Search (35 results, page 1 of 2)

MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.03

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Date: 20. 1.2007 18:30:22
Source: Aslib proceedings. 56(2004) no.4, S.201-211

Robertson, S.E.: Indexing theory and retrieval effectiveness (1979) 0.00

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Source: Drexel library quarterly. 14(1979), S.40-56

Robertson, S.E.; Walker, S.: Some simple effective approximations to the 2-Poisson molde for probabilisitc weighted retrieval (1979) 0.00

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Footnote: Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.345-453.
Source: Journal of documentation. 35(1979), S.285-295 (???)

Sparck Jones, K.; Walker, S.; Robertson, S.E.: ¬A probabilistic model of information retrieval : development and comparative experiments - part 1 (2000) 0.00

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Source: Information processing and management. 36(2000) no.6, S.779-808

Sparck Jones, K.; Walker, S.; Robertson, S.E.: ¬A probabilistic model of information retrieval : development and comparative experiments - part 2 (2000) 0.00

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Source: Information processing and management. 36(2000) no.6, S.809-840

Robertson, S.E.; Walker, S.; Beaulieu, M.: Experimentation as a way of life : Okapi at TREC (2000) 0.00

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Source: Information processing and management. 36(2000) no.1, S.95-108

Robertson, S.E.; Walker, S.; Beaulieu, M.M.; Gatford, M.; Payne, A.: Okapi at TREC-4 (1996) 0.00

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Pages: S.73-96

Robertson, S.E.: ¬The probability ranking principle in IR (1977) 0.00

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Footnote: Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willet. San Francisco: Morgan Kaufmann 1997. S.281-286.
Source: Journal of documentation. 33(1977), S.294-304

Beaulieu, M.M.; Gatford, M.; Huang, X.; Robertson, S.E.; Walker, S.; Williams, P.: Okapi an TREC-5 (1997) 0.00

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Pages: S.143-165

Robertson, S.E.; Belkin, N.J.: Ranking in principle (1978) 0.00

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Source: Journal of documentation. 34(1978), S.93-100

Robertson, S.E.; Hancock-Beaulieu, M.M.: On the evaluation of IR systems (1992) 0.00

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Source: Information processing and management. 28(1992) no.4, S.457-466

Robertson, S.E.: ¬The probabilistic character of relevance (1977) 0.00

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Source: Information processing and management. 13(1977), S.247-251

Robertson, S.E.: ¬The methodology of information retrieval experiment (1981) 0.00

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Pages: S.9-31

Bovey, J.D.; Robertson, S.E.: ¬An algorithm for weighted searching on a Boolean system (1984) 0.00

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Source: Information technology: research and development. 3(1984) no.1, S.84-87

Robertson, S.E.: Some recent theories and models in information retrieval (1980) 0.00

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Pages: S.131-136

Robertson, S.E.: On relevance weight estimation and query expansion (1986) 0.00

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Source: Journal of documentation. 42(1986), S.182-188

Robertson, S.E.: OKAPI at TREC (1994) 0.00

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Pages: 19 S

Robertson, S.E.: OKAPI at TREC-1 (1994) 0.00

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Pages: 19 S

Robertson, S.E.; Walker, S.; Beaulieu, M.: Laboratory experiments with Okapi : participation in the TREC programme (1997) 0.00

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Source: Journal of documentation. 53(1997) no.1, S.20-34

Robertson, S.E.: ¬The parametric description of retrieval tests : Part II: Overall measures (1969) 0.00
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Abstract

Two general requirements for overall measures of retrieval effectiveness are proposed, namely that the measures should be as far as possible independent of generality (this is interpreted to mean that it can be described in terms of recall and fallout), and that it should be able to measure the effectiveness of a performance curve (it should not be restricted to a simple 2X2 table). Several measures that have been proposed are examined with these conditions in mind. It turns out that most of the satisfactory ones are directly or indirectly related to swet's measure A, the area under the recall-fallout curve. In particular, Brookes' measure S and Rocchio's normalized recall are versions of A.

Source

Journal of documentation. 25(1969) no.2, S.93-106

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