Synthesizing Noise-Tolerant Language Learners

نویسندگان

  • John Case
  • Sanjay Jain
  • Arun Sharma
چکیده

An index for an r.e. class of languages (by definition) generates a sequence of grammars defining the class. An index for an indexed family of languages (by definition) generates a sequence of decision procedures defining the family. F. Stephan’s model of noisy data is employed, in which, roughly, correct data crops up infinitely often, and incorrect data only finitely often. Studied, then, is the synthesis from indices for r.e. classes and for indexed families of languages of various kinds of noise-tolerant language-learners for the corresponding classes or families indexed. Many positive results, as well as some negative results, are presented regarding the existence of such synthesizers. The proofs of most of the positive results yield, as pleasant corollaries, strict subset-principle or tell-tale style characterizations for the noise-tolerant learnability of the corresponding classes or families indexed.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Synthesizing Learners Tolerating Computable Noisy Data

An index for an r.e. class of languages (by definition) generates a sequence of grammars defining the class. An index for an indexed family of recursive languages (by definition) generates a sequence of decision procedures defining the family. F. Stephan’s model of noisy data is employed, in which, roughly, correct data crops up infinitely often, and incorrect data only finitely often. In a com...

متن کامل

Introvert and Extrovert EFL Learners’ Willingness to Communicate and Ambiguity Tolerance

Abstract The researchers have been interested to explore the impact of personality traits on second or foreign language learning. The current study is an attempt to investigate whether there exists a statistically significant relationship between introvert and extrovert EFL learners’ willingness to communicate and ambiguity tolerance. To this end, a total of 150 EFL learners completed the Intro...

متن کامل

Factors affecting successful late learners' phonemic discrimination between /l/ and /r/ in English

The view “the earlier the better” (e.g., [10]) may be a myth in a foreign language instructional setting (e.g., [1]). To identify successful late learners, this study compares early and late learners studying English as a foreign language in the situation of classroom minimal exposure to English, focusing on the perception of English consonants ([l, r]) produced by different talkers with and wi...

متن کامل

Raspberry, not a car: context predictability and a phonological advantage in early and late learners’ processing of speech in noise

Second language learners perform worse than native speakers under adverse listening conditions, such as speech in noise (SPIN). No data are available on heritage language speakers' (early naturalistic interrupted learners') ability to perceive SPIN. The current study fills this gap and investigates the perception of Russian speech in multi-talker babble noise by the matched groups of high- and ...

متن کامل

Tolerating Computable Noisy

An index for an r.e. class of languages (by deenition) generates a sequence of grammars deening the class. An index for an indexed family of languages (by deenition) generates a sequence of decision procedures deening the family. F. Stephan's model of noisy data is employed, in which, roughly, correct data crops up innnitely often, and incorrect data only nitely often. In a completely computabl...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Theor. Comput. Sci.

دوره 261  شماره 

صفحات  -

تاریخ انتشار 1997