computational models of language acquisition

... valuable resource for investigators interested in computational models of natural language acquisition. 2 The Language Domain Database The focus of the language domain database, (hereafter LDD), ... efficiency of parameter-setting acquisition models. We have recently run experiments of seven parameter-setting (P&P) models of acquisition on the domain. What follows is a brief discussion of ... Culicover, P. (1980) Formal Principles of Language Acquisition. Cambridge MA: MIT Press. mars and derivations that may be used to test computational models of syntax acquisition from widely divergent...

Ngày tải lên: 08/03/2014, 04:22

... ignored in the for- mal studies of language acquisition. In the rest of this section, I show that if this condition is taken se- riously, previous models of language acquisition have difficulties ... Institute of Technology Cambridge, MA 02139 charles@ai, mit. edu Abstract This paper argues that developmental patterns in child language be taken seriously in computational models of language acquisition, ... population of grammars Learning, including language acquisition, can be characterized as a sequence of states in which the learner moves from one state to another. Transfor- mational models of language...

Ngày tải lên: 20/02/2014, 19:20

... intersection of two matricible languages is again a matricible language. Proof. This is a direct consequence of the con- siderations in Section 6 together with the observa- tion, that the new set of acceptance ... (non-context-free) language {a m b m c m | m > 0}. The following properties of matrix grammars and matricible language are straightforward. Proposition 2 All languages characterized by a set of linear ... underlying word space models; e.g., the models of Widdows (2008) and Giesbrecht (2009) feature dimensionality reduction while that of Mitchell and Lapata (2008) does not. In the light of these findings,...

Ngày tải lên: 07/03/2014, 22:20

... rule of thirds, we utilize the region of interest (ROI) extracted as described above. Similarly to [8], our measure of the rule of thirds (f 9 ) is the minimum distance of the centroid of the ... videos enable the generation and archival of unprecedented amounts of personal multi- media content. For eg., as of May 2009, about 20 hours of video footage – most of it user-generated – were uploaded ... in the center of a 17-inch LCD screen with a refresh rate of 60 Hz and a resolution of 1024 ì 768 pixels, on a mid-gray background, and at a viewing distance of 5 times the height of the videos...

Ngày tải lên: 16/03/2014, 18:20

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Ngày tải lên: 07/09/2013, 13:06

... true of me”; (2) “Usually not true of me”, (3) “Somewhat true of me”, (4) “Usually true of me” or (5) “Always true of me”. For the convenience of the respondents and the researcher’s purpose of ... improve competence in a second language . Therefore, the language learner capable of using a wide variety of language learning strategies appropriately can improve his language skills in a better ... statement is (1)“Never true of me”; (2)“Usually not true of me”, (3) “Somewhat true of me”, (4) “Usually true of me” or (5) “Always true of me”. The whole set of questionnaire was translated...

Ngày tải lên: 29/01/2014, 00:23

... of a variety of language models trained from text or speech corpora of vari- ous genres and sizes. The largest available language models are based on written text: we investigate the effect of ... text language models as opposed to language models based on speech transcripts. Sec- ond, we develop a new set of reranker features ex- plicitly designed to capture important properties of speech ... set of reranker features, which consisted of features for all of the language models plus the extended (i.e., indicator) features, and used this model to analyse the test data. The f- score of...

Ngày tải lên: 20/02/2014, 04:20

... Proceedings of the 12th Conference of the European Chapter of the ACL, pages 157–165, Athens, Greece, 30 March – 3 April 2009. c 2009 Association for Computational Linguistics Web augmentation of language ... size of the web mixture LM is limited to the size of the baseline in-domain LM. 1 Introduction An automatic speech recognition (ASR) system consists of acoustic models of speech sounds and of a ... Kneser- Ney smoothed n-gram models. IEEE Transac- tions on Audio, Speech and Language Processing, 15(5):1617–1624. A. Stolcke. 1998. Entropy-based pruning of backoff language models. In Proc. DARPA...

Ngày tải lên: 22/02/2014, 02:20

... Based n-gram Models of Natural Language& quot;. Computational Linguistics, 18(4):467-480. C. Chang and C. Chen. 1996. "Application Is- sues of SA-class Bigram Language Models& quot;. ... Acquisi- tion of Language Models for Speech Recog- nition". Master's thesis, Massachusetts Insti- tute of Technology. M. Meteer and J.R. Rohlicek. 1993. "Statis- tical Language ... "Scalable Trigram Backoff Language Models& quot;. Techni- cal Report CMU-CS-96-139, Carnegie Mellon University. S. Sneff. 1992. "TINA: A natural language sys- tem for spoken language applications"....

Ngày tải lên: 08/03/2014, 05:21

... states of each of the two models are unseen and must be inferred from the words. The problem of language understanding, then, is to recover the most likely meaning structure given a sequence of ... these techniques are capable of relatively high levels of performance. While hidden understanding models are based primarily on the concepts of hidden Markov models, we have also shown their ... techniques. Empirical results, including the results of an ARPA 31 HIDDEN UNDERSTANDING MODELS OF NATURAL LANGUAGE Scott Miller College of Computer Science Northeastern University Boston,...

Ngày tải lên: 08/03/2014, 07:20

... psychological consequences of our computational analysis of generation. The following are a few of the questions that mutt be addressed in the _r~e__arch on planning: o What is the size of the planning ... pr~eedings of the 23rd Annual Meeting of the Association for Computational Linguistics, University of Chicago. McDonald D. & Pustejovsky J. (1985b) "Description-Direeted Natural Language ... 189 A Computational Theory of Prose Style for Natural Language Generation David D. McDonald and James D. Pnstejovsky Department of Computer and Information Science University of M~,=.~chnsetts...

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