Phono-Logical Theories BBK Spring 2013
6: Optimality Theory
Problems with the linear model - recap
●With (the) derivation
●No logical connection / causal relation between structural description and structural change ●=> overgenerates ●abstract UR's, extrinsic rule ordering, intermediate repr's ●solution: non-derivational theories: ●Government Phonology (GP) ●Optimality Theory (OT)
OT: intro
● UG contains a set of violable constraints ● constraints: universal properties of lang ● each lang has its own ranking for these constraints ● differences between constraint rankings => different patterns => systematic variation between languages ● ranking: A >> B
OT: intro
● fundamental conflict: markedness constraints vs. faithfulness constraints ● markedness constraints, e.g. ONSET, NoCoda
●
OT: intro
OT: intro
● fundamental conflict: markedness constraints vs. faithfulness constraints ● markedness constraints, e.g. ONSET, NoCoda ● faithfulness constraints: require that the output be identical to the input
●
OT: intro
OT: intro
● fundamental conflict: markedness constraints vs. faithfulness constraints ● markedness constraints, e.g. ONSET, NoCoda ● faithfulness constraints: require that the output be identical to the input ● a constraint may be violated successfully only in order to satisfy a higher-ranked constraint ● Principles and Parameters replaced by language-particular ranking of universal
constraints OT: intro
● output-oriented: "conspiracy" of phonological regularities ● standard representations, novel mechanism for "derivation" (evaluation) ● originally developed for phonology, later applied to syntax, morphology and other branches of linx
OT: the structure of grammar
OT: the constraints
OT: the structure of grammar
OT: the structure of grammar
OT: the structure of grammar
Summary
Example: Dutch
Example: Dutch
Example: Dutch vs. English
Example: allophonic variation
Example: allophonic variation
Example: allophonic variation
Example: allophonic variation