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  • × author_ss:"Chan, L.M."
  1. Chan, L.M.: Library of Congress Subject Headings : principles and application (1995) 0.02 
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    Date
    25.11.2005 18:37:22
    Imprint
    Englewood, CO : Libraries Unlimited
  2. Chan, L.M.; Hodges, T.L.: Library of Congress Classification (LCC) (2009) 0.01 
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    Abstract
    The Library of Congress Classification (LCC), originally designed for classifying the Library's own collection, is now used in a wide range of libraries, both in the United States and abroad. This entry recounts its history and development from its genesis to the present time, leading up to an explanation of LCC structure, tables, and notation. It then considers the system's potential for wider application in the online age, through speculation on using LCC as a tool for (a) partitioning large files; (b) generating domain-specific taxonomies; and (c) integrating classification and controlled subject terms for improved retrieval in the online public access catalog (OPAC) and the Internet. Finally, analyzing both its strong and relatively weak features, it addresses the question of whether in its current state LCC is in all respects ready for playing such roles
    Date
    27. 8.2011 14:22:42
  3. Chan, L.M.: Library of Congress Classification as an online retrieval tool : potentials and limitations (1986) 0.01 
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    Source
    Information technology and libraries. 5(1986), S.181-192
  4. Chan, L.M.: Library of Congress Subject Headings : principles and application (1986) 0.01 
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    Imprint
    Littleton, CO : Libraries Unlimited
  5. Chan, L.M.: Immroth's guide to the Library of Congress Classification (1980) 0.01 
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    Imprint
    Littleton, Colo. : Libraries Unlimited
  6. Chan, L.M.: ¬A guide to the Library of Congress Classification (1999) 0.01 
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    Imprint
    Littleton, Colo. : Libraries Unlimited
  7. Chan, L.M.: Inter-indexer consistency in subject cataloging (1989) 0.01 
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    Abstract
    The purpose of the current study has been twofold: (1) to develop a valid methodology for studying indexing consistency in MARC records and, (2) to study such consistency in subject cataloging practice between non-LC libraries and the Library of Congress
    Source
    Information technology and libraries. 8(1989), S.349-358
  8. Chan, L.M.: Library of Congress Subject Headings : principles and application (2005) 0.01 
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    Imprint
    Littleton, Colo. : Libraries Unlimited
  9. Chan, L.M.: Library of Congress Classification : alternative provisions (1995) 0.01 
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    Abstract
    The Library of Congress Classification (LCC), being a system originally and specifically designed for the Library's own collection, generally eschews alternatives. Within the LCC schedules, alternatives are found occasionally in earlier editions; there are no alternative numbers in recently developed or revised schedules. On the other hand, many alternative numbers representing different treatment of specific types of materials such as bibliographies and monographic series are provided in LC MARC records. Such numbers may be used by other libraries that prefer the alternative treatment. In addition, many LC MARC records also include class or call numbers based on other classification schemes, including the Dewey Decimal Classification (DDC), the National Library of Medicine Classification (NLM), and the Superintendent of Documents Classification. The alternative class numbers assigned from other classification systems are provided as services to libraries not using the Library of Congress Classification.
  10. Chan, L.M.: Subject analysis tools online : the challenge ahead (1990) 0.00 
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    Source
    Information technology and libraries. 9(1990), S.259-262
  11. Chan, L.M.; Hodges, T.: Subject cataloguing and classification : the late 1980s and beyond (1990) 0.00 
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    Imprint
    Englewood, CO : Libraries unlimited
  12. Chan, L.M.; Mitchell, J.S.: Dewey Decimal Classification : principles and applications (2003) 0.00 
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    Object
    DDC-22
  13. Chan, L.M.: Classification present and future (1995) 0.00 
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    Footnote
    Paper presented at the 36th Allerton Institute, 23-25 Oct 94, Allerton Park, Monticello, IL: "New Roles for Classification in Libraries and Information Networks: Presentation and Reports"
  14. O'Neill, E.T.; Chan, L.M.: FAST - a new approach to controlled subject access (2008) 0.00 
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    Abstract
    Recent trends, driven to a large extent by the rapid proliferation of digital resources, are forcing changes in bibliographic control to make it easier to use, understand, and apply subject data. Subject headings are no exception. The enormous volume and rapid growth of digital libraries and repositories and the emergence of numerous metadata schemes have spurred a reexamination of the way subject data are to be provided for such resources efficiently and effectively. To address this need, OCLC in cooperation with the Library of Congress, has taken a new approach, called FAST (Faceted Application of Subject Terminology). FAST headings are based on the existing vocabulary in Library of Congress Subject Headings (LCSH), but are applied with a simpler syntax than required by Library of Congress application policies. Adapting the LCSH vocabulary in a simplified faceted syntax retains the rich vocabulary of LCSH while making it easier to understand, control, apply, and use.
  15. Chan, L.M.; Vizine-Goetz, D.: Towards a computer-generated subject validation file : feasibility and usefulness (1998) 0.00 
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    Abstract
    Recognition, by libraries, of the need for improved efficiency and reliability in subject authority control in catalogues led to a study of the feasibility of automatically creating a subject heading validation file by scanning the OLUC. The premises were: that although the file would not be axhaustive, it would contain the majority of frequently used headings; and that the predicted level of accurary in the file would be high. A sample file of Library of Congress assigned subject headings, from the OCLC Subject Headings Corrections database was analyzed. Results showed that: the frequency of use varies inversely with the number of headings at a given rrate of use; a small number of headings with high frequencies of use accounts for the majority of total use, while a large proportion shows very low frequency of use; topical headings account for 2/3 of assigned headings; and error and obsolescence rates are both low and are in inverse relationship to the frequency of heading use. Concludes that an automatically generated subject heading validation file is feasible and could serve various purposes, including: verification of subject heading strings constructed by cataloguers; updating of subject headings in catalogue maintenance; and validation of subject headings during retrospective catalogue conversion
  16. Chan, L.M.; Zeng, M.L.: Metadata interoperability and standardization - a study of methodology, part I : achieving interoperability at the schema level (2006) 0.00 
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    Abstract
    The rapid growth of Internet resources and digital collections has been accompanied by a proliferation of metadata schemas, each of which has been designed based on the requirements of particular user communities, intended users, types of materials, subject domains, project needs, etc. Problems arise when building large digital libraries or repositories with metadata records that were prepared according to diverse schemas. This article (published in two parts) contains an analysis of the methods that have been used to achieve or improve interoperability among metadata schemas and applications, for the purposes of facilitating conversion and exchange of metadata and enabling cross-domain metadata harvesting and federated searches. From a methodological point of view, implementing interoperability may be considered at different levels of operation: schema level, record level, and repository level. Part I of the article intends to explain possible situations in which metadata schemas may be created or implemented, whether in individual projects or in integrated repositories. It also discusses approaches used at the schema level. Part II of the article will discuss metadata interoperability efforts at the record and repository levels.
  17. Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000) 0.00 
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    Date
    27. 5.2001 16:22:21
  18. O'Neill, E.T.; Chan, L.M.; Childress, E.; Dean, R.; El-Hoshy, L.M.; Vizine-Goetz, D.: Form subdivisions : their identification and use in LCSH (2001) 0.00 
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    Date
    10. 9.2000 17:38:22

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