mphil 2007 constraints

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MPhil Seminar: Evaluating OT
Constraint
Overview
Two attacks on constraints



OTROTB-LO: no constraints on URs
Reiss, NoBanana: no surface (or other) constraints
Basic problem:
 Can one extract generalizations from surface (especially static/non-alternating)
patterns?
Evidence for extraction of generalizations from the lexicon



Best-known case: goed stage of L1 acquisition
Also Ohala, Pierrehumbert, Hayes, etc. on statistical knowledge
Marcus et al. 1999, Guasti 2002, Kuhl 2004 on child language: infants are able
to perform statistical analysis over pre-lexical representations, e.g. compute
distributional regularities and find the most frequent word shapes.
Claims:

Humans form phonological generalizations over their lexicons, often best
modelled as MSCs or surface constraints
 Often statistical in origin, but may be deterministic

OTROTB-LO wrongly predicts this to be impossible and creates other problems
Where are linguistic
generalizations captured?
lexicon/underlying representation
Hale and Reiss: only
here (no constraints)
rules
transformations
DP
(GEN; no generalizations)
¿constraints on GEN?
surface representation
OT
Morpheme Structure Constraints
Initially employed to capture static phonological
generalizations about morpheme structure, as
opposed to alternations being captured by rules

Root Harmony (Kiparsky 1968)
 C0 V[atr] … C0 V[atr] C0 (Akan and Wolof, K 1994:351)

Japanese: all post-nasal obstruents must be voiced in
native words
 tombo ‘dragonfly’ (*tompo)
 mi-te ‘seeing’ vs. šin-de ‘dying’
 Can be modeled as an OT output constraint *NT

(though Itō, Mester, and Padgett 1995:819 call it an MSC…)
See Kenstowicz and Kisseberth 1979:425-433, Kenstowicz 1994:351-3, 524-8 for discussion
Early arguments for MSCs
Halle 1959, 1962, Chomsky and Halle
1968, etc.

account for native speakers’ intuitions of what
constitutes a well-formed word in their
language
Esper 1925
Method

Ss learn names of 16 objects, each having one of four different shapes and one of four different colors

Ss trained on 14 object-name associations but tested on 16 to see if they generalize what they learned

3 experimental conditions:

names presented to Group 1:



Names presented to Group 2:



naslig, sownlig, nasdeg, sowndeg, where nas- and sown- coded color and -lig and -deg coded shape
Since these names consisted of two phonologically legal morphemes, this group could simplify their task by learning not 16
names but 8 morphemes (if they could discover them) plus the simple rule that the color morpheme preceded the shape
morpheme in each name.
bi-morphemic names, as with Group 1
unlike group 1, the morphemes were not phonologically legal for English, e.g., nulgen, nuzgub, pelgen, pezgub (where nu- and
pe- were color morphemes and -lgen and -zgub were shape morphemes, the latter two violating English morpheme structure
constraints)
Names presented to Group 3 (a control group):


names with no morphemic structure
no recourse but to learn 16 idiosyncratic names
Results




As expected, group 1 learned their names much faster and more accurately than group 3.
Performance of Group 2 was similar to (and marginally worse than) that of group 3
Analysis of the errors of group 2, including how they generalized what they’d learned to the two object-name associations
excluded from the training session, revealed that they tried to make phonologically legal morphemes from the ill-formed ones.
Demonstrates (i) psychological reality of MSCs; (ii) ability to conduct morphological analysis
Problems


languages do not always make URs conform to surface phonotactics, e.g. Homshetsma ‘hit’, Maori final consonants, Hebrew
consonantal roots, Turkish epenthesis
the semantic/ morphological shape of the compound words to be learned in this system is basically unnatural. It is unnatural
because languages almost never attach color words to shape words to form compounds or derived words (Tahny, 1977).
Although we occasionally find "frozen forms" (Newport & Bellugi, 1978) like greenhouse or blackbird, we almost never find a
productive process that turns the concept "red square" into the single word "redsquare."
Arguments against MSCs
Duplication Problem (Kisseberth 1970 et seqq.)


(i)  Turkish
(Kaun and
Harrison 1999)
(ii)  Marash
(Vaux 1998)


Japanese MSC *NT for *tompo and rule for šin-de vs. mi-te
“there is good reason to doubt the basic assumption…that the harmony found in
roots and affixes is the product of two separate grammatical mechanisms: a
morpheme structure condition and a feature-changing rule…it implies the existence
of [i] languages in which all the suffixes systematically harmonize to the root but the
roots show no restrictions on vowel combinations or in which the opposite state of
affairs holds (i.e. [ii] the root vowels harmonize but affixes fail to alternate).” (K
1994:353)
“this formal similarity and functional redundancy between MSCs and rules is a
significant liability of the classic theory. If MSCs and rules really are distinct
components of linguistic theory, then they should be cleanly differentiated in form
and function, but they are not.” (McCarthy 1998)
“This stance makes maximal use of theoretical resources already required, avoiding
the loss of generalization entailed by adding further language-particular apparatus
devoted to input selection. (In this we pursue ideas implicit in Stampe 1969,
1973/79, and deal with Kisseberth’s grammar/lexicon “duplication problem” by
having no duplication.)” (P and S 1993/2002:209)
Wellformedness judgements

MSCs predict that speakers can only make ternary distinctions in well-formedness,
whereas speakers in fact make scalar judgements (Greenberg and Jenkins 1964,
Ohala & Ohala 1986:242; see Pierrehumbert 2003 for literature review).
Faulty conception of MSCs I
Kie Zuraw presents typical OT misconception that MSCs are required to capture any
surface-true generalization

http://www.linguistics.ucla.edu/people/zuraw/200A_2004/11SurfaceConstraints.pdf
Zuraw’s take on DP
analysis of these data:
• MSC for ‘green’ etc.
• rule for ‘old man’ etc.
She sees this as “Duplication
Problem” (!)
Actual DP analysis
(assuming new loans are
exempt):
• Single rule for both ‘green’
and ‘old man’ etc.
• Not subject to DEC
Faulty conception of MSCs II
McCarthy 1998


“According to the premises of classic generative phonology, final devoicing in L is
a result of a phonological rule. In L’, though, devoicing is attributed to a
morpheme structure constraint (MSC), the name given to restrictions on
underlying representations.”
BV: in the absence of evidence from loanwords, language games, etc. showing
that the lack of final D in URs is the product of an active MSC (which McCarthy
doesn’t provide), such cases actually involve “Stampean Occultation”:
 “Suppose some rule consistently replaces the structure /A/ by [B]. Finding no surface
Here:
• A = voiced stop
• B = voiceless stop
[A]s, language learners will not be tempted to set up underlying /A/s in the lexicon,
positing only underlying /B/s instead. In this way, /B/ hides or ‘occults’ /A/, obtaining
the same descriptive effect as an anti-/A/ MSC without invoking any actual restrictions
on the lexicon.” [McCarthy 1998:1]
Faulty conception of MSCs III
“Under the thesis of richness of the base, OT does not
countenance morpheme structure constraints. This paper
shows that some phenomena that have been attributed
to morpheme structure constraints can be analyzed with
constraints that forbid alternations within paradigms.”
Given what I’ve already proposed,
how do you think we should deal with
Dialect B?
ROTB and Lexicon Optimization
“OT attributes linguistic generalizations to the grammar, not the
lexicon...this thesis is called ‘richness of the base’: inputs are
unrestricted, but the grammar is responsible for mapping all inputs
onto pronounceable forms of the language.” (McCarthy 2003:53)

“if the grammar yields an inventory with only unvoiced obstruents, no
segments in lexical forms will contain [voice] without [sonorant] — even
though all feature combinations are universally available as inputs.”
(Smolensky 1996)
Lexicon Optimization (Inkelas 1994, based on P&S 1993/2002:209)

“Given a grammar G and a set S = {S1, S2, ... Si} of surface phonetic forms
for a morpheme M, suppose that there is a set of inputs I = {I1, I2, ... Ij},
each of whose members has a set of surface realizations equivalent to S.
There is some Ii  I such that the mapping between Ii and the members of
S is the most harmonic with respect to G, i.e. incurs the fewest marks for
the highest ranked constraints. The learner should choose Ii as the
underlying representation for M.” (Inkelas 1994)
ROTB and Lexicon Optimization
Turkish final devoicing (to be discussed in more detail later)


[vɑth] ‘watt’ : [vɑthɯ] ‘watt-accusative’
[thɑth] ‘taste’ : [thɑdɯ] ‘taste-accusative’
One can force UR  SR by having alternations in the paradigm (P&S
1993/2002:210, Inkelas 1994:7), but if there is no evidence for alternations
(e.g. with a nonce word), ROTB-LO (wrongly) predicts UR = SR.
/vɑth/
Voice  Coda
MaxF
[guruph]
[vɑth] : [vɑthɯ]
/thɑd/
*!
*
Voice  Coda
MaxF
DepF
/thyph/
*
*!
*
 /thyb/
*
*
*!
**
**
/grub/
Voice  Coda
MaxF
DepF
**!
**
*
*
[thɑth] : [thɑdɯ]
[thɑd] : [thɑdɯ]
DepF
*!
[thɑth] : [thɑthɯ]
*!
Voice  Coda
MaxF
 /gruph/
[vɑth] : [vɑdɯ]
[vɑd] : [vɑdɯ]
LO cases
DepF
[thjub]
Response to response to MSCs
The duplication argument, which is the heart of the
attack on MSCs, only holds ceteris paribus, but in fact all
else is not equal
1.
2.
ROTB-LO incorrectly predicts the nonexistence of productive
lexical generalizations utilized by speakers in constructing
underlying representations.
ROTB-LO incorrectly predicts (assuming universal markedness
constraint hierarchies; cf. Prince and Smolensky 1993, Steriade
1999:42, Lombardi 2003) the absence of languages containing
the marked but not the unmarked member of a phonemic
opposition
 Cf. Russian has palatalized /čj/ but not plain */č/
3.
4.
5.
ROTB-LO incorrectly predicts conformity of URs to surface
phonotactics
ROTB-LO incorrectly requires full spec. in non-alternating cases
ROTB-LO requires stipulation that certain GEN alterations (e.g.
syllabification) are invisible to Faith and Ident constraints
Deneutralization
Predictions for picking UR from ambiguous input:



OTROTB-LO: pick transparent UR
Hayes 1995: pick base form as UR whether or not there are alternations
Gallistel 2003: When animals and humans have to solve problems with
incomplete knowledge, they use stochastic/probabilistic models
 NB deterministic generalization may be spawned from statistical knowledge
 In a language with 60% s and 40% t, s may be picked 60% or 100% of the time;
choice may be arbitrary with insufficiently skewed statistics, e.g. with pigeons
Type 1 (structure-preserving)

English final /r/
 Several nonrhotic Englishes productively assign final /r/ to all low-vowel-final roots
(Mohanan 1985, Stampe 1991, Harris 1994)

English backformation wrt Velar Softening (Pierrehumbert 2002)
 2 subjects backformed e.g. hovacity  hova[k], 33% and 75% of the time



Devoicing languages (German, Russian, Polish; Turkish, Lac Simon, Dutch)
Korean word-final [t]  /s/
Japanese [ŋ]  /g/ (Ito, McCarthy)
Type 2 (non-structure-preserving)

English flapping
 sporadic for some: antidote for anecdote, calisthentics, etc.
 systematic: SN’s flap  /t/
Korean borrowing of Coda [t]
Korean word-final [t|]  /t, th, t’, č, čh, č’, s, s’/
Surface word-final postvocalic [t] in loans and nonce words
invariably assigned to /s/ (Martin 1992, Kang 1998, Hayes
1998, Iverson & Lee 2004)

supermarket  nom. [supəmakhet|], dat. [supəmakhese]
OTROTB-LO wrongly predicts assignment to /t/
basic problem: OTROTB-LO does not allow for statistical
generalizing over the lexicon to play a role in the
construction of URs
What appears to be involved in the Korean case is that
speakers know that surface word-final [t]s most often
come from underlying /s/ in their native lexicon, and they
therefore assign new words to the same pattern.
NB these override voice
specification in source language
Turkish final [voice]
source
voiced UR hits
voiceless UR
hits
E tube
tübü
147
tüpü
6330
E club
kulübü
145,000 kulüpü
7
klübü
35,300
klüpü
4
18,000
gurupu
17 (0.1%)
E/F group(e) gurubu
F principe
grubu
327,000 grupu
448 (0.1%)
prensibi
16,600
76
prensipi
All [polysyllabic] forms that have a voiceless obstruent when
final have a voiced one when suffixed (Lewis 1967:11)
The converse has now developed for monosyllables (Inkelas,
Pycha, and Sprouse 2004)
TELL: 19 monosylls with final voiced stop; 145 with
voiceless; current MSC plausibly extracted from this
Lac Simon Algonquian
1. underlying voicing contrast
2. rule of initial obstruent devoicing
3. all new stem-initial obstruents  underlyingly voiced
(Nykiel and Nykiel 1979, Kaye 1979, Iverson 1983).


French banane [banan]  LSA [pa:na:n] ‘banana’, but
nba:na:nm ‘my banana’
English coffee  LSA [ko:fi:ke] ‘he makes coffee’, but
nigo:fi:ke ‘I make coffee’
segment
a.
/g/
b.
/k/
UR
SR w/ devoicing
SR w/o devoicing
/ga:zo:tm
ka:zo:tm ‘he hides’ n-ga:zo:tm ‘I hide’
/
/ka:t/
n-ka:t ‘my leg’
NB the relevant frequency facts
for Lac Simon are not known.
not *n-ga:t; note that the same
1st person prefix conditions the
voiced allophone in (a)
Statistical knowledge
The basic problem:


OTROTB-LO does not allow for generalizations extracted from
statistical properties of the lexicon to play a role in the grammar
Counterevidence (cf. Skousen 1989):
 Greenberg and Jenkins 1964, Ohala and Ohala 1986, Frisch, Large,
and Pisoni 2000, Hay, Pierrehumbert, and Beckman 2004, etc. etc. on
the well-formedness of English nonce words
 Hayes 1995 on Turkish
 Pierrehumbert 2002 on English velar softening
 Polish speakers assign masculine gender to all consonant-final words
and feminine gender to all [a]-final words (Baran 2000)

Statistical knowledge  (categorical?) linguistic generalizations:
 “All other things being equal, the cognitive system prefers
generalizations which yield more information about the outcome over
those which yield less.” (Pierrehumbert 2002)
 “speakers extend morphological patterns based on abstract structural
properties, of a kind appropriately described with rules” (Albright and
Hayes 2003)
More deterministic…
German chooses -s as its productive plural, though it
isn’t most frequent (though frequency does affect its
productivity–Bybee 1995)
Moreton 1999:


English speakers aware of MSC banning final lax vowels
“phonotactic knowledge consists of categorical, rule-like
prohibitions, rather than emerging from statistical properties of
the lexicon”
Inkelas, Pycha, and Sprouse 2004 on Turkish voice
alternations: not conditioned by lexical neighborhood
density or frequency

mono- vs. polysyllabicity is best predictor of (non-)alternation
Underlying -structure
“CV-language learners will never insert into the
lexicon any underlying forms that violate the
(surface) syllable structure constraints of their
language” (P&S 2002:210)
Problem: Turkish and other languages that do
not postulate underlying epenthesis, even
though doing so does not conform to their
surface syllable canon


vakith ‘time’ : acc. vakth-i (< Arabic wakt)
istop ‘stop’ : acc. istop-u
 (not *istob-u, the expected polysyllabic treatment)
ROTB-LO requires full specification
in non-alternating cases
OTROTB-LO requires that all non-alternating
surface forms have fully specified lexical entries
Disproven by Kaun and Harrison 1999 with
respect to root-internal harmony in Tuvan,
Finnish, and Turkish

After application of relevant language games,
harmonic roots re-harmonize but disharmonic roots
don’t
Cf. Krämer 2004 for German glottal stop
insertion and English laxing

(He argues that LO actually can’t decide between fully
specified and underspecified form as UR, since
identity constraints are stipulated to not penalize
underspecified URs)
Stipulation
Incorporating ROTB into OT requires stipulating that GEN
be able to alter inputs in ways that are invisible to
faithfulness constraints (McCarthy 2002:38) and Ident
constraints (Krämer 2004).

McCarthy 2002:38: this is the only way to account for the universal
non-contrastiveness of certain phonological distinctions
 syllabification of tautomorphemic sequences is never contrastive, e.g.
hab.la vs. ha.bla
 “A necessary condition for ensuring that syllabification is never
contrastive is that syllabification is faithfulness-free, so an unsyllabified
input like /maba/ or a syllabified input like /mab.a/ will be associated
by GEN with all of the following fully faithful and fully syllabified
candidates: m.a.b.a, ma.b.a, m.a.ba, m.aba, m.ab.a, ma.ba, mab.a,
maba. Many of these candidates are sure losers for markedness
reasons, such as the absurd monosyllable maba. But they are still fully
faithful in the sense that they incur no faithfulness violations.”
ROTB doesn’t follow from
OT architecture
IO constraints allow reference to input forms


 OT has the power to evaluate I constraints
(constraints on inputs without reference to
corresponding outputs)
in fact, these are less computationally complex than
IO constraints
*{#[…D]#}I : no monosyllabic URs ending in
voiced obstruent
NB I constraints don’t do any work in IO
mappings; only involved in UR construction
[thjub]
*{#[…D]#}I
 /thyph/
/thyb/
*!
Voice  Coda
MaxF
DepF
*
*
*
*
Summary of OTROTB-LO problems
1. Incorrectly predicts the nonexistence of MSCs
2. Incorrectly predicts the absence of languages
containing the marked but not the unmarked
member of a phonemic opposition
3. Incorrectly predicts conformity of URs to
surface phonotactics
4. Incorrectly requires full specification in nonalternating cases
5. Stipulates invisibility to Faith and Ident
constraints
Solution
The problems presented here are resolved
straightforwardly by assuming that humans can extract
generalizations from the structure of their lexicon.

NB generalizations can be extracted in the absence of
alternations (cf. Dell et al. 2000), e.g. from statistical knowledge
This move is consistent with what we know about
human and primate cognition:




Pierrehumbert 2002, 2003, etc. on statistical knowledge in
phonology
Marcus et al. 1999, Guasti 2002, etc. on child language
Kirkham et al. 2002 on vision in infants
Ramus et al. 2000 and Hauser et al. 2002 on primates
Grounded in the fundamental linguistic tenet that
extracting generalizations is the heart of grammar
construction.
Surface constraints
Dell et al. and Goldrick 2004 on speech
errors (as we saw in the speech errors
lecture)

NB implies that humans can learn constraints
on representations in the absence of
alternations (cf. English learning of h and
engma distribution)
Identity constraints and
ineffability (Control constraints)
schm reduplication

Q19 Schmuck


Q20 Schmooze


Ø (70), shluck (8), schnuck (5), schmuck (4), fluck (3), shpuck
(1), fuck, smuck, shfuck, shvuck, schmluck, shnook
Ø (59), shnooze (10), shmooze (4), flooze (4), shpooze (4),
shlooze (3), shmmooze, commooze, shplooze, mooze, wooze
Q22 Schmidt

Ø (66), shlidt (4), shpidt (4), shmidt (3), shnidt (3), flidt (2),
vlidt, smidt, midt
morpheme sequencing



*lightninging
German Berlin-er ‘person from Berlin’ vs. Münster-aner
(*Münster-er)
Lenin-akan-yan vs. *Lenin-akan-akan
Conclusions
Humans can and do extract constraints
(both surface and underlying) from
phonological and morphological data (both
alternating and static)


Important component of animal cognition: cf.
conditioning studies
NB at least some constraints are inviolable
Theories attacking such constraints
(especially OT) misunderstand use of MSCs
and ignore much of the relevant data.
References I
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Greenberg and Jenkins 1964. they derive well-formedness judgements from comparison to forms in the lexicon, not MSCs
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Ambiguity and animal wug tests
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