roget’s thesaurus conceptual hierarchy
DESCRIPTION
Hierarchy. Sense Index. Roget’s Thesaurus Conceptual Hierarchy. Class Roman sub-class (R-Class) Letter sub-class (L-Class) Category [POS]: Paragraph Sense: {Entry, entry, entry, ... [Crossref]}. ( Word Index ). Under the Hierarchy: words are polysemous. - PowerPoint PPT PresentationTRANSCRIPT
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Class
Roman sub-class (R-Class)
Letter sub-class (L-Class)
Category
[POS]: Paragraph
Sense: {Entry, entry, entry, ...
[Crossref]}
Roget’s Thesaurus Conceptual Hierarchy
Hierarchy
Sense Index(Word Index)
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Under the Hierarchy: words are polysemous
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40. Addition NOUNS 1.
…
ADVS. 10. and also, additionally, in addition, and all [coll.], yet, extra, on the side [slang], moreover, farther, further, furthermore, overplus, again, more, similarly, likewise, by the same sign, by the same token, item, also, then, to boot, and so, as well, too, else, au reste [F.], besides, plus, into the bargain, past, on top of, over, above, over and above, at that [coll.], beyond, beside; ...
PREPS. etc. 11 with, including ...
Sense Index CATEGORY
SENSE
PARAGRAPH
ENTRY=40:10:1-over
Index word
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Word Index
over verbs…advs. additionally 40:10
throughout 56.18...
preps. concerning 9.12 exceeding 36.20 ...
on 227.40 ...
OVER AGAINST
…
overabound...
Index word
PARAGRAPH
WORD
CATEGORY
ENTRY=40:10:1-over
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Word-Sense Relation
over above beyond across pastin excess
additionally …
9:12:1 x x206:24:2 x x x x206:27:4 x x x x x227:40:1 x x40:10:1 X x x x x x x… x x x
Polysemy
SynonymyWORDS
SE
NS
ES
ENTRY=40:10:1-over
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Senses (8) and synonyms (49) of ”agitate”
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Genus and Differentiae
A tiger is a big cat with stripes. An owl is a bird with large eyes.
One sense of Over
36:13:1 Superior; (is a)
major, upper, superior, over, higher, greater, above, better
Local Neighbourhood – one sense of a word
• Genus – synonym found in more than one sense of word
• Differentia – synonym found in only one sense of word
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Word-Sense Context (FCA)
Genus Sense Differentiat-ing Sense 2
Differentiat-ing Sense 1
Genus WordX X X
Differentiat-ing Word 1 X X
Differentiat-ing Word 2 X X
FCA: Formal Concept Analysis
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{Sense 1, Genus Sense}
{Genus Word, Word 1}
{Genus Word}
{Genus Word, Word 2}
{Genus Sense}
{Word 1, Word 2, Genus Word}
{Sense 2, Genus Sense}
{Sense 1, Sense 2, Genus Sense}
Lattice of all Objects and Attributes
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Differentiating Sense 1
Differentiating Word 1 Differentiating Word 2
Genus Word
Genus Sense
Differentiating Sense 2
Genus and Differentiae Only
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Teeth
Animal
Example
•Differentia
•Genus
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Senses & Synonyms of ”agitate”Showing genus and differentiae
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Grading of differentiae
NOTE UNLABELLED CONCEPTS
High differentiation
Low differentiation
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Unlabelled Concepts
Which is the odd object out, and why?
CircleWhite SquareGrey CircleGrey CircleSmall Triangle SquareSmall
One Two Three Four Five
Attributes
Objects
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Lattice of shapes and ObjectsAnswer: Object 5.
Because it is the only one which is not different (it is undifferentiated).
The concept exists even if unlabelled.
Object 5 is the template, prototype, model etc.
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Lattice of shapes and Objects
•Genus
•Differentia
Adapted from Hunt, M. 1982. The universe within. Simon and Schuster, New York. Figure. 58, p. 300