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Text and Document - Coggle Diagram
Text and Document
Task = convey contents and topics
Word count
Tag/Word clouds (e.g. product tags)
Wordle: tightly packed words, size = frequency
problem
hard to find
long words get more emphasis
hard to compare font sizes
popular
fun
bad for queries
Challenge
text is nominal
raw data -> data table mapping is difficult
World Tree
shows context of words
but have to select one to start
Document Overview representations
show frequency
Word concordance
index of principal words with context
Analytic metrics
average word/sentence length
Example document visualization system
Themail: show monthly yearly words
TFIDF
term frequency, inverse document frequency
-> compare similarity of two documents
SentenTree
combine word clouds and word trees
Book
TextArc
Text + Time
themeriver
SeeSoft
taping text to the wall and walking far away
vector space
how many times a important word appears
Goals for visualizing document collectios
Jigsaw visual analytics system
vector space document analysis (similarity calculation)