title: Utilizing lexical data from a Web-derived corpus to expand productive collocation knowledge

authors: Wu, Shaoqun

subjects: concordancing

abstract: Collocations are of great importance for second language learners, and a learner’s knowledge of them plays a key role in producing language fluently (Nation, 2001: 323). In this article we describe and evaluate an innovative system that uses a Web-derived corpus and digital library software to produce a vast concordance and present it in a way that helps students use collocations more effectively in their writing. Instead of live search we use an off-line corpus of short sequences of words, along with their frequencies. They are preprocessed, filtered, and organized into a searchable digital library collection containing 380 million five-word sequences drawn from a vocabulary of 145,000 words. Although the phrases are short, learners can browse more extended contexts because the system automatically locates sample sentences that contain them, either on the Web or in the British National Corpus. Two evaluations were conducted: an expert user tested the system to see if it could generate suitable alternatives for given text fragments, and students used it for a particular exercise. Both suggest that, even within the constraints of a limited study, the system could and did help students improve their writing.

text: Utilizing lexical data from a Web-derived corpus to expand productive collocation knowledge Collocations are of great importance for second language learners, and a learner’s knowledge of them plays a key role in producing language fluently (Nation, 2001: 323). In this article we describe and evaluate an innovative system that uses a Web-derived corpus and digital library software to produce a vast concordance and present it in a way that helps students use collocations more effectively in their writing. Instead of live search we use an off-line corpus of short sequences of words, along with their frequencies. They are preprocessed, filtered, and organized into a searchable digital library collection containing 380 million five-word sequences drawn from a vocabulary of 145,000 words. Although the phrases are short, learners can browse more extended contexts because the system automatically locates sample sentences that contain them, either on the Web or in the British National Corpus. Two evaluations were conducted: an expert user tested the system to see if it could generate suitable alternatives for given text fragments, and students used it for a particular exercise. Both suggest that, even within the constraints of a limited study, the system could and did help students improve their writing.

year: 2010

title: Applying machine learning to subject classification and subject description for information retrieval

authors: Cunningham, Sally Jo

subjects: computer science

abstract: This paper describes an experiment in applying standard supervised machine learning algorithms (C4.5 and Induct) to the problem of developing subject classification rules for documents. These algorithms are found to produce surprisingly concise models of document classifications. While the models are highly accurate on the training sets, evaluation over test sets or through cross-validation shows a significant decrease in classification accuracy. Given the difficult nature of the experimental task, however, the results of this investigation are promising and merit further study. An additional algorithm, 1R, is shown to be highly effective in generating lists of candidate terms for subject descriptions.

text: Applying machine learning to subject classification and subject description for information retrieval This paper describes an experiment in applying standard supervised machine learning algorithms (C4.5 and Induct) to the problem of developing subject classification rules for documents. These algorithms are found to produce surprisingly concise models of document classifications. While the models are highly accurate on the training sets, evaluation over test sets or through cross-validation shows a significant decrease in classification accuracy. Given the difficult nature of the experimental task, however, the results of this investigation are promising and merit further study. An additional algorithm, 1R, is shown to be highly effective in generating lists of candidate terms for subject descriptions.

year: 1995-06

title: Portfolio of compositions

authors: Hoadley, Benjamin Russell

subjects: New Zealand composition

abstract: The music in this portfolio of original compositions is steeped in the Western tradition of tonal music. The pieces were written while also pursuing a professional career as a bassoonist touring internationally and performing a wide variety of western art music, from Renaissance to contemporary. I have responded to these influences consciously and unconsciously in my music. The overarching focus of this composition portfolio is to provide an answer to the question — to what extent do musical influences impact on the compositions of an international touring performer?

Underpinning the portfolio is the fact that the pieces were all written in New Zealand during periods of intense reflection and study. While I am constantly collecting ideas and inspiration for my music while travelling, I consolidate and realise these ideas only when I am home.

I identify with being a New Zealand composer, with cosmopolitan influences on my music reflecting the global influences on New Zealand’s culture and art. Working closely with composers performing their music has also informed my composition. I mention Gillian Whitehead in particular, whose music I have performed widely.

The two outer pieces in the portfolio, Huia and Manaia 4 are the most directly associated with New Zealand in their subject matter. Other pieces have foreign themes, from my nocturnal impressions of New York in Night Music to the Ancient Greece of Ostrakon to the West African poetry of Four Songs.

All of the pieces were written for professional musicians to perform, including the Auckland Philharmonia Orchestra and the Sydney Omega Ensemble. Having these outstanding performers in mind while writing, and interacting with these musicians during the composition process, has informed my writing.

text: Portfolio of compositions The music in this portfolio of original compositions is steeped in the Western tradition of tonal music. The pieces were written while also pursuing a professional career as a bassoonist touring internationally and performing a wide variety of western art music, from Renaissance to contemporary. I have responded to these influences consciously and unconsciously in my music. The overarching focus of this composition portfolio is to provide an answer to the question — to what extent do musical influences impact on the compositions of an international touring performer?

Underpinning the portfolio is the fact that the pieces were all written in New Zealand during periods of intense reflection and study. While I am constantly collecting ideas and inspiration for my music while travelling, I consolidate and realise these ideas only when I am home.

I identify with being a New Zealand composer, with cosmopolitan influences on my music reflecting the global influences on New Zealand’s culture and art. Working closely with composers performing their music has also informed my composition. I mention Gillian Whitehead in particular, whose music I have performed widely.

The two outer pieces in the portfolio, Huia and Manaia 4 are the most directly associated with New Zealand in their subject matter. Other pieces have foreign themes, from my nocturnal impressions of New York in Night Music to the Ancient Greece of Ostrakon to the West African poetry of Four Songs.

All of the pieces were written for professional musicians to perform, including the Auckland Philharmonia Orchestra and the Sydney Omega Ensemble. Having these outstanding performers in mind while writing, and interacting with these musicians during the composition process, has informed my writing.

year: 2016