Kalle Leppälä

The paper discusses f4-ratio estimation, highlighting its versatility due to the irrelevance of the root and introducing an improved branch statistic for detecting gene flow.

This paper introduces a new family of five-leaf admixture tests called {Delta}-statistics to better determine the directionality of admixture compared to existing methods like DFOIL.

The paper introduces a Bayesian MCMC method for inferring admixture graphs and applies it to Native American and Arctic populations, finding that the Koryak population, not Saqqaq, is the best proxy for gene flow into Athabascans.