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The thesaurus is a dynamic instrument formed by a set of terms linked together by semantic relationships. The instrument models a specific domain of knowledge that is also dynamic. Therefore, it must periodically go through an evaluation process. Thesaurus evaluation, carried out using specific methodologies, aims to collect and gather useful data for analysis and decision-making, resolution and solution of problems related to thesauruses. It aims to present the results of a search strategy that aimed to map thesaurus evaluation methodologies in national and international literature. It is configured as a research with a qualitative approach, of an applied nature, with an exploratory objective and bibliographical research regarding the procedures. In total, seventeen studies were found that present thesaurus evaluation methodologies. The studies were summarized in a table and analyzed according to five categories. They are: Methodology, Authorship, Year of Publication, Country of Publication, Documentary typology. The construction of theoretical-methodological foundations regarding the topic of thesaurus evaluation, and the gathering and presentation of this information in a synthetic and organized way can contribute to reflecting on how the topic has been studied in Information Science and contribute to the carrying out of future studies. [ABSTRACT FROM AUTHOR]

Objective. The objective of this artcicle is to evaluate two terminology extraction techniques: manual terminology extraction and automated terminology extraction, to assess the effectiveness of each process in obtaining useful terms for the construction of a library thesaurus. Method. The methodology used was exploratory-quantitative and was based on two terminology extraction experiments: (1) manual extraction and (2) automated extraction. The manual terminology extraction process was carried out by a professional with multidisciplinary academic training, while the automated terminology extraction process was carried out using WordStat program. Both, manual and automated extraction processes were based on the same corpus, consisting of 283,585 words corresponding to 59 articles about library and information science that were published in the journal Investigación Bibliotecológica during the years 2019 and 2020. Results. The results show that: manual terminology extraction provided excellent results, 82% of the terms were useful and were established as viable descriptors for the thesaurus. In comparison, automated extraction was a time-consuming process, but only 12% of the terms proved useful and were established as viable descriptors for the thesaurus. Conclusions. It was found that each of the terminology retrieval techniques was useful but presented differences. While manual extraction required a high investment of human resources and time, its results also showed high effectiveness. In contrast, automated extraction required less human investment and was fast in time, but its results in this experiment were less accurate and useful. It is concluded that experimentation with various terminology extraction techniques is important, associated with the terminology base that is the cornerstone of any controlled vocabulary. [ABSTRACT FROM AUTHOR]

It discusses the concepts of organization and representation of knowledge as fundamentals for the understanding of thesauri and ontologies took as modalities of knowledge organization systems. The analysis of the complementarity relationships between the two instruments is necessary to reaffirm the conception that the technological and, above all, the categorial aspect brings them closer instead of isolating them. In subordinating the concepts of thesauri and ontologies to the broader concept of knowledge organization systems, it reflects on some of its theoretical and applied implications. Such reflections are guided by the way each instrument understands associative conceptual relationships. It is concluded that the technological apparatus used to characterize the concepts and their relationships in the ontologies contributes to the construction of more sophisticated thesauri from when considering the need to make explicit the concepts and the conceptual relationships that the instruments aim to establish. In another direction and in a complementary way, the categorial and faceted analysis model used in the construction of thesauri also contributes to the construction of semantically and structurally denser ontologies. [ABSTRACT FROM AUTHOR]

The second part of ISO 25964 on interoperability of thesauri with other knowledge organization systems is presented in the context of the Internet and semantic web. A review is offered of the main mapping models, the main semantic relation mappings, and the intricacies of mapping thesauri against bibliographical and archival classifications, taxonomies, subject heading systems, ontologies, terminologies, authority lists, and synonym rings. Finally, the implications of the ISO 25964 standard for the theory and practice of knowledge organization systems are discussed. [ABSTRACT FROM AUTHOR]

The first part of the Spanish translation and adaptation of the ISO 25964 Information and documentation standard is analyzed: Thesauri and interoperability With Other vocabularies - Part 1: Thesauri for information retrieval will become the new UNE ISO 25964-1. Innovations and implications are presented and discussed, with particular attention to the developments that have beenimplemented to ensure that thesauri become fully interoperable technically and linguistically, so that all the advantages that they offer in an increasingly globalized and interconnected environment can be promoted, offering their strengths to the Semantic Web project. [ABSTRACT FROM AUTHOR]

The development of the Semantic web, understood as a shared space for exchange of structured data, has led to a renewed interest in traditional controlled vocabularies. This study presents an evaluation methodology that enables a systematic analysis of thesauri management tools applying a set of criteria that takes into account the purpose, functionalities of the application, integrity and consistency of vocabulary and other crucial issues related to interoperability, with particular attention to compatibility with Semantic web standards (RDF/SKOS). Integrability of these tools in other information systems, information interoperability, merging of thesauri between different information systems, or the ability to combine thesauri from different sources have are also part of the criteria proposed. [ABSTRACT FROM AUTHOR]

The publication of the new ISO 25964 thesaurus standard has coincided with a high level of deployment of the Skos ontology developed by the W3C and should solve the problem posed by the differences between them. There are currently works in progress to create a Skos extension that would use many of the functions provided by the data model of the new standard. [ABSTRACT FROM AUTHOR]

It describes and discusses the use of the most traditional Systems of Knowledge Organization, such as the Dewey Decimal Classification and the Library of Congress (LC), lists of subject headings and thesauri; in the Peruvian information systems. It also identifies the thesauri produced in Peru since the decade of the seventies of the last century to date. [ABSTRACT FROM AUTHOR]

Thesauri and other knowledge organization systems have been adapted to the technological environment. Currently, this represents an essential aspect of knowledge organization on the semantic web. After a long period in which thesaurus guidelines and standards were not updated, some have been revised by the governing organisations within the past five years. Consensus among international experts has resulted in publication of the first part of an ISO standard for thesauri, which provides a data model and emphasizes the interoperability process. This paper compiles the most relevant guidelines for thesauri published between the '80s and the ISO 25964 document. We reflect on the most relevant characteristics in this evolution and explore the most recent applications of knowledge organization systems on the Web. [ABSTRACT FROM AUTHOR]

The documentary language thesaurus, as standard terms, have been an important development for document management using software applications such as TemaTres, which is a controlled vocabulary server. This free application, for use on the web, provides continuous access to the sets of documents on specific topics for study, research and decision making. It presents the installation, functionality and interface that shows the application structure and ways of exploiting TemaTres for visual representation and management o fcontrolled vocabularies. [ABSTRACT FROM AUTHOR]

Review of major 2011 developments in the field of bibliographic cataloguing, document management and documentary languages. The use of content management systems for web publishing, the emergence of new approaches such as web experience management and the integration of web productivity components are analyzed. [ABSTRACT FROM AUTHOR]

Since the (re)appearance of ontologies in the late nineties, there is a debate about the relationship between thesauri and ontologies. This article presents a synthesis of this debate, focusing on the use of these tools in the information systems area, which is the best one to compare both technologies, utilizing the concept of document description semantics. [ABSTRACT FROM AUTHOR]

The article presents a comparative analysis of thesauri, taxonomies, folksonomies and ontologies as systems of knowledge organization and representation on basis of many variables like source, structure and objective. It describes how digital environments have led to the reuse of traditional tools of knowledge representation and promoted the development of new tools like ontologies. It states that these systems can be incorporated into a single tool as they are not compatible among themselves.

Basic concepts about thesauri construction and markup models for electronic thesauri are reviewed. Based on the analysis of the thematic content of the website "Chile para Niños" by means of the software ThManager, we developed a simple thesaurus and turned it into SKOSCore for future semantic information retrieval. [ABSTRACT FROM AUTHOR]

In order to evaluate concept, form and length of thesaurus preferred terms, four indicators are proposed: 1) percentage of preferred terms designating more than one concept, 2) mean of words per preferred term, 3) percentage of preferred terms with non standard grammatical forms, and 4) percentage of preferred terms with non standard singular and plural forms. A test was carried out on three thesauri, showing nonconformities regarding the four indicators. We conclude that the proposed indicators can be useful for quality evaluation of thesaurus design and development. [ABSTRACT FROM AUTHOR]

The Argentine standard for the construction of monolingual thesauri (IRAM 32057:1983) was compared with the latest editions of the international standard (ISO 2788:1986) and the national standards of Spain (UNE 50106:1990), United States (Z39.19:2005), and Great Britain (BSI 8723-2:2005b), as well as various well known manuals. The scope and formal aspects of the standards were analyzed, as well as conceptual issues related to controlled vocabulary. The scope of the Argentine standard is limited to the construction of monolingual thesauri, while the new North-American and British standards also cover different knowledge organization systems. In relation to the formal aspects, the Argentine standard lacks a table of contents, analytical index, glossary, bibliography and certain sections and annexes, and it includes very few examples. In reference to conceptual aspects, some definitions and recommendations for vocabulary control are incorrect or outdated. We conclude that the Argentine standards should be reviewed and updated in agreement with recently published standards and with ISO 25964, still in preparation. [ABSTRACT FROM AUTHOR]

The Content Management Systems (CMS) represent the current paradigm in the design and development of information systems and services based on the Web. One of the major challenges facing this kind of applications is to combine, at the same time, the information management processes with the implementation of a coherent structure for access to the data. This requires the use of tools near to the Knowledge Organization, usually by implementing taxonomies or, more flexibly, thesauri. Both of them have been traditionally used for classification and content description of documents. However, it is also very interesting to use them into the automatic construction of dynamic navigation systems, a procedure that can be done through the use of ontologies that, additionally, could be used to interrelate or infer the content managed in a CMS with that content located in corporate information systems (intranets). Diifferent ways to combine these emerging technologies are shown, associated with the representation of thesauri and ontologies in the Semantic Web (such as OWL and SKOS), with the aim to present a series of approaches that could guide future developments of CMS systems in order to obtain greater consistency in information structures. [ABSTRACT FROM AUTHOR]

This paper intends to set up some methodological guidelines required for extracting the information value from indirect information sources - as memories and travelers' tales or literary works. The aim is creating a documental and informative corpus about written culture and history of reading. To reach this aim, several methodologies are used, combining analysis of texts, information science procedures and application of Information Technologies. The project had the following phases: previous processing of the original sources by means of their intuitive and conceptual analysis; extracting of the textual passages or references; construction of the documental tools (including a thesaurus); subsequent indexing of the references; and finally, the unification of all that tools in a global automated database which will allow the retrieval of the references according to the user's specifications. As an example, an informative database with all the information about written culture in the Quixote is exposed. It is concluded that this methodology allows to extract the information value (both implicit and explicit) from those indirect sources and serve it to the user quickly and efficiently. [ABSTRACT FROM AUTHOR]

From the interdisciplinary connections between the Information Science and Computer Science; and, in order to demonstrate the interrelation between thesauri and ontologies, this research comprises a discussion of the literature about the basic principles that guide the development of ontologies and of the main theoretical aspects identified in the construction of thesauri that can be used to develop computer ontologies. It was concluded that thesauri can contribute to the development of ontologies both with theorical approaches and by (re)using their hierarchical, equivalence and associative relations. [ABSTRACT FROM AUTHOR]

A collection of eight documents on primary education provides the example for presenting a new indexing system based on a structure of primary and secondary descriptors and illustrating its equivalence to Universal Decimal Classification. The article shows the advantages of this new system as an information retrieval system and describes its role in the indexing system and process. Another aim of this article is to describe an actual project using a postcoordinate indexing system based on nuclear ordering of the descriptors, as well as to define the system and software requirements for efficient operation of user search and information retrieval functions. [ABSTRACT FROM AUTHOR]

News documentation lacks suitable instruments of classification and indexing, the only exception being the Subject Reference System of the International Press Telecommunications Council (IPTC), which is not yet fully developed. The most relevant contributions to classifying and indexing news in Spanish-language media, both in Spain and internationally, is reviewed. We also studied the development and use of controlled vocabularies for processing news information, primarily specialized thesauri. Finally, news documentation characteristics specific to indexing and information retrieval for print news media are described in detail. [ABSTRACT FROM AUTHOR]

The number of papers written on ontologies has increased considerably over the last twenty years. This trend can be easily observed by searching words like "ontology" or "thesaurus" in databases. Despite this fact, there hasn't been a consensus about the significance of this concept. The graphical representation known as ontology spectrum must have generated a lot of confusion amongst readers. In this paper we argue that this confusion is due to the mix of the various types of knowledge organization systems with distinct objectives in the same graphical representation. Thus, constructing a formal ontology for a system does not always presume an improvement, frequently it is adequate with less complex representations. [ABSTRACT FROM AUTHOR]

The main points of convergence and divergence between controlled indexing languages and ontologies, tools for knowledge organization and information retrieval in the semantic web, are described. Fundamental aspects of ontologies are presented, as well as the basic semantic and structural characteristics of traditional controlled languages. [ABSTRACT FROM AUTHOR]

This paper examines the characteristics, vantages and disadvantages of thesauri and other kind of controlled vocabularies in electronic format availables in Internet. To illustrate this, the author expose some examples of classifications and thesaurus that is possible to locate on the Web. [ABSTRACT FROM AUTHOR]

The similarities and differences between thesauri and the lists of subject headings are analyzed, taking into account the work plan for the 2003 revision of the US standard Z39.19. This standard pretends to establish new guidelines for all types of controlled vocabulary in relation to their use with new technologies. We conclude that it is very important to review all the standards for controlled vocabulary, particularly those with international scope, but at the same time, it is necessary to be very careful in maintaining a rigorous control of terminology; a correct definition of hierarchical and associative relationships, and to promote the postcordination, managed, if possible, in faceted and computerized systems. [ABSTRACT FROM AUTHOR]