Owen Li

Artificial Neural Networks

By Owen LiPosted on April 14, 2021Posted in UncategorizedNo Comments

The brain is arguably the most amazing thing on this planet. With our brains, humans have come up with some incredible inventions and created some amazing things. Even in the last century, the world has changed so much in such little time due to the development in computers and technology. But is it possible for […]

Dive into the world of Changepoints 📈

By Owen LiPosted on March 28, 2021Posted in StatisticsTagged changepoints, statisticsNo Comments

Image credit: https://techdaily.ca/ In this blog post, I will discuss a very popular area (particularly at Lancaster University) in statistics called Changepoints Analysis. Changepoint analysis has been an important field of study, with publications dating all the way back to the 1950’s. The applications of changepoint analysis can be found in many areas such as medicine and […]

Back to basics: A ‘New’ Way of Solving Quadratics

By Owen LiPosted on March 14, 2021Posted in Back-to-basicsTagged Back-to-basicsNo Comments

Happy π-day! To celebrate, let’s go all the way back to GCSE maths where we just little baby kids, most likely annoying (at least I was), learning about quadratic equations. Say we want to solve the following quadratic: Solving this just means we want to find the values of x which makes the entire equation equal […]

Network Flow 🌊

By Owen LiPosted on February 28, 2021Posted in Operational ResearchNo Comments

Everywhere we look, whether that’s in our social circles or at the electrical grid, we can see the existence of networks. In each network, we exchange or send some product from one point in the network to another point. This is what we define a flow network (or network flow) as, a collection of points on which […]

Extreme Value Theory: Looking for the unusual

By Owen LiPosted on February 14, 2021Posted in StatisticsNo Comments

Whether we’re famous statisticians or just regular people, we look towards the majority. We even have terms for this, like groupthink. Traditionally, statisticians take data and focus their analysis on the majority of the data. But what if we didn’t want to look at the majority? What if we wanted to focus on the extremes […]

Stochastic Optimisation 🤔🏭

By Owen LiPosted on January 28, 2021Posted in Operational ResearchTagged optimisation, stochastic, uncertaintyNo Comments

Introduction Welcome to my first official blog post! There are lots of interesting topics in statistics and operational research and it’s hard to pick one to talk about but I am going to start with uncertainty, particularly uncertainty in decision making. There’s one thing for certain: uncertainty is everywhere. Whether that’s deciding how fast a […]