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Journal articles on the topic 'Universal Decimal Classification (UDC) Hierarchie'
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Tsvetkova, V., T. Kharybina, Yu Mokhnacheva, E. Beskaravaynaya, and I. Mitroshina. "Combining classification systems and building the array of keyworks for defining the space of microbiological knowledge." Scientific and Technical Libraries 1, no. 11 (November 7, 2019): 25–43. http://dx.doi.org/10.33186/1027-3689-2019-11-25-43.
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Using various classifiers, which are thought to facilitate analytical work through structuring subject areas, in fact impedes this work. The authors present the method of combining several classification systems, namely the State Rubricator of Sci-tech Information (SRNTI); and RAS VINITI’s Rubricator of Disciplines; Universal Decimal Classification (UDC); International Patent Classification (IPC). The combination of these classification systems solves the fundamental problem which is to obtain the most detailed understanding of any scientific problem. The solution of this problem enables to determine search boundaries, filter out insignificant and irrelevant information on the subject (in this case – Microbiology). In their study, the authors selected the author's keywords and phrases. On the basis of the arrays of author’s keywords and phrases, an essential harmonized list of keywords and phrases for the basic Microbiology local rubricator was designed. Further, the selected keywords and phrases will serve as the foundation for building the ontological model of the discipline, which will enable computerized ontology building. The Microbiology draft rubricator developed by the authors comprises a three-level hierarchy. In particular, the first level is based on the classical concept of classification systems. Rubricator in Microbiology is developed on the basis of VINITI RAS classification of disciplines through the detailing method.
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Sukiasyan, Eduard. "New Russian State Standard devoted Universal Decimal Classification." Scientific and Technical Libraries, no. 12 (December 1, 2016): 67–80. http://dx.doi.org/10.33186/1027-3689-2016-12-67-80.
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Due to certification of GOST P 7.0.90-2016 regulating structure, rules of maintaining and indexing on the Universal Decimal Classification (UDC) information of system in general, of the UDC Consortium, the place which occupies UDC in the world is given. It is told also about M. Dewey Decimal classification (DDC) and activities of International society for knowledge organization (ISKO). The structure of the standard is in detail considered, a number of correctly notes on the applied terminology indicated. Recently published guide books which can be used for profound studying of classification systems and technology of indexing are listed. At the end of article the author says about why all librarians should know UDC. Influence of this system on further development of the theory and practice of classification is huge. Article in general is aimed at the development of classification culture.
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Beloozerov, V. N., and A. V. Shapkin. "Indices formal grammar of the Universal Decimal Classification." Bibliosphere, no. 4 (December 30, 2018): 106–10. http://dx.doi.org/10.20913/1815-3186-2018-4-106-110.
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The article proposes an algorithm for decoding and representation in natural language of the Universal Decimal Classifycation (UDC) complex class numbers. The algorithm is based on the formal definition of correct class numbers using a generative grammar, which sets the list of structures starting with simple table codes of UDC classes. Then separate integers, auxiliary and independent class numbers are sequentially attached to the codes with special symbols of relations of classes, which compose the complex class number. The algorithm expresses the values of the analyzed complex indices by descriptions (names and notes) of the table classes included in the structure of the analyzed string. The class descriptions are accompanied with the logical connectors based on the functions of the auxiliary characters. They provide the idea on connection of concepts denoted in the class number. The algorithm action is described evidently for the analysis of combined index 539.4.019: [535-15+537.8.029.6]. The proposed algorithm is applicable both to visualize the meaning of complex class numbers, and to ensure the completeness and accuracy of the documents retrieval by the UDC classes.
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Merkley, Cari. "The Library of Congress, Dewey Decimal, and Universal Decimal Classification Systems are Incomplete and Unsystematic." Evidence Based Library and Information Practice 6, no. 4 (December 15, 2011): 134. http://dx.doi.org/10.18438/b8qk7s.
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Objective – To determine the extent to which knowledge is currently addressed by the Library of Congress (LCC), Dewey Decimal (DDC), and Universal Decimal (UDC) classification systems.
Design – Comparative analysis of the LCC, DDC, and UDC systems using Zin’s 10 Pillars of Knowledge.
Setting – The Faculty of Philosophy and Science at a Brazilian university.
Subjects – Forty one subject-related classes and 386 subclasses from the first two levels of the LCC, DDC, and UDC systems.
Methods – To evaluate the LCC, DDC, and UDC systems, the researchers employed the 10 Pillars of Knowledge, a “hierarchical knowledge tree” developed by the lead author of this study (p. 878). According to the authors, the 10 Pillars of Knowledge seek to illustrate relationships between fields of knowledge while capturing their breadth. The first level of the Pillars consists of the following categories: Knowledge, Supernatural, Matter and Energy, Space and Earth, Nonhuman Organizations, Body and Mind, Society, Thought and Art, Technology, and History. Each of the 10 Pillars is further subdivided, resulting in a four level hierarchical structure of 76 categories. Of the 76 categories, 55 are unique subject areas. A selection of subject-based classes and subclasses from the first two levels of the LCC, DDC, and UDC systems were then mapped to the relevant subclasses within the Pillars. Analysis was limited to the first two levels of LCC, DDC, and UDC, except for the LCC categories of BF and BL where further subclasses were analyzed. Classes or subclasses in LCC, DDC, or UDC that were not subject based (for example, those based on publication type) were excluded from the study. In total, 41 main classes and 386 subclasses from LLC, DDC, and UDC were categorized using the 10 Pillars.
Main Results – The LLC, DDC, and UDC systems were deemed to be complete and systematic in their coverage of only three of the 10 Pillars: Matter and Energy, Thought and Art, and History. This means that there was at least one class or subclass in each of the three systems that corresponded to the subclasses in these pillars. The remaining seven pillars were only partially covered by the three systems to varying degrees. For example, the coverage of religion in LCC and DDC show evidence of a bias towards Christianity and incomplete coverage of other faiths. In addition to the lack of completeness in terms of subject coverage, the researchers found inconsistencies and problems with how relationships between subjects were illustrated by the systems. For example, botany should be a subclass of biology, but the subjects occupy the same level in the LCC, DDC, and UDC systems. Researchers also noted cases where subclasses on the same level were not mutually exclusive e.g., the BR (Christianity) and BS (The Bible) subclasses in LCC. Overall, LLC performed slightly better than DDC or UDC, covering 47 of the 55 unique subject categories in the 10 Pillars. It was followed by UDC with 44 out of 55, and DDC with 43 out of 55. Some of the 55 unique subject categories in the 10 Pillars system were not represented by any of the systems: 3 subclasses under Society (Society at Large – Area Based, Social Groups – Age, and Social Groups – Ethnicity), 2 under Technology (Technologies – Materials and Technologies – Processes), and 1 under Foundations (Methodology).
Conclusion – The researchers conclude that none of the three major classification systems analyzed provides complete and systematic coverage of the world of knowledge, and call for the library community to move to new systems, such as the 10 Pillars of Knowledge.
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Wilkins, G. A. "The Revision of the Universal Decimal Classification for Astronomy." International Astronomical Union Colloquium 110 (1989): 70–71. http://dx.doi.org/10.1017/s0252921100002955.
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AbstractThe Universal Decimal Classification system is widely used throughout the world for the arrangement of books in libraries and for the indexing of papers and reports as an aid to the retrieval of information. It is a comprehensive and language-independent system. The classification for astronomy and related topics (UDC 52) is used by many persons whose main interests are outside astronomy as well as by astronomical specialists. It is important that the classification be kept up to date, but the revision of UDC 52 is now overdue, as the last major revision was made in 1975 and published in 1977. It is clearly the responsibility of IAU Commission 5 to provide expert advice to the International Federation for Information and Documentation (FID) on the revision. Persons who are willing to participate in the work of revision are invited to write to the author, who is the current chairman of the relevant revision committee.
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Salah, Almila Akdag, Cheng Gao, Krzysztof Suchecki, and Andrea Scharnhorst. "Need to Categorize: A Comparative Look at the Categories of Universal Decimal Classification System and Wikipedia." Leonardo 45, no. 1 (February 2012): 84–85. http://dx.doi.org/10.1162/leon_a_00344.
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This study analyzes the differences between the category structure of the Universal Decimal Classification (UDC) system (which is one of the widely used library classification systems in Europe) and Wikipedia. In particular, the authors compare the emerging structure of category-links to the structure of classes in the UDC. The authors scrutinize the question of how knowledge maps of the same domain differ when they are created socially (i.e. Wikipedia) as opposed to when they are created formally (UDC) using classification theory. As a case study, we focus on the category of “Arts”.
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White, Maria. "Brackets and flying commas: UDC in Tate Library." Art Libraries Journal 36, no. 4 (2011): 13–17. http://dx.doi.org/10.1017/s0307472200017144.
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Universal Decimal Classification (UDC) is a flexible classification scheme that allows the full expression of the subject of a book. However such flexibility requires decisions to be taken on how to apply and use the schedules. This article discusses the choices made by Tate Library in its implementation of the classification scheme and how the Library has developed UDC for its in-house use, in particular the expansion of the section for modern art.
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Herrero-Solano, Victor, Felix Moya-Anegon, Vicente Guerrero-Bote, and Felipe Zapico-Alonso. "Graphical Table of Contents for Library Collections: The Application of Universal Decimal Classification Codes to Subject Maps." Information Technology and Libraries 25, no. 1 (March 1, 2006): 43. http://dx.doi.org/10.6017/ital.v25i1.3328.
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<span>The representation of information content by graphical maps is an extended ongoing research topic. The objective of this article consists in verifying whether it is possible to create map displays using Universal Decimal Classification (UDC) codes (using co-classification analysis) for the purpose of creating a graphical table of contents for a library collection. The application of UDC codes was introduced to subject maps development using the following graphic representation methods: (1) multidimensional scaling; (2) cluster analysis; and (3) neural networks (self-organizing maps). Finally, the authors conclude that the different kinds of maps have slightly different degrees of viability and types of application.</span>
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Shobbrook, R. M. "S O S for the astronomy schedules of the Universal Decimal Classification — UDC 52." Vistas in Astronomy 39 (January 1995): 273. http://dx.doi.org/10.1016/0083-6656(95)91033-d.
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Kononova, E. V., and E. R. Sukiasyan. "Publishing classification systems on the Internet: representation and use." Scientific and Technical Libraries 1, no. 2 (April 9, 2021): 91–100. http://dx.doi.org/10.33186/1027-3689-2021-2-91-100.
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Classification systems are published primarily in the book form, for various purposes and in different versions. They are identified by the number or year of publication. The authors propose another variant of maintaining classification systems, i.e. in the card format.The authors discuss the issues of presenting classification schedules of popular classification systems on the Internet with special focus on their applications. They explain why privately owned classification systems, like Dewey Decimal Classification (DDC) and Universal Decimal Classification (UDC), are not published on the Internet, while the systems supported by government organizations (e.g. national libraries) are traditionally published openly. The authors provide the example of the Library of Congress Classification (LCC), which is the United States’ National Classification System and which is published on open access. The project of the open presentation of the Library-Bibliographical Classification (LBC) in several versions supplemented with indices on the website of the Russian State Library (RSL) is described in more detail. The possibilities for their use are analyzed.
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Smith, Stephen J. "Book Review: Dewey Decimal Classification: A Practical Guide, and Guide to the Use of UDC: An Introductory Guide to the Use and Application of the Universal Decimal Classification." Library Resources & Technical Services 40, no. 1 (January 1, 1996): 99–101. http://dx.doi.org/10.5860/lrts.40n1.99.
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Dovbnya, Elena V. "Problems of Subject Retrieval in the Electronic Catalogue of Scientific Library: Review of Studies." Bibliotekovedenie [Russian Journal of Library Science] 69, no. 4 (November 6, 2020): 367–74. http://dx.doi.org/10.25281/0869-608x-2020-69-4-367-374.
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Scientific libraries use different approaches and tools for subject retrieval. Issues related to electronic subject retrieval are widely discussed in the library community. The purpose of this review is to analyse publications of recent years on the aspects and problems related to subject retrieval in electronic catalogue (EC). For its preparation, the author used publications (and references to them) taken from the national bibliographic database — the Russian Science Citation Index (RSCI); the time coverage is 2003—2019. Particular attention in the studies is focused on the need to combine different information retrieval languages (IRL), thesauruses, subject headings and keywords to ensure effective and multi-aspect search. Since the domestic libraries have accumulated a lot of experience in indexing and retrieval through hierarchical classifications (UDC and LBC), it is necessary to use this at the full extent in the electronic subject retrieval. The authors of the recent studies on subject retrieval consider being the most effective the functioning of classification systems as part of the complex of linguistic tools of electronic catalogue. In the electronic environment, it becomes possible to use classification indexes as a set of characters that maximally reflect the content of the document, what involves the use of all fragments of the index as independent retrieval elements. However, the lexical composition of the classification information retrieval languages needs to be modified for effective use in the electronic catalogue. The main directions here can be as follows: unification of the structure and vocabulary of classification schedules, optimization of the structure of classification systems (using facetization principles), as well as formalization of the use of grammar tools, (it is necessary to ensure the unambiguity of their interpretation in the electronic catalogue). The review presents and analyses the areas where the subject retrieval has been developed in the electronic environment for over the past 16 years. For example, there has been developed and is being implemented the superstructure over Universal Decimal Classification (Library for Natural Sciences of the Russian Academy of Sciences), which allows users of the library to remotely conduct full-fledged subject retrieval. The paper also presents the new developments by the Russian State Library on subject retrieval, in particular, the project “Presentation of classification metadata of electronic libraries using linked data technology”. The author concludes that it is necessary to form a common space of related open data of various libraries.
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Kragelj, Matjaž, and Mirjana Kljajić Borštnar. "Automatic classification of older electronic texts into the Universal Decimal Classification–UDC." Journal of Documentation ahead-of-print, ahead-of-print (December 8, 2020). http://dx.doi.org/10.1108/jd-06-2020-0092.
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PurposeThe purpose of this study is to develop a model for automated classification of old digitised texts to the Universal Decimal Classification (UDC), using machine-learning methods.Design/methodology/approachThe general research approach is inherent to design science research, in which the problem of UDC assignment of the old, digitised texts is addressed by developing a machine-learning classification model. A corpus of 70,000 scholarly texts, fully bibliographically processed by librarians, was used to train and test the model, which was used for classification of old texts on a corpus of 200,000 items. Human experts evaluated the performance of the model.FindingsResults suggest that machine-learning models can correctly assign the UDC at some level for almost any scholarly text. Furthermore, the model can be recommended for the UDC assignment of older texts. Ten librarians corroborated this on 150 randomly selected texts.Research limitations/implicationsThe main limitations of this study were unavailability of labelled older texts and the limited availability of librarians.Practical implicationsThe classification model can provide a recommendation to the librarians during their classification work; furthermore, it can be implemented as an add-on to full-text search in the library databases.Social implicationsThe proposed methodology supports librarians by recommending UDC classifiers, thus saving time in their daily work. By automatically classifying older texts, digital libraries can provide a better user experience by enabling structured searches. These contribute to making knowledge more widely available and useable.Originality/valueThese findings contribute to the field of automated classification of bibliographical information with the usage of full texts, especially in cases in which the texts are old, unstructured and in which archaic language and vocabulary are used.
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Simões, Maria da Graça, Blanca Rodríguez Bravo, and Olívia Pestana. "Representação do conceito de mulher na Classificação Decimal Dewey (CDD) a na Classificação Decimal Universal (CDU): duas perspetivas sobre o mesmo conceito? | The representation of woman's concept in the Decimal Dewey Classification (DDC) and in the Universal Decimal Classification (UDC): two perspectives for the same concept?" Liinc em Revista 14, no. 2 (December 17, 2018). http://dx.doi.org/10.18617/liinc.v14i2.4340.
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RESUMO A dinâmica e a emergência de novos conhecimentos exige que se construam novos sistemas de organização de conhecimento e se revejam outros, para a sua localização e acesso. Nesse processo, as estruturas de organização do conhecimento assumem particular relevância como instrumentos eficazes de efetuar esses propósitos. Pela sua longevidade, destacam-se as classificações bibliográficas, entre as quais a Classificação Decimal de Dewey (CDD) e a Classificação Decimal Universal (CDU). Propõe-se como objetivo identificar como esses dois sistemas representam o conceito mulher e se tal pode ser considerado indicador de duas perspetivas sobre o mesmo conceito. Adotou-se uma abordagem qualitativa exploratória, baseada na revisão da literatura e análise comparativa da representação desse conceito nos dois sistemas considerados. Não se observam duas perspetivas diferentes em relação ao conceito mulher, os dois sistemas continuam a traduzir a mentalidade positivista na qual foram concebidas. É evidente a reduzida representatividade do conceito mulher nos dois sistemas de classificação no que se refere à exaustividade e à especificidade. Os dois sistemas refletem a noção de mulher num plano depreciativo e inferior à masculina, traduzindo o estereótipo tradicional.Palavras-chave: Mulher; Classificação Decimal Dewey (CDD); Classificação Decimal Universal (CDU).ABSTRACT The dynamics and emergence of new knowledge requires building new knowledge organization systems and reviewing others for the location and access of knowledege. In this process the structures of knowledge organization assume particular relevance, as effective instruments to accomplish these purposes. For its longevity, the bibliographical classifications stand out and among them particularly the Dewey Decimal Classification (CDD) and the Universal Decimal Classification (CDU). It is proposed to identify how these two systems represent the concept of woman and whether this can be considered as an indicator of two perspectives on the same concept. A qualitative exploratory approach was adopted, based on literature review and comparative analysis of the representation of this concept in the two systems considered. Two different perspectives are not observed in relation to the woman’s concept, because the two systems continue to translate the positivist mentality in which they were conceived. The low representativeness of the concept of woman in the two classification systems is evident with regard to exhaustivity and specificity. Both systems reflect the notion of woman in a depreciative and inferior plan to the masculine, translating the traditional stereotype.Keywords: Woman; Dewey Decimal Classification; Universal Decimal Classification.
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Dunsire, Gordon, and Mirna Willer. "Standartinių bibliotekų metaduomenų modelių ir struktūrų pateikimo semantiniame saityne iniciatyvos." Relevant Tomorrow, January 14, 2013. http://dx.doi.org/10.51740/rt.vi.441.
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Straipsnyje aptariamos naujausios bibliotekų metaduomenų modelių ir struktūrų, tarp jų – IFLA standartų „Functional Requirements for Bibliographic Records“ (FRBR) („Funkciniai reikalavimai bibliografiniams įrašams“), „Functional Requirements for Authority Data“ (FRAD) („Funkciniai reikalavimai autoritetiniams duomenims“) ir „International Standard Bibliographic Description“ (ISBD) („Tarptautinis standartinis bibliografinis aprašas“) kartu su juos palaikančia infrastruktūra pateikimo semantiniame saityne iniciatyvos.
FRBR peržiūros grupė, pasitelkdama RDF, RDF schemą (RDF Schema – RDFS), Paprastą žinių organizavimo sistemą (Simple Knowledge Organization System – SKOS) ir Saityno ontologijų kalbą (Web Ontology Language – OWL), šiuo metu rengia FRAD bei FRBR entiteto ir santykio modelio pateiktis „Išteklių aprašo modeliu“ (Resource Description Framework – RDF) grindžiamoms taikomosioms programoms, atitinkamais atvejais nustatydama abiejų modelių sankirtas. ISBD/XML tyrimų grupė tiria ISBD pateikimo RDF galimybes. Pagal IFLA Vardų erdvių projektą kuriama administracinė ir techninė infrastruktūra, kuri padėtų įgyvendinti šias iniciatyvas ir skatintų kitas tarnybas perimti šiuos standartus.
Straipsnyje apibūdinamos ir panašios tokių susijusių išorinių standartų, kaip RDA, REICAT (naujosios Italų katalogavimo taisyklės) ir CIDOC CRM, iniciatyvos. DCMI RDA laikina darbo grupė kartu su RDA jungtiniu vykdomuoju komitetu rengia su FRBR ir FRAD suderintas RDA struktūrinių elementų semantinio saityno pateiktis ir kontroliuojamus metaduomenų turinio žodynus. REICAT irgi grindžiamos FRBR, o į objektą orientuota FRBR versija susieta su CRM, kuris, savo ruožtu, pateikiamas RDF. CRM būtinumas iš pradžių buvo grindžiamas muziejų bendruomenei skirtų metaduomenų reikalingumu: dabar siekiama jį pritaikyti ir archyvams, galiausiai sukuriant modelį, kuris būtų bendras visoms pagrindinėms kultūros informacijos sritims: archyvams, bibliotekoms ir muziejams. Žodynų sutapties schemos (Vocabulary Mapping Framework – VMF) projekto metu sukurta semantinio saityno priemonė, automatiškai nustatanti skirtingų informacijos bendruomenių, įskaitant leidėjus, metaduomenų modelių sankirtas. Priemonės pagrindą sudaro keletas standartų, tarp kurių - CRM, FRAD, FRBR, MARC2I ir RDA.
Straipsnyje aptariama šių iniciatyvų svarba, susijusi su gausių turtingų profesionaliai sukurtų minėtus standartus atitinkančiais formatais (pvz., UNIMARC ir MARC2I) saugomų metaduomenų pateikimu kaip susietų duomenų, taip pat su tokiomis problemomis, kaip statistinėms ir semantinėms išvadoms daryti būtina kritinė masė, integravimas su vartotojų ir kompiuterių kuriamais metaduomenimis, autentiškumas, teisingumas bei patikimumas. Straipsnyje aptariamos ir iniciatyvos, kuriomis siekiama kaip susietus duomenis teikti kontroliuojamiems žodynams, tokiems kaip Dewey dešimtainė klasifikacija (Dewey Decimal Classification – DDC), ISBD, Kongreso bibliotekos vardų autoritetinis failas (Library of Congress Name Authority File – LCNAF), Kongreso bibliotekos dalykinės rubrikos (Library of Congress Subject Headings – LCSH), Rameau (Prancūzų dalykinės rubrikos). Universalioji dešimtainė klasifikacija (Universal Decimal Classification – UDC) ir Virtualus tarptautinis autoritetinis failas (Virtual Authority File – VIAF). Ir, galiausiai, straipsnyje aptariama galima visų šių iniciatyvų įtaka metaduomenų kūrimo procesams ir jų valdymo sistemoms.