Abstract: Systems and methods are presented to provide a first machine learning model to a collaboration platform. The systems and methods receive a second machine learning model from the collaboration platform that indicates the second machine learning model is based on the first machine learning model. The systems and methods test the second machine learning model using criteria corresponding to the first machine learning model to determine whether the second machine learning model is valid. In turn, the systems and methods publish the second machine learning model to a repository in response to determining that the second machine learning model is valid.

Abstract: The present disclosure provides a machine learning-based method for measuring bending stiffness of a fabric, comprising: obtaining an image of a fabric to be tested placed on a three-dimensional geometric object; and determining the bending stiffness of the fabric to be tested by inputting the image of the fabric to be tested into a trained deep neural network.

Abstract: Parallel computation methods and systems for multiplying symmetric matrices with vectors are provided. The method may include acquiring a symmetric matrix and a vector; determining a count of a plurality of threads; dividing the symmetric matrix into a symmetric axis region, an upper triangular region, and a lower triangular region; obtaining symmetric axis data by determining a product of the symmetric axis region and the vector; dividing the upper triangular region or the lower triangular region into one or more subregions; for each of the one or more subregions, determining one or more candidate axes parallel to the symmetric axis, and for each of the one or more candidate axes, obtaining two sets of data or four sets of data by performing two multiplication operations on the candidate axis; and obtaining a result of multiplying the symmetric matrix with the vector.

Abstract: The present disclosure relates to the technical field of use of flexible light-emitting filaments in outdoor solar lamps, and in particular to, a solar magnetic suction linear lamp, including a locating structure, wherein the locating structure includes a lamp frame; a transparent lampshade is arranged in an inner cavity of the lamp frame; and a lighting structure is arranged in the inner cavity of the lamp frame. After a light bar is turned on, a lamp base is plugged into the lamp frame; a steel locating head extends into the transparent lampshade; the steel locating head is sucked through a strong magnet and is located through the magnetism of the strong magnet; the light bar is pulled through the steel locating head; a mounting plate and the lamp base are located through the light bar.

Abstract: A catalyst and a method for preparing S-indoxacarb using the catalyst. The catalyst is prepared using 3-tert-butyl-5-(chloromethyl)salicylaldehyde and cyclohexanediamine as raw materials, where an original quinine catalyst such as cinchonine is replaced with the catalyst for application in the asymmetric synthesis of tert-butyl hydroperoxide and 5-chloro-2-methoxycarbonyl-1-indanone ester, greatly improving selection in the asymmetric synthesis process, with the S-enantiomer content increasing from 75% to over 98%, achieving the recycling of a high-efficiency chiral catalyst, and greatly reducing production costs. The synthesis process of the catalyst is simple and is favorable for industrialization, and lays good foundations for the production of high-quality indoxacarb.

Abstract: A catalyst and a method for preparing S-indoxacarb using the catalyst. The catalyst is prepared using 3-tert-butyl-5-(chloromethyl)salicylaldehyde and cyclohexanediamine as raw materials, where an original quinine catalyst such as cinchonine is replaced with the catalyst for application in the asymmetric synthesis of tert-butyl hydroperoxide and 5-chloro-2-methoxycarbonyl-1-indanone ester, greatly improving selection in the asymmetric synthesis process, with the S-enantiomer content increasing from 75% to over 98%, achieving the recycling of a high-efficiency chiral catalyst, and greatly reducing production costs. The synthesis process of the catalyst is simple and is favorable for industrialization, and lays good foundations for the production of high-quality indoxacarb.