Search (60 results, page 1 of 3)

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Abstract

Discusses briefly the application of hypertext in library user training with particular reference to a specific hypertext based tutorial designed to teach library school students the basics knowledge of abstracts and abstracting process

Date

27. 1.1996 18:22:06

Source

Journal of education for library and information science. 36(1995) no.2, S.170-173

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Abstract

Reference librarians, who are thoroughly familiar with the purpose, scope and arrangement of abstract periodicals, are uniquely qualified for the task of writing abstracts. The procedures described here offer a relatively simple way for them to write acceptable abstracts from the outset. Although research is being conducted in the area of machine generated abstracts, there wll continue to be a role for human abstractors.

Source

Reference librarian. 1988, no.22, S.297-308

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Abstract

Structured abstracts are abstracts which include subheadings such as: background, aims, participants methods and results. These are rapidly replacing traditional abstracts in medical periodicals, but the number and detail of the subheadings used varies, and there is a range of different typographic settings. Reviews a number of studies designed to investigate readers' preferences for different typographic settings and layout. Over 400 readers took part in the study: students; postgraduates; research workers and academics in the social sciences. The most preferred version emerged from the last of 3 studies and 2 additional studies were then carried out to determine preferences for the overall position and layout of this most preferred version on a A4 page. The most preferred version for the setting of the subheadings are printed in bold capital letters

Source

Journal of information science. 22(1996) no.1, S.27-37

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Abstract

Considers the principles of indexing and the intellectual skills involved in order to determine what automatic indexing systems would be required in order to supplant or complement the human indexer. Good indexing requires: considerable prior knowledge of the literature; judgement as to what to index and what depth to index; reading skills; abstracting skills; and classification skills, Illustrates these features with a detailed description of abstracting and indexing processes involved in generating entries for the mechanical engineering database POWERLINK. Briefly assesses the possibility of replacing human indexers with specialist indexing software, with particular reference to the Object Analyzer from the InTEXT automatic indexing system and using the criteria described for human indexers. At present, it is unlikely that the automatic indexer will replace the human indexer, but when more primary texts are available in electronic form, it may be a useful productivity tool for dealing with large quantities of low grade texts (should they be wanted in the database)

Date

9. 2.1997 18:44:22

Source

Journal of librarianship and information science. 28(1996) no.4, S.217-225

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Abstract

Graph-based ranking algorithms have recently been proposed for single document summarizations and such algorithms evaluate the importance of a sentence by making use of the relationships between sentences in the document in a recursive way. In this paper, we investigate using other related or relevant documents to improve summarization of one single document based on the graph-based ranking algorithm. In addition to the within-document relationships between sentences in the specified document, the cross-document relationships between sentences in different documents are also taken into account in the proposed approach. We evaluate the performance of the proposed approach on DUC 2002 data with the ROUGE metric and results demonstrate that the cross-document relationships between sentences in different but related documents can significantly improve the performance of single document summarization.

Source

Research and advanced technology for digital libraries : 10th European conference, proceedings / ECDL 2006, Alicante, Spain, September 17 - 22, 2006

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Abstract

Reports results of 2 studies to determine if structured abstracts offer any advantage to users in terms of whether they are easier to search. In study 1, using a specially prepared electronic database of abstracts in either their original format or the structured format, 52 users were asked to find the answers to 2 questions for each of 8 abstracts in traditional format followed by 2 questions for each of 8 abstracts set in the structured format. Time and error data were recorded automatically. In study 2, using a printed database, 56 users were asked to to find 5 abstracts that reprted a particular kind of study and then find 5 more references that reported another kind of study. In study 1 users performed significantly faster and made fewer errors with structured abstracts but there were some unexplainable practice effects. In study 2, the users again performed significantly faster and made fewer errors with structured abstracts. However, there were asymmetrical transfer effects: users who responded first to the structured abstracts responded more quickly to the following traditional abstracts than did those users who responded first to the traditional abstracts. Nevertheless, the overall findings support the hypothesis that it is easier for user to search structured abstracts than it is to search traditional abstracts

Source

Journal of information science. 22(1996) no.5, S.349-356

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Abstract

Purpose - The aim of this paper is to systemize and improve the scientific status of studies on document abstracting. This is a diachronic, systematic study of document abstracting studies carried out from different perspectives and models (textual, psycholinguistic, social and communicative). Design/methodology/approach - A review of the perspectives and analysis proposals which are of interest to the various theoreticians of abstracting is carried out using a variety of techniques and approaches (cognitive, linguistic, communicative-social, didactic, etc.), each with different levels of theoretical and methodological abstraction and degrees of application. The most significant contributions of each are reviewed and highlighted, along with their limitations. Findings - It is found that the great challenge in abstracting is the systemization of models and conceptual apparatus, which open up this type of research to semiotic and socio-interactional perspectives. It is necessary to carry out suitable empirical research with operative designs and ad hoc measuring instruments which can measure the efficiency of the abstracting and the efficiency of a good abstract, while at the same time feeding back into the theoretical baggage of this type of study. Such research will have to explain and provide answers to all the elements and variables, which affect the realization and the reception of a quality abstract. Originality/value - The paper provides a small map of the studies on document abstracting. This shows how the conceptual and methodological framework has extended at the same time as the Science of Documentation has been evolving. All the models analysed - the communicative and interactional approach - are integrated in a new systematic framework.

Source

Journal of documentation. 66(2010) no.4, S.563-584

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Abstract

The need for criteria by which to judge the adequacy of an abstract is felt most strongly when evaluating machine-produced abstracts. In order to develop a set of criteria, a survey was conducted of the instructions prepared by various scientific publications as a guide to their abstracters in the preparation of copy. One-hundred-and-thirty sets of instructions were analyzed and compared as to their function, content, and form. It was concluded that, while differences in subject matter do not necessarily require different kinds of abstracts, there are significant variations between the informative and the indicative abstract. A set of criteria for the writing of an acceptable abstract of science literature was derived. The adequacy of these criteria is still to be validated, and the athors' plans for fututre research in this area are specified

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Abstract

The library and information science (LIS) literature on abstracting makes little mention about abstracting conducted in the corporate / business environment, whereas the business literature suggests that abstarcting is a very important component of business writing. Examines a variety of publications from LIS and business in order to compare and contrast their approaches to the following aspects of abstracting: definitions of abstracts; types of abstracts; purpose of abstracts; and writing of abstracts. Summarises the results of the examination which revealed a number of similarities, differences, and inadequacies in the ways in which both fields approach abstracting. Concludes that both fields need to develop more detailed guidelines concerning the cognitive process of abstracting and suggests improvements to the training af absractors based on these findings

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Source

Informatics 9: Meaning: the frontier of informatics: proceedings of a conference. Ed.: K.P. Jones

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Abstract

The indexing process consists of the comprehension of the document to be indexed, followed by the production of a set of index terms. Differences between academic indexing and back-of-the-book indexing are discussed. Text comprehension is a branch of human information processing, and it is argued that the model of text comprehension and production debeloped by van Dijk and Kintsch can form the basis for a cognitive process model of indexing. Strategies for testing such a model are suggested

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Abstract

An abstract itself is a text which is subjected to general and specific conditions of text production. The goal - namely the forming of the abstract as a text - controls the whole process of abstracting. This goal oriented view contrasts to most approaches in this domain which are source text oriented. Production strategies are described in terms of text structure building processes which are reconstructed with methods of modelling in the area of text linguistics and computational linguistics. This leads to a close relationship between thr representation of the model and the resulting text. Gives examples in which authentic material of abstracts is analyzed according to the model. The model itself integrates 3 text levels which are combined and represented in terms of the writer's activities

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Abstract

Previous research assessing the effectiveness of structured abstracts has been limited in two respects. First, when comparing structured abstracts with traditional ones, investigators usually have rewritten the original abstracts, and thus confounded changes in the layout with changes in both the wording and the content of the text. Second, investigators have not always included the title of the article together with the abstract when asking participants to judge the quality of the abstracts, yet titles alert readers to the meaning of the materials that follow. The aim of this research was to redress these limitations. Three studies were carried out. Four versions of each of four abstracts were prepared. These versions consisted of structured/traditional abstracts matched in content, with and without titles. In Study 1, 64 undergraduates each rated one of these abstracts on six separate rating scales. In Study 2, 225 academics and research workers rated the abstracts electronically, and in Study 3, 252 information scientists did likewise. In Studies 1 and 3, the respondents rated the structured abstracts significantly more favorably than they did the traditional ones, but the presence or absence of titles had no effect on their judgments. In Study 2, no main effects were observed for structure or for titles. The layout of the text, together with the subheadings, contributed to the higher ratings of effectiveness for structured abstracts, but the presence or absence of titles had no clear effects in these experimental studies. It is likely that this spatial organization, together with the greater amount of information normally provided in structured abstracts, explains why structured abstracts are generally judged to be superior to traditional ones.

Source

Journal of the American Society for Information Science and Technology. 58(2007) no.14, S.2335-2340

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Abstract

A survey of abstracting policies by producers of bibliographical databases examined abstracting guidelines which aim to enhance free- text retrieval. Of the 123 database policies examined, fifty-seven (46 per cent) included such instructions. Editors consider contents of abstracts and their language as a primary factor in retrieval enhancement. Most recommend that once abstractors decide which concepts to include in abstracts and in which form to represent them, these terms should be co-ordinated with index terms assigned from a controlled vocabulary. Guidelines about the type of abstracts, i.e., informative or indicative, and about their length are not affected by the capability of free-text retrieval

Source

Journal of documentation. 42(1986), S.11-21

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Abstract

Presents a structured abstract of the actual article. Outlines the debate on the value of structured abstracts and describes a research project into their use, which investigated records of cardiovascular disease downloaded from MEDLINE and tested against clinical questions derived from a survey of CD-ROM use in 3 health science libraries. It was found that structured abstracts improve precision at the expense of recall and place heavier demands on the skills of selecting fields to search within the abstract. Indicates directions for further research

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Abstract

Reports results of a study to consider whether or not structured abstracts can be used efectively in non medical science periodicals. Reviews a selection of studies on structured abstracts from the medical and psychological literature, presents examples of structured abstracts published in non medical science periodicals and considers how original abstracts might be written in a structured form for these periodicals. Concludes that, in light of these example studies, editors of these periodicals should consider the value of adopting structured abstracts

Source

Journal of information science. 24(1998) no.5, S.359-364

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Abstract

Compares formats and linguistic devices of German abstracts and their English equivalents, written by German medical scholars to English native speakers. The source is 20 abstracts taken from German medical journals representing different degrees of specialism. The analysis includes: the overall length of articles/abstracts; the representation/arrangement of sections; the linguistic devices. Results show no correlation between the length of articles and the length of abstracts. In contrast to native speaking author abstracts, 'background information' predominated in the structure of the studied German non-native speaker abstracts, whereas 'purpose of study' and 'conclusions' were not clearly stated. In linguistic terms, the German abstracts frequently contained lexical hegdes, complex and enumerating sentence structure; passive voice and post tense as well as various types of linking structures

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Abstract

Reports on one area of research in an Electronic Libraries Programme (eLib) MODELS (MOving to Distributed Environments for Library Services) supporting study in 3 investigative areas: examination of current database producers' guidelines for their abstract writers; a brief survey of abstracts in some traditional online databases; and a detailed survey of abstracts from 3 types of electronic database (print sourced online databases, Internet subject trees or directories, and Internet gateways). Examination of database producers' guidelines, reported here, gave a clear view of the intentions behind professionally produced traditional (printed index based) database abstracts and provided a benchmark against which to judge the conclusions of the larger investigations into abstract style, readability and content

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Abstract

Presents a theoretical model, based on the Flower/Hayes model of expository writing, of the process involved in content analysis for abstracting and indexing.

Source

Information, knowledge, evolution. Proceedings of the 44th FID Congress, Helsinki, 28.8.-1.9.1988. Ed. by S. Koshiala and R. Launo

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Abstract

This paper is a review of genre analysis of author abstracts carried out in the area of English for Special Purposes (ESP) since 1990. Given the descriptive character of such analysis, it can be valuable for Information Science (IS), as it provides a picture of the variation in author abstracts, depending an the discipline, culture and language of the author, and the envisaged context. The authors claim that such knowledge can be useful for information professionals who need to revise author abstracts, or use them for other activities in the organization of knowledge, such as subject analysis and control of vocabulary. With this purpose in mind, we summarize various findings of ESP research. We describe how abstracts vary in structure, content and discourse, and how linguists explain such variations. Other factors taken into account are the stylistic and discoursal features of the abstract, lexical choices, and the possible sources of blas. In conclusion, we show how such findings can have practical and theoretical implications for IS.