Abstract: A ratchet structure is provided. The ratchet structure comprises a housing having at least one pair of racks slidably overlapped with each other. Further, a cover coupled to the housing, having a cavity. Further, a ratchet gear detachably secured within the cavity, and comprising a plurality of elastic ribs having one or more grooves. Further, a knob having a plurality of driving ribs configured to be received within the one or more grooves of the plurality of elastic ribs. Therefore, the plurality of driving ribs facilitates the movement of the plurality of elastic ribs of the ratchet gear to slide the at least one pair of racks.

Abstract: Provided is an energy storage power supply (100). The energy storage power supply (100) includes a first housing (10), a fixing colloid, at least one first cell (20). The first housing (10) has an accommodation chamber (11) defined inside the first housing (10). The accommodation chamber (11) is provided with a positioning portion (12) at a bottom of the accommodation chamber (11). The positioning portion (12) has a positioning groove (121). The at least one first cell (20) is partially accommodated in the positioning groove. The fixing colloid is located in the positioning groove (121) and fixedly connected to the at least one cell (20) and a side wall of the positioning groove (121).

Abstract: The present disclosure provides an energy storage power supply. The energy storage power supply includes a housing and a plurality of cells. The housing has an accommodation cavity defined therein. The accommodation cavity is provided with a plurality of first fixing members at an inner wall of the accommodation cavity. Each of the plurality of first fixing members has a first through hole defined at a bottom wall of the first fixing member. The plurality of cells corresponds to the plurality of first fixing members in one-to-one correspondence. Each of the plurality of cells includes a body, a first pole, and a second pole. The first pole and the second pole are respectively disposed at two ends of the body in a length direction of the body. One of the two ends of the body is accommodated in a corresponding one of the plurality of first fixing members.

Abstract: A device includes a housing, a tamper switch supported at the housing, and an actuation arm supported at the housing. The actuation arm includes an actuation column. The actuation arm is movable between a tamper switch engaged position and a tamper switch released position. In the tamper switch engaged position, the actuation column contacts the tamper switch and the actuation arm is at a first angle relative to the tamper switch. In the tamper switch released position, the actuation column is spaced apart from the tamper switch and the actuation arm is at a second angle relative to the tamper switch. The second angle is different than the first angle.

Abstract: A mounting bracket comprising: a mount for attaching to an object to be supported, said mount comprising a ball-shape end portion having a first diameter; a clamping assembly, comprising: a body defining a bore extending through the body, said bore being configured for accommodating at least the ball-shape end portion of the mount, and a neck at or near one end of the bore, the neck defining a smaller opening than the first diameter to retain the ball-shape end portion within the body; a clamping support located within the bore of the clamping housing, comprising a seat portion adapted to engage the ball-shape end portion of the mount, and a clamping mechanism operable to force the clamping support against the ball shaped end portion so as to clamp the ball-shape end portion between the seat portion and the neck of the body.

Abstract: A protection cup for a hearing protection device (HPD) is provided. The protection cup includes a plurality of fractal elements disposed on an inner surface of the protection cup.

Abstract: A protection cup (100) for a hearing protection device (HPD) and a method for manufacturing a protection cup (100). The protection cup (100) includes a plurality of fractal elements disposed on an inner surface (101) of the protection cup (100).

Abstract: A coated building article comprising a fiber cement cladding element may be coated with a system designed to achieve a desired appearance. The coating system may comprise a first coating layer and a second coating layer wherein the second coating layer comprises at least one layer of a low gloss coating composition which has a light reflectance of 5% or less when light is shone onto the surface of the coated article at an angle of 60° or 85° to the surface is positioned on at least a portion of the front face of the fiber cement cladding element. Also provided is a method of coating the building article with a low gloss coating composition.

Abstract: An insert for a connector is provided having: an insert housing, wherein a cavity of the insert housing has multiple connection-accommodating holes for accommodating multiple connections, and wherein the multiple connections comprise at least one protective grounding connection; a holding plate, which is attached to a connection side of the insert housing in order to hold the multiple connections in the cavity; and a protective grounding plate, which serves for electrical contact with the protective grounding connection. The insert can accommodate more connections, whereby a high-density connector is provided, wherein power connections and protective grounding connections of the same type can be used in order for quick assembly and disassembly to be realized, whereby it is also possible for customers to replace the connections according to actual use.

Abstract: An assembly includes a premise security device, a mounting bracket, a first electrical cable, and a second electrical cable. The first electrical cable has a first electrical cable first end, connected to the premise security device controller, and a first electrical cable second end. The second electrical cable has a second electrical cable first end, electrically connected to the premise security device controller, and a second electrical cable second end. When the premise security device housing is coupled to the second mounting bracket portion, the second electrical cable second end is electrically connected to the first electrical cable second end to form an electrical circuit between the premise security device controller and the electrically connected electrical cable second ends. The premise security device controller is configured to monitor the presence of the electrical circuit and generate a tamper signal when the electrical circuit is no longer present.

Abstract: Embodiments described herein provide systems and methods for training a sequential recommendation model. Methods include determining a difficulty and quality (DQ) score associated with user behavior sequences from a training dataset. User behavior sequences are sampled during training based on their DQ scores. A meta-extrapolator may also be trained based on user behavior sequences sampled according to DQ score. The meta-extrapolator may be trained with high quality low difficulty sequences. The meta-extrapolator may then be used with an input of high quality high difficulty sequences to generate synthetic user behavior sequences. The synthetic user behavior sequences may be used to augment the training dataset to fine-tune the sequential recommendation model, while continuing to sample user behavior sequences based on DQ score. As the DQ score is based on current model predictions, DQ scores iteratively update during the training process.

Abstract: Embodiments described herein provide a cascade-guided adversarial training method for sequential recommendation models. A system may compute cascade scores for items in a user interaction sequence. The cascade scores may be based on the position in the sequence, as well as the appearance of the same item in other sequences. Based on the computed cascade score, the system may perturb item embeddings. The perturbed user interaction sequences with perturbed item embeddings may be used to train a sequential recommendation model.

Abstract: An insert for a connector, said insert is provided having: an insert housing, a cavity of the insert housing having a plurality of connection accommodating holes for accommodating a plurality of connections, and the plurality of connections comprising at least one protective earthing connection; and a protective earthing plate which is attached to the outer surface of the insert housing in order to electrically contact the protective earthing connection. The insert can accommodate more connections, thereby providing a high-density connector; moreover, it is possible to use power connections and protective earthing connections of the same type in order to allow for quick assembly and disassembly, and customers can replace the connections according to actual use.

Abstract: Embodiments described herein provide a universal item learning framework that generates universal item embeddings for zero-shot items. Specifically, the universal item learning framework performs generic features extraction of items and product knowledge characterization based on a product knowledge graph (PKG) to generate embeddings of input items. A pretrained language model (PLM) may be adopted to extract features from generic item side information, such as titles, descriptions, etc., of an item. A PKG may be constructed to represent recommendation-oriented knowledge, which comprise a plurality of nodes representing items and a plurality of edges connecting nodes represent different relations between items. As those relations in PKG are usually retrieved from user-item interactions, the PKG adapts the universal representation for recommendation with knowledge of user-item interactions.

Abstract: An object tracking method includes: obtaining a video stream acquired by a camera, and decoding the video stream to obtain a plurality of image frames; and obtaining position information of a target object in a current image frame. Obtaining the position information of the target object in the current image frame includes: performing, in response to that the current image frame is a first-type image, object detection on the current image frame to obtain the position information of the target object in the current image frame; and predicting, in response to that the current image frame is a second-type image, the position information of the target object in the current image frame based on motion vectors of a previous image frame and a position the target object in the previous image frame.

Abstract: Embodiments described herein provide methods and systems for training a sequential recommendation model. A system receives a plurality of user behavior sequences, and encodes those sequences into a plurality of user interest representations. The system predicts a next item using a sequential recommendation model, producing a probability distribution over a set of items. The next interacted item in a sequence is selected as a positive sample, and a negative sample is selected based on the generated probability distribution. The positive and negative samples are used to compute a contrastive loss and update the sequential recommendation model.

Abstract: The present invention provides a method for preparing an additive-free cell-wall-broken granule of a Chinese medicinal material. The cell-wall-broken granule is obtained by medicinal material concocting and grinding, first cell-wall-breaking and grinding, screening, second wall-breaking and grinding, mixing, pelleting, and granulating and sieving. The obtained granule has a moderate tightness, a relatively rapid dissolution and diffusion and a good uniformity, overcoming problems of a difficulty of dissolution and diffusion and a poor uniformity of the existing cell-wall-broken granules.

Abstract: Embodiments described herein provide an attentive network framework that models dynamic attributes with item and feature interactions. Specifically, the attentive network framework first encodes basket item sequences and dynamic attribute sequences with time-aware padding and time/month encoding to capture the seasonal patterns (e.g. in app recommendation, outdoor activities apps are more suitable for summer time while indoor activity apps are better for winter). Then the attentive network framework applies time-level attention modules on basket items' sequences and dynamic user attributes' sequences to capture basket items to basket items and attributes to attributes temporal sequential patterns. After that, an intra-basket attentive module is used on items in each basket to capture the correlation information among items.

Abstract: Embodiments described herein provides an intent prototypical contrastive learning framework that leverages intent similarities between users with different behavior sequences. Specifically, user behavior sequences are encoded into a plurality of user interest representations. The user interest representations are clustered into a plurality of clusters based on mutual distances among the user interest representations in a representation space. Intention prototypes are determined based on centroids of the clusters. A set of augmented views for user behavior sequences are created and encoded into a set of view representations. A contrastive loss is determined based on the set of augmented views and the plurality of intention prototypes. Model parameters are updated based at least in part on the contrastive loss.

Abstract: A method for providing a neural network system includes performing contrastive learning to the neural network system to generate a trained neural network system. The performing the contrastive learning includes performing first model augmentation to a first encoder of the neural network system to generate a first embedding of a sample, performing second model augmentation to the first encoder to generate a second embedding of the sample, and optimizing the first encoder using a contrastive loss based on the first embedding and the second embedding. The trained neural network system is provided to perform a task.