The social sciences and digital humanities have recently adopted the machine learning technique of topic modeling to address research questions in their fields.This is problematic in a number of ways, some of which have not received much attention in the debate yet.This paper adds epistemological concerns centering around the interface between topi

This study tried optimization of design parameter of an ultra-thin flat plate dynamic speaker unit as an example of high flexibility of the products design.We derived the regression formula of the sound quality effect of each design parameter by the design of experiments and the multiple linear regression analysis, and Power Tools the evaluation cr

The work scientifically substantiates the use of an effective technology for increasing the wear resistance of Detergent cylindrical parts, using the example of protective sleeves of cantilever pumps, due to electromechanical surface hardening.A review of research was carried out and it was established that the achievement of the highest values of

Abstract In recent years, the widespread applications of open-source software (OSS) have brought great convenience for software developers.However, it is always facing unavoidable security risks, such as open-source code defects and security vulnerabilities.To find out the OSS risks in Evening Primrose time, we carry out an empirical study to ident