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- Date: Wed, 27 Jan 1993 11:23:51 EST
- Sender: "Control Systems Group Network (CSGnet)" <CSG-L@UIUCVMD.BITNET>
- From: "Bruce E. Nevin" <bnevin@CCB.BBN.COM>
- Subject: writing, NP-VP, Kropotkin, Occam
- Lines: 183
-
- [From: Bruce Nevin (Wed 930127 08:54:45)]
-
- (Avery Andrews 930123.1350) --
-
- > People appear to have a fixed handwriting
- >style that is invariant over a substantial size range, from blackboard
- >writing done with arm muscles, to ordinary writing done with fingers.
-
- Not exactly invariant. It changes according to mood, energy
- level, even illness (where the illness has no direct debilitating
- effect on control of hand/arm movements). Even more interesting
- are correlations of gestural characteristics of handwriting with
- attributes of personal character. People who cross multiple ts
- in the same word, for example, tend in other areas of life also
- to integrate tasks rather than treat them atomically, in
- isolation; people who write with more pressure tend to be more
- forceful and emphatic than those who write with light pressure;
- the slant of the writing correlates with emotional expressiveness
- vs. reserve, and so on. (My mother in law has for more than 50
- years worked for individuals and corporations and testified in
- legal proceedings as a handwriting analyst.) Correlations of
- this sort suggest that perceptual control at some higher level
- ("take in a larger picture and integrate on the fly") has
- consequences that are incidental to the effecting of lower-level
- control (crossing each t in a word) and also incidental to the
- higher-level purposes for which that lower-level control is
- enlisted (writing a note saying you went out to get some beer for
- Avery). Reminiscent of Manfred Clynes' "sentics" also. The
- claim is made that the correlation can be used not only for
- diagnosis but also for therapy. (There was a book some years
- back called something like _Grapho-Therapeutics_ that presented
- this application of handwriting analysis.) Well, *you* try
- changing some characteristic of your handwriting (writing with
- more pressure if you write lightly, dotting every i and crossing
- every t if you sometimes omit them in haste, writing with more
- forward slant, or the reverse of one of these, and try making it
- habitual, and see what sort of resistance you run into.
- Changing the character of one's handwriting is a disturbance.
- The interesting question is, what controlled perceptions are
- being disturbed?
-
- (Bill Powers (930126.0830) ) --
-
- > I've seen this in linguistics. In a top-down model, some global
- > feature of a sentence is specified. This feature is then
- > exemplified by some element of a specific sentence at a lower
- > level. But why that sentence, and not a totally different one
- > that is also an example of the higher form? In fact the detailed
- > sentences used as examples vary all over the place, so there is
- > clearly no constraint on which sentence is to be used as an
- > example. This is a major problem for top-down models (at least as
- > far as implementing them is concerned).
-
- This characterization does not apply to operator grammar, which
- does not involve abstract structures. The lack of abstract
- structures is taken as a fault in Generativist circles--there is
- talk of being "data-bound" for example, as a pejorative. But the
- abstract structures of the various flavors of Generative grammar
- are due to the historical happenstance that Chomsky formalized a
- particular type of sentence-analysis in the early 1950s, called
- immediate-constituent analysis, and neither he nor any of his
- followers (save a very few) have ever stepped outside its frame,
- so that phrase-structure trees with NPs and VPs have become
- institutionalized as an almost obligatory notational convention
- for presenting ideas about syntax and semantics.
-
- In this type of analysis, a sentence (S) is first divided into
- two parts or immediate constituents. In English these are
- typically a noun phrase (NP) followed by a verb phrase (VP).
- These constituents are each in turn segmented into two immediate
- constituents, and so on, until one arrives at morphemes that have
- no further immediate constituents. The result is a
- pseudo-hierarchy of phrase-classes, and (reversing the steps of
- analysis) a "phrase-structure grammar" (PSG) employing rewrite
- rules adapted from Post production systems in mathematical logic.
- In a rewriting rule, the name of a phrase class appears on the
- left side of an arrow (glossed "goes to" or "yields"), and on the
- right side of the arrow appears the set of sequences of phrase
- classes next below it in the pseudo-hierarchy.
-
- Taking the names of the phrase-classes (NP, VP, etc.) as
- primitives of the grammar means that one cannot refer to meaning
- during the course of producing a sentence. It means, further,
- that the grammar cannot produce a sentence, but only a structure
- for a sentence. The choice of words at the "leaves" of the tree,
- and the semantic considerations that drive the choice of words,
- are seen as orthogonal to the processes that generate syntactic
- structures for those words.
-
- In string analysis (center-and-adjunct grammar), in dependency
- grammar, and in operator grammar (word dependency and reduction),
- meaning-driven relations between words are the principal
- motivation (controlled perceptions) in the processes that
- generate syntactic structures, the other sort of motivation
- being control for conformity to convention in choice among
- alternatives for word selection and reductions, including matters
- of emphasis, style, and expression.
-
- Much ink has been spilled in attempts to compensate the essential
- inability of PSG to show word relations (cp. the "head-of"
- relation), in for example X-bar theory, theta roles, all the
- elaborate abstractions of government-binding theory, and (in a
- different effort) head-driven PSG, etc. Much better would be to
- jettison the whole notational commitment. But that is like
- trying to get rid of FORTRAN, or persuading all typists to
- convert from QWERTY to DVORAK keyboards. Or persuading
- psychologists that there is something of value in PCT.
-
- (Avery Andrews 930127.1000) --
-
- > As for linguistics, what the grammars are supposed to do is define
- > a set of constraints, to which others can be added. What these
- > constraints do is give you a limited number of OK pairings of overt
- > strings (utterances) and semantic structures. Then their can be additional
- > constraints added, such that the structure be one involving a
- > certain overt string (that's parsing) or semantic structure (that's
- > production). So I don't really see what the problem is in general
- > terms, tho the specifics are obviously a mess, & I think the notion
- > of `semantic structure' is especially dubious (but have no coherent
- > ideas about what to replace it with).
-
- In operator grammar, the operator words and argument words and
- their word dependencies constitute the semantic structure. There
- is a hierarchy of constraints in language, each of which
- contributes to the information in sentences: the constraint
- specifying phonemic contrasts, redundancy in phoneme-sequences
- (whether represented alphabetically or in some other way)
- specifying morphemes, redundancy in morpheme-sequences specifying
- word-dependencies and reductions, redundancy across periods of
- discourse specifying discourse structure and information
- structures in texts with respect to sublanguage grammars. All of
- this is spelled out coherently enough in _A Grammar of English on
- Mathematical Principles_ (1982) and _A Theory of Language and
- Information_ (1991), especially the latter. I will have a paper
- on the form/information question in _Historiographia Linguistica_
- this Spring. I could make the draft of that available to anyone
- interested, and would certainly value comments on it.
-
- (Z_KURTZERML@CCSVAX.SFASU.EDU Fri, 22 Jan 1993 11:36:31) --
-
- there is was a russian political theorist that concentrated
- on how most and the most beneficial interactions between
- organisms were cooperative; it was written counter to
- darwin's ideas of struggle and the social and political
- conclusions drawn from his ideas, ideas that unfortunately
- have not been played out and remain as status quo
- justifications for for the miserable lot of many. anyway, his
- name is was Kropokin and the book is Mutual Aid (stick with
- the title, i think i misspelled his name).
-
- Prince Pyotr (Peter) Kropotkin was a first-rate biologist and one
- of the early pioneers in the study of ecological systems, as well
- as a leading anarchist (how's that for an oxymoron?)
- theoretician, writer, and activist in the tradition of Tolstoy.
- In _Mutual Aid_ he says that Darwin gave as much weight to
- cooperation as to competition in determination of fitness and
- survival, and argues against those many for whom Darwinism was a
- convenient justification for the status quo. Instead of saying
- the peasants are poor and miserable because God made them that
- way, say they're poor and miserable because they aren't fitted
- for anything better, and if they die that's just evolution
- weeding them out and making the human race more perfect with gems
- like me and thee. Social Darwinism is of course alive and well
- today, or rather (and more generally) the human propensity to use
- our thinking capacity to justify conclusions already comfortably
- in hand rather than to reason our way to unforeseen conclusions.
- "How wonderful a thing it is to be a rational being," said Ben
- Franklin in his autobiography, recounting how he lapsed from
- strict vegetarianism due to the succulent smell of a neighbor's
- fish baking, "for we can make up a reason for whatever we have
- decided beforehand."
-
- Martin --
-
- I've read through the Occam piece, but have not got to the bottom
- of my disquiet. I started to write something here, but decided
- to wait until I have been able to give it more thought.
- Everything ought to be re-framed, I believe, in terms of word
- dependencies in the sublanguage grammar for the science in which
- the hypotheses are stated.
-
- Bruce
- bn@bbn.com
-