-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
0.23
0.22707656 = product of:
0.30276874 = sum of:
0.071140714 = product of:
0.21342213 = sum of:
0.21342213 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
0.21342213 = score(doc=562,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 562, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=562)
0.33333334 = coord(1/3)
0.21342213 = weight(_text_:2f in 562) [ClassicSimilarity], result of:
0.21342213 = score(doc=562,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 562, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=562)
0.018205874 = product of:
0.036411747 = sum of:
0.036411747 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
0.036411747 = score(doc=562,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = queryNorm
0.23214069 = fieldWeight in 562, 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=562)
0.5 = coord(1/2)
0.75 = coord(3/4)
- Content
- Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
- Date
- 8. 1.2013 10:22:32
-
Schrodt, R.: Tiefen und Untiefen im wissenschaftlichen Sprachgebrauch (2008)
0.19
0.18970858 = product of:
0.37941715 = sum of:
0.09485429 = product of:
0.28456286 = sum of:
0.28456286 = weight(_text_:3a in 140) [ClassicSimilarity], result of:
0.28456286 = score(doc=140,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.7493574 = fieldWeight in 140, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0625 = fieldNorm(doc=140)
0.33333334 = coord(1/3)
0.28456286 = weight(_text_:2f in 140) [ClassicSimilarity], result of:
0.28456286 = score(doc=140,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.7493574 = fieldWeight in 140, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0625 = fieldNorm(doc=140)
0.5 = coord(2/4)
- Content
- Vgl. auch: https://studylibde.com/doc/13053640/richard-schrodt. Vgl. auch: http%3A%2F%2Fwww.univie.ac.at%2FGermanistik%2Fschrodt%2Fvorlesung%2Fwissenschaftssprache.doc&usg=AOvVaw1lDLDR6NFf1W0-oC9mEUJf.
-
Popper, K.R.: Three worlds : the Tanner lecture on human values. Deliverd at the University of Michigan, April 7, 1978 (1978)
0.19
0.18970858 = product of:
0.37941715 = sum of:
0.09485429 = product of:
0.28456286 = sum of:
0.28456286 = weight(_text_:3a in 230) [ClassicSimilarity], result of:
0.28456286 = score(doc=230,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.7493574 = fieldWeight in 230, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0625 = fieldNorm(doc=230)
0.33333334 = coord(1/3)
0.28456286 = weight(_text_:2f in 230) [ClassicSimilarity], result of:
0.28456286 = score(doc=230,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.7493574 = fieldWeight in 230, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0625 = fieldNorm(doc=230)
0.5 = coord(2/4)
- Source
- https%3A%2F%2Ftannerlectures.utah.edu%2F_documents%2Fa-to-z%2Fp%2Fpopper80.pdf&usg=AOvVaw3f4QRTEH-OEBmoYr2J_c7H
-
Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents
0.19
0.1864826 = product of:
0.3729652 = sum of:
0.071140714 = product of:
0.21342213 = sum of:
0.21342213 = weight(_text_:3a in 2514) [ClassicSimilarity], result of:
0.21342213 = score(doc=2514,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 2514, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.33333334 = coord(1/3)
0.30182448 = weight(_text_:2f in 2514) [ClassicSimilarity], result of:
0.30182448 = score(doc=2514,freq=4.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.7948135 = fieldWeight in 2514, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.5 = coord(2/4)
- Content
- Vgl.: http%3A%2F%2Fdelab.csd.auth.gr%2F~dimitris%2Fcourses%2Fir_spring06%2Fpage_rank_computing%2Fp527-li.pdf. Vgl. auch: http://www2002.org/CDROM/refereed/643/.
-
Suchenwirth, L.: Sacherschliessung in Zeiten von Corona : neue Herausforderungen und Chancen (2019)
0.19
0.1864826 = product of:
0.3729652 = sum of:
0.071140714 = product of:
0.21342213 = sum of:
0.21342213 = weight(_text_:3a in 484) [ClassicSimilarity], result of:
0.21342213 = score(doc=484,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 484, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=484)
0.33333334 = coord(1/3)
0.30182448 = weight(_text_:2f in 484) [ClassicSimilarity], result of:
0.30182448 = score(doc=484,freq=4.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.7948135 = fieldWeight in 484, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=484)
0.5 = coord(2/4)
- Footnote
- https%3A%2F%2Fjournals.univie.ac.at%2Findex.php%2Fvoebm%2Farticle%2Fdownload%2F5332%2F5271%2F&usg=AOvVaw2yQdFGHlmOwVls7ANCpTii.
-
Vetere, G.; Lenzerini, M.: Models for semantic interoperability in service-oriented architectures (2005)
0.17
0.165995 = product of:
0.33199 = sum of:
0.0829975 = product of:
0.2489925 = sum of:
0.2489925 = weight(_text_:3a in 306) [ClassicSimilarity], result of:
0.2489925 = score(doc=306,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.65568775 = fieldWeight in 306, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0546875 = fieldNorm(doc=306)
0.33333334 = coord(1/3)
0.2489925 = weight(_text_:2f in 306) [ClassicSimilarity], result of:
0.2489925 = score(doc=306,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.65568775 = fieldWeight in 306, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0546875 = fieldNorm(doc=306)
0.5 = coord(2/4)
- Content
- Vgl.: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5386707&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5386707.
-
Mas, S.; Marleau, Y.: Proposition of a faceted classification model to support corporate information organization and digital records management (2009)
0.14
0.14228143 = product of:
0.28456286 = sum of:
0.071140714 = product of:
0.21342213 = sum of:
0.21342213 = weight(_text_:3a in 2918) [ClassicSimilarity], result of:
0.21342213 = score(doc=2918,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 2918, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2918)
0.33333334 = coord(1/3)
0.21342213 = weight(_text_:2f in 2918) [ClassicSimilarity], result of:
0.21342213 = score(doc=2918,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 2918, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2918)
0.5 = coord(2/4)
- Footnote
- Vgl.: http://ieeexplore.ieee.org/Xplore/login.jsp?reload=true&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4755313%2F4755314%2F04755480.pdf%3Farnumber%3D4755480&authDecision=-203.
-
Zeng, Q.; Yu, M.; Yu, W.; Xiong, J.; Shi, Y.; Jiang, M.: Faceted hierarchy : a new graph type to organize scientific concepts and a construction method (2019)
0.14
0.14228143 = product of:
0.28456286 = sum of:
0.071140714 = product of:
0.21342213 = sum of:
0.21342213 = weight(_text_:3a in 400) [ClassicSimilarity], result of:
0.21342213 = score(doc=400,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 400, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=400)
0.33333334 = coord(1/3)
0.21342213 = weight(_text_:2f in 400) [ClassicSimilarity], result of:
0.21342213 = score(doc=400,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 400, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=400)
0.5 = coord(2/4)
- Content
- Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.
-
Noever, D.; Ciolino, M.: ¬The Turing deception (2022)
0.14
0.14228143 = product of:
0.28456286 = sum of:
0.071140714 = product of:
0.21342213 = sum of:
0.21342213 = weight(_text_:3a in 862) [ClassicSimilarity], result of:
0.21342213 = score(doc=862,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 862, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=862)
0.33333334 = coord(1/3)
0.21342213 = weight(_text_:2f in 862) [ClassicSimilarity], result of:
0.21342213 = score(doc=862,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.56201804 = fieldWeight in 862, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=862)
0.5 = coord(2/4)
- Source
- https%3A%2F%2Farxiv.org%2Fabs%2F2212.06721&usg=AOvVaw3i_9pZm9y_dQWoHi6uv0EN
-
Donsbach, W.: Wahrheit in den Medien : über den Sinn eines methodischen Objektivitätsbegriffes (2001)
0.12
0.118567854 = product of:
0.23713571 = sum of:
0.059283927 = product of:
0.17785178 = sum of:
0.17785178 = weight(_text_:3a in 5895) [ClassicSimilarity], result of:
0.17785178 = score(doc=5895,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.46834838 = fieldWeight in 5895, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0390625 = fieldNorm(doc=5895)
0.33333334 = coord(1/3)
0.17785178 = weight(_text_:2f in 5895) [ClassicSimilarity], result of:
0.17785178 = score(doc=5895,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.46834838 = fieldWeight in 5895, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0390625 = fieldNorm(doc=5895)
0.5 = coord(2/4)
- Source
- Politische Meinung. 381(2001) Nr.1, S.65-74 [https%3A%2F%2Fwww.dgfe.de%2Ffileadmin%2FOrdnerRedakteure%2FSektionen%2FSek02_AEW%2FKWF%2FPublikationen_Reihe_1989-2003%2FBand_17%2FBd_17_1994_355-406_A.pdf&usg=AOvVaw2KcbRsHy5UQ9QRIUyuOLNi]
-
Malsburg, C. von der: ¬The correlation theory of brain function (1981)
0.12
0.118567854 = product of:
0.23713571 = sum of:
0.059283927 = product of:
0.17785178 = sum of:
0.17785178 = weight(_text_:3a in 76) [ClassicSimilarity], result of:
0.17785178 = score(doc=76,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.46834838 = fieldWeight in 76, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0390625 = fieldNorm(doc=76)
0.33333334 = coord(1/3)
0.17785178 = weight(_text_:2f in 76) [ClassicSimilarity], result of:
0.17785178 = score(doc=76,freq=2.0), product of:
0.3797425 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.04479146 = queryNorm
0.46834838 = fieldWeight in 76, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0390625 = fieldNorm(doc=76)
0.5 = coord(2/4)
- Source
- http%3A%2F%2Fcogprints.org%2F1380%2F1%2FvdM_correlation.pdf&usg=AOvVaw0g7DvZbQPb2U7dYb49b9v_
-
Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000)
0.11
0.11066668 = product of:
0.22133335 = sum of:
0.17885299 = weight(_text_:engines in 3445) [ClassicSimilarity], result of:
0.17885299 = score(doc=3445,freq=2.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.7858995 = fieldWeight in 3445, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.109375 = fieldNorm(doc=3445)
0.042480372 = product of:
0.084960744 = sum of:
0.084960744 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
0.084960744 = score(doc=3445,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = 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)
0.5 = coord(2/4)
- Date
- 25. 8.2005 17:42:22
-
Dunning, A.: Do we still need search engines? (1999)
0.11
0.11066668 = product of:
0.22133335 = sum of:
0.17885299 = weight(_text_:engines in 6021) [ClassicSimilarity], result of:
0.17885299 = score(doc=6021,freq=2.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.7858995 = fieldWeight in 6021, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.109375 = fieldNorm(doc=6021)
0.042480372 = product of:
0.084960744 = sum of:
0.084960744 = weight(_text_:22 in 6021) [ClassicSimilarity], result of:
0.084960744 = score(doc=6021,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = queryNorm
0.5416616 = fieldWeight in 6021, 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=6021)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Source
- Ariadne. 1999, no.22
-
Hsieh-Yee, I.: ¬The retrieval power of selected search engines : how well do they address general reference questions and subject questions? (1998)
0.11
0.11060197 = product of:
0.22120394 = sum of:
0.19996375 = weight(_text_:engines in 2186) [ClassicSimilarity], result of:
0.19996375 = score(doc=2186,freq=10.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.87866247 = fieldWeight in 2186, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0546875 = fieldNorm(doc=2186)
0.021240186 = product of:
0.042480372 = sum of:
0.042480372 = weight(_text_:22 in 2186) [ClassicSimilarity], result of:
0.042480372 = score(doc=2186,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = queryNorm
0.2708308 = fieldWeight in 2186, 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=2186)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- Evaluates the performance of 8 major Internet search engines in answering 21 real reference questions and 5 made up subject questions. Reports on the retrieval and relevancy ranking abilities of the search engines. Concludes that the search engines did not produce good results for the reference questions unlike for the subject questions. The best engines are identified by type of questions, with Infoseek best for the subject questions, and OpenText best for refrence questions
- Date
- 25.12.1998 19:22:51
-
Su, L.T.: ¬A comprehensive and systematic model of user evaluation of Web search engines : Il. An evaluation by undergraduates (2003)
0.11
0.10858273 = product of:
0.21716546 = sum of:
0.2019939 = weight(_text_:engines in 2117) [ClassicSimilarity], result of:
0.2019939 = score(doc=2117,freq=20.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.88758314 = fieldWeight in 2117, product of:
4.472136 = tf(freq=20.0), with freq of:
20.0 = termFreq=20.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0390625 = fieldNorm(doc=2117)
0.015171562 = product of:
0.030343125 = sum of:
0.030343125 = weight(_text_:22 in 2117) [ClassicSimilarity], result of:
0.030343125 = score(doc=2117,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = queryNorm
0.19345059 = fieldWeight in 2117, 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=2117)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- This paper presents an application of the model described in Part I to the evaluation of Web search engines by undergraduates. The study observed how 36 undergraduate used four major search engines to find information for their own individual problems and how they evaluated these engines based an actual interaction with the search engines. User evaluation was based an 16 performance measures representing five evaluation criteria: relevance, efficiency, utility, user satisfaction, and connectivity. Non-performance (user-related) measures were also applied. Each participant searched his/ her own topic an all four engines and provided satisfaction ratings for system features and interaction and reasons for satisfaction. Each also made relevance judgements of retrieved items in relation to his/her own information need and participated in post-search Interviews to provide reactions to the search results and overall performance. The study found significant differences in precision PR1 relative recall, user satisfaction with output display, time saving, value of search results, and overall performance among the four engines and also significant engine by discipline interactions an all these measures. In addition, the study found significant differences in user satisfaction with response time among four engines, and significant engine by discipline interaction in user satisfaction with search interface. None of the four search engines dominated in every aspect of the multidimensional evaluation. Content analysis of verbal data identified a number of user criteria and users evaluative comments based an these criteria. Results from both quantitative analysis and content analysis provide insight for system design and development, and useful feedback an strengths and weaknesses of search engines for system improvement
- Date
- 24. 1.2004 18:27:22
-
Conhaim, W.W.: Search tools (1996)
0.10
0.10064654 = product of:
0.20129308 = sum of:
0.17701858 = weight(_text_:engines in 4738) [ClassicSimilarity], result of:
0.17701858 = score(doc=4738,freq=6.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.7778389 = fieldWeight in 4738, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0625 = fieldNorm(doc=4738)
0.024274498 = product of:
0.048548996 = sum of:
0.048548996 = weight(_text_:22 in 4738) [ClassicSimilarity], result of:
0.048548996 = score(doc=4738,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = queryNorm
0.30952093 = fieldWeight in 4738, 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=4738)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- Describes the 3 most popular searching tools for the WWW: InfoSeek, Yahoo and Lycos. Searching Internet directories can also be a useful search technique. Lists other searching engines. Points out a number of evaluations of these search engines published on the WWW. A number of search tools are available for specialized areas. Sites are available that enable parallel searching using several tools at once. Describes WWW pages with information about search engines
- Date
- 1. 8.1996 22:39:31
-
Notess, G.R.: Toward more comprehensive Web searching : single searching versus megasearching (1998)
0.10
0.10064654 = product of:
0.20129308 = sum of:
0.17701858 = weight(_text_:engines in 3278) [ClassicSimilarity], result of:
0.17701858 = score(doc=3278,freq=6.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.7778389 = fieldWeight in 3278, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0625 = fieldNorm(doc=3278)
0.024274498 = product of:
0.048548996 = sum of:
0.048548996 = weight(_text_:22 in 3278) [ClassicSimilarity], result of:
0.048548996 = score(doc=3278,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = queryNorm
0.30952093 = fieldWeight in 3278, 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=3278)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- In spite of their size, the major Web indexes are not comprehensive. Considers approaches carrying out comprehensive searches, highlighting their advantages and disadvantages. In the single search tool approach, users search the largest of the databses one by one, using the command language uniqe to each to increase the precision of the esearch. In the megasearch approach, search engines use 1 form that simultaneously seands a single query to a number of search engines and then presents the results. Inference Find, Dogpile and MetaFind are examples of good metasearch engines
- Source
- Online. 22(1998) no.2, S.73-76
-
Berinstein, P.: Turning visual : image search engines on the Web (1998)
0.10
0.10064654 = product of:
0.20129308 = sum of:
0.17701858 = weight(_text_:engines in 3595) [ClassicSimilarity], result of:
0.17701858 = score(doc=3595,freq=6.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.7778389 = fieldWeight in 3595, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0625 = fieldNorm(doc=3595)
0.024274498 = product of:
0.048548996 = sum of:
0.048548996 = weight(_text_:22 in 3595) [ClassicSimilarity], result of:
0.048548996 = score(doc=3595,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = queryNorm
0.30952093 = fieldWeight in 3595, 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=3595)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- Gives an overview of image search engines on the Web. They work by: looking for graphics files; looking for a caption; looking for Web sites whose titles indicate the presence of picturres on a certain subject; or employing human intervention. Describes the image search capabilities of: AltaVista; Amazing Picture Machine (Http://www.ncrtec.org/picture.htm); HotBot; ImageSurfer (http://ipix.yahoo.com); Lycos; Web Clip Art Search Engine and WebSEEK. The search engines employing human intervention provide the best results
- Source
- Online. 22(1998) no.3, S.37-38,40-42
-
Marchiori, M.: ¬The quest for correct information on the Web : hyper search engines (1997)
0.10
0.10004659 = product of:
0.20009318 = sum of:
0.17885299 = weight(_text_:engines in 7453) [ClassicSimilarity], result of:
0.17885299 = score(doc=7453,freq=8.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.7858995 = fieldWeight in 7453, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0546875 = fieldNorm(doc=7453)
0.021240186 = product of:
0.042480372 = sum of:
0.042480372 = weight(_text_:22 in 7453) [ClassicSimilarity], result of:
0.042480372 = score(doc=7453,freq=2.0), product of:
0.15685207 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04479146 = queryNorm
0.2708308 = fieldWeight in 7453, 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=7453)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- Presents a novel method to extract from a web object its hyper informative content, in contrast with current search engines, which only deal with the textual information content. This method is not only valuable per se, but it is shown to be able to considerably increase the precision of current search engines. It integrates with existing search engine technology since it can be implemented on top of every search engine, acting as a post-processor, thus automatically transforming a search engine into its corresponding hyper version. Shows how the hyper information can be usefully employed to face the search engines persuasion problem
- Date
- 1. 8.1996 22:08:06
-
Fan, W.; Gordon, M.D.; Pathak, P.: ¬A generic ranking function discovery framework by genetic programming for information retrieval (2004)
0.10
0.09734263 = product of:
0.19468527 = sum of:
0.089426495 = weight(_text_:engines in 2554) [ClassicSimilarity], result of:
0.089426495 = score(doc=2554,freq=2.0), product of:
0.22757743 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.04479146 = queryNorm
0.39294976 = fieldWeight in 2554, 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=2554)
0.10525877 = product of:
0.21051754 = sum of:
0.21051754 = weight(_text_:programming in 2554) [ClassicSimilarity], result of:
0.21051754 = score(doc=2554,freq=4.0), product of:
0.29361802 = queryWeight, product of:
6.5552235 = idf(docFreq=170, maxDocs=44218)
0.04479146 = queryNorm
0.7169776 = fieldWeight in 2554, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
6.5552235 = idf(docFreq=170, maxDocs=44218)
0.0546875 = fieldNorm(doc=2554)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- Ranking functions play a substantial role in the performance of information retrieval (IR) systems and search engines. Although there are many ranking functions available in the IR literature, various empirical evaluation studies show that ranking functions do not perform consistently well across different contexts (queries, collections, users). Moreover, it is often difficult and very expensive for human beings to design optimal ranking functions that work well in all these contexts. In this paper, we propose a novel ranking function discovery framework based on Genetic Programming and show through various experiments how this new framework helps automate the ranking function design/discovery process.