Logic and Modelling – Splitting

Splitting a formula is not like splitting an atom, haha :)

Splitting a formula is a way of checking the satisfiability of a propositional formula – or a set of formulas. The way we do this is by considering the truth values for Boolean variables occurring in the given formula, and then simplifying the formula depending on these values.
From these simplifications, we may even discover that we don’t always need to find the truth values for all Boolean variables in the formula.

Algorithms – Trees

So what exactly is a Tree in programming?

Well, it is not a tree that you see every day when you walk through a park :P

Financial Reporting - (More) Financial Statement Analysis

More Financial Statement Analysis

Let's start with some recapping from the last section.

• Let's say that a company's average debtor payback time in 2008 was 62 days, and in 2009 was 31 days. A possible reason for this is that the company has improved their credit control procedures, meaning they now collect their debts more quickly.

Financial Reporting - Financial Statement Analysis

Financial Statement Analysis

Who is interested in analysing a financial statement?

Machine Learning – Confusion Matrix

So what happens if our dataset only consists of 5 Cats but 95 Dogs? Well chances are you’ll get a 95% by just predicting everything as a Dog! So this means that you predicted 5 Cats as Dogs.
So what happens when we predict a Cat as a Dog and vice versa? Well chances are we won’t to know what's been predicted as what! This is where a Confusion Matrix comes in! :)

Machine Learning – Training and Testing

Splitting the Dataset

Hmm… Ah… Looking back at the graphs we used for the Cats and Dogs; I've just realised something, they have no units ^_^

Ah well, that’s about to change, haha!

Financial Reporting - Cash Flow Statement

Cash Flow Statement

What's the difference between cash and profit? Ok yeah, you know the answer, but could you actually say it in an exam question type way?