Fault Diagnosis of Rotating Machinery Using Denoising-Integrated Sparse Autoencoder Based Health State Classification

The article is a defense of the retraction of Lawrence M. Mead's "Poverty and Culture " from the journal Society in 2020. Four reasons for retraction are adduced: the unreliable content; the faulty review process; the redundancy of the article in relation to previous articles by Mead; and the defamation of racial and national groups. The article discusses the ethics of retraction in general, arguing that retraction is an indispensable procedure for correcting errors and maintaining high academic standards. The article also seeks to allay the apprehension that retraction is contrary to the spirit of free speech. Since a statement of retraction is a form of discourse and an exercise of academic judgment by the editors, retraction is an instance, not a violation, of free speech.