Search (1981 results, page 3 of 100)

  • × year_i:[2010 TO 2020}
  1. Maurer, M.B.; Shakeri, S.: Disciplinary differences : LCSH and keyword assignment for ETDs from different disciplines (2016) 0.04
    0.042906743 = product of:
      0.17162697 = sum of:
        0.17162697 = weight(_text_:headings in 122) [ClassicSimilarity], result of:
          0.17162697 = score(doc=122,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.5307314 = fieldWeight in 122, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.0546875 = fieldNorm(doc=122)
      0.25 = coord(1/4)
    
    Abstract
    This research concerns the frequency of the assignment of author-supplied keyword strings and cataloger supplied subject heading strings within a library catalog. The results reveal that, on average, more author-assigned keywords and more cataloger-assigned Library of Congress Subject Headings were assigned to works emerging from the arts & humanities than to works emerging from the social sciences and science, technology, engineering, and mathematics (STEM) disciplines. STEM disciplines in particular received a lower amount of topical metadata, in part because of the under-assignment of name/title, geographical, and corporate subject headings. These findings reveal how librarians could increase their understanding of how topical access is functioning within academic disciplines.
  2. Bone, C.; Lougheed, B.: Library of Congress Subject Headings related to indigenous peoples : changing LCSH for use in a Canadian archival context (2018) 0.04
    0.042906743 = product of:
      0.17162697 = sum of:
        0.17162697 = weight(_text_:headings in 168) [ClassicSimilarity], result of:
          0.17162697 = score(doc=168,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.5307314 = fieldWeight in 168, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.0546875 = fieldNorm(doc=168)
      0.25 = coord(1/4)
    
    Abstract
    The Association for Manitoba Archives has created a database where members can deposit archival descriptions to provide a central search for users. Library of Congress Subject Headings (LCSH) were chosen as the controlled subject vocabulary to use in the descriptions, but changes were made to LCSH to better describe material about or by Indigenous peoples. Examples include: the word "Indian"; geographic place embedded in terms such as "Indians of North America"; changes related to Manitoba peoples specifically; and miscellaneous changes not part of a larger pattern. New terms were also added.
  3. Mullin, C.A.: ¬An amicable divorce : programmatic derivation of faceted data from Library of Congress Subject Headings for music (2018) 0.04
    0.042906743 = product of:
      0.17162697 = sum of:
        0.17162697 = weight(_text_:headings in 183) [ClassicSimilarity], result of:
          0.17162697 = score(doc=183,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.5307314 = fieldWeight in 183, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.0546875 = fieldNorm(doc=183)
      0.25 = coord(1/4)
    
    Abstract
    Music catalogers have embraced in current cataloging the flexibility, intuitiveness, and expressivity afforded by the Library of Congress's new faceted vocabularies. In order to realize the full benefits to discovery these vocabularies offer, however, methods for programmatically assigning faceted terms retrospectively to existing metadata for music resources are required in order to mitigate the costs of manual enhancement of legacy data. This article describes efforts to repurpose existing Library of Congress Subject Headings as faceted data, taking advantage of recent developments in the MARC 21 formats. Limitations inherent to this process and ideas for future directions are described.
  4. Short, M.: Text mining and subject analysis for fiction; or, using machine learning and information extraction to assign subject headings to dime novels (2019) 0.04
    0.042906743 = product of:
      0.17162697 = sum of:
        0.17162697 = weight(_text_:headings in 481) [ClassicSimilarity], result of:
          0.17162697 = score(doc=481,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.5307314 = fieldWeight in 481, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.0546875 = fieldNorm(doc=481)
      0.25 = coord(1/4)
    
    Abstract
    This article describes multiple experiments in text mining at Northern Illinois University that were undertaken to improve the efficiency and accuracy of cataloging. It focuses narrowly on subject analysis of dime novels, a format of inexpensive fiction that was popular in the United States between 1860 and 1915. NIU holds more than 55,000 dime novels in its collections, which it is in the process of comprehensively digitizing. Classification, keyword extraction, named-entity recognition, clustering, and topic modeling are discussed as means of assigning subject headings to improve their discoverability by researchers and to increase the productivity of digitization workflows.
  5. Harpring, P.: Introduction to controlled vocabularies : terminology for art, architecture, and other cultural works (2010) 0.04
    0.042466663 = product of:
      0.16986665 = sum of:
        0.16986665 = weight(_text_:headings in 164) [ClassicSimilarity], result of:
          0.16986665 = score(doc=164,freq=12.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.5252878 = fieldWeight in 164, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.03125 = fieldNorm(doc=164)
      0.25 = coord(1/4)
    
    LCSH
    Subject headings / Cultural property
    Subject headings / Art
    Subject headings / Architecture
    Subject
    Subject headings / Cultural property
    Subject headings / Art
    Subject headings / Architecture
  6. Willis, C.; Losee, R.M.: ¬A random walk on an ontology : using thesaurus structure for automatic subject indexing (2013) 0.04
    0.04191779 = product of:
      0.08383558 = sum of:
        0.014487808 = weight(_text_:und in 2016) [ClassicSimilarity], result of:
          0.014487808 = score(doc=2016,freq=2.0), product of:
            0.1478073 = queryWeight, product of:
              2.217899 = idf(docFreq=13141, maxDocs=44421)
              0.06664293 = queryNorm
            0.098018214 = fieldWeight in 2016, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.217899 = idf(docFreq=13141, maxDocs=44421)
              0.03125 = fieldNorm(doc=2016)
        0.06934777 = weight(_text_:headings in 2016) [ClassicSimilarity], result of:
          0.06934777 = score(doc=2016,freq=2.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.21444786 = fieldWeight in 2016, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.03125 = fieldNorm(doc=2016)
      0.5 = coord(2/4)
    
    Abstract
    Relationships between terms and features are an essential component of thesauri, ontologies, and a range of controlled vocabularies. In this article, we describe ways to identify important concepts in documents using the relationships in a thesaurus or other vocabulary structures. We introduce a methodology for the analysis and modeling of the indexing process based on a weighted random walk algorithm. The primary goal of this research is the analysis of the contribution of thesaurus structure to the indexing process. The resulting models are evaluated in the context of automatic subject indexing using four collections of documents pre-indexed with 4 different thesauri (AGROVOC [UN Food and Agriculture Organization], high-energy physics taxonomy [HEP], National Agricultural Library Thesaurus [NALT], and medical subject headings [MeSH]). We also introduce a thesaurus-centric matching algorithm intended to improve the quality of candidate concepts. In all cases, the weighted random walk improves automatic indexing performance over matching alone with an increase in average precision (AP) of 9% for HEP, 11% for MeSH, 35% for NALT, and 37% for AGROVOC. The results of the analysis support our hypothesis that subject indexing is in part a browsing process, and that using the vocabulary and its structure in a thesaurus contributes to the indexing process. The amount that the vocabulary structure contributes was found to differ among the 4 thesauri, possibly due to the vocabulary used in the corresponding thesauri and the structural relationships between the terms. Each of the thesauri and the manual indexing associated with it is characterized using the methods developed here.
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  7. Hook, P.A.; Gantchev, A.: Using combined metadata sources to visualize a small library (OBL's English Language Books) (2017) 0.04
    0.03753558 = product of:
      0.15014233 = sum of:
        0.15014233 = weight(_text_:headings in 4870) [ClassicSimilarity], result of:
          0.15014233 = score(doc=4870,freq=6.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.46429324 = fieldWeight in 4870, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.0390625 = fieldNorm(doc=4870)
      0.25 = coord(1/4)
    
    Abstract
    Data from multiple knowledge organization systems are combined to provide a global overview of the content holdings of a small personal library. Subject headings and classification data are used to effectively map the combined book and topic space of the library. While harvested and manipulated by hand, the work reveals issues and potential solutions when using automated techniques to produce topic maps of much larger libraries. The small library visualized consists of the thirty-nine, digital, English language books found in the Osama Bin Laden (OBL) compound in Abbottabad, Pakistan upon his death. As this list of books has garnered considerable media attention, it is worth providing a visual overview of the subject content of these books - some of which is not readily apparent from the titles. Metadata from subject headings and classification numbers was combined to create book-subject maps. Tree maps of the classification data were also produced. The books contain 328 subject headings. In order to enhance the base map with meaningful thematic overlay, library holding count data was also harvested (and aggregated from duplicates). This additional data revealed the relative scarcity or popularity of individual books.
  8. Golub, K.: Subject access to information : an interdisciplinary approach (2015) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 1134) [ClassicSimilarity], result of:
          0.14710884 = score(doc=1134,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 1134, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=1134)
      0.25 = coord(1/4)
    
    LCSH
    Subject headings
    Subject
    Subject headings
  9. Functional requirements for subject authority data (FRSAD) : a conceptual model (2011) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 3880) [ClassicSimilarity], result of:
          0.14710884 = score(doc=3880,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 3880, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=3880)
      0.25 = coord(1/4)
    
    LCSH
    Subject headings
    Subject
    Subject headings
  10. Yi, K.; Chan, L.M.: Revisiting the syntactical and structural analysis of Library of Congress Subject Headings for the digital environment (2010) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 418) [ClassicSimilarity], result of:
          0.14710884 = score(doc=418,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 418, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=418)
      0.25 = coord(1/4)
    
    Abstract
    With the current information environment characterized by the proliferation of digital resources, including collaboratively created and shared resources, Library of Congress Subject Headings (LCSH) is facing the challenges of effective and efficient subject-based organization and retrieval of digital resources. To explore the feasibility of utilizing LCSH in a digital environment, we might need to revisit its basic characteristics. The objectives of our study were to analyze LCSH in both syntactic and relational structures, to discover the structural characteristics of LCSH, and to identify problems and issues for the feasibility of LCSH as an effective subject access tool. This study reports and discusses issues raised by the syntactic and hierarchical structures of LCSH that present challenges to its use in a networked environment. Given the results of this study, we recommend a number of provisional future directions for the development of LCSH towards further becoming a viable system for digital and networked resources.
  11. O'Neill, E.T.; Bennett, R.; Kammerer, K.: Using authorities to improve subject searches (2012) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 1310) [ClassicSimilarity], result of:
          0.14710884 = score(doc=1310,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 1310, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=1310)
      0.25 = coord(1/4)
    
    Abstract
    Authority files have played an important role in improving the quality of indexing and subject cataloging. Although authorities can significantly improve search by increasing the number of access points, they are rarely an integral part of the information retrieval process, particularly end-users searches. A retrieval prototype, searchFAST, was developed to test the feasibility of using an authority file as an index to bibliographic records. searchFAST uses FAST (Faceted Application of Subject Terminology) as an index to OCLC's WorldCat.org bibliographic database. The searchFAST methodology complements, rather than replaces, existing WorldCat.org access. The bibliographic file is searched indirectly; first the authority file is searched to identify appropriate subject headings, then the headings are used to retrieve the matching bibliographic records. The prototype demonstrates the effectiveness and practicality of using an authority file as an index. Searching the authority file leverages authority control work by increasing the number of access points while supporting a simple interface designed for end-users.
  12. Leydesdorff, L.; Rotolo, D.; Rafols, I.: Bibliometric perspectives on medical innovation using the medical subject headings of PubMed (2012) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 1494) [ClassicSimilarity], result of:
          0.14710884 = score(doc=1494,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 1494, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=1494)
      0.25 = coord(1/4)
    
    Abstract
    Multiple perspectives on the nonlinear processes of medical innovations can be distinguished and combined using the Medical Subject Headings (MeSH) of the MEDLINE database. Focusing on three main branches-"diseases," "drugs and chemicals," and "techniques and equipment"-we use base maps and overlay techniques to investigate the translations and interactions and thus to gain a bibliometric perspective on the dynamics of medical innovations. To this end, we first analyze the MEDLINE database, the MeSH index tree, and the various options for a static mapping from different perspectives and at different levels of aggregation. Following a specific innovation (RNA interference) over time, the notion of a trajectory which leaves a signature in the database is elaborated. Can the detailed index terms describing the dynamics of research be used to predict the diffusion dynamics of research results? Possibilities are specified for further integration between the MEDLINE database on one hand, and the Science Citation Index and Scopus (containing citation information) on the other.
  13. Leydesdorff, L.; Opthof, T.: Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge : a new routine (2013) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 1943) [ClassicSimilarity], result of:
          0.14710884 = score(doc=1943,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 1943, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=1943)
      0.25 = coord(1/4)
    
    Abstract
    Citation analysis of documents retrieved from the Medline database (at the Web of Knowledge) has been possible only on a case-by-case basis. A technique is presented here for citation analysis in batch mode using both Medical Subject Headings (MeSH) at the Web of Knowledge and the Science Citation Index at the Web of Science (WoS). This freeware routine is applied to the case of "Brugada Syndrome," a specific disease and field of research (since 1992). The journals containing these publications, for example, are attributed to WoS categories other than "cardiac and cardiovascular systems", perhaps because of the possibility of genetic testing for this syndrome in the clinic. With this routine, all the instruments available for citation analysis can now be used on the basis of MeSH terms. Other options for crossing between Medline, WoS, and Scopus are also reviewed.
  14. Lucarelli, A.; Viti, E.: Florence-Washington round trip : ways and intersections between semantic indexing tools in different languages (2015) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 2886) [ClassicSimilarity], result of:
          0.14710884 = score(doc=2886,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 2886, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=2886)
      0.25 = coord(1/4)
    
    Abstract
    This article presents an Italian experience of developing streamlined semantic interoperability between the Italian Thesaurus of Nuovo soggettario and the Library of Congress Subject Headings (LCSH). This ongoing project must take into consideration the differences between the two indexing tools, while the criteria on which the resulting actions are based are being clarified continually. Reciprocal interoperability, thanks to the Simple Knowledge Organization System format, enables us to create links with English language subject headings. The National Central Library of Florence is studying methods of automatically catching LCSH equivalents and the question of how to take advantage of both Semantic Web outputs and the multilingual dataset of Wikidata.
  15. Vaidya, P.; Harinarayana, N.S.: ¬The comparative and analytical study of LibraryThing tags with Library of Congress Subject Headings (2016) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 3492) [ClassicSimilarity], result of:
          0.14710884 = score(doc=3492,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 3492, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=3492)
      0.25 = coord(1/4)
    
    Abstract
    The internet in its Web 2.0 version has given an opportunity among users to be participative and the chance to enhance the existing system, which makes it dynamic and collaborative. The activity of social tagging among researchers to organize the digital resources is an interesting study among information professionals. The one way of organizing the resources for future retrieval through these user-generated terms makes an interesting analysis by comparing them with professionally created controlled vocabularies. Here in this study, an attempt has been made to compare Library of Congress Subject Headings (LCSH) terms with LibraryThing social tags. In this comparative analysis, the results show that social tags can be used to enhance the metadata for information retrieval. But still, the uncontrolled nature of social tags is a concern and creates uncertainty among researchers.
  16. Howard, S.A.; Knowlton, S.A..: Browsing through bias : the Library of Congress Classification and Subject Headings for African American Studies and LGBTQIA Studies (2018) 0.04
    0.03677721 = product of:
      0.14710884 = sum of:
        0.14710884 = weight(_text_:headings in 519) [ClassicSimilarity], result of:
          0.14710884 = score(doc=519,freq=4.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4549126 = fieldWeight in 519, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.046875 = fieldNorm(doc=519)
      0.25 = coord(1/4)
    
    Abstract
    The knowledge organization system prepared by the Library of Congress (LC) and widely used in academic libraries has some disadvantages for researchers in the fields of African American studies and LGBTQIA studies. The interdisciplinary nature of those fields means that browsing in stacks or shelflists organized by LC Classification requires looking in numerous locations. As well, persistent bias in the language used for subject headings, as well as the hierarchy of classification for books in these fields, continues to "other" the peoples and topics that populate these titles. This paper offers tools to help researchers have a holistic view of applicable titles across library shelves and hopes to become part of a larger conversation regarding social responsibility and diversity in the library community.
  17. Walsh, J.: ¬The use of Library of Congress Subject Headings in digital collections (2011) 0.03
    0.034673885 = product of:
      0.13869554 = sum of:
        0.13869554 = weight(_text_:headings in 549) [ClassicSimilarity], result of:
          0.13869554 = score(doc=549,freq=8.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4288957 = fieldWeight in 549, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.03125 = fieldNorm(doc=549)
      0.25 = coord(1/4)
    
    Abstract
    Purpose - This paper attempts to explain the wide dissemination of Library of Congress Subject Headings (LCSH) within digital libraries and presents some of the advantages and disadvantages of using this controlled vocabulary in digital collections. The paper also presents other classifications used in digital collections for subject access and explores ways of improving search functionality in digital collections that employ LCSH. Design/methodology/approach - Unlike traditional libraries that use Library of Congress Classification for organization and retrieval, digital libraries use metadata forms for organization and retrieval. The collections exist in cyberspace of the internet which is known for containing the universe of knowledge. The use of LCSH for information retrieval has been widely criticized for its difficulty of use and its information retrieval effectiveness in online environments. The Library of Congress (LOC) has claimed the headings were not based on comprehensive principles nor ever intended to cover the universe of knowledge. Despite these claims and criticisms, LCSH is the most popular choice for subject access in digital libraries. Findings - The number of digital collections increases every year and LCSH is still the most popular choice of controlled vocabulary for subject access. Of the numerous criticisms, difficulties of use and user unfamiliarity are the greatest disadvantages of using LCSH for subject access. Average users only have a vague notion of what they are looking for when initializing a search. More work is required in automated generation of subject headings and increased usage of LCSH in faceted search retrieval systems. This will provide users with better access to the LCSH used in the back end of information retrieval. Originality/value - The Greek researchers who developed the Dissertation DSPace system believe this type of module will eventually replace the traditional keyword-based indexing back ends employed by many information retrieval modules within current digital library systems. The system offers the type of access and interactivity that will acquaint users with how LCSH looks and is used. Faceted search and automated pattern matching using an ontology based on LCSH have the best promise of overcoming the disadvantages that have always plagued the LOC-controlled vocabulary. These retrieval techniques give LCSH an opportunity to finally achieve the optimal precision and recall it has so far failed to deliver.
  18. Klenczon, W.: Jzyk Hasel Przedmiotowych Biblioteki Narodowej (National Library of Poland Subject Headings) :from card catalogs to Digital Library : some questions about the future of a Local Subject Heading Systems in the changing world of information retrieval (2011) 0.03
    0.034673885 = product of:
      0.13869554 = sum of:
        0.13869554 = weight(_text_:headings in 2809) [ClassicSimilarity], result of:
          0.13869554 = score(doc=2809,freq=2.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4288957 = fieldWeight in 2809, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.0625 = fieldNorm(doc=2809)
      0.25 = coord(1/4)
    
  19. Strader, C.R.: Citation analysis (2012) 0.03
    0.034673885 = product of:
      0.13869554 = sum of:
        0.13869554 = weight(_text_:headings in 3601) [ClassicSimilarity], result of:
          0.13869554 = score(doc=3601,freq=2.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4288957 = fieldWeight in 3601, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.0625 = fieldNorm(doc=3601)
      0.25 = coord(1/4)
    
    Abstract
    This study is a citation analysis of a set of theses and dissertations in the Ohio State University's online catalog, for which the author-assigned keywords and cataloger-assigned Library of Congress Subject Headings (LCSH) are known. Correlations are sought between the types and ages of resources cited and the number of unique keywords and unique LCSH that were found. The author presents results found in three general discipline areas: arts and humanities, the social sciences, and science, technology, engineering, and medicine.
  20. Gil-Leiva, I.; Lopes Fujita, M.S.; Díaz Ortuño, P.M.; Reis, D.M. dos: Is the massive incorporation of e-books into university libraries devaluing the technical processes related to the assigning of subject headings and classification codes? (2018) 0.03
    0.034673885 = product of:
      0.13869554 = sum of:
        0.13869554 = weight(_text_:headings in 757) [ClassicSimilarity], result of:
          0.13869554 = score(doc=757,freq=2.0), product of:
            0.32337824 = queryWeight, product of:
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.06664293 = queryNorm
            0.4288957 = fieldWeight in 757, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8524013 = idf(docFreq=942, maxDocs=44421)
              0.0625 = fieldNorm(doc=757)
      0.25 = coord(1/4)
    

Languages

  • d 1631
  • e 321
  • a 1
  • More… Less…

Types

  • a 1470
  • el 414
  • m 286
  • x 74
  • s 62
  • r 26
  • n 9
  • i 4
  • b 3
  • p 2
  • v 2
  • ms 1
  • More… Less…

Themes

Subjects

Classifications