Forecasting the American presidential elections

The article that I will be talking about today is How the Economist presidential forecast works by G. Elliott Morris. I have always wanted to know more about how American Presidential forecasts work, and how reliable they are. This is my attempt to try and understand it. Note that the authors have developed a codeContinue reading “Forecasting the American presidential elections”

IMO 1988/Problem 6

I spent some time thinking about the infamous IMO 1988/Problem 6 today: For positive integers , if is an integer, prove that it is a square number. After some initial false starts, I came up with this: . We need to eliminate the , in order to have some hope of a quotient that isContinue reading “IMO 1988/Problem 6”

Social Capital: Networks and Connections

The paper that I want to review today is “Social Capital: Its Origins and Applications in Modern Sociology” by Alejandro Portes. I found this paper in the list of the most highly cited Sociology papers of the last century. This is the first paper that I’ve ever read in Sociology, and I found it toContinue reading “Social Capital: Networks and Connections”

The topology of data

The paper that I wish to discuss today is An Introduction to Topological Data Analysis: fundamental and practical aspects for data scientists, by Frederic Chazal and Bertrand Michel. Topological data analysis is an exciting new field, and this paper can be understood by people from a wide range of backgrounds. Notation: For this paper, denotesContinue reading “The topology of data”