316 theory morphology

Question 1

productive morpheme

Answer 1

a morpheme is productive when there a multiple instances of an instance of a word.. create..creating..created

Question 2

morphology

Answer 2

the study of how words are composed using morphemes

Question 3

morphological parsing

Answer 3

taking the surface input and breaking it down into morphemes,identifying its components and underlying structure.. the act of taking foxes and its fox- noun and es-plural suffix

Question 4

Inflection, derivation, compounding,cliticization

Answer 4

changind of words which results in the:
1. same class
2.different class
combining stems to make a new word
apostrophe words

Question 5

why do we parse

Answer 5

for spell checking
to identify the stem for information retrieval
to identify parts of speech for machine translation and sentence parsing

Question 6

what do we need to build a morphological parser

Answer 6

lexicon- stems and affices
morphotactics- model of how morphemes can be affixed to the stem
orthographic rules: spelling modifications when the affixtion occurs

Question 7

lexicon

Answer 7

a repository of words

Question 8

limitations of using FSA’s

Answer 8

-non determinism
-its too large ..adding new items will need to recompute the whole FSA so in this case its too complication and innefficient
-its limited..can only tell us what word is in the language or not

Question 9

if a and b are independant..what is p(a/b)
what is the formula for P(a/b)
mutuall exclusive and exhaustive

Answer 9

• P(a)
• P(A n B)/P(B)
  *ai n aj= empty set
• all mutually exclusive items make up the whole sample space

Question 10

alternative P(A/B)

Answer 10

*P(A N B)/P(B)
* P(B/A).P(A)/sum(P(B/Ai).P(Ai))
* sum = the Ai and the Ai’(not)