Feature-pivot algorithms: a brief introduction

In my previous post, I took a look at document-pivot methods in Topic Detection and Tracking. Document-pivot approaches use clustering to find out what people are talking about, but that’s not the only solution. In this post, I take a look at feature-pivot methods, the second type of Topic Detection and Tracking methods. Instead of looking at what people are talking about, these approaches look at how people are talking to detect that something happened....

August 6, 2020

Document-pivot algorithms: a brief introduction

Topic Detection and Tracking has been around for more than 20 years, but during this time, there has been a lot of research. When researchers started creating systems, they went off in a few different directions. Earlier, I took a brief look at Topic Detection and Tracking. In this post I take a look at one of the two main approaches to solving the problem: document-pivot methods. Picture this: you’re out and about when you hear someone say the phrase “free hamburger....

July 27, 2020

Event tracking: a brief introduction

Topic Detection and Tracking is not an old research area. It was ‘only’ established in the late 90’s and it didn’t really pick up until a few years later. However, a lot has happened since then and today’s research is almost unrecognizable from back then. In this post, I take a brief look at what Topic Detection and Tracking is and at its history. What’s Topic Detection and Tracking? First things first: what is Topic Detection and Tracking or, less formally, event tracking?...

July 18, 2020

About events

Events have been a big part of my life since 2016. My name is Nicholas Mamo and I’m a doctoral student at the University of Malta. 2016 is the year when I started working on my undergraduate dissertation and the subject was events. More specifically, the research area I chose for my undergraduate dissertation was Topic Detection and Tracking: a subset of Artificial Intelligence that builds timelines for events. That sounds simple, but it’s not....

July 16, 2020