Prática AWS Certified AI Practitioner
A team wants to group customers into segments based on purchasing behavior, without any predefined segment labels, so they can discover natural groupings in the data. Which technique best fits this goal?
Dois hábitos antes da primeira questão
- EVIDENCE-BACKEDAnswer from memory first, then check. It feels harder than rereading, and it works better. (Roediger and Karpicke, 2006 and others)
- EVIDENCE-BACKEDSet the confidence slider before you check. Your rating on each question shows where you feel sure and are wrong. (Couchman et al., 2016)
Por que funciona
EVIDENCE-BACKED Pelo menos um estudo revisado por pares ou uma fonte oficial encontrou o efeito ou afirma o fato. Um estudo pode ser pequeno.
Tested students kept more at two days and one week than students who restudied, and the result held in a randomized trial with medical residents at six months.
Per-question confidence predicted real exam performance far better than post-exam feelings.
Fontes
- Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249-255. doi.org/10.1111/j.1467-9280.2006.01693.x
- Yang, C., Luo, L., Vadillo, M. A., Yu, R., & Shanks, D. R. (2021). Testing (quizzing) boosts classroom learning: A systematic and meta-analytic review. Psychological Bulletin, 147(4), 399-435. doi.org/10.1037/bul0000309
- Larsen, D. P., Butler, A. C., & Roediger, H. L., III. (2009). Repeated testing improves long-term retention relative to repeated study: A randomised controlled trial. Medical Education, 43(12), 1174-1181. doi.org/10.1111/j.1365-2923.2009.03518.x
- Couchman, J. J., Miller, N. E., Zmuda, S. J., Feather, K., & Schwartzmeyer, T. (2016). The instinct fallacy: The metacognition of answering and revising during college exams. Metacognition and Learning, 11(2), 171-185. doi.org/10.1007/s11409-015-9140-8
As questões estão em inglês, como na prova. A prática e os simulados cronometrados são grátis, com certo ou errado em cada resposta e sua nota total.
Oferecido em: árabe, inglês, francês, japonês, coreano, português, espanhol e chinês.
Órgão: AWS · Lido: · Fonte: AWS Certified AI Practitioner