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Tillett, B.B.: Bibliographic relationships (2001)
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Mountcastle, V.B.: ¬An organizing principle for cerebral function : the unit model and the distributed system (1978)
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- Source
- Mindful brain: cortical organization and the group-selective theory of higher brain function. Eds.: Gerald M. Edelman u. B.B. Mountcastle
- Type
- a
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Tillett, B.B.: ¬Eine virtuelle internationale Normdatei (2001)
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-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
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- Abstract
- Document representations for text classification are typically based on the classical Bag-Of-Words paradigm. This approach comes with deficiencies that motivate the integration of features on a higher semantic level than single words. In this paper we propose an enhancement of the classical document representation through concepts extracted from background knowledge. Boosting is used for actual classification. Experimental evaluations on two well known text corpora support our approach through consistent improvement of the results.
- Content
- Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
- Date
- 8. 1.2013 10:22:32
- Type
- a
-
Tillett, B.B.: Authority control : state of the art and new perspectives (2004)
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- Abstract
- Authority control is necessary for meeting the catalog's objectives of enabling users to find the works of an author and to collocate all works of a person or corporate body. This article looks at the current state of authority control as compared to the visions of the 1979 LITA (Library Information and Technology Association) Institutes and the 1984 Authority Control Interest Group. It explores a new view of IFLA's Universal Bibliographic Control (UBC) and a future vision of a virtual international authority file as a building block for the Semantic Web and reinforces the importance of authority control to improve the precision of searches of large databases or the Internet.
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- a
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Alexander, B.B.; Gyeszly, S.D.: OPAC or card catalog : patrons preference in an academic library (1991)
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- Abstract
- Since the closing of the Sterling C. Evans Library author/title card catalog on march 6, 1989, librarians have observed a number of patrons who continued to use that catalog, even though NOTIS, the OPAC offered more comprehensive and current access to library holdings. To determine the reasons for this use, the authors prepared a one-page questionnaire, focusing on the users' preference for an inadequate card catalog in an environment which offers a superior OPAC. Card catalog patrons were then surveyed in order to gather data and build a user profile. Survey results were tabulated and analyzed, revealing the underlying reasons for users' preference for the card or online catalog. Conclusions will provide direction for improvements in users' access to online catalogs
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- a
-
Kurth, M.; Tillett, B.B.: ¬An interview with Barbara B. Tillett (2001)
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- Abstract
- Barbara B. Tillett discusses her career, including her roles as Director, Integrated Library System Program Office, and Chief, Cataloging Policy and Support Office, at the Library of Congress, and her work as a researcher in the area of bibliographic relationships. Topics include the following: current ILS functionality, benefits, and losses; LC's activities in digital futures planning; development of the Functional Requirements for Bibliographic Records; her role in the Joint Steering Committee for Revision of AACR, her part in writing proposals and responses to proposals sent to JSC, and JSC initiatives of the past few years; her work in IFLA and other international organizations and projects; the possible development of a connection between existing international authority files; and other aspects of the emerging internationalization in library catalogs.
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- a
-
Leazer, G.H.: Recent research on the sequential bibliographic relationship and its implications for standards and the library catalog : an examination of serials (1996)
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- Abstract
- Evaluates current research into bibliographic relationships sparked off by B.B. Tillett's taxonomy of bibliographic relationships (LRTS 35(1991) no.4, S.393-405) and R.P. Smiraglia's taxonomy of the derivative bibliographic relationship (PhD dissertation, Chicago Univ., Graduate Library School, 1992). These researches provide the context for a discussion of recent research and standards work. Reevaluates research on the sequential relationship drawn from work conducted on periodicals and the implications of that research is applied to cataloguing system design. Evaluates the conceptual designs proposed by researchers such as G.H. Leazer and M. Gorman's and uses them in a critique of the USMARC format for bibliographic description
- Type
- a
-
Tillett, B.B.: Catalog it once for all : a history of cooperative cataloging in the United States prior to 1967 (before MARC) (1993)
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- Abstract
- Librarians in the United States always seem to be trying to reduce their costs and share resources through various centralized or cooperative endeavors. Early cooperative cataloging efforts, prior to 1967 when the MARC format made its appearance and automation took off, clearly recognized the need to create a shared national resource of bibliographic records. Yet, the dreams of cataloging it once for all turned into nightmares over and over as many schemes were tried and failed. However, some schemes succeeded and millions of items were cataloged through these early efforts. The promise of our preliminary steps in cooperative cataloging during the pre-automation era sparked our imaginations and raised our hopes for the future.
- Type
- a
-
Kilgour, F.G.; Moran, B.B.; Barden, J.R.: Retrieval effectiveness of surname-title-word searches for known items by academic library users (1999)
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- Abstract
- This article reports the findings of an experiment using a simulated title pages, author surnames, and title words, one-third of which were selected by each of the 3 authors, to determine the frequency of one-screen displays when used to search for known items in an implied Boolean retrieval system. Searches comprising surname plus one significant title word produced one-screen displays 78% of time; surname plus 2 words 97% of the time; and surname plus 3 words 98,5%. Three quarters of the significant words were nouns
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-
Tillett, B.B.: FRBR and cataloging for the future (2004)
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- Abstract
- The conceptual model known as "FRBR" (Functional Requirements for Bibliographic Records) reminds us of the basic elements in describing materials in the bibliographic universe, the inter-relationships, and the fundamental user tasks that we are trying to address when we create library catalogs. This model provides a new perspective on cataloging that should influence the design of future systems, cataloging codes, and cataloging practices. This paper explores current activities to utilize the FRBR model within cataloging principles, cataloging codes, and cataloging systems, and offers questions, visions, and suggests some next steps.
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- a
-
Tillett, B.B.: Numbers to identify entities (ISADN's-International Standard Authority Data Numbers) (2007)
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- Abstract
- The advantages of unique identifiers for the entities described in authority records are outweighed by the costs to manage an international system for assigning and maintaining such unique identifiers. Today's and tomorrow's systems perhaps can do without unique identifiers, but the attraction of unique identifiers still persists. This paper provides a personal recommendation to use the existing machine-generated record control numbers from our authority records as an interim measure until we see what future systems need.
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- a
-
Tillett, B.B.: RDA, or, The long journey of the catalog to the digital age (2016)
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- Abstract
- RDA was created in response to complaints about the Anglo-American Cataloguing Rules, especially the call for a more international, principle-based content standard that takes the perspective of the conceptual models of FRBR (Functional Requirements for Bibliographic Records) and FRAD (Functional Requirements for Authority Data). The past and ongoing process for continuous improvement to RDA is through the Joint Steering Committee for Development of RDA (known as the JSC, but recently renamed the RDA Steering Committee - RSC) to make RDA even more international and principle-based.
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Boruah, B.B.; Ravikumar, S.; Gayang, F.L.: Consistency, extent, and validation of the utilization of the MARC 21 bibliographic standard in the college libraries of Assam in India (2023)
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- Abstract
- This paper brings light to the existing practice of cataloging in the college libraries of Assam in terms of utilizing the MARC 21 standard and its structure, i.e., the tags, subfield codes, and indicators. Catalog records from six college libraries are collected and a survey is conducted to understand the local users' information requirements for the catalog. Places, where libraries have scope to improve and which divisions of tags could be more helpful for them in information retrieval, are identified and suggested. This study fulfilled the need for local-level assessment of the catalogs.
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Schlindwein, B.B.; Geisberg. G.: lnformationskompetenz - Lehrveranstaltung der Bibliothek an der TU München (2009)
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Authority control in the online environment : considerations and practices (1989)
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- Editor
- Tillett, B.B.
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Kucukyilmaz, T.; Cambazoglu, B.B.; Aykanat, C.; Baeza-Yates, R.: ¬A machine learning approach for result caching in web search engines (2017)
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- Abstract
- A commonly used technique for improving search engine performance is result caching. In result caching, precomputed results (e.g., URLs and snippets of best matching pages) of certain queries are stored in a fast-access storage. The future occurrences of a query whose results are already stored in the cache can be directly served by the result cache, eliminating the need to process the query using costly computing resources. Although other performance metrics are possible, the main performance metric for evaluating the success of a result cache is hit rate. In this work, we present a machine learning approach to improve the hit rate of a result cache by facilitating a large number of features extracted from search engine query logs. We then apply the proposed machine learning approach to static, dynamic, and static-dynamic caching. Compared to the previous methods in the literature, the proposed approach improves the hit rate of the result cache up to 0.66%, which corresponds to 9.60% of the potential room for improvement.
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- a
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Vickery, B.B.: Structure and function in retrieval languages (2006)
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- Abstract
- Purpose - The purpose of this paper is to summarize the varied structural characteristics which may be present in retrieval languages. Design/methodology/approach - The languages serve varied purposes in information systems, and a number of these are identified. The relations between structure and function are discussed and suggestions made as to the most suitable structures needed for various purposes. Findings - A quantitative approach has been developed: a simple measure is the number of separate terms in a retrieval language, but this has to be related to the scope of its subject field. Some ratio of terms to items in the field seems a more suitable measure of the average specificity of the terms. Other aspects can be quantified - for example, the average number of links in hierarchical chains, or the average number of cross-references in a thesaurus. Originality/value - All the approaches to the analysis of retrieval language reported in this paper are of continuing value. Some practical studies of computer information systems undertaken by Aslib Research Department have suggested a further approach.
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Barrett, B.B.: Hit rates with the OCLC CD450 cataloging system : a test with recent, academic approval books (1990)
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- Abstract
- The work begins by reviewing publications on the use of optical-disc technology in cataloging departments. This section includes descriptive information on specific products and comparative considerations on the value of the CD genre. Most commentary to date seems to find cost advantages to the optical format for smaller libraries but fewer attractions for larger institutions who would lose online immediacy. An outline of the design and results of the OCLC test follows along with various tables showing the class makeup of the overall sample, the hit-rate for the two vendors, and other data. Most of the sample consisted of English-language titles that would support the general academic mission of a variety of disciplines. Well over 90% of the titles searched had MARC records on discs within two issues or three months. Although concluding that departments acquiring over 5000 titles per year may find online utilities more effective, the article still urges a careful analysis of laser cataloging products with a variety of acquisition samples and for a variety of libraries.
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Ravichandra Rao, I.K.; Sahoo, B.B.: Studies and research in informetrics at the Documentation Research and Training Centre (DRTC), ISI Bangalore (2006)
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- Abstract
- Contributions of DRTC to informetric studies and research are discussed. A report on recent work - a quantitative country-wise analysis of software literature based on the data from two bibliographic databases i.e. COMPENDEX and INSPEC is presented. The number of countries involved in R & D activities in software in the most productive group is increasing. The research contribution on software is decreasing in developed countries as compared to that in developing and less developed countries. India 's contribution is only 1.1% and it has remained constant over the period of 12 years 1989-2001. The number of countries involved in R&D activities in software has been increasing in the 1990s. It is also noted that higher the budget for higher education, higher the number of publications; and that higher the number of publications, higher the export as well as the domestic consumption of software.
- Source
- Knowledge organization, information systems and other essays: Professor A. Neelameghan Festschrift. Ed. by K.S. Raghavan and K.N. Prasad
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- a
