Search (79 results, page 1 of 4)

0.07069763 = product of:
  0.10604644 = sum of:
    0.0654609 = weight(_text_:book in 2263) [ClassicSimilarity], result of:
      0.0654609 = score(doc=2263,freq=2.0), product of:
        0.2237077 = queryWeight, product of:
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.050679956 = queryNorm
        0.29261798 = fieldWeight in 2263, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.046875 = fieldNorm(doc=2263)
    0.04058554 = product of:
      0.08117108 = sum of:
        0.08117108 = weight(_text_:search in 2263) [ClassicSimilarity], result of:
          0.08117108 = score(doc=2263,freq=8.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.460814 = fieldWeight in 2263, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.046875 = fieldNorm(doc=2263)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Content

The objective of this research was to investigate the extent to which thesauri have the potential to support the search behaviour of nanoscience and technology researchers while interacting with an electronic book digital library. Transaction log data was obtained from a nanoscience and technology digital library to investigate the nature, type and characteristics of users' queries and search terms. The specific objectives was to assess the extent to which users' search terms matched with those found in two well-established thesauri attached o the INSPEC and Compendex databases.

0.06693571 = product of:
  0.10040356 = sum of:
    0.076371044 = weight(_text_:book in 3839) [ClassicSimilarity], result of:
      0.076371044 = score(doc=3839,freq=2.0), product of:
        0.2237077 = queryWeight, product of:
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.050679956 = queryNorm
        0.34138763 = fieldWeight in 3839, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3839)
    0.02403252 = product of:
      0.04806504 = sum of:
        0.04806504 = weight(_text_:22 in 3839) [ClassicSimilarity], result of:
          0.04806504 = score(doc=3839,freq=2.0), product of:
            0.17747258 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050679956 = queryNorm
            0.2708308 = fieldWeight in 3839, 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=3839)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Date

27. 8.2011 14:22:27

Footnote

Vgl.: http://www.tandfonline.com/doi/book/10.1081/E-ELIS3.

0.032865077 = product of:
  0.09859523 = sum of:
    0.09859523 = sum of:
      0.05739662 = weight(_text_:search in 2420) [ClassicSimilarity], result of:
        0.05739662 = score(doc=2420,freq=4.0), product of:
          0.17614716 = queryWeight, product of:
            3.475677 = idf(docFreq=3718, maxDocs=44218)
            0.050679956 = queryNorm
          0.3258447 = fieldWeight in 2420, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.475677 = idf(docFreq=3718, maxDocs=44218)
            0.046875 = fieldNorm(doc=2420)
      0.041198608 = weight(_text_:22 in 2420) [ClassicSimilarity], result of:
        0.041198608 = score(doc=2420,freq=2.0), product of:
          0.17747258 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.050679956 = queryNorm
          0.23214069 = fieldWeight in 2420, 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=2420)
  0.33333334 = coord(1/3)

Abstract

The German information science community - with the support of the two main funding agencies in Germany - will develop a scientific portal, vascoda, for cross-searching distributed metadata collections. In platitudinous words, one of the services of vascoda is going to be a ldquoGooglerdquo-like search for the academic community, an easy to use, yet sophisticated search-engine to supply information on high-quality resources from different media and technical environments. Reaching this objective requires considerable standardisation activity amongst the main players to harmonise the already existing services (e.g. regarding metadata, protocols, etc.). The co-operation amongst the participants including both of the funding agencies is creating a unique team-work situation in Germany thus strengthening the information science community.

Source

Research and advanced technology for digital libraries : 7th European Conference, proceedings / ECDL 2003, Trondheim, Norway, August 17-22, 2003

0.025457015 = product of:
  0.076371044 = sum of:
    0.076371044 = weight(_text_:book in 3372) [ClassicSimilarity], result of:
      0.076371044 = score(doc=3372,freq=2.0), product of:
        0.2237077 = queryWeight, product of:
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.050679956 = queryNorm
        0.34138763 = fieldWeight in 3372, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3372)
  0.33333334 = coord(1/3)

Abstract

Through out this book we showed that Semantic Digital Libraries are no longer an abstract concept; we have presented both underlying technologies, examples of semantic digital libraries, and their applications. However, the bright future of this technology only begins, and we expect more and more genuine applications of semantic digital libraries to emerge. In this section we will spotlight on three of, in our opinion, the most promising of applications: semantic museums, eLearning 2.0, and semantic digital libraries in enterprises.

0.025195912 = product of:
  0.075587735 = sum of:
    0.075587735 = weight(_text_:book in 4679) [ClassicSimilarity], result of:
      0.075587735 = score(doc=4679,freq=6.0), product of:
        0.2237077 = queryWeight, product of:
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.050679956 = queryNorm
        0.33788615 = fieldWeight in 4679, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.03125 = fieldNorm(doc=4679)
  0.33333334 = coord(1/3)

Abstract

European digital libraries have existed in diverse forms and with quite different functions, priorities, and aims. However, there are some common features of European-based initiatives that are relevant to non-European communities. There are now many more challenges and changes than ever before, and the development rate of new digital libraries is ever accelerating. Delivering educational, cultural, and research resources-especially from major scientific and cultural organizations-has become a core mission of these organizations. Using these resources they will be able to investigate, educate, and elucidate, in order to promote and disseminate and to preserve civilization. Extremely important in conceptualizing the digital environment priorities in Europe was its cultural heritage and the feeling that these rich resources should be open to Europe and the global community. In this book we focus on European digitized heritage and digital culture, and its potential in the digital age. We specifically look at the EU and its approaches to digitization and digital culture, problems detected, and achievements reached, all with an emphasis on digital cultural heritage. We seek to report on important documents that were prepared on digitization; copyright and related documents; research and education in the digital libraries field under the auspices of the EU; some other European and national initiatives; and funded projects. The aim of this book is to discuss the development of digital libraries in the European context by presenting, primarily to non-European communities interested in digital libraries, the phenomena, initiatives, and developments that dominated in Europe. We describe the main projects and their outcomes, and shine a light on the number of challenges that have been inspiring new approaches, cooperative efforts, and the use of research methodology at different stages of the digital libraries development. The specific goals are reflected in the structure of the book, which can be conceived as a guide to several main topics and sub-topics. However, the author?s scope is far from being comprehensive, since the field of digital libraries is very complex and digital libraries for cultural heritage is even moreso.

0.020572376 = product of:
  0.061717123 = sum of:
    0.061717123 = weight(_text_:book in 1242) [ClassicSimilarity], result of:
      0.061717123 = score(doc=1242,freq=4.0), product of:
        0.2237077 = queryWeight, product of:
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.050679956 = queryNorm
        0.27588287 = fieldWeight in 1242, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.03125 = fieldNorm(doc=1242)
  0.33333334 = coord(1/3)

Abstract

The concept for the German Digital Libraries Program is imbedded in the Information Infrastructure Program of the German Federal Government for the years 1996-2000 which has been explicated in the Program Paper entitled "Information as Raw Material for Innovation".3 The Program Paper was published 1996 by the Federal Ministry for Education, Research, and Technology. The actual grants program "Global Info" was initiated by the Information and Communication Commission of the Joint Learned Societies to further technological advancement in enabling all researchers in Germany direct access to literature, research results, and other relevant information. This Commission was founded by four of the learned societies in 1995, and it has sponsored a series of workshops to increase awareness of leading edge technology and innovations in accessing electronic information sources. Now, nine of the leading research-level learned societies -- often those with umbrella responsibilities for other learned societies in their field -- are members of the Information and Communication Commission and represent the mathematicians, physicists, computer scientists, chemists, educational researchers, sociologists, psychologists, biologists and information technologists in the German Association of Engineers. (The German professional librarian societies are not members, as such, of this Commission, but are represented through delegates from libraries in the learned societies and in the future, hopefully, also by the German Association of Documentalists or through the cooperation between the documentalist and librarian professional societies.) The Federal Ministry earmarked 60 Million German Marks for projects within the framework of the German Digital Libraries Program in two phases over the next six years. The scope for the German Digital Libraries Program was announced in a press release in April 1997,4 and the first call for preliminary projects and expressions of interest in participation ended in July 1997. The Consortium members were suggested by the Information and Communication Commission of the Learned Societies (IuK Kommission), by key scientific research funding agencies in the German government, and by the publishers themselves. The first official meeting of the participants took place on December 1, 1997, at the Deutsche Bibliothek, located in the renowned center of German book trade, Frankfurt, thus documenting the active role and participation of libraries and publishers. In contrast to the Digital Libraries Project of the National Science Foundation in the United States, the German Digital Libraries project is based on furthering cooperation with universities, scientific publishing houses (including various international publishers), book dealers, and special subject information centers, as well as academic and research libraries. The goals of the German Digital Libraries Project are to achieve: 1) efficient access to world wide information; 2) directly from the scientist's desktop; 3) while providing the organization for and stimulating fundamental structural changes in the information and communication process of the scientific community.

0.018174257 = product of:
  0.054522768 = sum of:
    0.054522768 = sum of:
      0.027057027 = weight(_text_:search in 1447) [ClassicSimilarity], result of:
        0.027057027 = score(doc=1447,freq=2.0), product of:
          0.17614716 = queryWeight, product of:
            3.475677 = idf(docFreq=3718, maxDocs=44218)
            0.050679956 = queryNorm
          0.15360467 = fieldWeight in 1447, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.475677 = idf(docFreq=3718, maxDocs=44218)
            0.03125 = fieldNorm(doc=1447)
      0.027465738 = weight(_text_:22 in 1447) [ClassicSimilarity], result of:
        0.027465738 = score(doc=1447,freq=2.0), product of:
          0.17747258 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.050679956 = queryNorm
          0.15476047 = fieldWeight in 1447, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.03125 = fieldNorm(doc=1447)
  0.33333334 = coord(1/3)

Abstract

The BAER Web Resources Group was charged in October 1999 with defining and describing the parameters of electronic resources that do not clearly belong to the categories being defined by the BAER Digital Group or the BAER Electronic Journals Group. After some difficulty identifying precisely which resources fell under the Group's charge, we finally named the following types of resources for our consideration: web sites, electronic texts, indexes, databases and abstracts, online reference resources, and networked and non-networked CD-ROMs. Electronic resources are a vast and growing collection that touch nearly every department within the Library. It is unrealistic to think one department can effectively administer all aspects of the collection. The Group then began to focus on the concern of bibliographic access to these varied resources, and to define parameters for handling or processing them within the Library. Some key elements became evident as the work progressed. * Selection process of resources to be acquired for the collection * Duplication of effort * Use of CORC * Resource Finder design * Maintenance of Resource Finder * CD-ROMs not networked * Communications * Voyager search limitations. An unexpected collaboration with the Web Development Committee on the Resource Finder helped to steer the Group to more detailed descriptions of bibliographic access. This collaboration included development of data elements for the Resource Finder database, and some discussions on Library staff processing of the resources. The Web Resources Group invited expert testimony to help the Group broaden its view to envision public use of the resources and discuss concerns related to technical services processing. The first testimony came from members of the Resource Finder Committee. Some background information on the Web Development Resource Finder Committee was shared. The second testimony was from librarians who select electronic texts. Three main themes were addressed: accessing CD-ROMs; the issue of including non-networked CD-ROMs in the Resource Finder; and, some special concerns about electronic texts. The third testimony came from librarians who select indexes and abstracts and also provide Reference services. Appendices to this report include minutes of the meetings with the experts (Appendix A), a list of proposed data elements to be used in the Resource Finder (Appendix B), and recommendations made to the Resource Finder Committee (Appendix C). Below are summaries of the key elements.

Date

21. 4.2002 10:22:31

0.016184341 = product of:
  0.048553023 = sum of:
    0.048553023 = product of:
      0.09710605 = sum of:
        0.09710605 = weight(_text_:22 in 4872) [ClassicSimilarity], result of:
          0.09710605 = score(doc=4872,freq=4.0), product of:
            0.17747258 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050679956 = queryNorm
            0.54716086 = fieldWeight in 4872, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=4872)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date

22. 6.2002 19:40:22

0.01602168 = product of:
  0.04806504 = sum of:
    0.04806504 = product of:
      0.09613008 = sum of:
        0.09613008 = weight(_text_:22 in 6483) [ClassicSimilarity], result of:
          0.09613008 = score(doc=6483,freq=2.0), product of:
            0.17747258 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050679956 = queryNorm
            0.5416616 = fieldWeight in 6483, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=6483)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date

22. 6.2002 19:43:01

0.014546866 = product of:
  0.043640595 = sum of:
    0.043640595 = weight(_text_:book in 3371) [ClassicSimilarity], result of:
      0.043640595 = score(doc=3371,freq=2.0), product of:
        0.2237077 = queryWeight, product of:
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.050679956 = queryNorm
        0.19507864 = fieldWeight in 3371, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.414126 = idf(docFreq=1454, maxDocs=44218)
          0.03125 = fieldNorm(doc=3371)
  0.33333334 = coord(1/3)

Abstract

Libraries have always been an inspiration for the standards and technologies developed by semantic web activities. However, except for the Dublin Core specification, semantic web and social networking technologies have not been widely adopted and further developed by major digital library initiatives and projects. Yet semantic technologies offer a new level of flexibility, interoperability, and relationships for digital repositories. Kruk and McDaniel present semantic web-related aspects of current digital library activities, and introduce their functionality; they show examples ranging from general architectural descriptions to detailed usages of specific ontologies, and thus stimulate the awareness of researchers, engineers, and potential users of those technologies. Their presentation is completed by chapters on existing prototype systems such as JeromeDL, BRICKS, and Greenstone, as well as a look into the possible future of semantic digital libraries. This book is aimed at researchers and graduate students in areas like digital libraries, the semantic web, social networks, and information retrieval. This audience will benefit from detailed descriptions of both today's possibilities and also the shortcomings of applying semantic web technologies to large digital repositories of often unstructured data.

0.013807482 = product of:
  0.041422445 = sum of:
    0.041422445 = product of:
      0.08284489 = sum of:
        0.08284489 = weight(_text_:search in 1239) [ClassicSimilarity], result of:
          0.08284489 = score(doc=1239,freq=12.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.47031635 = fieldWeight in 1239, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1239)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Do a search on AltaVista for "algebra". What do you get? Nearly 700,000 hits, of which AltaVista will allow you to view only what it determines is the top 200. Major search engines such as AltaVista, Excite, HotBot, Lycos, and the like continue to provide a valuable service, but with the recent growth of the Internet, topic-specific sites that provide some organization to the topic are increasingly important. It the goal of the Mathematics Archives to make it easier for the ordinary user to find useful mathematical information on the Web. The Mathematics Archives (http://archives.math.utk.edu) is a multipurpose site for mathematics on the Internet. The focus is on materials which can be used in mathematics education (primarily at the undergraduate level). Resources available range from shareware and public domain software to electronic proceedings of various conferences, to an extensive collection of annotated links to other mathematical sites. All materials on the Archives are categorized and cross referenced for the convenience of the user. Several search mechanisms are provided. The Harvest search engine is implemented to provide a full text search of most of the pages on the Archives. The software we house and our list of annotated links to mathematical sites are both categorized by subject matter. Each of these collections has a specialized search engine to assist the user in locating desired material. Services at the Mathematics Archives are divided up into five broad topics: * Links organized by Mathematical Topics * Software * Teaching Materials * Other Math Archives Features * Other Links

0.013807482 = product of:
  0.041422445 = sum of:
    0.041422445 = product of:
      0.08284489 = sum of:
        0.08284489 = weight(_text_:search in 3368) [ClassicSimilarity], result of:
          0.08284489 = score(doc=3368,freq=12.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.47031635 = fieldWeight in 3368, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3368)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

The explosive growth of literature and data in the life sciences challenges researchers to keep track of current advancements in their disciplines. Novel approaches in the life science like the One Health paradigm require integrated methodologies in order to link and connect heterogeneous information from databases and literature resources. Current publications in the life sciences are increasingly characterized by the employment of trans-disciplinary methodologies comprising molecular and cell biology, genetics, genomic, epigenomic, transcriptional and proteomic high throughput technologies with data from humans, plants, and animals. The literature search engine LIVIVO empowers retrieval functionality by incorporating various literature resources from medicine, health, environment, agriculture and nutrition. LIVIVO is developed in-house by ZB MED - Information Centre for Life Sciences. It provides a user-friendly and usability-tested search interface with a corpus of 55 Million citations derived from 50 databases. Standardized application programming interfaces are available for data export and high throughput retrieval. The search functions allow for semantic retrieval with filtering options based on life science entities. The service oriented architecture of LIVIVO uses four different implementation layers to deliver search services. A Knowledge Environment is developed by ZB MED to deal with the heterogeneity of data as an integrative approach to model, store, and link semantic concepts within literature resources and databases. Future work will focus on the exploitation of life science ontologies and on the employment of NLP technologies in order to improve query expansion, filters in faceted search, and concept based relevancy rankings in LIVIVO.

0.013732869 = product of:
  0.041198608 = sum of:
    0.041198608 = product of:
      0.082397215 = sum of:
        0.082397215 = weight(_text_:22 in 4865) [ClassicSimilarity], result of:
          0.082397215 = score(doc=4865,freq=2.0), product of:
            0.17747258 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050679956 = queryNorm
            0.46428138 = fieldWeight in 4865, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=4865)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date

22. 6.2002 19:41:59

0.013732869 = product of:
  0.041198608 = sum of:
    0.041198608 = product of:
      0.082397215 = sum of:
        0.082397215 = weight(_text_:22 in 6040) [ClassicSimilarity], result of:
          0.082397215 = score(doc=6040,freq=2.0), product of:
            0.17747258 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050679956 = queryNorm
            0.46428138 = fieldWeight in 6040, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=6040)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Date

22. 6.2002 19:42:47

0.013668711 = product of:
  0.041006133 = sum of:
    0.041006133 = product of:
      0.082012266 = sum of:
        0.082012266 = weight(_text_:search in 4838) [ClassicSimilarity], result of:
          0.082012266 = score(doc=4838,freq=6.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.46558946 = fieldWeight in 4838, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4838)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

DAFFODIL is a search system for digital libraries aiming at strategic support during the information search process. From a user point of view this strategic support is mainly implemented by high-level search functions, so-called stratagems, which provide functionality beyond today's digital libraries. Through the tight integration of stratagems and with the federation of heterogeneous digital libraries, DAFFODIL reaches high effects of synergy for information and services. These effects provide high-quality metadata for the searcher through an intuitively controllable user interface. The implementation of stratagems follows a tool-based model.

0.013668711 = product of:
  0.041006133 = sum of:
    0.041006133 = product of:
      0.082012266 = sum of:
        0.082012266 = weight(_text_:search in 1161) [ClassicSimilarity], result of:
          0.082012266 = score(doc=1161,freq=6.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.46558946 = fieldWeight in 1161, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1161)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

With the development of the World Wide Web, the "information search" has grown to be a significant business sector of a global, competitive and commercial market. Powerful players have entered this market, such as commercial internet search engines, information portals, multinational publishers and online content integrators. Will Google, Yahoo or Microsoft be the only portals to global knowledge in 2010? If libraries do not want to become marginalized in a key area of their traditional services, they need to acknowledge the challenges that come with the globalisation of scholarly information, the existence and further growth of the academic internet

0.013668711 = product of:
  0.041006133 = sum of:
    0.041006133 = product of:
      0.082012266 = sum of:
        0.082012266 = weight(_text_:search in 1255) [ClassicSimilarity], result of:
          0.082012266 = score(doc=1255,freq=24.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.46558946 = fieldWeight in 1255, product of:
              4.8989797 = tf(freq=24.0), with freq of:
                24.0 = termFreq=24.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.02734375 = fieldNorm(doc=1255)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

As digital libraries become a major source of information for many people, we need to know more about how people seek and retrieve information in digital environments. Quite commonly, users with a problem-at-hand and associated question-in-mind repeatedly search a literature for answers, and seek information in stages over extended periods from a variety of digital information resources. The process of repeatedly searching over time in relation to a specific, but possibly an evolving information problem (including changes or shifts in a variety of variables), is called the successive search phenomenon. The study outlined in this paper is currently investigating this new and little explored line of inquiry for information retrieval, Web searching, and digital libraries. The purpose of the research project is to investigate the nature, manifestations, and behavior of successive searching by users in digital environments, and to derive criteria for use in the design of information retrieval interfaces and systems supporting successive searching behavior. This study includes two related projects. The first project is based in the School of Library and Information Sciences at the University of North Texas and is funded by a National Science Foundation POWRE Grant <http://www.nsf.gov/cgi-bin/show?award=9753277>. The second project is based at the Department of Information Studies at the University of Sheffield (UK) and is funded by a grant from the British Library <http://www.shef. ac.uk/~is/research/imrg/uncerty.html> Research and Innovation Center. The broad objectives of each project are to examine the nature and extent of successive search episodes in digital environments by real users over time. The specific aim of the current project is twofold: * To characterize progressive changes and shifts that occur in: user situational context; user information problem; uncertainty reduction; user cognitive styles; cognitive and affective states of the user, and consequently in their queries; and * To characterize related changes over time in the type and use of information resources and search strategies particularly related to given capabilities of IR systems, and IR search engines, and examine changes in users' relevance judgments and criteria, and characterize their differences. The study is an observational, longitudinal data collection in the U.S. and U.K. Three questionnaires are used to collect data: reference, client post search and searcher post search questionnaires. Each successive search episode with a search intermediary for textual materials on the DIALOG Information Service is audiotaped and search transaction logs are recorded. Quantitative analysis includes statistical analysis using Likert scale data from the questionnaires and log-linear analysis of sequential data. Qualitative methods include: content analysis, structuring taxonomies; and diagrams to describe shifts and transitions within and between each search episode. Outcomes of the study are the development of appropriate model(s) for IR interactions in successive search episodes and the derivation of a set of design criteria for interfaces and systems supporting successive searching.

0.013528514 = product of:
  0.04058554 = sum of:
    0.04058554 = product of:
      0.08117108 = sum of:
        0.08117108 = weight(_text_:search in 1196) [ClassicSimilarity], result of:
          0.08117108 = score(doc=1196,freq=18.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.460814 = fieldWeight in 1196, product of:
              4.2426405 = tf(freq=18.0), with freq of:
                18.0 = termFreq=18.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.03125 = fieldNorm(doc=1196)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

This article describes the journey from the conception of and vision for a modern search-engine-based search environment to its technological realisation. In doing so, it takes up the thread of an earlier article on this subject, this time from a technical viewpoint. As well as presenting the conceptual considerations of the initial stages, this article will principally elucidate the technological aspects of this journey. The starting point for the deliberations about development of an academic search engine was the experience we gained through the generally successful project "Digital Library NRW", in which from 1998 to 2000-with Bielefeld University Library in overall charge-we designed a system model for an Internet-based library portal with an improved academic search environment at its core. At the heart of this system was a metasearch with an availability function, to which we added a user interface integrating all relevant source material for study and research. The deficiencies of this approach were felt soon after the system was launched in June 2001. There were problems with the stability and performance of the database retrieval system, with the integration of full-text documents and Internet pages, and with acceptance by users, because users are increasingly performing the searches themselves using search engines rather than going to the library for help in doing searches. Since a long list of problems are also encountered using commercial search engines for academic use (in particular the retrieval of academic information and long-term availability), the idea was born for a search engine configured specifically for academic use. We also hoped that with one single access point founded on improved search engine technology, we could access the heterogeneous academic resources of subject-based bibliographic databases, catalogues, electronic newspapers, document servers and academic web pages.

0.012754805 = product of:
  0.038264416 = sum of:
    0.038264416 = product of:
      0.07652883 = sum of:
        0.07652883 = weight(_text_:search in 1468) [ClassicSimilarity], result of:
          0.07652883 = score(doc=1468,freq=4.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.43445963 = fieldWeight in 1468, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.0625 = fieldNorm(doc=1468)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

This comprehensive volume offers usable information for people at all levels of Internet savvy. It can teach librarians, students, and patrons how to search the Internet more systematically. It also helps information professionals design more efficient, effective search engines and Web pages.

0.012604448 = product of:
  0.037813343 = sum of:
    0.037813343 = product of:
      0.075626686 = sum of:
        0.075626686 = weight(_text_:search in 1164) [ClassicSimilarity], result of:
          0.075626686 = score(doc=1164,freq=10.0), product of:
            0.17614716 = queryWeight, product of:
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.050679956 = queryNorm
            0.4293381 = fieldWeight in 1164, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.475677 = idf(docFreq=3718, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1164)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

The objective of the European Library (TEL) project [TEL] was to set up a co-operative framework and specify a system for integrated access to the major collections of the European national libraries. This has been achieved by successfully applying a new approach for search and retrieval via URLs (SRU) [ZiNG] combined with a new metadata paradigm. One aim of the TEL approach is to have a low barrier of entry into TEL, and this has driven our choice for the technical solution described here. The solution comprises portal and client functionality running completely in the browser, resulting in a low implementation barrier and maximum scalability, as well as giving users control over the search interface and what collections to search. In this article we will describe, step by step, the development of both the search and retrieval architecture and the metadata infrastructure in the European Library project. We will show that SRU is a good alternative to the Z39.50 protocol and can be implemented without losing investments in current Z39.50 implementations. The metadata model being used by TEL is a Dublin Core Application Profile, and we have taken into account that functional requirements will change over time and therefore the metadata model will need to be able to evolve in a controlled way. We make this possible by means of a central metadata registry containing all characteristics of the metadata in TEL. Finally, we provide two scenarios to show how the TEL concept can be developed and extended, with applications capable of increasing their functionality by "learning" new metadata or protocol options.