The Survey Today, we are releasing the report from a survey the University commissioned, showing that Columbia’s Jewish and Muslim students were significantly less comfortable on our campus than their ...

Visit our Data & Figures, Earth Institute and CSAS.org Websites. Sign up for my occasional Communications here. Recent Communications August 6, 2025: Seeing the Forest for the Trees {short version ...

It seems that this site is still working after Makiko Sato's retirement. (We don't know how long.) I updated several pages, but I will not do anymore. Please go to Data & Figures page on Dr. Hansen's ...

Research Interests How to live better--Financial Engineering How to live longer--Stochastic Models in Medicine How to enjoy myself--Applied Probability ...

During the Middle Ages there were all kinds of crazy ideas, such as that a piece of of rhinoceros horn would increase potency. Then a method was discovered for separating the ideas--which was to try ...

Sepulveda. Democrates Alter Bibliographic Information Democrates Alter, Or, on the Just Causes for War Against the Indians Juan Ginés De Sepulveda ...

I work in statistical machine learning, with an emphasis on common nonparametric methods (e.g., kNN, trees, kernel averaging). I’m particularly interested in adaptivity, i.e., how to automatically ...

The Columbia Task Force on Antisemitism was created to address the harmful impact of rising antisemitism on Columbia’s Jewish community and to ensure that protection, respect, and belonging extends to ...

Controversy preceded the founding of the College, with various groups competing to determine its location and religious affiliation. Advocates of New York City met with success on the first point, ...

The linear function is popular in economics. It is attractive because it is simple and easy to handle mathematically. It has many important applications. Linear functions are those whose graph is a ...

Mamadou Diouf is the Leitner Family Professor of African Studies and the Director of Columbia University's Institute for African Studies. He holds a Ph.D. from the University of Paris-Sorbonne. Before ...

Casting Teutonic Types "When the war started," actor-director Erich von Stroheim wrote in 1941, looking back on World War I, "the enemy, of course, became the arch-villains, and quite naturally their ...