Search results

1 – 6 of 6
Article
Publication date: 8 July 2010

Fidelia Ibekwe‐SanJuan

The object of this study is to develop methods for automatically annotating the argumentative role of sentences in scientific abstracts. Working from Medline abstracts, sentences…

Abstract

Purpose

The object of this study is to develop methods for automatically annotating the argumentative role of sentences in scientific abstracts. Working from Medline abstracts, sentences were classified into four major argumentative roles: objective, method, result, and conclusion. The idea is that, if the role of each sentence can be marked up, then these metadata can be used during information retrieval to seek particular types of information such as novelty, conclusions, methodologies, aims/goals of a scientific piece of work.

Design/methodology/approach

Two approaches were tested: linguistic cues and positional heuristics. Linguistic cues are lexico‐syntactic patterns modelled as regular expressions implemented in a linguistic parser. Positional heuristics make use of the relative position of a sentence in the abstract to deduce its argumentative class.

Findings

The experiments showed that positional heuristics attained a much higher degree of accuracy on Medline abstracts with an F‐score of 64 per cent, whereas the linguistic cues only attained an F‐score of 12 per cent. This is mostly because sentences from different argumentative roles are not always announced by surface linguistic cues.

Research limitations/implications

A limitation to the study was the inability to test other methods to perform this task such as machine learning techniques which have been reported to perform better on Medline abstracts. Also, to compare the results of the study with earlier studies using Medline abstracts, the different argumentative roles present in Medline had to be mapped on to four major argumentative roles. This may have favourably biased the performance of the sentence classification by positional heuristics.

Originality/value

To the best of one's knowledge, this study presents the first instance of evaluating linguistic cues and positional heuristics on the same corpus.

Details

Aslib Proceedings, vol. 62 no. 4/5
Type: Research Article
ISSN: 0001-253X

Keywords

Article
Publication date: 1 March 2006

Fidelia Ibekwe‐SanJuan

To propose a comprehensive and semi‐automatic method for constructing or updating knowledge organization tools such as thesauri.

1624

Abstract

Purpose

To propose a comprehensive and semi‐automatic method for constructing or updating knowledge organization tools such as thesauri.

Design/methodology/approach

The paper proposes a comprehensive methodology for thesaurus construction and maintenance combining shallow NLP with a clustering algorithm and an information visualization interface. The resulting system TermWatch, extracts terms from a text collection, mines semantic relations between them using complementary linguistic approaches and clusters terms using these semantic relations. The clusters are mapped onto a 2D using an integrated visualization tool.

Findings

The clusters formed exhibit the different relations necessary to populate a thesaurus or ontology: synonymy, generic/specific and relatedness. The clusters represent, for a given term, its closest neighbours in terms of semantic relations.

Practical implications

This could change the way in which information professionals (librarians and documentalists) undertake knowledge organization tasks. TermWatch can be useful either as a starting point for grasping the conceptual organization of knowledge in a huge text collection without having to read the texts, then actually serving as a suggestive tool for populating different hierarchies of a thesaurus or an ontology because its clusters are based on semantic relations.

Originality/value

This lies in several points: combined use of linguistic relations with an adapted clustering algorithm, which is scalable and can handle sparse data. The paper proposes a comprehensive approach to semantic relations acquisition whereas existing studies often use one or two approaches. The domain knowledge maps produced by the system represents an added advantage over existing approaches to automatic thesaurus construction in that clusters are formed using semantic relations between domain terms. Thus while offering a meaningful synthesis of the information contained in the original corpus through clustering, the results can be used for knowledge organization tasks (thesaurus building and ontology population) The system also constitutes a platform for performing several knowledge‐oriented tasks like science and technology watch, textmining, query refinement.

Details

Journal of Documentation, vol. 62 no. 2
Type: Research Article
ISSN: 0022-0418

Keywords

Open Access
Article
Publication date: 4 July 2023

Joacim Hansson

In this article, the author discusses works from the French Documentation Movement in the 1940s and 1950s with regard to how it formulates bibliographic classification systems as…

Abstract

Purpose

In this article, the author discusses works from the French Documentation Movement in the 1940s and 1950s with regard to how it formulates bibliographic classification systems as documents. Significant writings by Suzanne Briet, Éric de Grolier and Robert Pagès are analyzed in the light of current document-theoretical concepts and discussions.

Design/methodology/approach

Conceptual analysis.

Findings

The French Documentation Movement provided a rich intellectual environment in the late 1940s and early 1950s, resulting in original works on documents and the ways these may be represented bibliographically. These works display a variety of approaches from object-oriented description to notational concept-synthesis, and definitions of classification systems as isomorph documents at the center of politically informed critique of modern society.

Originality/value

The article brings together historical and conceptual elements in the analysis which have not previously been combined in Library and Information Science literature. In the analysis, the article discusses significant contributions to classification and document theory that hitherto have eluded attention from the wider international Library and Information Science research community. Through this, the article contributes to the currently ongoing conceptual discussion on documents and documentality.

Details

Journal of Documentation, vol. 80 no. 3
Type: Research Article
ISSN: 0022-0418

Keywords

Article
Publication date: 12 September 2016

Boris Bosancic

The purpose of this paper is to propose an appropriate symbolic representation, as well as its metaphorical interpretation, to illustrate the special role of information in the…

3041

Abstract

Purpose

The purpose of this paper is to propose an appropriate symbolic representation, as well as its metaphorical interpretation, to illustrate the special role of information in the knowledge acquisition process.

Design/methodology/approach

Besides the literature review, this is a speculative study based on a symbolic and metaphorical point of view.

Findings

The proposed symbolic representation was derived from the conceptual designation of information “as a flow” and, accordingly, by the corresponding redrawing of the data-information-knowledge-wisdom (DIKW) pyramid. The knowledge acquisition process is symbolically represented by the growth of a “tree of knowledge” which is planted on a “data earth,” filled with “information sap” and lit by the rays of the “sun of the mind,” a new symbol of the concept of wisdom in the DIKW model. As indicated, a key concept of this metaphorical interpretation is the role of “information sap” which rises from the roots of the “tree of knowledge” to the top of the tree and it is recognized as an invisible link between “world of data” and “world of knowledge.” This concept is also proposed as a new symbolic representation of the DIKW model.

Originality/value

On the basis of specific symbolic-metaphorical representation, this paper provides a relatively new concept of information which may help bridge observed gaps in the understanding of information in various scientific fields, as well as in its understanding as an objective or subjective phenomenon.

Details

Journal of Documentation, vol. 72 no. 5
Type: Research Article
ISSN: 0022-0418

Keywords

Content available
Article
Publication date: 10 August 2010

217

Abstract

Details

Library Hi Tech News, vol. 27 no. 6/7
Type: Research Article
ISSN: 0741-9058

Article
Publication date: 26 June 2023

Fidelia Ibekwe

Celebrate Michael Buckland's impressive legacy to LIS by showing his humanity, generosity and versatility.

Abstract

Purpose

Celebrate Michael Buckland's impressive legacy to LIS by showing his humanity, generosity and versatility.

Design/methodology/approach

This article is walk through a scientific career in LIS. Through personal anecdotes and life history and building upon Michael Buckland's legacy, it summarises the author’s own work seen through the prism of her interactions with Buckland, leading to scholarly contributions articulating significant statements about the field of LIS as well as pointers to past relevant publications.

Findings

Michael Buckland has a unique way of putting an end to thorny LIS issues as well as being a documentator extraordinaire.

Originality/value

It is a personal account, as such cannot be evaluated through the classical norms of empirical research as there is no ground truth. This account shows how chance encounters with fellow scholars can have a lasting influence on one's academic career as well as wider impact in a field.

Details

Journal of Documentation, vol. 80 no. 3
Type: Research Article
ISSN: 0022-0418

Keywords

1 – 6 of 6