Abstract: A method for providing document category recommendations may include training a machine learning algorithm; receiving, from a user, a selection of an anchor document; retrieving a user co-viewing sequence; generating, via the trained machine learning algorithm, a sequence embeddings set based on the anchor document and the user co-viewing sequence; comparing the generated embeddings set to respective embeddings for a plurality of candidate sets; determining the candidate set closest to the generated embeddings; and presenting at least one category from the closest candidate set.

Abstract: The present disclosure provides an earphone. The earphone includes a sound generation portion including a first housing, a second housing, and a speaker assembly. The speaker assembly includes an annular support assembly and two sets of vibration assemblies. The two sets of vibration assemblies respectively include protrusion portions protruding beyond the annular support assembly along an axial direction and arranged opposite to each other. The speaker assembly cooperates with the first housing and the second housing to form two first acoustic cavities around two protrusion portions. The annular support assembly has a middle dividing plane perpendicular to the axial direction, and the first housing is provided with two pressure relief holes spaced apart from each other on two sides of the middle dividing plane and respectively connect the corresponding first acoustic cavities with an external environment.

Abstract: The present disclosure relates to an earphone, including: a sound-generating portion; an abutment portion; and an ear hook. The ear hook includes an elastic metal member. In a reference cross-section along a length direction of the ear hook and in a natural state of the earphone, the elastic metal member includes an elastic segment. The elastic segment is divided into a first sub-elastic segment and a second sub-elastic segment that are arranged in an arc shape and connected to each other. A curvature radius of at least a portion of the first sub-elastic segment starting from the connection point and a curvature radius of at least a portion of the second sub-elastic segment starting from the connection point gradually increase. A length of the first sub-elastic segment is greater than a length of the second sub-elastic segment.

Abstract: A wearing assembly and an earphone are disclosed. The wearing assembly includes a headband assembly including: a clamping member arranged in a curved shape along a length direction of the clamping member, the headband assembly is wound at a periphery of a user's head in a wearing state and provides a clamping force; an elastic covering body covering the clamping member; an elastic abutment portion; and a connection portion.

Abstract: A clip-on earphone is provided, including a sound production portion, an abutment portion, and an ear hook connecting the sound production portion and the abutment portion. The ear hook has an ear hook symmetry plane along a length direction thereof, when the clip-on earphone is in a natural state, on the ear hook symmetry plane, the clip-on earphone has a reference tangent, a contour line of the sound production portion and a contour line of the abutment portion are respectively tangent to the reference tangent. The contour line of the sound production portion and the contour line of the abutment portion are located on a same side of the reference tangent. An inner contour line of the ear hook has a first reference point farthest from the reference tangent, and a reference perpendicular drawn from the first reference point to the reference tangent passes through the abutment portion.

Abstract: A wearing assembly and an earphone are disclosed. The wearing assembly includes a headband assembly including: a clamping member arranged in a curved shape along a length direction of the clamping member, the headband assembly is wound at a periphery of a user's head in a wearing state and provides a clamping force; an elastic covering body covering the clamping member; an elastic abutment portion; and a connection portion.

Abstract: The present disclosure relates to an earphone. The earphone includes a sound-generating portion, an abutment portion, and an ear hook. The ear hook connects the sound-generating portion and the abutment portion. In a reference cross-section along a length direction of the ear hook and in a natural state, a midpoint of a shortest connecting line between an outer wall surface of the sound-generating portion and an outer wall surface of the abutment portion serves as a first reference point, or a midpoint of an arc formed by a contact region between the outer wall surface of the sound-generating portion and the outer wall surface of the abutment portion serves as the first reference point. The ear hook, the sound-generating portion, and the abutment portion define an inner contour. The inner contour includes a second reference point farthest from the first reference point.

Abstract: A wearing assembly and an earphone are disclosed. The wearing assembly includes a headband assembly including: a clamping member arranged in a curved shape along a length direction of the clamping member, the headband assembly is wound at a periphery of a user's head in a wearing state and provides a clamping force; an elastic covering body covering the clamping member; an elastic abutment portion; and a connection portion.

Abstract: Provided is an earphone. The earphone includes a sound-producing portion, an abutting portion, and an ear hook. The abutting portion includes two first microphones, the two first microphones are configured to collect a first sound respectively. The sound-producing portion includes a second microphone, and the second microphone is configured to collect a second sound. The earphone further includes a detection element and a processing circuit. The detection element is configured to detect a relative positional relationship between the two first microphones in a wearing state. The processing circuit controls one first microphone relatively higher in a gravity direction to be in an operating state and controls other one first microphone relatively lower in the gravity direction to be in a non-operating state according to a detection result of the detection element, and further performs noise reduction processing based on the first sound and the second sound.

Abstract: The present disclosure provides an earphone including a sound generating unit, an abutment unit, and an ear hook. The ear hook has a symmetry plane along a length direction of the ear hook. The abutment unit includes a first housing and a first microphone. The sound generating unit includes a second housing and a second microphone. The earphone further includes a processing circuit configured to perform noise reduction processing based on a first sound and a second sound. The earphone further includes a first reference plane located below the symmetry plane and parallel to the symmetry plane in a wearing state. A distance from the first reference plane to the symmetry plane is less than or equal to 5 mm. A first sound inlet includes a sound inlet end located on an outer wall surface of the first housing.

Abstract: An earphone is provided. The earphone includes a sound generating component, an abutting component, and an ear hook. The ear hook connects the sound generating component and the abutting component. The ear hook provides an elastic force between the sound generating component and the abutting component, such that the sound generating component and the abutting component have a clamping force for clamping on two sides of an auricle in a wearing state. The ear hook is configured such that, in a natural state, the sound generating component and the abutting component abut against each other to form a preload force.