06-3cHave you made an effort to recruit diverse reviewers for labeled data?
• There can be human biases despite having a diverse group of data labelers. To prevent such biases, recruit reviewers to examine whether the labeled data differ from the purpose of data collection and the data specifications, and perform duties like requesting edits.
• Ensure diversity and even distribution in the group of data labeling reviewers just like data labelers. Examine if crowdsourcing was implemented and conduct a survey and analysis of reviewers to make sure the group of reviewers is diverse and evenly organized.
• If labeling is performed by a non-expert in the healthcare sector, it is recommended that medical staff be present during the review process. In addition, it is essential to ensure that reviewers adhere to prescribed labeling guidelines in order to minimize errors and biases.
• Even when labeling is performed by healthcare professionals, medical staff may be required to review labels. This is due to the fact that identifying the location of cancer cells in an X-ray image and tracing the outlines of a tumor can yield differing results based on the expertise of the healthcare professional. Likewise, even when labeling is performed by healthcare professionals, human bias may occur; therefore, it is necessary to consider recruiting at least two or three labeling reviewers from healthcare professionals to conduct the review.