-
Lee, C.P.; Trace, C.B.: ¬The role of information in a community of hobbyist collectors (2009)
0.00
0.0039652926 = product of:
0.01586117 = sum of:
0.01586117 = product of:
0.03172234 = sum of:
0.03172234 = weight(_text_:22 in 2744) [ClassicSimilarity], result of:
0.03172234 = score(doc=2744,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.19345059 = fieldWeight in 2744, 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=2744)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 22. 3.2009 18:01:49
-
Friman, J.; Kangaspunta, J.; Leppäniemi, S.; Rasi, P.; Virrankoski, A.: Query performance analyser : a tool for teaching information retrieval skills through an educational game (2005)
0.00
0.0039652926 = product of:
0.01586117 = sum of:
0.01586117 = product of:
0.03172234 = sum of:
0.03172234 = weight(_text_:22 in 3010) [ClassicSimilarity], result of:
0.03172234 = score(doc=3010,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.19345059 = fieldWeight in 3010, 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=3010)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 22. 7.2009 11:03:43
-
Lercher, A.: Efficiency of scientific communication : a survey of world science (2010)
0.00
0.0039652926 = product of:
0.01586117 = sum of:
0.01586117 = product of:
0.03172234 = sum of:
0.03172234 = weight(_text_:22 in 3997) [ClassicSimilarity], result of:
0.03172234 = score(doc=3997,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.19345059 = fieldWeight in 3997, 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=3997)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Abstract
- The aim of this study was to measure the efficiency of the system by which scientists worldwide communicate results to each other, providing one measure of the degree to which the system, including all media, functions well. A randomly selected and representative sample of 246 active research scientists worldwide was surveyed. The main measure was the reported rate of "late finds": scientific literature that would have been useful to scientists' projects if it had been found at the beginning of these projects. The main result was that 46% of the sample reported late finds (±6.25%, p0.05). Among respondents from European Union countries or other countries classified as "high income" by the World Bank, 42% reported late finds. Among respondents from low- and middle-income countries, 56% reported late finds. The 42% rate in high-income countries in 2009 can be compared with results of earlier surveys by Martyn (1964a, b, 1987). These earlier surveys found a rate of 22% late finds in 1963-1964 and a rate of 27% in 1985-1986. Respondents were also queried about search habits, but this study failed to support any explanations for this increase in the rate of late finds. This study also permits a crude estimate of the cost in time and money of the increase in late finds.
-
Cole, C.; Behesthi, J.; Large, A.; Lamoureux, I.; Abuhimed, D.; AlGhamdi, M.: Seeking information for a middle school history project : the concept of implicit knowledge in the students' transition from Kuhlthau's Stage 3 to Stage 4 (2013)
0.00
0.0039652926 = product of:
0.01586117 = sum of:
0.01586117 = product of:
0.03172234 = sum of:
0.03172234 = weight(_text_:22 in 667) [ClassicSimilarity], result of:
0.03172234 = score(doc=667,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.19345059 = 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)
0.0390625 = fieldNorm(doc=667)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 22. 3.2013 19:41:17
-
Bodoff, D.; Raban, D.: Question types and intermediary elicitations (2016)
0.00
0.0039652926 = product of:
0.01586117 = sum of:
0.01586117 = product of:
0.03172234 = sum of:
0.03172234 = weight(_text_:22 in 2638) [ClassicSimilarity], result of:
0.03172234 = score(doc=2638,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.19345059 = fieldWeight in 2638, 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=2638)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 22. 1.2016 11:58:25
-
Chew, S.W.; Khoo, K.S.G.: Comparison of drug information on consumer drug review sites versus authoritative health information websites (2016)
0.00
0.0039652926 = product of:
0.01586117 = sum of:
0.01586117 = product of:
0.03172234 = sum of:
0.03172234 = weight(_text_:22 in 2643) [ClassicSimilarity], result of:
0.03172234 = score(doc=2643,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.19345059 = fieldWeight in 2643, 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=2643)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 22. 1.2016 12:24:05
-
Jaskolla, L.; Rugel, M.: Smart questions : steps towards an ontology of questions and answers (2014)
0.00
0.0039652926 = product of:
0.01586117 = sum of:
0.01586117 = product of:
0.03172234 = sum of:
0.03172234 = weight(_text_:22 in 3404) [ClassicSimilarity], result of:
0.03172234 = score(doc=3404,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.19345059 = fieldWeight in 3404, 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=3404)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 9. 2.2017 19:22:59
-
Katz, W.A.: Introduction to reference work : Vol.1: Basic information sources; vol.2: Reference services and reference processes (1992)
0.00
0.0032331275 = product of:
0.01293251 = sum of:
0.01293251 = weight(_text_:data in 3364) [ClassicSimilarity], result of:
0.01293251 = score(doc=3364,freq=2.0), product of:
0.14807065 = queryWeight, product of:
3.1620505 = idf(docFreq=5088, maxDocs=44218)
0.046827413 = queryNorm
0.08734013 = fieldWeight in 3364, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1620505 = idf(docFreq=5088, maxDocs=44218)
0.01953125 = fieldNorm(doc=3364)
0.25 = coord(1/4)
- Content
- Volume 1 is divided into three parts. Part One (Chapters 1 and 2) constitutes an introduction to the reference process and automated reference services. Part Two, "Information: Control and Access," consists of Chapters 3 through 6 and covers an introduction to bibliographies, indexing, and abstracting services. Chapters 7 through 12 are in Part Three, "Sources of Information," which include encyclopedias, various ready reference sources, biographical sources, dictionaries, geographical sources, and government documents. It is as pointless for students to memorize details about specific reference sources, as it is necessary for them to grasp the essential areas of agreement and difference among the various forms. To this end, every effort is made to compare rather than to detail. Only basic or foundation reference works are discussed in this volume. But readers may not find all basic titles included or annotated because: (1) There is no consensus an what constitutes "basic". (2) The objective of this text is to discuss various forms, and the titles used for that purpose are those that best illustrate those forms. (3) The annotations for a specific title are duplicated over and over again in Guide to Reference Books and Guide to Reference Materials, which list the numerous subject bibliographies. In both volumes, suggested readings are found in the footnotes and at the end of each chapter. When a publication is cited in a footnote, the reference is rarely duplicated in the "Suggested Reading." For the most part, these readings are limited to publications issued since 1987. In addition to providing readers with current thinking, these more recent citations have the added bonus of making it easier for the student to locate the readings. A number of the suggested reading items will be found in Reference and Information Sources, A Reader, 4th ed., published by Scarecrow Press, in 1991. It is beyond argument, of course, that all readings need not necessarily be current and that many older articles and books are as valuable today as they were when first published. Thanks to many teachers' having retained earlier editions of this text and the aforementioned Scarecrow title, it is possible to have a bibliography of previous readings. As has been done in all previous editions, the sixth edition notes prices for most of the major basic titles. This practice seems particularly useful today, since librarians must more and more be aware of budgetary constraints when selecting reference titles. CD-ROMS are listed where available. Prices are based an information either from the publisher of the original reference source or from the publisher of the CD-ROM disc. If a particular work is available online, the gross hourly rate as charged by DIALOG is given for its use. Both this rate and the book prices are current as of late 1990 and are useful in determining relative costs. Bibliographic data are based an publisher's catalogs, Books in print, and examination of the titles. The information is applicable as of late 1990 and, like prices, is subject to change.
-
Orna, E.: Information strategy in practice (2004.)
0.00
0.0027757047 = product of:
0.011102819 = sum of:
0.011102819 = product of:
0.022205638 = sum of:
0.022205638 = weight(_text_:22 in 3589) [ClassicSimilarity], result of:
0.022205638 = score(doc=3589,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.1354154 = fieldWeight in 3589, 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=3589)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 30. 6.2005 20:52:22
-
St. Clair, G.: Beyond degrees : professional learning for knowledge services (2003)
0.00
0.0023791753 = product of:
0.009516701 = sum of:
0.009516701 = product of:
0.019033402 = sum of:
0.019033402 = weight(_text_:22 in 2301) [ClassicSimilarity], result of:
0.019033402 = score(doc=2301,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.116070345 = fieldWeight in 2301, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0234375 = fieldNorm(doc=2301)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 11. 6.2004 14:52:22
-
Covert and overt : recollecting and connecting intelligence service and information science (2005)
0.00
0.002243108 = product of:
0.008972432 = sum of:
0.008972432 = product of:
0.017944865 = sum of:
0.017944865 = weight(_text_:22 in 69) [ClassicSimilarity], result of:
0.017944865 = score(doc=69,freq=4.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.109432176 = fieldWeight in 69, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.015625 = fieldNorm(doc=69)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Classification
- 327.12 22
- DDC
- 327.12 22
-
Lipow, A.G.: ¬The virtual reference librarian's handbook (2003)
0.00
0.0019826463 = product of:
0.007930585 = sum of:
0.007930585 = product of:
0.01586117 = sum of:
0.01586117 = weight(_text_:22 in 3992) [ClassicSimilarity], result of:
0.01586117 = score(doc=3992,freq=2.0), product of:
0.16398162 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046827413 = queryNorm
0.09672529 = fieldWeight in 3992, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.01953125 = fieldNorm(doc=3992)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 22. 3.2004 14:46:50
