Lesson 9

Text Visualisation:

Methods and Applications

IS428 Visual Analytics for Business Intelligence

IS428 Visual Analytics for Business Intelligence

Content

  • Motivation
  • Introduction to Text Visualisation
  • Text Visualisation Methods
  • Text Visualisation Applications

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Introduction to Text Visualisation

  • History of Text

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Introduction to Text Visualisation

  • Text as historical archive

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisatio

Introduction to Text Visualisation

  • Text as a mode of communication.

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Introduction to Text Visualisation

  • Textual data are readily available from various media.

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Fundamental of Text Visualisation

  • Understanding – get the “gist” of a document

  • Grouping – cluster for overview or classification

  • Compare – compare document collections, or

  • Inspect evolution of collection over time

  • Correlate – compare patterns in text to those in other data, e.g., correlate with social network

Why visualising text?

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Fundamental of Text Visualisation

  • Lexical level, transforming a string of characters into a sequence of atomic entities, called tokens.

  • Syntactic level, identifying and tagging (anotating) each token’s functions.

  • Semantic level, extracting of meaning and relationships between pieces of knowledge derived from the structures identified in the syntactical level.

Levels of text representation

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Fundamental of Text Visualisation

Warning, not all text are written in English and in digital forms!

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Tag Cloud

  • A tag cloud (word cloud, or weighted list in visual design) is a visual representation for text data, typically used to depict keyword metadata (tags) on websites, or to visualize free form text.

  • 'Tags' are usually single words, normally listed alphabetically, and the importance of each tag is shown with font size or color.

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Tag Cloud

  • One-word tag cloud of DBS’s corporate values statement created using Many Eyes.

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Tag Cloud

  • Two-word tag cloud of DBS’s corporate values statement created using Many Eyes.

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Tag Cloud

  • Journey Back to Singapore by Chen Show Mao

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Tag Cloud

  • A blog tool or website analysis for search engine optimization

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Tag Cloud

  • Compress Yourself – Tag Cloud Your Resume

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Wordle

  • A toy for generating “word clouds” from text that you provide.

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Wordle

  • Word Clouds of Corporate Values Statements

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Wordle

  • Twitter Word Map for Android

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Wordle

  • D3.js way

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Parallel Tag Cloud

  • Exploring and Analysing faceted text corpora

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Bubble Cloud

  • D3.js way

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Bubble Cloud

  • Bubble cloud in the news

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Word Tree

  • A visual search tool for unstructured text, such as a book, article, speech or poem. It lets you pick a word or phrase and shows you all the different contexts in which the word or phrase appears.

  • The contexts are arranged in a tree-like branching structure to reveal recurrent themes and phrases.

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Phrase Net

  • A phrase net diagrams the relationships between different words used in a text.  It uses a simple form of pattern matching to provide multiple views of the concepts contained in a book, speech, or poem.

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Phrase Net

  • Words separate by the keyword "and"

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Methods

Phrase Net

  • Words that directly follow one another

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Applications

JIGSAW

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Applications

Story Tracker

  • Incremental visual text analytics of news story development

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Applications

Story Tracker

  • Incremental visual text analytics of news story development

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Applications

Story Tracker

  • The Zoomed Views

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Applications

Story Tracker

  • The User Interfaces

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Text Visualisation Applications

VOYANT

  • Web-based Text Visualisation and Analysis Systems

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Reference

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Reference

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Reference

IS428 Visual Analytics for Business Intelligence

Lesson 9: Text Visualisation

Reference

Made with Slides.com