Is there a way to highlight a span of text?

[rjalexander]

I need to build a frame which shows a text and for example changes the background of people mentioned in yellow and of places in green. Of course I have the text in a variable and a list of dictionaries with an entry for each span similar to {‘type’: 'person, ‘begin’: 46, ‘end’: 58} where the numbers describe the position in the text string variable.

Any ideas? Thanks a lot and love and happiness to all of Plotly’s community !

[AnnMarieW]

Hi @rjalexander

Have you checked out spaCy ?

spaCy natural language processing with Dash

spaCy is a popular natural language processing library that provides advanced features for tokenization, part-of-speech tagging, and dependency parsing. The spaCy docs on Visualizers shows how to use spaCy with Jupyter notebooks and other frameworks, but doesn’t show how easy it is to use with Dash. Here are the missing docs! If you create something cool - please post it in show-and-tell, or add your example here! Using spaCy natural language processing with Dash 1. Visualizing th…

[rjalexander]

Wow very interesting thanks a lot. As you have guessed my goal is named entity highlighting on an article text (persons, places and organizations).

I have around 150.000 documents which I have treated with Stanford’s Stanza NLP pipelines and the spans I was referring to are the result of its NER stage.

I wonder if I should be looking for a way to convert my spans to Spacy compatible format or wonder if I could somehow use the Stanza spans within Dash.

In the past I had written a small script to convert Stanza’s NER spans and display them in BRAT but have no frontend skills and therefore no clue as to how I could insert a BRAT like visualizazion in a Dash frame.

Thanks a lot

PS BRAT → brat rapid annotation tool