Search (26 results, page 1 of 2)

0.09265944 = product of:
  0.18531889 = sum of:
    0.12517102 = weight(_text_:engines in 3346) [ClassicSimilarity], result of:
      0.12517102 = score(doc=3346,freq=12.0), product of:
        0.22757743 = queryWeight, product of:
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.04479146 = queryNorm
        0.5500151 = fieldWeight in 3346, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.03125 = fieldNorm(doc=3346)
    0.060147867 = product of:
      0.12029573 = sum of:
        0.12029573 = weight(_text_:programming in 3346) [ClassicSimilarity], result of:
          0.12029573 = score(doc=3346,freq=4.0), product of:
            0.29361802 = queryWeight, product of:
              6.5552235 = idf(docFreq=170, maxDocs=44218)
              0.04479146 = queryNorm
            0.40970147 = fieldWeight in 3346, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.5552235 = idf(docFreq=170, maxDocs=44218)
              0.03125 = fieldNorm(doc=3346)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

The World Wide Web is rapidly filling with more text than anyone could have imagined even a short time ago, but the task of isolating relevant parts of this vast information has become just that much more daunting. Richard Belew brings a cognitive perspective to the study of information retrieval as a discipline within computer science. He introduces the idea of Finding Out About (FDA) as the process of actively seeking out information relevant to a topic of interest and describes its many facets - ranging from creating a good characterization of what the user seeks, to what documents actually mean, to methods of inferring semantic clues about each document, to the problem of evaluating whether our search engines are performing as we have intended. Finding Out About explains how to build the tools that are useful for searching collections of text and other media. In the process it takes a close look at the properties of textual documents that do not become clear until very large collections of them are brought together and shows that the construction of effective search engines requires knowledge of the statistical and mathematical properties of linguistic phenomena, as well as an appreciation for the cognitive foundation we bring to the task as language users. The unique approach of this book is its even handling of the phenomena of both numbers and words, making it accessible to a wide audience. The textbook is usable in both undergraduate and graduate classes on information retrieval, library science, and computational linguistics. The text is accompanied by a CD-ROM that contains a hypertext version of the book, including additional topics and notes not present in the printed edition. In addition, the CD contains the full text of C.J. "Keith" van Rijsbergen's famous textbook, Information Retrieval (now out of print). Many active links from Belew's to van Rijsbergen's hypertexts help to unite the material. Several test corpora and indexing tools are provided, to support the design of your own search engine. Additional exercises using these corpora and code are available to instructors. Also supporting this book is a Web site that will include recent additions to the book, as well as links to sites of new topics and methods.

LCSH

Search engines / Programming
Web search engines

Subject

Search engines / Programming
Web search engines

0.022356624 = product of:
  0.089426495 = sum of:
    0.089426495 = weight(_text_:engines in 2860) [ClassicSimilarity], result of:
      0.089426495 = score(doc=2860,freq=2.0), product of:
        0.22757743 = queryWeight, product of:
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.04479146 = queryNorm
        0.39294976 = fieldWeight in 2860, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2860)
  0.25 = coord(1/4)

0.013829577 = product of:
  0.055318307 = sum of:
    0.055318307 = weight(_text_:engines in 2050) [ClassicSimilarity], result of:
      0.055318307 = score(doc=2050,freq=6.0), product of:
        0.22757743 = queryWeight, product of:
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.04479146 = queryNorm
        0.24307466 = fieldWeight in 2050, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.01953125 = fieldNorm(doc=2050)
  0.25 = coord(1/4)

Footnote

Rez. in: KO 50(2003) no.1, S.45-46 (L.M. Given): "In her own preface to this work, the author notes her lifelong fascination with classification and order, as well as her more recent captivation with the Internet - a place of "chaos in need of organization" (xi). Sorting out the Web examines current efforts to organize the Web and is well-informed by the author's academic and professional expertise in information organization, information retrieval, and Web development. Although the book's level and tone are particularly relevant to a student audience (or others interested in Web-based subject access at an introductory level), it will also appeal to information professionals developing subject access systems across a range of information contexts. There are six chapters in the book, each describing and analyzing one core concept related to the organization of Web content. All topics are presented in a manner ideal for newcomers to the area, with clear definitions, examples, and visuals that illustrate the principles under discussion. The first chapter provides a brief introduction to developments in information technology, including an historical overview of information services, users' needs, and libraries' responses to the Internet. Chapter two introduces metadata, including core concepts and metadata formats. Throughout this chapter the author presents a number of figures that aptly illustrate the application of metadata in HTML, SGML, and MARC record environments, and the use of metadata tools (e.g., XML, RDF). Chapter three begins with an overview of classification theory and specific schemes, but the author devotes most of the discussion to the application of classification systems in the Web environment (e.g., Dewey, LCC, UDC). Web screen captures illustrate the use of these schemes for information sources posted to sites around the world. The chapter closes with a discussion of the future of classification; this is a particularly useful section as the author presents a listing of core journal and conference venues where new approaches to Web classification are explored. In chapter four, the author extends the discussion of classification to the use of controlled vocabularies. As in the first few chapters, the author first presents core background material, including reasons to use controlled vocabularies and the differences between preand post-coordinate indexing, and then discusses the application of specific vocabularies in the Web environment (e.g., Infomine's use of LCSH). The final section of the chapter explores failure in subject searching and the limitations of controlled vocabularies for the Web. Chapter five discusses one of the most common and fast-growing topics related to subject access an the Web: search engines. The author presents a clear definition of the term that encompasses classified search lists (e.g., Yahoo) and query-based engines (e.g., Alta Vista). In addition to historical background an the development of search engines, Schwartz also examines search service types, features, results, and system performance.

0.012775214 = product of:
  0.051100858 = sum of:
    0.051100858 = weight(_text_:engines in 1513) [ClassicSimilarity], result of:
      0.051100858 = score(doc=1513,freq=2.0), product of:
        0.22757743 = queryWeight, product of:
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.04479146 = queryNorm
        0.22454272 = fieldWeight in 1513, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.03125 = fieldNorm(doc=1513)
  0.25 = coord(1/4)

Abstract

The Elements of Knowledge Organization is a unique and original work introducing the fundamental concepts related to the field of Knowledge Organization (KO). There is no other book like it currently available. The author begins the book with a comprehensive discussion of "knowledge" and its associated theories. He then presents a thorough discussion of the philosophical underpinnings of knowledge organization. The author walks the reader through the Knowledge Organization domain expanding the core topics of ontologies, taxonomies, classification, metadata, thesauri and domain analysis. The author also presents the compelling challenges associated with the organization of knowledge. This is the first book focused on the concepts and theories associated with KO domain. Prior to this book, individuals wishing to study Knowledge Organization in its broadest sense would generally collocate their own resources, navigating the various methods and models and perhaps inadvertently excluding relevant materials. This text cohesively links key and related KO material and provides a deeper understanding of the domain in its broadest sense and with enough detail to truly investigate its many facets. This book will be useful to both graduate and undergraduate students in the computer science and information science domains both as a text and as a reference book. It will also be valuable to researchers and practitioners in the industry who are working on website development, database administration, data mining, data warehousing and data for search engines. The book is also beneficial to anyone interested in the concepts and theories associated with the organization of knowledge. Dr. Richard P. Smiraglia is a world-renowned author who is well published in the Knowledge Organization domain. Dr. Smiraglia is editor-in-chief of the journal Knowledge Organization, published by Ergon-Verlag of Würzburg. He is a professor and member of the Information Organization Research Group at the School of Information Studies at University of Wisconsin Milwaukee.

0.010620093 = product of:
  0.042480372 = sum of:
    0.042480372 = product of:
      0.084960744 = sum of:
        0.084960744 = weight(_text_:22 in 3247) [ClassicSimilarity], result of:
          0.084960744 = score(doc=3247,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.5416616 = fieldWeight in 3247, 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=3247)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Object

DDC-22

0.009102937 = product of:
  0.036411747 = sum of:
    0.036411747 = product of:
      0.072823495 = sum of:
        0.072823495 = weight(_text_:22 in 4589) [ClassicSimilarity], result of:
          0.072823495 = score(doc=4589,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.46428138 = fieldWeight in 4589, 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=4589)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Series

Heyne Business; 22/1019

0.009102937 = product of:
  0.036411747 = sum of:
    0.036411747 = product of:
      0.072823495 = sum of:
        0.072823495 = weight(_text_:22 in 6774) [ClassicSimilarity], result of:
          0.072823495 = score(doc=6774,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.46428138 = fieldWeight in 6774, 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=6774)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

25. 3.2019 18:15:22

0.008582331 = product of:
  0.034329325 = sum of:
    0.034329325 = product of:
      0.06865865 = sum of:
        0.06865865 = weight(_text_:22 in 770) [ClassicSimilarity], result of:
          0.06865865 = score(doc=770,freq=4.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.4377287 = fieldWeight in 770, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=770)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

26. 7.2002 14:01:22

Footnote

Rez. in: Journal of documentation 49(1993) no.1, S.68-70. (A. Maltby); Journal of librarianship and information science 1993, S.108-109 (A.G. Curwen); Herald of library science 33(1994) nos.1/2, S.85 (P.N. Kaula); Knowledge organization 22(1995) no.1, S.45 (M.P. Satija)

0.008028036 = product of:
  0.032112144 = sum of:
    0.032112144 = product of:
      0.06422429 = sum of:
        0.06422429 = weight(_text_:22 in 1842) [ClassicSimilarity], result of:
          0.06422429 = score(doc=1842,freq=14.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.4094577 = fieldWeight in 1842, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=1842)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Abstract

A system of library classification that flashed across the inquiring mind of young Melvil Louis Kossuth Dewey (known as Melvil Dewey) in 1873 is still the most popular classification scheme.. The modern library classification begins with Dewey Decimal Classification (DDC). Melvil Dewey devised DDC in 1876. DDC has is credit of 128 years of boudless success. The DDC is being taught as a practical subject throughout the world and it is being used in majority of libraries in about 150 countries. This is the result of continuous revision that 22nd Edition of DDC has been published in July 2003. No other classification scheme has published so many editions. Some welcome changes have been made in DDC 22. To reduce the Christian bias in 200 religion, the numbers 201 to 209 have been devoted to specific aspects of religion. In the previous editions these numbers were devoted to Christianity. to enhance the classifier's efficiency, Table 7 has been removed from DDC 22 and the provision of adding group of persons is made by direct use of notation already available in schedules and in notation -08 from Table 1 Standard Subdivision. The present book is an attempt to explain, with suitable examples, the salient provisions of DDC 22. The book is written in simple language so that the students may not face any difficulty in understanding what is being explained. The examples in the book are explained in a step-by-step procedure. It is hoped that this book will prove of great help and use to the library professionals in general and library and information science students in particular.

Content

1. Introduction to DDC 22 2. Major changes in DDC 22 3. Introduction to the schedules 4. Use of Table 1 : Standard Subdivisions 5. Use of Table 2 : Areas 6. Use of Table 3 : Subdivisions for the arts, for individual literatures, for specific literary forms 7. Use to Table 4 : Subdivisions of individual languages and language families 8. Use of Table 5 : Ethic and National groups 9. Use of Table 6 : Languages 10. Treatment of Groups of Persons

Object

DDC-22

0.007984509 = product of:
  0.031938035 = sum of:
    0.031938035 = weight(_text_:engines in 468) [ClassicSimilarity], result of:
      0.031938035 = score(doc=468,freq=2.0), product of:
        0.22757743 = queryWeight, product of:
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.04479146 = queryNorm
        0.1403392 = fieldWeight in 468, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.080822 = idf(docFreq=746, maxDocs=44218)
          0.01953125 = fieldNorm(doc=468)
  0.25 = coord(1/4)

Footnote

Rez. in: JASIST 57(2006) no.8, S.1132-1133 (H. Che): "The World Wide Web has been the main source of an important shift in the way people communicate with each other, get information, and conduct business. However, most of the current Web content is only suitable for human consumption. The main obstacle to providing better quality of service is that the meaning of Web content is not machine-accessible. The "Semantic Web" is envisioned by Tim Berners-Lee as a logical extension to the current Web that enables explicit representations of term meaning. It aims to bring the Web to its full potential via the exploration of these machine-processable metadata. To fulfill this, it pros ides some meta languages like RDF, OWL, DAML+OIL, and SHOE for expressing knowledge that has clear, unambiguous meanings. The first steps in searing the Semantic Web into the current Web are successfully underway. In the forthcoming years, these efforts still remain highly focused in the research and development community. In the next phase, the Semantic Web will respond more intelligently to user queries. The first chapter gets started with an excellent introduction to the Semantic Web vision. At first, today's Web is introduced, and problems with some current applications like search engines are also covered. Subsequently, knowledge management. business-to-consumer electronic commerce, business-to-business electronic commerce, and personal agents are used as examples to show the potential requirements for the Semantic Web. Next comes the brief description of the underpinning technologies, including metadata, ontology, logic, and agent. The differences between the Semantic Web and Artificial Intelligence are also discussed in a later subsection. In section 1.4, the famous "laser-cake" diagram is given to show a layered view of the Semantic Web. From chapter 2, the book starts addressing some of the most important technologies for constructing the Semantic Web. In chapter 2, the authors discuss XML and its related technologies such as namespaces, XPath, and XSLT. XML is a simple, very flexible text format which is often used for the exchange of a wide variety of data on the Web and elsewhere. The W3C has defined various languages on top of XML, such as RDF. Although this chapter is very well planned and written, many details are not included because of the extensiveness of the XML technologies. Many other books on XML provide more comprehensive coverage.

0.007585781 = product of:
  0.030343125 = sum of:
    0.030343125 = product of:
      0.06068625 = sum of:
        0.06068625 = weight(_text_:22 in 127) [ClassicSimilarity], result of:
          0.06068625 = score(doc=127,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.38690117 = fieldWeight in 127, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=127)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Footnote

Zugleich Dissertation Univ. Düsseldorf. - Rez. in: ZfBB. 22(1975) S.53-57 (H.-A. Koch)

0.007585781 = product of:
  0.030343125 = sum of:
    0.030343125 = product of:
      0.06068625 = sum of:
        0.06068625 = weight(_text_:22 in 667) [ClassicSimilarity], result of:
          0.06068625 = score(doc=667,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.38690117 = fieldWeight in 667, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=667)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

15. 7.2002 20:48:22

0.007585781 = product of:
  0.030343125 = sum of:
    0.030343125 = product of:
      0.06068625 = sum of:
        0.06068625 = weight(_text_:22 in 668) [ClassicSimilarity], result of:
          0.06068625 = score(doc=668,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.38690117 = fieldWeight in 668, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=668)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Signature

77 TWP 3911(2)+22

0.007585781 = product of:
  0.030343125 = sum of:
    0.030343125 = product of:
      0.06068625 = sum of:
        0.06068625 = weight(_text_:22 in 885) [ClassicSimilarity], result of:
          0.06068625 = score(doc=885,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.38690117 = fieldWeight in 885, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=885)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Footnote

Rez. in: Knowledge organization 22(1995) no.3/4, S.178-179 (M.P. Satija); Journal of documentation 51(1995) no.4, S.437-439 (R. Brunt)

0.007585781 = product of:
  0.030343125 = sum of:
    0.030343125 = product of:
      0.06068625 = sum of:
        0.06068625 = weight(_text_:22 in 4594) [ClassicSimilarity], result of:
          0.06068625 = score(doc=4594,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.38690117 = fieldWeight in 4594, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=4594)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Object

DDC-22

0.0060686246 = product of:
  0.024274498 = sum of:
    0.024274498 = product of:
      0.048548996 = sum of:
        0.048548996 = weight(_text_:22 in 2686) [ClassicSimilarity], result of:
          0.048548996 = score(doc=2686,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.30952093 = fieldWeight in 2686, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=2686)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

10. 9.2004 10:22:40

0.0060686246 = product of:
  0.024274498 = sum of:
    0.024274498 = product of:
      0.048548996 = sum of:
        0.048548996 = weight(_text_:22 in 217) [ClassicSimilarity], result of:
          0.048548996 = score(doc=217,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.30952093 = fieldWeight in 217, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=217)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

22. 4.2007 10:07:51

0.0045514684 = product of:
  0.018205874 = sum of:
    0.018205874 = product of:
      0.036411747 = sum of:
        0.036411747 = weight(_text_:22 in 749) [ClassicSimilarity], result of:
          0.036411747 = score(doc=749,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.23214069 = fieldWeight in 749, 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=749)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

25. 7.2002 21:22:31

0.0045514684 = product of:
  0.018205874 = sum of:
    0.018205874 = product of:
      0.036411747 = sum of:
        0.036411747 = weight(_text_:22 in 4902) [ClassicSimilarity], result of:
          0.036411747 = score(doc=4902,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.23214069 = fieldWeight in 4902, 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=4902)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Content

Enthält die Kapitel: 1. Basic concepts of information retrieval systems, 2. Database technology, 3. Bibliographic formats, 4. Subject analysis and representation, 5. Automatic indexing and file organization, 6. Vocabulary control, 7. Abstracts and abstracting, 8. Searching and retrieval, 9. Users of information retrieval, 10. Evaluation of information retrieval systems, 11. Evaluation experiments, 12. Online information retrieval, 13. CD-ROM information retrieval, 14. Trends in CD-ROM and online information retrieval, 15. Multimedia information retrieval, 16. Hypertext and hypermedia systems, 17. Intelligent information retrieval, 18. Natural language processing and information retrieval, 19. Natural language interfaces, 20. Natural language text processing and retrieval systems, 21. Problems and prospects of natural language processing systems, 22. The Internet and information retrieval, 23. Trends in information retrieval.

0.0037928906 = product of:
  0.015171562 = sum of:
    0.015171562 = product of:
      0.030343125 = sum of:
        0.030343125 = weight(_text_:22 in 5773) [ClassicSimilarity], result of:
          0.030343125 = score(doc=5773,freq=2.0), product of:
            0.15685207 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04479146 = queryNorm
            0.19345059 = fieldWeight in 5773, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5773)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Source

Password. 2000, H.5, S.22-31