Modelling lexical databases with formal concept analysis.

This paper provides guidelines and examples for visualising lexical relations using Formal Concept Analysis. Relations in lexical databases often form trees, imperfect trees or poly-hierarchies which can be embedded into concept lattices. Many-to-many relations can be represented as concept lattices where the values from one domain are used as the formal objects and the values of the other domain as formal attributes. This paper further discusses algorithms for selecting meaningful subsets of lexical databases, the representation of complex relational structures in lexical databases and the use of lattices as basemaps for other lexical relations

Colour in English: from metonymy to metaphor

Colour words abound with figurative meanings, expressing much more than visual signals. Some of these figurative properties are well known; in English, for example, black is associated with EVIL and blue with DEPRESSION. Colours themselves are also described in metaphorical terms using lexis from other domains of experience, such as when we talk of deep blue, drawing on the domain of spatial position. Both metaphor and colour are of central concern to semantic theory; moreover, colour is recognised as a highly productive metaphoric field. Despite this, comparatively few works have dealt with these topics in unison, and even those few have tended to focus on Basic Colour Terms (BCTs) rather than including non-BCTs. This thesis addresses the need for an integrated study of both BCTs and non-BCTs, and provides an overview of metaphor and metonymy within the semantic area of colour. Conducted as part of the Mapping Metaphor project, this research uses the unique data source of the Historical Thesaurus of English (HT) to identify areas of meaning that share vocabulary with colour and thus point to figurative uses. The lexicographic evidence is then compared to current language use, found in the British National Corpus (BNC) and the Corpus of Contemporary American (COCA), to test for currency and further developments or changes in meaning. First, terms for saturation, tone and brightness are discussed. This lexis often functions as hue modifiers and is found to transfer into COLOUR from areas such as LIFE, EMOTION, TRUTH and MORALITY. The evidence for cross-modal links between COLOUR with SOUND, TOUCH and DIMENSION is then presented. Each BCT is discussed in turn, along with a selection of non-BCTs, where it is revealed how frequently hue terms engage in figurative meanings. This includes the secondary BCTs, with the only exception being orange, and a number of non-BCTs. All of the evidence discussed confirms that figurative uses of colour originate through a process of metonymy, although these are often extended into metaphor

Creating large semantic lexical resources for the Finnish language

Finnish belongs into the Finno-Ugric language family, and it is spoken by the vast majority of the people living in Finland. The motivation for this thesis is to contribute to the development of a semantic tagger for Finnish. This tool is a parallel of the English Semantic Tagger which has been developed at the University Centre for Computer Corpus Research on Language (UCREL) at Lancaster University since the beginning of the 1990s and which has over the years proven to be a very powerful tool in automatic semantic analysis of English spoken and written data. The English Semantic Tagger has various successful applications in the fields of natural language processing and corpus linguistics, and new application areas emerge all the time. The semantic lexical resources that I have created in this thesis provide the knowledge base for the Finnish Semantic Tagger. My main contributions are the lexical resources themselves, along with a set of methods and guidelines for their creation and expansion as a general language resource and as tailored for domain-specific applications. Furthermore, I propose and carry out several methods for evaluating semantic lexical resources. In addition to the English Semantic Tagger, which was developed first, and the Finnish Semantic Tagger second, equivalent semantic taggers have now been developed for Czech, Chinese, Dutch, French, Italian, Malay, Portuguese, Russian, Spanish, Urdu, and Welsh. All these semantic taggers taken together form a program framework called the UCREL Semantic Analysis System (USAS) which enables the development of not only monolingual but also various types of multilingual applications. Large-scale semantic lexical resources designed for Finnish using semantic fields as the organizing principle have not been attempted previously. Thus, the Finnish semantic lexicons created in this thesis are a unique and novel resource. The lexical coverage on the test corpora containing general modern standard Finnish, which has been the focus of the lexicon development, ranges from 94.58% to 97.91%. However, the results are also very promising in the analysis of domain-specific text (95.36%), older Finnish text (92.11–93.05%), and Internet discussions (91.97–94.14%). The results of the evaluation of lexical coverage are comparable to the results obtained with the English equivalents and thus indicate that the Finnish semantic lexical resources indeed cover the majority of core Finnish vocabulary

Technology 2003: The Fourth National Technology Transfer Conference and Exposition, volume 2

Proceedings from symposia of the Technology 2003 Conference and Exposition, Dec. 7-9, 1993, Anaheim, CA, are presented. Volume 2 features papers on artificial intelligence, CAD&E, computer hardware, computer software, information management, photonics, robotics, test and measurement, video and imaging, and virtual reality/simulation

Exploring Storybook Illustrations in Learning Word Meanings

This study explores storybook illustrations in learning word meanings among English learners in a university intensive language program. The impact of children’s literature on the comprehension and vocabulary development of second language children is well-documented. However, the use of the literature with adults still needs to be researched. Therefore, a mixed-method study was designed (1) to investigate whether readers who read an authentic illustrated story differed from those who read the same story without illustrations; and (2) to learn more about the readers’ process of learning words from storybook illustrations. Results suggest that illustrations play an important role in both comprehending the text and learning individual words, however issues related to the accessibility of the text and readers’ ability to use context should also be taken into consideration. The findings support prior research that the benefits of learning from context take time to become robust. The study suggests that illustrated storybooks provide a rich context for adults to infer word meanings and recommends children’s literature as an alternative source of reading in programs serving adult English learners

Exploring Storybook Illustrations in Learning Word Meanings

This study explores storybook illustrations in learning word meanings among English learners in a university intensive language program. The impact of children’s literature on the comprehension and vocabulary development of second language children is well-documented. However, the use of the literature with adults still needs to be researched. Therefore, a mixed-method study was designed (1) to investigate whether readers who read an authentic illustrated story differed from those who read the same story without illustrations; and (2) to learn more about the readers’ process of learning words from storybook illustrations. Results suggest that illustrations play an important role in both comprehending the text and learning individual words, however issues related to the accessibility of the text and readers’ ability to use context should also be taken into consideration. The findings support prior research that the benefits of learning from context take time to become robust. The study suggests that illustrated storybooks provide a rich context for adults to infer word meanings and recommends children’s literature as an alternative source of reading in programs serving adult English learners

Information science and the configuration of meaningful information

This investigation addresses different viewpoints regarding the configuration of meaningful information in the context of different environments, such as the information society, ontological milieu, interpretation and representation. It is important to explore options in terms of which the configuration of meaning can be pursued. Information science should be seriously considered as an explorer and configurer of meaningful information. For information science to become such an explorer, the discipline needs to be approached not as yet another science to involve and concern itself with information and its related aspects, but as a special kind of science. This investigation proposes that it should be seen and developed as an interscience. Disciplinary boundaries do not imply that they are fixed and these boundaries, especially of an interscience, can be approached as constantly moving and changing. This allows for interchange between disciplines and continued growth without losing the unique characteristics of information science.Information ScienceM.A. (Information Science