2 papers
math.ST2024
The piranha problem: Large effects swimming in a small pond
Christopher Tosh, Philip Greengard, Ben Goodrich +3
In some scientific fields, it is common to have certain variables of interest that are of particular importance and for which there are many studies indicating a relationship with…
cs.LG2024
Simple and near-optimal algorithms for hidden stratification and multi-group learning
Christopher Tosh, Daniel Hsu
Multi-group agnostic learning is a formal learning criterion that is concerned with the conditional risks of predictors within subgroups of a population. The criterion addresses re…