Abstract: A method and an apparatus for evaluating transmission impairments of a multiplexing converter. According to the method, impairments of a multiplexing converter are equivalent to the equivalent multiplicative noise and the equivalent additive noise, so as to allow evaluation of transmission impairments of the multiplexing converter, thereby to allow evaluation of the performance of a communication system. The multiplexing converter is a multiplexing analog-to-digital converter, or a multiplexing digital-to-analog converter. According to the present application, impairments of a multiplexing converter can be evaluated accurately, the performance evaluation of a communication system using the multiplexing converter is given, without being affected by an amplitude, a modulation format and a transmission rate of an input signal.

Abstract: A method and device for identifying an attribute word of an article are provided. The method includes: acquiring an article information of a to-be-identified article; performing word segmentation on the article information; identifying a word segmentation result based on a preset rule; determining a similarity of a first attribute word to each standard attribute word to determine whether the first attribute word is valid when the first attribute word is acquired; identifying the word segmentation result based on a sequence labeling model to acquire a second attribute word-when the first attribute word is invalid or when the first attribute word is not acquired; determining a similarity of each of the second attribute words to each standard attribute word; and determining a final attribute word of the to-be-identified article based on the similarity of each of the second attribute words.