Search (33 results, page 1 of 2)

Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.15

0.1528424 = product of:
  0.3056848 = sum of:
    0.3056848 = sum of:
      0.20762897 = weight(_text_:2000 in 3445) [ClassicSimilarity], result of:
        0.20762897 = score(doc=3445,freq=5.0), product of:
          0.20949209 = queryWeight, product of:
            4.0524464 = idf(docFreq=2088, maxDocs=44218)
            0.051695216 = queryNorm
          0.9911065 = fieldWeight in 3445, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            4.0524464 = idf(docFreq=2088, maxDocs=44218)
            0.109375 = fieldNorm(doc=3445)
      0.09805583 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
        0.09805583 = score(doc=3445,freq=2.0), product of:
          0.18102784 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051695216 = queryNorm
          0.5416616 = fieldWeight in 3445, 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=3445)
  0.5 = coord(1/2)

Date: 25. 8.2005 17:42:22
Source: Library and information research news. 24(2000) no.77, S.30-34
Year: 2000

Wechsler, M.; Schäuble, P.: ¬The probability ranking principle revisited (2000) 0.06

0.059322566 = product of:
  0.11864513 = sum of:
    0.11864513 = product of:
      0.23729026 = sum of:
        0.23729026 = weight(_text_:2000 in 3827) [ClassicSimilarity], result of:
          0.23729026 = score(doc=3827,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            1.1326932 = fieldWeight in 3827, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.125 = fieldNorm(doc=3827)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Information retrieval. 3(2000), S.217-227
Year: 2000

Liddy, E.D.; Diamond, T.; McKenna, M.: DR-LINK in TIPSTER (2000) 0.06

0.059322566 = product of:
  0.11864513 = sum of:
    0.11864513 = product of:
      0.23729026 = sum of:
        0.23729026 = weight(_text_:2000 in 3907) [ClassicSimilarity], result of:
          0.23729026 = score(doc=3907,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            1.1326932 = fieldWeight in 3907, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.125 = fieldNorm(doc=3907)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Information retrieval. 3(2000), S.291-311
Year: 2000

Horng, J.T.; Yeh, C.C.: Applying genetic algorithms to query optimization in document retrieval (2000) 0.05

0.05190724 = product of:
  0.10381448 = sum of:
    0.10381448 = product of:
      0.20762897 = sum of:
        0.20762897 = weight(_text_:2000 in 3045) [ClassicSimilarity], result of:
          0.20762897 = score(doc=3045,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.9911065 = fieldWeight in 3045, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.109375 = fieldNorm(doc=3045)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Information processing and management. 36(2000) no.5, S.737-759
Year: 2000

Zhang, D.; Dong, Y.: ¬An effective algorithm to rank Web resources (2000) 0.05

0.05190724 = product of:
  0.10381448 = sum of:
    0.10381448 = product of:
      0.20762897 = sum of:
        0.20762897 = weight(_text_:2000 in 3662) [ClassicSimilarity], result of:
          0.20762897 = score(doc=3662,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.9911065 = fieldWeight in 3662, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.109375 = fieldNorm(doc=3662)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Computer networks. 33(2000) nos.1/6, S.449-455
Year: 2000

Notess, G.R.: Search engine relevance : the never-ending quest (2000) 0.05

0.05190724 = product of:
  0.10381448 = sum of:
    0.10381448 = product of:
      0.20762897 = sum of:
        0.20762897 = weight(_text_:2000 in 4797) [ClassicSimilarity], result of:
          0.20762897 = score(doc=4797,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.9911065 = fieldWeight in 4797, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.109375 = fieldNorm(doc=4797)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Online. 24(2000) no.3, S.35-40
Year: 2000

Kwok, K.L.: Improving English and Chinese ad-hoc retrieval : a TIPSTER text phase 3 project report (2000) 0.05

0.05190724 = product of:
  0.10381448 = sum of:
    0.10381448 = product of:
      0.20762897 = sum of:
        0.20762897 = weight(_text_:2000 in 6388) [ClassicSimilarity], result of:
          0.20762897 = score(doc=6388,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.9911065 = fieldWeight in 6388, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.109375 = fieldNorm(doc=6388)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Information retrieval. 3(2000), S.313-338
Year: 2000

Clarke, C.L.A.; Cormack, G.V.; Tudhope, E.A.: Relevance ranking for one to three term queries (2000) 0.05

0.05190724 = product of:
  0.10381448 = sum of:
    0.10381448 = product of:
      0.20762897 = sum of:
        0.20762897 = weight(_text_:2000 in 437) [ClassicSimilarity], result of:
          0.20762897 = score(doc=437,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.9911065 = fieldWeight in 437, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.109375 = fieldNorm(doc=437)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Information processing and management. 36(2000) no.2, S.291-311
Year: 2000

Archuby, C.G.: Interfaces se recuperacion para catalogos en linea con salidas ordenadas por probable relevancia (2000) 0.04

0.037076604 = product of:
  0.07415321 = sum of:
    0.07415321 = product of:
      0.14830641 = sum of:
        0.14830641 = weight(_text_:2000 in 5727) [ClassicSimilarity], result of:
          0.14830641 = score(doc=5727,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.70793325 = fieldWeight in 5727, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.078125 = fieldNorm(doc=5727)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Ciencia da informacao. 29(2000) no.3, S.5-13
Year: 2000

Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.03
```
0.028671492 = product of:
  0.057342984 = sum of:
    0.057342984 = sum of:
      0.032829024 = weight(_text_:2000 in 2509) [ClassicSimilarity], result of:
        0.032829024 = score(doc=2509,freq=2.0), product of:
          0.20949209 = queryWeight, product of:
            4.0524464 = idf(docFreq=2088, maxDocs=44218)
            0.051695216 = queryNorm
          0.1567077 = fieldWeight in 2509, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.0524464 = idf(docFreq=2088, maxDocs=44218)
            0.02734375 = fieldNorm(doc=2509)
      0.024513958 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
        0.024513958 = score(doc=2509,freq=2.0), product of:
          0.18102784 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051695216 = queryNorm
          0.1354154 = fieldWeight in 2509, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.02734375 = fieldNorm(doc=2509)
  0.5 = coord(1/2)
```
Content

"Most Web search engines accept natural language queries, perform some kind of fuzzy matching and produce ranked output, displaying first the documents that are most likely to be relevant. On the other hand, most library online public access catalogs (OPACs) an the Web are still Boolean retrieval systems that perform exact matching, and require users to express their search requests precisely in a Boolean search language and to refine their search statements to improve the search results. It is well-documented that users have difficulty searching Boolean OPACs effectively (e.g. Borgman, 1996; Ensor, 1992; Wallace, 1993). One approach to making OPACs easier to use is to develop a natural language search interface that acts as a middleware between the user's Web browser and the OPAC system. The search interface can accept a natural language query from the user and reformulate it as a series of Boolean search statements that are then submitted to the OPAC. The records retrieved by the OPAC are ranked by the search interface before forwarding them to the user's Web browser. The user, then, does not need to interact directly with the Boolean OPAC but with the natural language search interface or search intermediary. The search interface interacts with the OPAC system an the user's behalf. The advantage of this approach is that no modification to the OPAC or library system is required. Furthermore, the search interface can access multiple OPACs, acting as a meta search engine, and integrate search results from various OPACs before sending them to the user. The search interface needs to incorporate a method for converting the user's natural language query into a series of Boolean search statements, and for ranking the OPAC records retrieved. The purpose of this study was to develop a relevancyranking algorithm for a search interface to Boolean OPAC systems. This is part of an on-going effort to develop a knowledge-based search interface to OPACs called the E-Referencer (Khoo et al., 1998, 1999; Poo et al., 2000). E-Referencer v. 2 that has been implemented applies a repertoire of initial search strategies and reformulation strategies to retrieve records from OPACs using the Z39.50 protocol, and also assists users in mapping query keywords to the Library of Congress subject headings."

Source

Electronic library. 22(2004) no.2, S.112-120

Baeza-Yates, R.; Navarro, G.: Block addressing indices for approximate text retrieval (2000) 0.02

0.02224596 = product of:
  0.04449192 = sum of:
    0.04449192 = product of:
      0.08898384 = sum of:
        0.08898384 = weight(_text_:2000 in 4295) [ClassicSimilarity], result of:
          0.08898384 = score(doc=4295,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.42475992 = fieldWeight in 4295, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.046875 = fieldNorm(doc=4295)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Journal of the American Society for Information Science. 51(2000) no.1, S.69-82
Year: 2000

Zhu, B.; Chen, H.: Validating a geographical image retrieval system (2000) 0.02

0.02224596 = product of:
  0.04449192 = sum of:
    0.04449192 = product of:
      0.08898384 = sum of:
        0.08898384 = weight(_text_:2000 in 4769) [ClassicSimilarity], result of:
          0.08898384 = score(doc=4769,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.42475992 = fieldWeight in 4769, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.046875 = fieldNorm(doc=4769)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Journal of the American Society for Information Science. 51(2000) no.7, S.625-634
Year: 2000

French, J.C.; Powell, A.L.; Schulman, E.: Using clustering strategies for creating authority files (2000) 0.02

0.02224596 = product of:
  0.04449192 = sum of:
    0.04449192 = product of:
      0.08898384 = sum of:
        0.08898384 = weight(_text_:2000 in 4811) [ClassicSimilarity], result of:
          0.08898384 = score(doc=4811,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.42475992 = fieldWeight in 4811, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.046875 = fieldNorm(doc=4811)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Journal of the American Society for Information Science. 51(2000) no.8, S.774-786
Year: 2000

Ding, Y.; Chowdhury, G.; Foo, S.: Organsising keywords in a Web search environment : a methodology based on co-word analysis (2000) 0.02

0.02224596 = product of:
  0.04449192 = sum of:
    0.04449192 = product of:
      0.08898384 = sum of:
        0.08898384 = weight(_text_:2000 in 105) [ClassicSimilarity], result of:
          0.08898384 = score(doc=105,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.42475992 = fieldWeight in 105, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.046875 = fieldNorm(doc=105)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Dynamism and stability in knowledge organization: Proceedings of the 6th International ISKO-Conference, 10-13 July 2000, Toronto, Canada. Ed.: C. Beghtol et al
Year: 2000

Carpineto, C.; Romano, G.: Order-theoretical ranking (2000) 0.02

0.018538302 = product of:
  0.037076604 = sum of:
    0.037076604 = product of:
      0.07415321 = sum of:
        0.07415321 = weight(_text_:2000 in 4766) [ClassicSimilarity], result of:
          0.07415321 = score(doc=4766,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.35396662 = fieldWeight in 4766, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4766)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Journal of the American Society for Information Science. 51(2000) no.7, S.587-601
Year: 2000

Ponte, J.M.: Language models for relevance feedback (2000) 0.02

0.017231649 = product of:
  0.034463298 = sum of:
    0.034463298 = product of:
      0.068926595 = sum of:
        0.068926595 = weight(_text_:2000 in 35) [ClassicSimilarity], result of:
          0.068926595 = score(doc=35,freq=3.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.32901764 = fieldWeight in 35, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.046875 = fieldNorm(doc=35)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Year: 2000

Efthimiadis, E.N.: Interactive query expansion : a user-based evaluation in a relevance feedback environment (2000) 0.01

0.014830641 = product of:
  0.029661283 = sum of:
    0.029661283 = product of:
      0.059322566 = sum of:
        0.059322566 = weight(_text_:2000 in 5701) [ClassicSimilarity], result of:
          0.059322566 = score(doc=5701,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.2831733 = fieldWeight in 5701, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.03125 = fieldNorm(doc=5701)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Journal of the American Society for Information Science. 51(2000) no.11, S.989-1003
Year: 2000

Henzinger, M.R.: Link analysis in Web information retrieval (2000) 0.01

0.014830641 = product of:
  0.029661283 = sum of:
    0.029661283 = product of:
      0.059322566 = sum of:
        0.059322566 = weight(_text_:2000 in 801) [ClassicSimilarity], result of:
          0.059322566 = score(doc=801,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.2831733 = fieldWeight in 801, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.03125 = fieldNorm(doc=801)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: IEEE data engineering bulletin. 23(2000) no.3, S.3-8
Year: 2000

Computational information retrieval (2001) 0.01

0.014069581 = product of:
  0.028139163 = sum of:
    0.028139163 = product of:
      0.056278326 = sum of:
        0.056278326 = weight(_text_:2000 in 4167) [ClassicSimilarity], result of:
          0.056278326 = score(doc=4167,freq=2.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.26864177 = fieldWeight in 4167, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.046875 = fieldNorm(doc=4167)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Workshop held in October 2000 in Raleigh, North Carolina

Stock, M.; Stock, W.G.: Internet-Suchwerkzeuge im Vergleich (IV) : Relevance Ranking nach "Popularität" von Webseiten: Google (2001) 0.01
```
0.014069581 = product of:
  0.028139163 = sum of:
    0.028139163 = product of:
      0.056278326 = sum of:
        0.056278326 = weight(_text_:2000 in 5771) [ClassicSimilarity], result of:
          0.056278326 = score(doc=5771,freq=2.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.26864177 = fieldWeight in 5771, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.046875 = fieldNorm(doc=5771)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
```
Abstract

In unserem Retrievaltest von Suchwerkzeugen im World Wide Web (Password 11/2000) schnitt die Suchmaschine Google am besten ab. Im Vergleich zu anderen Search Engines setzt Google kaum auf Informationslinguistik, sondern auf Algorithmen, die sich aus den Besonderheiten der Web-Dokumente ableiten lassen. Kernstück der informationsstatistischen Technik ist das "PageRank"- Verfahren (benannt nach dem Entwickler Larry Page), das aus der Hypertextstruktur des Web die "Popularität" von Seiten anhand ihrer ein- und ausgehenden Links berechnet. Google besticht durch das Angebot intuitiv verstehbarer Suchbildschirme sowie durch einige sehr nützliche "Kleinigkeiten" wie die Angabe des Rangs einer Seite, Highlighting, Suchen in der Seite, Suchen innerhalb eines Suchergebnisses usw., alles verstaut in einer eigenen Befehlsleiste innerhalb des Browsers. Ähnlich wie RealNames bietet Google mit dem Produkt "AdWords" den Aufkauf von Suchtermen an. Nach einer Reihe von nunmehr vier Password-Artikeln über InternetSuchwerkzeugen im Vergleich wollen wir abschließend zu einer Bewertung kommen. Wie ist der Stand der Technik bei Directories und Search Engines aus informationswissenschaftlicher Sicht einzuschätzen? Werden die "typischen" Internetnutzer, die ja in der Regel keine Information Professionals sind, adäquat bedient? Und können auch Informationsfachleute von den Suchwerkzeugen profitieren?

Search (33 results, page 1 of 2)

Authors

Languages

Types

Themes

Subjects

Classifications