing and spaced apart from the electrode part, and a cover part for shielding of the open upper region of the housing, wherein the cover part includes a hole corresponding to the electrode part, a part of the electrode part protrudes from an upper surface of the cover part via the hole, and an upper surface of the electrode part facing a skin of a user includes a convex curved surface toward the skin.

Abstract: Provided is a method for classifying a cyber-attack performed in a computing device having an artificial neural network. The method comprises obtaining a plurality of features extracted from collected packets and inputting the plurality of features into the artificial neural network and using data output from the artificial neural network to determine a type of cyber-attack indicated by the collected packet.

Abstract: A camera module includes: a magnet disposed on a lens module; a bearing member disposed in a ball guide portion formed between the lens module and a housing that accommodates the lens module; a coil disposed in the housing to face the magnet; and a yoke member disposed on the housing to interact with the magnet to generate a biased magnetic force.

Abstract: Provided are a method for detecting an anomaly in devices, the method being performed by a computing device and comprising: acquiring operation information on a first device connected to a security management unit (SMU) of a first domain, and operation information on a second device connected to a SMU of a second domain, and detecting an anomaly in the first device and/or the second device by comparing the operation information on the first device with the operation information on the second device, wherein the SMU of the first domain is not directly connected to the SMU of the second domain.

Abstract: There is provided a method of generating malicious traffic, the method being performed by a computing apparatus and comprising obtaining traffic data transmitted from a first device infected with first malicious code or received by the first device, generating a traffic template of the first device by analyzing the traffic data, and generating a malicious traffic template of a terminal group, wherein the malicious traffic template of the terminal group comprises the traffic template of the first device.

Abstract: A camera module includes a housing accommodating a lens module, and an aperture module coupled to an upper portion of the lens module. The aperture module includes a plurality of plates having an incident hole configured to change an amount of light incident on the lens module. At least one of the plurality of plates is configured to be driven by an interaction between a driving magnet provided in the aperture module and a driving coil provided on the housing opposing the driving magnet in a first direction substantially perpendicular to an optical axis direction.

Abstract: There is provided a reinforcement learning method in which a discount factor is automatically adjusted, the method being executed by a computing device and comprising repeatedly training a reinforcement learning model, which determines an evaluation result of input data, using the input data, wherein the repeatedly training of the reinforcement learning model comprises obtaining first result data which is output as a result of inputting the input data to the reinforcement learning model. obtaining second result data which is the result of evaluating the input data using a first evaluation model. obtaining a first return which is the result of adding a discount factor to a first reward given in consideration of whether the first result data and the second result data match. training the reinforcement learning model using the first return and automatically adjusting the discount factor by considering the second result data.

Abstract: A camera module includes: a housing accommodating a lens module; a stop module coupled to a top of the lens module, and including a base including a protrusion fixed to the top of the lens module and extending in a direction of an optical axis of the camera module along an outer side of the lens module, plates disposed on the base and having incident holes configured to change an amount of light incident to the lens module, and a magnet portion movable in a direction perpendicular to the direction of the optical axis with respect to the protrusion and including a driving magnet; and a coil disposed in the housing and configured to interact with the driving magnet to drive the stop module.

Abstract: A camera module includes a housing accommodating a lens module, and an aperture module coupled to an upper portion of the lens module. The aperture module includes a plurality of plates having an incident hole configured to change an amount of light incident on the lens module. At least one of the plurality of plates is configured to be driven by an interaction between a driving magnet provided in the aperture module and a driving coil provided on the housing opposing the driving magnet in a first direction substantially perpendicular to an optical axis direction.

Abstract: A camera module includes: a housing accommodating a lens module; a stop module coupled to a top of the lens module, and including a base including a protrusion fixed to the top of the lens module and extending in a direction of an optical axis of the camera module along an outer side of the lens module, plates disposed on the base and having incident holes configured to change an amount of light incident to the lens module, and a magnet portion movable in a direction perpendicular to the direction of the optical axis with respect to the protrusion and including a driving magnet; and a coil disposed in the housing and configured to interact with the driving magnet to drive the stop module.

Abstract: A brush for a vibration motor is disclosed. A brush in contact with a flat commutator for supplying a current, comprises a plurality of arms in contact with the flat commutator in substantially the same plane, and a support portion, which forms an electrical connection with a current source, for supplying a current to the arms and for securing and supporting the brush, where the support portion comprises a through hole of a designated size configured to allow an inflow of solder. Since the inflow of solder through the through hole secures the brush, whereby the adhesion between the brush and the flexible board may be enhanced.