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Prolegomena to Library Classification
01 Jan 1967-
About: The article was published on 1967-01-01 and is currently open access. It has received 431 citations till now. The article focuses on the topics: Library of Congress Classification & Dewey Decimal Classification.
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TL;DR: This paper shows how the faceted approach helps to build a flexible model and retrieve better information by implementing an ontological model, and uses the medical domain as a case study to show examples and implementation.
Abstract: The purpose of this research is to develop an ontology with subsequent testing and evaluation, for identifying utility and value. The domain that has been chosen is human nervous system (HNS) disorders. It is hypothesized here that an ontology-based patient records management system is more effective in meeting and addressing complex information needs of health-care personnel. Therefore, this study has been based on the premise that developing an ontology and using it as a component of the search interface in hospital records management systems will lead to more efficient and effective management of health-care. It is proposed here to develop an ontology of the domain of HNS disorders using a standard vocabulary such as MeSH or SNOMED CT. The principal classes of an ontology include facet analysis for arranging concepts based on their common characteristics to build mutually exclusive classes. We combine faceted theory with description logic, which helps us to better query and retrieve data by implementing an ontological model. Protégé 5.2.0 was used as ontology editor. The use of ontologies for domain modelling will be of acute help to doctors for searching patient records. In this paper we show how the faceted approach helps us to build a flexible model and retrieve better information. We use the medical domain as a case study to show examples and implementation.
4 citations
Cites background from "Prolegomena to Library Classificati..."
...Faceted classification is “the sorting of terms in a given field of knowledge into homogeneous, mutually exclusive facets, each derived from the parent universe by a single characteristic of division” (Vickery 1968), described in Ranganathan (1937) and implemented in Ranganathan (1989)....
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29 Jul 2013
TL;DR: This paper attempts to develop a document-independent description of subject, which is based on semantically-related words within the domain of appropriate context, according to this new description, the subject would eventually become definable as sets of well-defined and semantically -related words that may be regarded as microscopic description.
Abstract: The concept of subject as expounded in library and information science (LIS) has been interpreted here from the standpoint of the concept of word in linguistics. Both the concepts have been thoroughly reviewed. It has been observed that the concept of subject so long conceived by different researchers in LIS is basically preceded by the concept of document. The description of subject, therefore in most cases, by default becomes incumbent within the concept of document. Since the document is a macroscopic entity, therefore document-dependent description of subject naturally portrays a macroscopic layout of the same. This paper attempts to develop a document-independent description of subject, which is based on semantically-related words within the domain of appropriate context. According to this new description, the subject would eventually become definable as sets of well-defined and semantically-related words that may be regarded as microscopic description. It has also been found out that the seed of document-independent and word-based definition of subject was already sown in the concept of semantic field, a domain under the subject linguistics. This concept was incepted by Trier and subsequently modified by Lehrer. It has been logically established that the idea of foci incepted by Ranganathan and the idea of semantic field incepted and modified by Trier and Lehrer respectively are conceptually equivalent. A subject may therefore be described as sets of semantic fields and, in turn as sets of words.
4 citations
DOI•
01 Jan 2005
TL;DR: In this paper, a faccette libere, a schema for classificazione generale, basato sulla teoria dei livelli di integrazione, is presented.
Abstract: Negli anni Sessanta il Classification research group studio la possibilita di uno schema di classificazione generale "a faccette libere", basato sulla teoria dei livelli di integrazione. Uno schema di questo tipo e stato da noi sperimentato per indicizzare una bibliografia di cultura locale. Sono presentate in particolare le caratteristiche della notazione, progettate per facilitare il recupero di descrizioni bibliografiche in ambiente digitale. Il sistema e stato sperimentato realizzando un'interfaccia di ricerca via Web scritta in linguaggio PHP, che estrae i dati registrati in una base-dati MySQL. La struttura a livelli permette di esprimere le relazioni fra concetti sia per semplice giustapposizione dei corrispondenti simboli, sia in modi piu sofisticati, compresa la relazione di dipendenza che sussiste tra fenomeni di livelli di integrazione diversi, quali "piante" e "boschi" o "montagne" e "alpinismo". ...
4 citations
Cites background from "Prolegomena to Library Classificati..."
...Conviene allora riassumere questo valore specifico definendolo come la classe preferita (Ranganathan, 1967, capitolo DG), rappresentata nel nostro schema dalla cifra 9....
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01 Jan 2010
TL;DR: This research proposes a comprehensive framework to reorganize the flat tag space into a hierarchical faceted model using analysis of tag-tag co-occurrence networks and makes a series of recommendations as to how to improve the social functions to facilitate web content discovery.
Abstract: Social bookmarking has gained popularity since the advent of Web 2.0. Keywords known as tags are created to annotate web content, and the resulting tag space composed of the tags, the resources, and the users arises as a new platform for web content discovery. Useful and interesting web resources can be located through searching and browsing based on tags, as well as following the user-user connections formed in the social bookmarking community. However, the effectiveness of tag-based search is limited due to the lack of explicitly represented semantics in the tag space. In addition, social connections between users are underused for web content discovery because of the inadequate social functions. In this research, we propose a comprehensive framework to reorganize the flat tag space into a hierarchical faceted model. We also studied the structure and properties of various networks emerging from the tag space for the purpose of more efficient web content discovery.
The major research approach used in this research is social network analysis (SNA), together with methodologies employed in design science research. The contribution of our research includes: (i) a faceted model to categorize social bookmarking tags; (ii) a relationship ontology to represent the semantics of relationships between tags; (iii) heuristics to reorganize the flat tag space into a hierarchical faceted model using analysis of tag-tag co-occurrence networks; (iv) an implemented prototype system as proof-of-concept to validate the feasibility of the reorganization approach; (v) a set of evaluations of the social functions of the current networking features of social bookmarking and a series of recommendations as to how to improve the social functions to facilitate web content discovery.
4 citations
Cites background or methods from "Prolegomena to Library Classificati..."
...Ranganathan [266] was the first to introduce the word “facet” into library and information science, and the first to consistently develop the theory of facet analysis....
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...The method of facet analysis was conceived by Ranganathan [265, 266]....
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...In an investigation of the application of Ranganathan’s principles to a range of information retrieval problems, Ingwersen and Wormell [176] stated that 99 “…the discussion demonstrates the suitability of the faceted categorization, not only for textual documents but also with other forms of carriers of information....
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...Ranganathan [265, 266] organized the individual terms into five broad categories or facets (PMEST): (i) Personality: the most significant group of terms in each discipline e.g. substances in chemistry, plants in botany, nations in history; (ii) Matter: materials and physical constituents of things; (iii) Energy: action or activity terms; (iv) 98 Space: where things occur; (v) Time: when they occur....
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...” Ranganathan [265, 266] organized the individual terms into five broad categories or facets (PMEST): (i) Personality: the most significant group of terms in each discipline e....
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16 Jul 2011
TL;DR: The Semantic Matcher is presented, a system created to handle semantic heterogeneity (i.e. the use of different words for similar meanings), which is one of the most common mismatches across existing web-based ontologies.
Abstract: In a Semantic-Web-like multi-agent environment, ontology mismatch is inevitable: we can't realistically expect agents created at different times and places by different people to commit to one unchanging universal ontology. But what happens when agents attempt to interact? Can we benefit from ontology matching techniques to prevent communication breakdown? In this paper we present the Semantic Matcher, a system created to handle semantic heterogeneity (i.e. the use of different words for similar meanings), which is one of the most common mismatches across existing web-based ontologies. We claim that independently created agents with different ontologies are bound to miscommunicate because word meanings are private and not grounded in the real world. We propose the solution of achieving reference by means of sense, a common argument within Philosophy of Language. In our work, senses are simulated by bags of words, constructed for each lexical item known to a service-requesting agent, and for selected lexical items known to a service-providing agent in a given interaction. In the end we show that adopting this notion of 'sense' for words in formal ontologies allows for successful matching and creates the groundwork for a theory in which the vast amount of data available on the web can be used to facilitate agent communication by providing meaning for mismatched terms.
4 citations
Additional excerpts
...Our final goal was to create an ontology that both reflects the specificity of the PAT and respects the canons of the analytico-synthetic approach [Ranganathan, 1967] for the...
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