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Faceted Classification
A faceted classification is a classification scheme used in organizing knowledge into a systematic order. A faceted classification uses semantic categories, either general or subject-specific, that are combined to create the full classification entry. Many library classification systems use a combination of a fixed, enumerative taxonomy of concepts with subordinate facets that further refine the topic. Definition There are two primary types of classification used for information organization: enumerative and faceted. An enumerative classification contains a full set of entries for all concepts. A faceted classification system uses a set of semantically cohesive categories that are combined as needed to create an expression of a concept. In this way, the faceted classification is not limited to already defined concepts. While this makes the classification quite flexible, it also makes the resulting expression of topics complex. To the extent possible, facets represent "clearly d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classification Scheme
In information science and ontology, a classification scheme is an arrangement of classes or groups of classes. The activity of developing the schemes bears similarity to taxonomy, but with perhaps a more theoretical bent, as a single classification scheme can be applied over a wide semantic spectrum while taxonomies tend to be devoted to a single topic. In the abstract, the resulting structures are a crucial aspect of metadata, often represented as a hierarchical structure and accompanied by descriptive information of the classes or groups. Such a classification scheme is intended to be used for the classification of individual objects into the classes or groups, and the classes or groups are based on characteristics which the objects (members) have in common. The ISO/IEC 11179 metadata registry standard uses classification schemes as a way to classify administered items, such as data elements, in a metadata registry. Some quality criteria for classification schemes are: * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shiyali Ramamrita Ranganathan
Shiyali Ramamrita Ranganathan ( 09 August 1892 – 27 September 1972) was an Indian librarian and mathematician. His most notable contributions to the field were his five laws of library science and the development of the first major faceted classification system, the colon classification. He is considered to be the father of library science, documentation, and information science in India and is widely known throughout the rest of the world for his fundamental thinking in the field. His birthday is observed every year as National Librarian Day in India. He was a university librarian and professor of library science at Banaras Hindu University (1945–47) and professor of library science at the University of Delhi (1947–55), the first Indian school of librarianship to offer higher degrees. He was president of the Indian Library Association from 1944 to 1953. In 1957 he was elected as an honorary member of the International Federation for Information and Documentation (FID) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dewey Decimal Classification
The Dewey Decimal Classification (DDC) (pronounced ) colloquially known as the Dewey Decimal System, is a proprietary library classification system which allows new books to be added to a library in their appropriate location based on subject. Section 4.14 of the article states the DDC is "arranged by discipline, not subject" It was first published in the United States by Melvil Dewey in 1876. Originally described in a 44-page pamphlet, it has been expanded to multiple volumes and revised through 23 major editions, the latest printed in 2011. It is also available in an abridged version suitable for smaller libraries. OCLC, a non-profit cooperative that serves libraries, currently maintains the system and licenses online access to WebDewey, a continuously updated version for Cataloging (library science), catalogers. The decimal number classification introduced the concepts of ''relative location'' and ''relative index''. Libraries previously had given books permanent shelf loc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Library Of Congress Classification
The Library of Congress Classification (LCC) is a system of library classification developed by the Library of Congress in the United States, which can be used for shelving books in a library. LCC is mainly used by large research and academic libraries, while most public libraries and small academic libraries use the Dewey Decimal Classification system. The classification was developed by James Hanson (chief of the Catalog Department), with assistance from Charles Martel, in 1897, while they were working at the Library of Congress. It was designed specifically for the purposes and collection of the Library of Congress, to replace the fixed location system developed by Thomas Jefferson. LCC has been criticized for lacking a sound theoretical basis; many of the classification decisions were driven by the practical needs of that library rather than epistemological considerations. Although it divides subjects into broad categories, it is essentially enumerative in nature. That is, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Universal Decimal Classification
The Universal Decimal Classification (UDC) is a bibliographic and library classification representing the systematic arrangement of all branches of human knowledge organized as a coherent system in which knowledge fields are related and inter-linked. The UDC is an analytico-synthetic and faceted classification system featuring detailed vocabulary and syntax that enables powerful content indexing and information retrieval in large collections.UDC History "About UDC" - UDC Consortium website Since 1991, the UDC has been owned and managed by the UDC Consortium, a non-profit international association of publishers with headquarters in , Netherlands. Unlike other library classification schemes that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hierarchical Classification
Hierarchical classification is a system of grouping things according to a hierarchy. In the field of machine learning, hierarchical classification is sometimes referred to as instance space decomposition, which splits a complete multi-class classification, multi-class problem into a set of smaller classification problems. See also * Deductive classifier * Cascading classifiers * Faceted classification References External links Hierarchical Classification – a useful approach for predicting thousands of possible categories Classification algorithms {{AI-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matter
In classical physics and general chemistry, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles. In everyday as well as scientific usage, ''matter'' generally includes atoms and anything made up of them, and any particles (or combination of particles) that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or heat. Matter exists in various states (also known as phases). These include classical everyday phases such as solid, liquid, and gas – for example water exists as ice, liquid water, and gaseous steam – but other states are possible, including plasma, Bose–Einstein condensates, fermionic condensates, and quark–gluon plasma. Usually atoms can be imagined as a nucleus of protons and neu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Otlet
Paul Marie Ghislain Otlet (; ; 23 August 1868 – 10 December 1944) was a Belgian author, lawyer and peace activist; who was a foundational figure in documentalism, a precursory discipline to information science. Otlet created the Universal Decimal Classification, which would later become a faceted classification. Otlet was responsible for the development of an early information retrieval tool, the "" (RBU). RBU was used by the :fr:Institut_international_de_bibliographie, International Institute of Bibliography which later became the Mundaneum. Otlet wrote numerous essays on how to collect and organize and connect knowledge, culminating in two books, the ' (1934) and ' (1935). His ideas for information collection, storage and retrieval have been compared to early incarnations of the internet and search engines. In 1907, following a huge international conference, Otlet and Henri La Fontaine created the Central Office of International Associations, which was renamed to the Union ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri La Fontaine
Henri La Fontaine (; 22 April 1854 – 14 May 1943), was a Belgian international lawyer and president of the International Peace Bureau. He received the Nobel Peace Prize in 1913 because "he was the effective leader of the peace movement in Europe." Biography La Fontaine was born in Brussels on 22 April 1854 and studied law at the Free University of Brussels (now split into the Université libre de Bruxelles and the Vrije Universiteit Brussel). He was admitted to the bar in 1877 and established a reputation as an authority on international law. He and his sister Léonie La Fontaine were early advocates for women's rights and suffrage, founding in 1890 the Belgian League for the Rights of Women. In 1893, he became professor of international law at the Free University of Brussels and two years later was elected to the Belgian Senate as a member of the Socialist Party. He served as vice chairman of the Senate from 1919 to 1932. La Fontaine took an early interest in the Interna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas John Foskett
Douglas John Foskett OBE (27 June 1918 – 7 May 2004) was a British librarian and library and information scientist, and author of several special faceted classification systems. Early life and career Foskett was born in London on 27 June 1918. He received his BA from Queen Mary College in 1939 and in 1954 his MA at Birkbeck, University of London. He started his career in the late 1930s as a librarian in the Ilford Public Libraries in Essex. During World War II he served in the Royal Army Medical Corps and later in the Intelligence Corps. From 1948 to 1957 he was Head of Information in the Research Division of the Metal Box Company Limited. In 1957 to 1978 he was at the Library of the Institute of Education in London, where he devised and implemented the specialist London Education Classification scheme to organize the library's collections. The last five years before retirement he was Director at the Central Library Services of the University of London.Robert Wedeworth ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classification Research Group
The Classification Research Group (CRG) was a significant contributor to classification research and theory in the field of library and information science in the latter half of the 20th century. It was formed in England in 1952 and was active until 1968. Informal meetings continued until 1990. Among its members were Derek Austin, Eric Coates, Jason Farradane, Robert Fairthorne, Douglas Foskett, Barbara Kyle, Derek Langridge, Jack Mills, Pauline Atherton Cochrane, Phyllis Richmond, Bernard Palmer, Jack Wells, and Brian Campbell Vickery. The group formed important principles on faceted classification and also worked on the theory of integrative levels. Publications * 1955. The need for a faceted classification as the basis for all methods of information retrieval. ''Library Association Record'', 57(7), 262-268. * 1958. Classification Research Group Bulletin No. 4. ''Journal of Documentation'', 14( 3), 136-143. * 1959. Classification Research Group Bulletin No. 5. ''Journal o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
