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Stylometric Evolution

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by

Jan Rybicki

on 13 December 2017

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Transcript of Stylometric Evolution

1000 English novels
1700s
1950s
2000s
Stylometric Evolution
in 878 books by 24 authors in 10 languages
(in 45 minutes)

Jan Rybicki, Jagiellonian University
1800s
1850s
1900s
Usually,
this procedure
puts together texts by the same authors, but traces of other "signals" are also visible: genre, theme, or
TIME
...even though two risky assumptions have to be made:
language is a "bag of words",
word frequencies are independent of each other.


To conclude:
Most au
thors exhibit stylometric e
v
olution

It may
be almost linear (Galdós, J
ames)
Or
slightly circular
(Conrad, Z
ola)
Other factors are
visible: chronology,
genre,
co-authorship.
Shakespeare
Molière
Edgeworth
Balzac
Dumas
et al.
Auerbach
Dickens
Kraszewski
Trollope
Fontane
Jókai
Barrili
Zola
Galdós
James
Sienkiewicz
Conrad
Wharton
Sōseki
Montgomery
Christie
Nabokov
Набоков
le Carré
Couperus
It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife. However…

I wish either my father or my mother, or indeed both of them, as they were in duty both equally bound to it, had minded what they were about when they begot me…

'NOW, what I want is, Facts. Teach these boys and girls nothing but Facts. Facts alone are wanted in life. Plant nothing else, and root out everything else…

I have just returned from a visit to my landlord - the solitary neighbour that I shall be troubled with. This is certainly a beautiful country!...

Dear Father and Mother,
I have great trouble, and some comfort, to acquaint you with. The trouble is, that my good lady died of the illness I mentioned to you, and left us all much grieved for the loss of her...
Bag of texts, bag of words
Word frequencies
Burrows’s Delta
A lot of Deltas
Deltas, cluster-analyzed
In a set of texts by several authors, we can group the texts by their authors by comparing frequencies of 50, 100, 500...
most frequent words.
Let's face it...
Looking at title pages works too.
What is it that we see?
Lingui
stic change over
time?
Personal
evolution in individu
al authors?
Both?
Full transcript