Search (3 results, page 1 of 1)

  • × author_ss:"Laan, H. van der"
  • × language_ss:"nl"
  1. Laan, H. van der: Northern Light : nieuw licht aan een veranderend firmament (1997) 0.00 
    0.0029000505 = product of:
  0.005800101 = sum of:
    0.005800101 = product of:
      0.011600202 = sum of:
        0.011600202 = weight(_text_:a in 1479) [ClassicSimilarity], result of:
          0.011600202 = score(doc=1479,freq=12.0), product of:
            0.053105544 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046056706 = queryNorm
            0.21843673 = fieldWeight in 1479, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1479)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The Northern Light Internet search engine was inaugurated in Aug 1997. The service differs from existing services in that it classifies search results in a set of custom search folders and for a modest fee provides access to a range of bibliographical resources not normally available via the Web. Paymant may be made online via a simple transaction. The custom search folders enable users to refine searches more easily than with other search engines. However, the search commands to not permit truncated or wild card searches
    Footnote
    Übers. d. Titels: Northern Light: new light on a changing foundation
    Type
    a
  2. Laan, H. van der: Nieuwe Nederlandse Web-Woelers (1998) 0.00 
    0.0023435948 = product of:
  0.0046871896 = sum of:
    0.0046871896 = product of:
      0.009374379 = sum of:
        0.009374379 = weight(_text_:a in 2408) [ClassicSimilarity], result of:
          0.009374379 = score(doc=2408,freq=6.0), product of:
            0.053105544 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046056706 = queryNorm
            0.17652355 = fieldWeight in 2408, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0625 = fieldNorm(doc=2408)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    In the Netherlands updated versions of the Vindex and Zoek search engines have been released. Vindex indexes sites originating in the Netherlands and us currently undergoing a 6-month trial period. In both search engines help for users is unclear whilst truncation practice in Zoek is unhelpful. However, Zoek offers a range of options including ranking of topics. Display of search results is excellent
    Type
    a
  3. Laan, H. van der; Mettrop, W.: Werkgroep IRT (1) : search engines aan de tand gevoeld (1998) 0.00 
    0.001674345 = product of:
  0.00334869 = sum of:
    0.00334869 = product of:
      0.00669738 = sum of:
        0.00669738 = weight(_text_:a in 3260) [ClassicSimilarity], result of:
          0.00669738 = score(doc=3260,freq=4.0), product of:
            0.053105544 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046056706 = queryNorm
            0.12611452 = fieldWeight in 3260, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3260)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    1st in a series or reports by the IRT (Internet Retrieval Tools) Working Party in the Netherlands. The group was formed at the start of 1997 to attempt to identify which search engines were most suitable for different ypes of enquiries. Compilers of search engines frequently give little information about the data covered by their service and how their service deals with metadata. Preliminary tests show considerable variations in approach; future tests will examine the use of ranking and currency of systems
    Type
    a