Re: Natural Language Parser

From	rpw3@rpw3.org (Rob Warnock)
Newsgroups	comp.compilers
Subject	Re: Natural Language Parser
Date	2015-09-30 11:05 +0000
Organization	Rob Warnock, Consulting Systems Architect
Message-ID	<15-09-032@comp.compilers> (permalink)
References	<15-09-025@comp.compilers> <15-09-028@comp.compilers>

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George Neuner  <gneuner2@comcast.net> wrote:
+---------------
| Seima Rao <seimarao@gmail.com> wrote:
| > I am looking for a C++ API based English Language Parser.
...
| > This is my only requirement. I dont need any semanticizing
| > artefacts.
|
| You need to be aware that natural languages *can't* be parsed
| without semantics - i.e. without considering "parts of speech".
|
| Depending on context, the same word may represent, e.g., a verb, an
| adverb, or even a (type of) noun.  What part of speech the word
| represents in context determines the ultimate meaning of the sentence.
| Even which part of speech a word represents may be controversial. Most
| human writing (and speaking) is quite imprecise: most sentences can be
| parsed in more than one way, and the meanings of the various parsings
| may be very different.
+---------------

Exactly. Consider the classical "Buffalo" example:

    https://en.wikipedia.org/wiki/Buffalo_buffalo_Buffalo_buffalo_buffalo_buffalo_Buffalo_buffalo
    "Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo"
    is a grammatically correct sentence in the English language,
    used as an example of how homonyms and homophones can be used
    to create complicated linguistic constructs.
    ...
    Thomas Tymoczko has pointed out that there is nothing special
    about eight "buffalos"; any sentence consisting solely of the
    word "buffalo" repeated any number of times is grammatically
    correct.
    ...
    Versions of the linguistic oddity can be constructed with
    other words which similarly simultaneously serve as collective
    noun, adjective, and verb, some of which need no capitalization
    (such as "police").


-Rob

-----
Rob Warnock		<rpw3@rpw3.org>
627 26th Avenue		<http://rpw3.org/>
San Mateo, CA 94403

Thread

Natural Language Parser Seima Rao <seimarao@gmail.com> - 2015-09-29 06:15 +0530
  Re: Natural Language Parser George Neuner <gneuner2@comcast.net> - 2015-09-29 17:02 -0400
    Re: Natural Language Parser rpw3@rpw3.org (Rob Warnock) - 2015-09-30 11:05 +0000
      Re: unnatural natural language, was Natural Language Parser George Neuner <gneuner2@comcast.net> - 2015-10-01 12:41 -0400
  Re: Natural Language Parser Quinn Jackson <thothic.quinn@gmail.com> - 2015-09-29 13:11 -0300
    Re: Natural Language Parser BGB <cr88192@hotmail.com> - 2015-10-02 17:53 -0500
  Re: Natural Language Parser Gene Wirchenko <genew@telus.net> - 2015-10-06 12:54 -0700

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