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ellipsis - Why is the subject omitted in sentences like "Thought you'd never ask"? - English Language & Usage Stack Exchange
This is due to a phenomenon that occurs in intimate conversational spoken English called "Conversational Deletion". It was discussed and exemplified quite thoroughly in a 1974 PhD dissertation in linguistics at the University of Michigan that I had the honor of directing.

Thrasher, Randolph H. Jr. 1974. Shouldn't Ignore These Strings: A Study of Conversational Deletion, Ph.D. Dissertation, Linguistics, University of Michigan, Ann Arbor

...

"The phenomenon can be viewed as erosion of the beginning of sentences, deleting (some, but not all) articles, dummies, auxiliaries, possessives, conditional if, and [most relevantly for this discussion -jl] subject pronouns. But it only erodes up to a point, and only in some cases.

"Whatever is exposed (in sentence initial position) can be swept away. If erosion of the first element exposes another vulnerable element, this too may be eroded. The process continues until a hard (non-vulnerable) element is encountered." [ibidem p.9]
q-n-a  stackex  anglo  language  writing  speaking  linguistics  thesis 
21 days ago by nhaliday
Applications of computational learning theory in the cognitive sciences - Psychology & Neuroscience Stack Exchange
1. Gold's theorem on the unlearnability in the limit of certain sets of languages, among them context-free ones.

2. Ronald de Wolf's master's thesis on the impossibility to PAC-learn context-free languages.

The first made quiet a stir in the poverty-of-the-stimulus debate, and the second has been unnoticed by cognitive science.
q-n-a  stackex  psychology  cog-psych  learning  learning-theory  machine-learning  PAC  lower-bounds  no-go  language  linguistics  models  fall-2015 
25 days ago by nhaliday
etymology - What does "no love lost" mean and where does it come from? - English Language & Usage Stack Exchange
Searching Google books, I find that what the phrase originally meant in the 17th and 18th centuries was that "A loves B just as much as B loves A"; the amount of love is balanced, so there is no love lost. In other words, unrequited love was considered to be "lost". This could be used to say they both love each other equally, or they both hate each other equally. The idiom has now come to mean only the second possibility.

--

If two people love each other, then fall out (because of an argument or other reason), then there was love lost between them. But if two people don't care much for each other, then have a falling out, then there really was no love lost between them.

Interestingly, when it was originated in the 1500s, until about 1800, it could indicate either extreme love or extreme hate.
q-n-a  stackex  anglo  language  aphorism  jargon  emotion  sociality  janus  love-hate  literature  history  early-modern  quotes  roots  intricacy  britain  poetry  writing  europe  the-great-west-whale  paradox  parallax  duty  lexical 
april 2018 by nhaliday
"Really six people present": origin of phrase commonly attributed to William James - English Language & Usage Stack Exchange
Whenever two people meet, there are really six people present. There is each man as he sees himself, each man as the other person sees him, and each man as he really is.

...

Here's a graph of the number of references of the phrase "really six people present" Click on the first range (1800-1017) and you'll see this, which attributes this statement to Oliver Wendell Holmes. What's perhaps relevant is the reference to "John and James"--I'm guessing two placeholder names.
q-n-a  stackex  quotes  aphorism  law  big-peeps  old-anglo  illusion  truth  anthropology  psychology  cog-psych  social-psych  realness  dennett  biases  neurons  rationality  within-without  theory-of-mind  subjective-objective  forms-instances  parallax  the-self 
march 2018 by nhaliday
microeconomics - Partial vs. general equilibrium - Economics Stack Exchange
The main difference between partial and general equilibrium models is, that partial equilibrium models assume that what happens on the market one wants to analyze has no effect on other markets.
q-n-a  stackex  explanation  jargon  comparison  concept  models  economics  micro  macro  equilibrium  supply-demand  markets  methodology  competition 
november 2017 by nhaliday
parsing - lexers vs parsers - Stack Overflow
Yes, they are very different in theory, and in implementation.

Lexers are used to recognize "words" that make up language elements, because the structure of such words is generally simple. Regular expressions are extremely good at handling this simpler structure, and there are very high-performance regular-expression matching engines used to implement lexers.

Parsers are used to recognize "structure" of a language phrases. Such structure is generally far beyond what "regular expressions" can recognize, so one needs "context sensitive" parsers to extract such structure. Context-sensitive parsers are hard to build, so the engineering compromise is to use "context-free" grammars and add hacks to the parsers ("symbol tables", etc.) to handle the context-sensitive part.

Neither lexing nor parsing technology is likely to go away soon.

They may be unified by deciding to use "parsing" technology to recognize "words", as is currently explored by so-called scannerless GLR parsers. That has a runtime cost, as you are applying more general machinery to what is often a problem that doesn't need it, and usually you pay for that in overhead. Where you have lots of free cycles, that overhead may not matter. If you process a lot of text, then the overhead does matter and classical regular expression parsers will continue to be used.
q-n-a  stackex  programming  compilers  automata  explanation  comparison  jargon  strings 
november 2017 by nhaliday

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