Topic modelling

The purpose of topic modelling

🛠️ Under construction

Why topic identification is challenging for machines

The following three sentences are examples of text fragments that can make it difficult for machines to identify themes in a collection of texts:

"Garden plants need a lot of water."

"You have to boil water and cook the vegetables till tender."

"Growing vegetables in your graden can be difficult when there are slugs."

A human reader will immediately recognize that the first and third text focus on gardening while the second text is about cooking. However, just looking at the vocabulary used, there are several overlaps between all three texts. "Vegetables" is used both in text 2 and text 3, while "water" is used both in text 1 and text 3. So how does the machine know which is which?

🛠️ Under construction

Different topic models and use cases

🛠️ Under construction

Tool 1: Topic modelling in Voyant Tools

🛠️ Under construction

Tool 2: DARIAH-DE topis explorer

🛠️ Under construction