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* 1Research and development
* 2Software
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History of natural language processing
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From Wikipedia, the free encyclopedia
This article needs to be updated. Please help update this article to
reflect recent events or newly available information. (April 2023)
Aspect of history
The history of natural language processing describes the advances of
natural language processing (Outline of natural language processing).
There is some overlap with the history of machine translation, the
history of speech recognition, and the history of artificial
intelligence.
Research and development[edit]
The history of machine translation dates back to the seventeenth
century, when philosophers such as Leibniz and Descartes put forward
proposals for codes which would relate words between languages. All of
these proposals remained theoretical, and none resulted in the
development of an actual machine.
The first patents for "translating machines" were applied for in the
mid-1930s. One proposal, by Georges Artsrouni was simply an automatic
bilingual dictionary using paper tape. The other proposal, by Peter
Troyanskii, a Russian, was more detailed. It included both the
bilingual dictionary, and a method for dealing with grammatical roles
between languages, based on Esperanto.
In 1950, Alan Turing published his famous article "Computing Machinery
and Intelligence" which proposed what is now called the Turing test as
a criterion of intelligence. This criterion depends on the ability of a
computer program to impersonate a human in a real-time written
conversation with a human judge, sufficiently well that the judge is
unable to distinguish reliably — on the basis of the conversational
content alone — between the program and a real human.
In 1957, Noam Chomsky’s Syntactic Structures revolutionized Linguistics
with 'universal grammar', a rule based system of syntactic
structures.^[1]
The Georgetown experiment in 1954 involved fully automatic translation
of more than sixty Russian sentences into English. The authors claimed
that within three or five years, machine translation would be a solved
problem.^[2] However, real progress was much slower, and after the
ALPAC report in 1966, which found that ten years long research had
failed to fulfill the expectations, funding for machine translation was
dramatically reduced. Little further research in machine translation
was conducted until the late 1980s, when the first statistical machine
translation systems were developed.
Some notably successful NLP systems developed in the 1960s were SHRDLU,
a natural language system working in restricted "blocks worlds" with
restricted vocabularies.
In 1969 Roger Schank introduced the conceptual dependency theory for
natural language understanding.^[3] This model, partially influenced by
the work of Sydney Lamb, was extensively used by Schank's students at
Yale University, such as Robert Wilensky, Wendy Lehnert, and Janet
Kolodner.
In 1970, William A. Woods introduced the augmented transition network
(ATN) to represent natural language input.^[4] Instead of phrase
structure rules ATNs used an equivalent set of finite state automata
that were called recursively. ATNs and their more general format called
"generalized ATNs" continued to be used for a number of years. During
the 1970s many programmers began to write 'conceptual ontologies',
which structured real-world information into computer-understandable
data. Examples are MARGIE (Schank, 1975), SAM (Cullingford, 1978), PAM
(Wilensky, 1978), TaleSpin (Meehan, 1976), QUALM (Lehnert, 1977),
Politics (Carbonell, 1979), and Plot Units (Lehnert 1981). During this
time, many chatterbots were written including PARRY, Racter, and
Jabberwacky.
Up to the 1980s, most NLP systems were based on complex sets of
hand-written rules. Starting in the late 1980s, however, there was a
revolution in NLP with the introduction of machine learning algorithms
for language processing. This was due both to the steady increase in
computational power resulting from Moore's Law and the gradual
lessening of the dominance of Chomskyan theories of linguistics (e.g.
transformational grammar), whose theoretical underpinnings discouraged
the sort of corpus linguistics that underlies the machine-learning
approach to language processing.^[5] Some of the earliest-used machine
learning algorithms, such as decision trees, produced systems of hard
if-then rules similar to existing hand-written rules. Increasingly,
however, research has focused on statistical models, which make soft,
probabilistic decisions based on attaching real-valued weights to the
features making up the input data. The cache language models upon which
many speech recognition systems now rely are examples of such
statistical models. Such models are generally more robust when given
unfamiliar input, especially input that contains errors (as is very
common for real-world data), and produce more reliable results when
integrated into a larger system comprising multiple subtasks.
Many of the notable early successes occurred in the field of machine
translation, due especially to work at IBM Research, where successively
more complicated statistical models were developed. These systems were
able to take advantage of existing multilingual textual corpora that
had been produced by the Parliament of Canada and the European Union as
a result of laws calling for the translation of all governmental
proceedings into all official languages of the corresponding systems of
government. However, most other systems depended on corpora
specifically developed for the tasks implemented by these systems,
which was (and often continues to be) a major limitation in the success
of these systems. As a result, a great deal of research has gone into
methods of more effectively learning from limited amounts of data.
Recent research has increasingly focused on unsupervised and
semi-supervised learning algorithms. Such algorithms are able to learn
from data that has not been hand-annotated with the desired answers, or
using a combination of annotated and non-annotated data. Generally,
this task is much more difficult than supervised learning, and
typically produces less accurate results for a given amount of input
data. However, there is an enormous amount of non-annotated data
available (including, among other things, the entire content of the
World Wide Web), which can often make up for the inferior results.
Software[edit]
Software Year Creator Description Reference
Georgetown experiment 1954 Georgetown University and IBM involved fully
automatic translation of more than sixty Russian sentences into
English.
STUDENT 1964 Daniel Bobrow could solve high school algebra word
problems.^[6]
ELIZA 1964 Joseph Weizenbaum a simulation of a Rogerian
psychotherapist, rephrasing her response with a few grammar rules.^[7]
SHRDLU 1970 Terry Winograd a natural language system working in
restricted "blocks worlds" with restricted vocabularies, worked
extremely well
PARRY 1972 Kenneth Colby A chatterbot
KL-ONE 1974 Sondheimer et al. a knowledge representation system in the
tradition of semantic networks and frames; it is a frame language.
MARGIE 1975 Roger Schank
TaleSpin (software) 1976 Meehan
QUALM Lehnert
LIFER/LADDER 1978 Hendrix a natural language interface to a database of
information about US Navy ships.
SAM (software) 1978 Cullingford
PAM (software) 1978 Robert Wilensky
Politics (software) 1979 Carbonell
Plot Units (software) 1981 Lehnert
Jabberwacky 1982 Rollo Carpenter chatterbot with stated aim to
"simulate natural human chat in an interesting, entertaining and
humorous manner".
MUMBLE (software) 1982 McDonald
Racter 1983 William Chamberlain and Thomas Etter chatterbot that
generated English language prose at random.
MOPTRANS ^[8] 1984 Lytinen
KODIAK (software) 1986 Wilensky
Absity (software) 1987 Hirst
Dr. Sbaitso 1991 Creative Labs
Watson (artificial intelligence software) 2006 IBM A question answering
system that won the Jeopardy! contest, defeating the best human players
in February 2011.
Siri 2011 Apple A virtual assistant developed by Apple.
Cortana 2014 Microsoft A virtual assistant developed by Microsoft.
Amazon Alexa 2014 Amazon A virtual assistant developed by Amazon.
Google Assistant 2016 Google A virtual assistant developed by Google.
References[edit]
1. ^ "SEM1A5 - Part 1 - A brief history of NLP". Retrieved 2010-06-25.
2. ^ Hutchins, J. (2005)
3. ^ Roger Schank, 1969, A conceptual dependency parser for natural
language Proceedings of the 1969 conference on Computational
linguistics, Sång-Säby, Sweden, pages 1-3
4. ^ Woods, William A (1970). "Transition Network Grammars for Natural
Language Analysis". Communications of the ACM 13 (10): 591–606 [1]
5. ^ Chomskyan linguistics encourages the investigation of "corner
cases" that stress the limits of its theoretical models (comparable
to pathological phenomena in mathematics), typically created using
thought experiments, rather than the systematic investigation of
typical phenomena that occur in real-world data, as is the case in
corpus linguistics. The creation and use of such corpora of
real-world data is a fundamental part of machine-learning
algorithms for NLP. In addition, theoretical underpinnings of
Chomskyan linguistics such as the so-called "poverty of the
stimulus" argument entail that general learning algorithms, as are
typically used in machine learning, cannot be successful in
language processing. As a result, the Chomskyan paradigm
discouraged the application of such models to language processing.
6. ^ McCorduck 2004, p. 286, Crevier 1993, pp. 76−79, Russell & Norvig
2003, p. 19
7. ^ McCorduck 2004, pp. 291–296, Crevier 1993, pp. 134−139
8. ^ Janet L. Kolodner, Christopher K. Riesbeck; Experience, Memory,
and Reasoning; Psychology Press; 2014 reprint
Bibliography[edit]
*
Crevier, Daniel (1993). AI: The Tumultuous Search for Artificial
Intelligence. New York, NY: BasicBooks. ISBN 0-465-02997-3.
McCorduck, Pamela (2004), Machines Who Think (2nd ed.), Natick, MA:
A. K. Peters, Ltd., ISBN 978-1-56881-205-2, OCLC 52197627.
Russell, Stuart J.; Norvig, Peter (2003), Artificial Intelligence: A
Modern Approach (2nd ed.), Upper Saddle River, New Jersey: Prentice
Hall, ISBN 0-13-790395-2.
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