摘要: 不久前 Google 發表的 Google Scholar(學術搜尋),方便查找論文。科學家、工程師或其他對數據有需求的人,這次也可以透過專門的搜尋引擎,更有效率找到關鍵資料。過去資訊散佈不同存放區,搜尋上有難度,如今 Google 建立起資料集搜尋引擎,雖然該應用程師仍在測試階段,但據 Google Dataset Search 的簡介表示,希望透過建立資料系統,鼓勵更多人使用科學家研究的心血發揮更大的影響力。
摘要:
The visualization shows a Bayesian two-sample t test, for simplicity the variance is assumed to be known. It illustrates both Bayesian estimation via the posterior distribution for the effect, and Bayesian hypothesis testing via Bayes factor. The frequentist p-value is also shown. The null hypothesis, H0 is that the effect δ = 0, and the alternative H1: δ ≠ 0, just like a two-tailed t test. You can use the sliders to vary the observed effect (Cohen's d), sample size (n per group) and the prior on δ.