Search (114 results, page 1 of 6)

0.09996766 = product of:
  0.14995149 = sum of:
    0.11054661 = weight(_text_:management in 379) [ClassicSimilarity], result of:
      0.11054661 = score(doc=379,freq=12.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.6385391 = fieldWeight in 379, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0546875 = fieldNorm(doc=379)
    0.039404877 = product of:
      0.07880975 = sum of:
        0.07880975 = weight(_text_:system in 379) [ClassicSimilarity], result of:
          0.07880975 = score(doc=379,freq=8.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.4871716 = fieldWeight in 379, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=379)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

Shows the possibilities that exist to create a basic hypertext interface for a thesaurus management system. The project has been built in 3 stages: conceptual data model for the thesaurus; development of the management tools, that is, the thesaurus management system; and the hypertext interfaces. The system has been developed on Windows and combines the power of relational database management systems and the navigational flexibility of Guide, a hypertext shell. presents 2 interface models. Concludes that hypertext interfaces improve management, and open a new path for knowledge organization research

Footnote

Übers. des Titels: A hypertext interface for a thesaurus management system

0.088832036 = product of:
  0.13324805 = sum of:
    0.045130465 = weight(_text_:management in 4042) [ClassicSimilarity], result of:
      0.045130465 = score(doc=4042,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.2606825 = fieldWeight in 4042, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4042)
    0.08811758 = sum of:
      0.039404877 = weight(_text_:system in 4042) [ClassicSimilarity], result of:
        0.039404877 = score(doc=4042,freq=2.0), product of:
          0.16177002 = queryWeight, product of:
            3.1495528 = idf(docFreq=5152, maxDocs=44218)
            0.051362853 = queryNorm
          0.2435858 = fieldWeight in 4042, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.1495528 = idf(docFreq=5152, maxDocs=44218)
            0.0546875 = fieldNorm(doc=4042)
      0.0487127 = weight(_text_:22 in 4042) [ClassicSimilarity], result of:
        0.0487127 = score(doc=4042,freq=2.0), product of:
          0.17986396 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051362853 = queryNorm
          0.2708308 = fieldWeight in 4042, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0546875 = fieldNorm(doc=4042)
  0.6666667 = coord(2/3)

Abstract

The benefits of a well constructed thesaurus to an information retrieval system have long been recognised by both researchers and practitioners in the field. Examines both early and current approaches to automatic thesaurus construction and describes an approach to the automatic generation of global thesauri based on the term discrimination value model of Salton Yang, and Yu and on an appropriate clustering algorithm. This method has been implemented and applied to 2 document collections. Preliminary results indicate that this method, which produces improvements in retrieval performance in excess of 10 and 15% in the test collections, is viable and worthy of continued investigation.

Date

22. 4.1996 3:39:53

Source

Information processing and management. 26(1990), no.5, S.629-640

0.07192008 = product of:
  0.107880116 = sum of:
    0.06382412 = weight(_text_:management in 3817) [ClassicSimilarity], result of:
      0.06382412 = score(doc=3817,freq=4.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.36866072 = fieldWeight in 3817, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3817)
    0.044055995 = product of:
      0.08811199 = sum of:
        0.08811199 = weight(_text_:system in 3817) [ClassicSimilarity], result of:
          0.08811199 = score(doc=3817,freq=10.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.5446744 = fieldWeight in 3817, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3817)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

Reports an integrated system that employs an open structure for managing the distributed resources (thesauri and databases) and integrates a thesaurus management system with a crossthesaurus search system. Describes the functions of the system that highlight the unique design for the networked environment.

0.06718512 = product of:
  0.10077768 = sum of:
    0.07294185 = weight(_text_:management in 4092) [ClassicSimilarity], result of:
      0.07294185 = score(doc=4092,freq=4.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.42132655 = fieldWeight in 4092, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0625 = fieldNorm(doc=4092)
    0.02783583 = product of:
      0.05567166 = sum of:
        0.05567166 = weight(_text_:22 in 4092) [ClassicSimilarity], result of:
          0.05567166 = score(doc=4092,freq=2.0), product of:
            0.17986396 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051362853 = queryNorm
            0.30952093 = fieldWeight in 4092, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=4092)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

This 1993 edition is the authoritative guide constructing single-language thesauri, one of the most powerful tools for information retrieval. Written by experts, Z39.19 shows how to formulate descriptors, establish relationships among terms, and present the information in print and on a screen. Also included are thesaurus maintenance procedures and recommended features for thesaurus management systems

Footnote

Rez. in: Knowledge organization 22(1995) no.3/4, S.180-181 (M. Hudon)

0.05568437 = product of:
  0.08352655 = sum of:
    0.06382412 = weight(_text_:management in 6773) [ClassicSimilarity], result of:
      0.06382412 = score(doc=6773,freq=4.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.36866072 = fieldWeight in 6773, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6773)
    0.019702438 = product of:
      0.039404877 = sum of:
        0.039404877 = weight(_text_:system in 6773) [ClassicSimilarity], result of:
          0.039404877 = score(doc=6773,freq=2.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.2435858 = fieldWeight in 6773, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6773)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

Members offer comments and suggest resources on programs for creating, maintaining, and publishing thesauri. Formerly a tool for writers and indexers, the thesaurus has taken on a new role as an essential component of the corporate information infrastructure. Many people are using word processor or database programs to create and maintain thesauri, while others are using specialized tools that perform consistency checks and offer special reporting capabilities. Some also use thesaurus modules integrated into another application, such as web publishing, content management, or e-commerce. This article includes material comes from our own experience, email responses from members, and comments from participants in our seminars and roundtables. There's also an introduction to thesauri in a corporate information management system

0.047729462 = product of:
  0.07159419 = sum of:
    0.05470639 = weight(_text_:management in 5813) [ClassicSimilarity], result of:
      0.05470639 = score(doc=5813,freq=4.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.31599492 = fieldWeight in 5813, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.046875 = fieldNorm(doc=5813)
    0.016887804 = product of:
      0.03377561 = sum of:
        0.03377561 = weight(_text_:system in 5813) [ClassicSimilarity], result of:
          0.03377561 = score(doc=5813,freq=2.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.20878783 = fieldWeight in 5813, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=5813)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

Shows that it is possible to construct a lexical database by combining material from a number of machine-readable sources. Discusses the kind of lexical information required for applications in information retrieval and in other natural language processing areas, such as database interfaces and automatic filing systems. Describes the organization of the lexical database which is stored in an Oracle relational database management system and the design of the tables that comprise the database. In addition to the traditional alphabetic listing, access is privided from roots to derived forms and from derived forms to roots, and also through lexical and semantic relations between words, so that the database functions as a thesaurus as well as a dictionary. The database is designed to be open-ended and self-defined. Every attribute of every table is defined in the database itself. The lexical database can easily be extended through an SQL forms interface that facilitates additions to the tables

Source

Information processing and management. 29(1993) no.5, S.415-431

0.046324544 = product of:
  0.06948681 = sum of:
    0.045130465 = weight(_text_:management in 1149) [ClassicSimilarity], result of:
      0.045130465 = score(doc=1149,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.2606825 = fieldWeight in 1149, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1149)
    0.02435635 = product of:
      0.0487127 = sum of:
        0.0487127 = weight(_text_:22 in 1149) [ClassicSimilarity], result of:
          0.0487127 = score(doc=1149,freq=2.0), product of:
            0.17986396 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051362853 = queryNorm
            0.2708308 = fieldWeight in 1149, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1149)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Date

22. 9.2007 15:45:57

Series

Information science and knowledge management; vol.2

0.04447209 = product of:
  0.06670813 = sum of:
    0.032236047 = weight(_text_:management in 2703) [ClassicSimilarity], result of:
      0.032236047 = score(doc=2703,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.18620178 = fieldWeight in 2703, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2703)
    0.034472086 = product of:
      0.06894417 = sum of:
        0.06894417 = weight(_text_:system in 2703) [ClassicSimilarity], result of:
          0.06894417 = score(doc=2703,freq=12.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.42618635 = fieldWeight in 2703, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2703)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

When consumers search for health information, a major obstacle is their unfamiliarity with the medical terminology. Even though medical thesauri such as the Medical Subject Headings (MeSH) and related tools (e.g., the MeSH Browser) were created to help consumers find medical term definitions, the lack of direct and explicit integration of these help tools into a health retrieval system prevented them from effectively achieving their objectives. To explore this issue, we conducted an empirical study with two systems: One is a simple interface system supporting query-based searching; the other is an augmented system with two new components supporting MeSH term searching and MeSH tree browsing. A total of 45 subjects were recruited to participate in the study. The results indicated that the augmented system is more effective than the simple system in terms of improving user-perceived topic familiarity and question-answer performance, even though we did not find users spend more time on the augmented system. The two new MeSH help components played a critical role in participants' health information retrieval and were found to allow them to develop new search strategies. The findings of the study enhanced our understanding of consumers' search behaviors and shed light on the design of future health information retrieval systems.

Source

Information processing and management. 50(2014) no.1, S.24-40

0.043221936 = product of:
  0.0648329 = sum of:
    0.045130465 = weight(_text_:management in 5096) [ClassicSimilarity], result of:
      0.045130465 = score(doc=5096,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.2606825 = fieldWeight in 5096, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5096)
    0.019702438 = product of:
      0.039404877 = sum of:
        0.039404877 = weight(_text_:system in 5096) [ClassicSimilarity], result of:
          0.039404877 = score(doc=5096,freq=2.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.2435858 = fieldWeight in 5096, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5096)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

Part of a special issue on hypertext and information retrieval. Conventional information retrieval systems provide little support for browsing. Browsing is the major method of searching in hypertext system but users can become disoriented even when browsing small information space. If hypertext is to be used to support browsing in bibliographic databases navigational assistance will be required. Examines the role of thesauri as navigational aids for subject domains of Bibliographic databases. Presents the design of an experimental hypertext-based browsing inference for a thesaurus and its implementation using a commercially available hypertext program. Examines strategies for linking the thesaurus to a database

Source

Information processing and management. 29(1993) no.3, S.345-357

0.03475901 = product of:
  0.052138515 = sum of:
    0.032236047 = weight(_text_:management in 5828) [ClassicSimilarity], result of:
      0.032236047 = score(doc=5828,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.18620178 = fieldWeight in 5828, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5828)
    0.01990247 = product of:
      0.03980494 = sum of:
        0.03980494 = weight(_text_:system in 5828) [ClassicSimilarity], result of:
          0.03980494 = score(doc=5828,freq=4.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.24605882 = fieldWeight in 5828, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5828)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

Some of the fundamental activities of the software development process are related to the discipline of Requirements Engineering, whose objective is the discovery, analysis, documentation and verification of the requirements that will be part of the system. Requirements are the conditions or capabilities that software must have or perform to meet the users needs. The present study is being developed to propose a model of cooperation between Information Science and Requirements Engineering. Aims to present the analysis results on the possibilities of using the knowledge organization systems: taxonomies, thesauri and ontologies during the activities of Requirements Engineering: design, survey, elaboration, negotiation, specification, validation and requirements management. From the results obtained it was possible to identify in which stage of the Requirements Engineering process, each type of knowledge organization system could be used. We expect that this study put in evidence the need for new researchs and proposals to strengt the exchange between Information Science, as a science that has information as object of study, and the Requirements Engineering which has in the information the raw material to identify the informational needs of software users.

0.03438512 = product of:
  0.10315535 = sum of:
    0.10315535 = weight(_text_:management in 4644) [ClassicSimilarity], result of:
      0.10315535 = score(doc=4644,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.5958457 = fieldWeight in 4644, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.125 = fieldNorm(doc=4644)
  0.33333334 = coord(1/3)

0.033749826 = product of:
  0.05062474 = sum of:
    0.038683258 = weight(_text_:management in 1169) [ClassicSimilarity], result of:
      0.038683258 = score(doc=1169,freq=8.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.22344214 = fieldWeight in 1169, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0234375 = fieldNorm(doc=1169)
    0.01194148 = product of:
      0.02388296 = sum of:
        0.02388296 = weight(_text_:system in 1169) [ClassicSimilarity], result of:
          0.02388296 = score(doc=1169,freq=4.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.14763528 = fieldWeight in 1169, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0234375 = fieldNorm(doc=1169)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

T.1: Today's thesauri are mostly electronic tools, having moved on from the paper-based era when thesaurus standards were first developed. They are built and maintained with the support of software and need to integrate with other software, such as search engines and content management systems. Whereas in the past thesauri were designed for information professionals trained in indexing and searching, today there is a demand for vocabularies that untrained users will find to be intuitive. ISO 25964 makes the transition needed for the world of electronic information management. However, part 1 retains the assumption that human intellect is usually involved in the selection of indexing terms and in the selection of search terms. If both the indexer and the searcher are guided to choose the same term for the same concept, then relevant documents will be retrieved. This is the main principle underlying thesaurus design, even though a thesaurus built for human users may also be applied in situations where computers make the choices. Efficient exchange of data is a vital component of thesaurus management and exploitation. Hence the inclusion in this standard of recommendations for exchange formats and protocols. Adoption of these will facilitate interoperability between thesaurus management systems and the other computer applications, such as indexing and retrieval systems, that will utilize the data. Thesauri are typically used in post-coordinate retrieval systems, but may also be applied to hierarchical directories, pre-coordinate indexes and classification systems. Increasingly, thesaurus applications need to mesh with others, such as automatic categorization schemes, free-text search systems, etc. Part 2 of ISO 25964 describes additional types of structured vocabulary and gives recommendations to enable interoperation of the vocabularies at all stages of the information storage and retrieval process.
T.2: The ability to identify and locate relevant information among vast collections and other resources is a major and pressing challenge today. Several different types of vocabulary are in use for this purpose. Some of the most widely used vocabularies were designed a hundred years ago and have been evolving steadily. A different generation of vocabularies is now emerging, designed to exploit the electronic media more effectively. A good understanding of the previous generation is still essential for effective access to collections indexed with them. An important object of ISO 25964 as a whole is to support data exchange and other forms of interoperability in circumstances in which more than one structured vocabulary is applied within one retrieval system or network. Sometimes one vocabulary has to be mapped to another, and it is important to understand both the potential and the limitations of such mappings. In other systems, a thesaurus is mapped to a classification scheme, or an ontology to a thesaurus. Comprehensive interoperability needs to cover the whole range of vocabulary types, whether young or old. Concepts in different vocabularies are related only in that they have the same or similar meaning. However, the meaning can be found in a number of different aspects within each particular type of structured vocabulary: - within terms or captions selected in different languages; - in the notation assigned indicating a place within a larger hierarchy; - in the definition, scope notes, history notes and other notes that explain the significance of that concept; and - in explicit relationships to other concepts or entities within the same vocabulary. In order to create mappings from one structured vocabulary to another it is first necessary to understand, within the context of each different type of structured vocabulary, the significance and relative importance of each of the different elements in defining the meaning of that particular concept. ISO 25964-1 describes the key characteristics of thesauri along with additional advice on best practice. ISO 25964-2 focuses on other types of vocabulary and does not attempt to cover all aspects of good practice. It concentrates on those aspects which need to be understood if one of the vocabularies is to work effectively alongside one or more of the others. Recognizing that a new standard cannot be applied to some existing vocabularies, this part of ISO 25964 provides informative description alongside the recommendations, the aim of which is to enable users and system developers to interpret and implement the existing vocabularies effectively. The remainder of ISO 25964-2 deals with the principles and practicalities of establishing mappings between vocabularies.

0.030872812 = product of:
  0.046309218 = sum of:
    0.032236047 = weight(_text_:management in 3276) [ClassicSimilarity], result of:
      0.032236047 = score(doc=3276,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.18620178 = fieldWeight in 3276, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3276)
    0.01407317 = product of:
      0.02814634 = sum of:
        0.02814634 = weight(_text_:system in 3276) [ClassicSimilarity], result of:
          0.02814634 = score(doc=3276,freq=2.0), product of:
            0.16177002 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.051362853 = queryNorm
            0.17398985 = fieldWeight in 3276, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3276)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Content

Inhalt: 1. From classifications to ontologies Knowledge - A new concept of knowledge - Knowledge and information - Knowledge organisation - Knowledge organisation and representation - Cognitive sciences - Talent management - Learning systematisation - Historical evolution - From classification to knowledge organisation - Why ontologies exist - Ontologies - The structure of ontologies 2. Taxonomies and thesauri From ordering to taxonomy - The origins of taxonomy - Hierarchical and horizontal order - Correlation with classifications - Taxonomy in computer science - Computing taxonomy - Definitions - Virtual taxonomy, cybernetic taxonomy - Taxonomy in Information Science - Similarities between taxonomies and thesauri - ifferences between taxonomies and thesauri 3. Thesauri Terminology in classification systems - Terminological languages - Thesauri - Thesauri definitions - Conditions that a thesaurus must fulfil - Historical evolution - Classes of thesauri 4. Thesauri in (cladist) systematics Systematics - Systematics as a noun - Definitions and historic evolution over time - Differences between taxonomy and systematics - Systematics in thesaurus construction theory - Classic, numerical and cladist systematics - Classic systematics in information science - Numerical systematics in information science - Thesauri in cladist systematics - Systematics in information technology - Some examples 5. Thesauri in systems theory Historical evolution - Approach to systems - Systems theory applied to the construction of thesauri - Components - Classes of system - Peculiarities of these systems - Working methods - Systems theory applied to ontologies and taxonomies

0.030086977 = product of:
  0.09026093 = sum of:
    0.09026093 = weight(_text_:management in 4713) [ClassicSimilarity], result of:
      0.09026093 = score(doc=4713,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.521365 = fieldWeight in 4713, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.109375 = fieldNorm(doc=4713)
  0.33333334 = coord(1/3)

Source

Information processing and management. 29(1993) no.3, S.345-358

0.029778387 = product of:
  0.08933516 = sum of:
    0.08933516 = weight(_text_:management in 4859) [ClassicSimilarity], result of:
      0.08933516 = score(doc=4859,freq=6.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.51601756 = fieldWeight in 4859, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0625 = fieldNorm(doc=4859)
  0.33333334 = coord(1/3)

Abstract

Basic concepts relevant to controlled vocabularies and outlines criteria for evaluating vocabulary management software are defined. A comparison of four representative vocabulary management products is provided in an accompanying table.

0.02578884 = product of:
  0.077366516 = sum of:
    0.077366516 = weight(_text_:management in 1386) [ClassicSimilarity], result of:
      0.077366516 = score(doc=1386,freq=2.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.44688427 = fieldWeight in 1386, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.09375 = fieldNorm(doc=1386)
  0.33333334 = coord(1/3)

Footnote

Übers. d. Titels: Computerised thesaurus management: state of the art

0.02517645 = product of:
  0.07552935 = sum of:
    0.07552935 = sum of:
      0.03377561 = weight(_text_:system in 1181) [ClassicSimilarity], result of:
        0.03377561 = score(doc=1181,freq=2.0), product of:
          0.16177002 = queryWeight, product of:
            3.1495528 = idf(docFreq=5152, maxDocs=44218)
            0.051362853 = queryNorm
          0.20878783 = fieldWeight in 1181, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.1495528 = idf(docFreq=5152, maxDocs=44218)
            0.046875 = fieldNorm(doc=1181)
      0.041753743 = weight(_text_:22 in 1181) [ClassicSimilarity], result of:
        0.041753743 = score(doc=1181,freq=2.0), product of:
          0.17986396 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051362853 = queryNorm
          0.23214069 = fieldWeight in 1181, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046875 = fieldNorm(doc=1181)
  0.33333334 = coord(1/3)

Abstract

The Nuovo soggettario, the official Italian subject indexing system edited by the National Central Library of Florence, is made up of interactive components, the core of which is a general thesaurus and some rules of a conventional syntax for subject string construction. The Nuovo soggettario Thesaurus is in compliance with ISO 25964: 2011-2013, IFLA LRM, and FAIR principle (findability, accessibility, interoperability, and reusability). Its open data are available in the Zthes, MARC21, and in SKOS formats and allow for interoperability with l library, archive, and museum databases. The Thesaurus's macrostructure is organized into four fundamental macro-categories, thirteen categories, and facets. The facets allow for the orderly development of hierarchies, thereby limiting polyhierarchies and promoting the grouping of homogenous concepts. This paper addresses the main features and peculiarities which have characterized the consistent development of this categorical structure and its effects on the syntactic sphere in a predominantly pre-coordinated usage context.

Date

26.11.2023 18:59:22

0.024313949 = product of:
  0.07294185 = sum of:
    0.07294185 = weight(_text_:management in 3795) [ClassicSimilarity], result of:
      0.07294185 = score(doc=3795,freq=4.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.42132655 = fieldWeight in 3795, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0625 = fieldNorm(doc=3795)
  0.33333334 = coord(1/3)

Abstract

Ein Fachthesaurus von einer Größenordnung, die beeindruckt: Der Thesaurus Technik und Management umfaßt 48.000 deutsche und 32.000 englische Fachwörter, die in 34.000 Begriffsfamilien zusammengefaßt werden. Er ist erhältlich als Buch und CD-ROM. FIZ Technik überarbeitete, aktualisierte, mischte und vereinigte 6 einzelne Fachthesauri und ersetzte sie durch den Gesamtthesaurus Technik und Management

0.024313949 = product of:
  0.07294185 = sum of:
    0.07294185 = weight(_text_:management in 4864) [ClassicSimilarity], result of:
      0.07294185 = score(doc=4864,freq=4.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.42132655 = fieldWeight in 4864, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0625 = fieldNorm(doc=4864)
  0.33333334 = coord(1/3)

Abstract

Amy Warner, Project Leader for NISO's Thesaurus Development Team, discusses her involvement in the revision of Z39.19 Guidelines for the Construction, Format, and Management of Monolingual Thesauri. Keywords: Z39.19 Guidelines for the Construction, Format, and Management of Monolingual Thesauri, thesaurus standards, controlled vocabulary standards, National Information Standards Organization, NISO

0.021274706 = product of:
  0.06382412 = sum of:
    0.06382412 = weight(_text_:management in 3892) [ClassicSimilarity], result of:
      0.06382412 = score(doc=3892,freq=4.0), product of:
        0.17312427 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.051362853 = queryNorm
        0.36866072 = fieldWeight in 3892, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3892)
  0.33333334 = coord(1/3)

Abstract

Thesaurus data structures and exchange formats (ways of tagging and encoding thesauri for transfer between computer applications) are discussed. Single- and multiple-user thesaurus software is functionally similar, apart from scale. Several lists of requirements for such software have been published, and important aspects are summarized here, including input, editing, output, and the interfaces used by indexers and searchers. The way in which thesaurus software may be extended to cover other types of controlled vocabularies is covered briefly, followed by issues that arise in management and updating of thesauri, including changes to collections of documents indexed by previous versions and the mapping and merging of thesauri to provide a common search interface.