-
Ding, Y.; Foo, S.: Ontology research and development : part 1 - a review of ontology generation (2002)
0.05
0.047210444 = product of:
0.18884178 = sum of:
0.06294726 = weight(_text_:23 in 3808) [ClassicSimilarity], result of:
0.06294726 = score(doc=3808,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.55438095 = fieldWeight in 3808, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.109375 = fieldNorm(doc=3808)
0.06294726 = weight(_text_:23 in 3808) [ClassicSimilarity], result of:
0.06294726 = score(doc=3808,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.55438095 = fieldWeight in 3808, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.109375 = fieldNorm(doc=3808)
0.06294726 = weight(_text_:23 in 3808) [ClassicSimilarity], result of:
0.06294726 = score(doc=3808,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.55438095 = fieldWeight in 3808, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.109375 = fieldNorm(doc=3808)
0.25 = coord(3/12)
- Date
- 12. 8.2005 14:25:23
-
Ding, Y.; Foo, S.: Ontology research and development : part 2 - a review of ontology mapping and evolving (2002)
0.04
0.040466096 = product of:
0.16186439 = sum of:
0.053954795 = weight(_text_:23 in 3835) [ClassicSimilarity], result of:
0.053954795 = score(doc=3835,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.47518367 = fieldWeight in 3835, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.09375 = fieldNorm(doc=3835)
0.053954795 = weight(_text_:23 in 3835) [ClassicSimilarity], result of:
0.053954795 = score(doc=3835,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.47518367 = fieldWeight in 3835, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.09375 = fieldNorm(doc=3835)
0.053954795 = weight(_text_:23 in 3835) [ClassicSimilarity], result of:
0.053954795 = score(doc=3835,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.47518367 = fieldWeight in 3835, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.09375 = fieldNorm(doc=3835)
0.25 = coord(3/12)
- Date
- 12. 8.2005 14:26:23
-
Ding, Y.: Scholarly communication and bibliometrics : Part 1: The scholarly communication model: literature review (1998)
0.03
0.03372175 = product of:
0.134887 = sum of:
0.04496233 = weight(_text_:23 in 3995) [ClassicSimilarity], result of:
0.04496233 = score(doc=3995,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.3959864 = fieldWeight in 3995, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.078125 = fieldNorm(doc=3995)
0.04496233 = weight(_text_:23 in 3995) [ClassicSimilarity], result of:
0.04496233 = score(doc=3995,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.3959864 = fieldWeight in 3995, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.078125 = fieldNorm(doc=3995)
0.04496233 = weight(_text_:23 in 3995) [ClassicSimilarity], result of:
0.04496233 = score(doc=3995,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.3959864 = fieldWeight in 3995, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.078125 = fieldNorm(doc=3995)
0.25 = coord(3/12)
- Source
- International forum on information and documentation. 23(1998) no.2, S.20-29
-
Yan, E.; Ding, Y.: Weighted citation : an indicator of an article's prestige (2010)
0.03
0.026977398 = product of:
0.10790959 = sum of:
0.035969865 = weight(_text_:23 in 3705) [ClassicSimilarity], result of:
0.035969865 = score(doc=3705,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.31678912 = fieldWeight in 3705, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0625 = fieldNorm(doc=3705)
0.035969865 = weight(_text_:23 in 3705) [ClassicSimilarity], result of:
0.035969865 = score(doc=3705,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.31678912 = fieldWeight in 3705, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0625 = fieldNorm(doc=3705)
0.035969865 = weight(_text_:23 in 3705) [ClassicSimilarity], result of:
0.035969865 = score(doc=3705,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.31678912 = fieldWeight in 3705, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0625 = fieldNorm(doc=3705)
0.25 = coord(3/12)
- Date
- 23. 7.2010 13:12:05
-
Yan, E.; Ding, Y.: Discovering author impact : a PageRank perspective (2011)
0.03
0.026977398 = product of:
0.10790959 = sum of:
0.035969865 = weight(_text_:23 in 2704) [ClassicSimilarity], result of:
0.035969865 = score(doc=2704,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.31678912 = fieldWeight in 2704, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0625 = fieldNorm(doc=2704)
0.035969865 = weight(_text_:23 in 2704) [ClassicSimilarity], result of:
0.035969865 = score(doc=2704,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.31678912 = fieldWeight in 2704, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0625 = fieldNorm(doc=2704)
0.035969865 = weight(_text_:23 in 2704) [ClassicSimilarity], result of:
0.035969865 = score(doc=2704,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.31678912 = fieldWeight in 2704, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0625 = fieldNorm(doc=2704)
0.25 = coord(3/12)
- Date
- 23. 1.2011 17:07:35
-
Ding, Y.: Visualization of intellectual structure in information retrieval : author cocitation analysis (1998)
0.02
0.023605222 = product of:
0.09442089 = sum of:
0.03147363 = weight(_text_:23 in 2792) [ClassicSimilarity], result of:
0.03147363 = score(doc=2792,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.27719048 = fieldWeight in 2792, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0546875 = fieldNorm(doc=2792)
0.03147363 = weight(_text_:23 in 2792) [ClassicSimilarity], result of:
0.03147363 = score(doc=2792,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.27719048 = fieldWeight in 2792, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0546875 = fieldNorm(doc=2792)
0.03147363 = weight(_text_:23 in 2792) [ClassicSimilarity], result of:
0.03147363 = score(doc=2792,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.27719048 = fieldWeight in 2792, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.0546875 = fieldNorm(doc=2792)
0.25 = coord(3/12)
- Source
- International forum on information and documentation. 23(1998) no.1, S.25-36
-
Ding, Y.: Topic-based PageRank on author cocitation networks (2011)
0.02
0.020233048 = product of:
0.08093219 = sum of:
0.026977398 = weight(_text_:23 in 4348) [ClassicSimilarity], result of:
0.026977398 = score(doc=4348,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.23759183 = fieldWeight in 4348, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.046875 = fieldNorm(doc=4348)
0.026977398 = weight(_text_:23 in 4348) [ClassicSimilarity], result of:
0.026977398 = score(doc=4348,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.23759183 = fieldWeight in 4348, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.046875 = fieldNorm(doc=4348)
0.026977398 = weight(_text_:23 in 4348) [ClassicSimilarity], result of:
0.026977398 = score(doc=4348,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.23759183 = fieldWeight in 4348, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.046875 = fieldNorm(doc=4348)
0.25 = coord(3/12)
- Date
- 17. 3.2011 18:08:23
-
Ni, C.; Shaw, D.; Lind, S.M.; Ding, Y.: Journal impact and proximity : an assessment using bibliographic features (2013)
0.02
0.020233048 = product of:
0.08093219 = sum of:
0.026977398 = weight(_text_:23 in 686) [ClassicSimilarity], result of:
0.026977398 = score(doc=686,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.23759183 = fieldWeight in 686, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.046875 = fieldNorm(doc=686)
0.026977398 = weight(_text_:23 in 686) [ClassicSimilarity], result of:
0.026977398 = score(doc=686,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.23759183 = fieldWeight in 686, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.046875 = fieldNorm(doc=686)
0.026977398 = weight(_text_:23 in 686) [ClassicSimilarity], result of:
0.026977398 = score(doc=686,freq=2.0), product of:
0.113545135 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.03168059 = queryNorm
0.23759183 = fieldWeight in 686, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.046875 = fieldNorm(doc=686)
0.25 = coord(3/12)
- Date
- 23. 3.2013 13:07:39
-
Ding, Y.; Chowdhury, G.; Foo, S.: Organsising keywords in a Web search environment : a methodology based on co-word analysis (2000)
0.00
0.0015253572 = product of:
0.018304287 = sum of:
0.018304287 = weight(_text_:internet in 105) [ClassicSimilarity], result of:
0.018304287 = score(doc=105,freq=2.0), product of:
0.0935287 = queryWeight, product of:
2.9522398 = idf(docFreq=6276, maxDocs=44218)
0.03168059 = queryNorm
0.1957077 = fieldWeight in 105, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.9522398 = idf(docFreq=6276, maxDocs=44218)
0.046875 = fieldNorm(doc=105)
0.083333336 = coord(1/12)
- Abstract
- The rapid development of the Internet and World Wide Web has caused some critical problem for information retrieval. Researchers have made several attempts to solve these problems. Thesauri and subject heading lists as traditional information retrieval tools have been criticised for their efficiency to tackle these newly emerging problems. This paper proposes an information retrieval tool generated by cocitation analysis, comprising keyword clusters with relationships based on the co-occurrences of keywords in the literature. Such a tool can play the role of an associative thesaurus that can provide information about the keywords in a domain that might be useful for information searching and query expansion
-
Milojevic, S.; Sugimoto, C.R.; Yan, E.; Ding, Y.: ¬The cognitive structure of Library and Information Science : analysis of article title words (2011)
0.00
0.0012711311 = product of:
0.015253573 = sum of:
0.015253573 = weight(_text_:internet in 4608) [ClassicSimilarity], result of:
0.015253573 = score(doc=4608,freq=2.0), product of:
0.0935287 = queryWeight, product of:
2.9522398 = idf(docFreq=6276, maxDocs=44218)
0.03168059 = queryNorm
0.16308975 = fieldWeight in 4608, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.9522398 = idf(docFreq=6276, maxDocs=44218)
0.0390625 = fieldNorm(doc=4608)
0.083333336 = coord(1/12)
- Abstract
- This study comprises a suite of analyses of words in article titles in order to reveal the cognitive structure of Library and Information Science (LIS). The use of title words to elucidate the cognitive structure of LIS has been relatively neglected. The present study addresses this gap by performing (a) co-word analysis and hierarchical clustering, (b) multidimensional scaling, and (c) determination of trends in usage of terms. The study is based on 10,344 articles published between 1988 and 2007 in 16 LIS journals. Methodologically, novel aspects of this study are: (a) its large scale, (b) removal of non-specific title words based on the "word concentration" measure (c) identification of the most frequent terms that include both single words and phrases, and (d) presentation of the relative frequencies of terms using "heatmaps". Conceptually, our analysis reveals that LIS consists of three main branches: the traditionally recognized library-related and information-related branches, plus an equally distinct bibliometrics/scientometrics branch. The three branches focus on: libraries, information, and science, respectively. In addition, our study identifies substructures within each branch. We also tentatively identify "information seeking behavior" as a branch that is establishing itself separate from the three main branches. Furthermore, we find that cognitive concepts in LIS evolve continuously, with no stasis since 1992. The most rapid development occurred between 1998 and 2001, influenced by the increased focus on the Internet. The change in the cognitive landscape is found to be driven by the emergence of new information technologies, and the retirement of old ones.
-
Li, D.; Luo, Z.; Ding, Y.; Tang, J.; Sun, G.G.-Z.; Dai, X.; Du, J.; Zhang, J.; Kong, S.: User-level microblogging recommendation incorporating social influence (2017)
0.00
0.0012711311 = product of:
0.015253573 = sum of:
0.015253573 = weight(_text_:internet in 3426) [ClassicSimilarity], result of:
0.015253573 = score(doc=3426,freq=2.0), product of:
0.0935287 = queryWeight, product of:
2.9522398 = idf(docFreq=6276, maxDocs=44218)
0.03168059 = queryNorm
0.16308975 = fieldWeight in 3426, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.9522398 = idf(docFreq=6276, maxDocs=44218)
0.0390625 = fieldNorm(doc=3426)
0.083333336 = coord(1/12)
- Theme
- Internet
-
Ding, Y.: Applying weighted PageRank to author citation networks (2011)
0.00
8.3461055E-4 = product of:
0.010015327 = sum of:
0.010015327 = product of:
0.030045979 = sum of:
0.030045979 = weight(_text_:22 in 4188) [ClassicSimilarity], result of:
0.030045979 = score(doc=4188,freq=2.0), product of:
0.11094003 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03168059 = queryNorm
0.2708308 = fieldWeight in 4188, 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=4188)
0.33333334 = coord(1/3)
0.083333336 = coord(1/12)
- Date
- 22. 1.2011 13:02:21
-
Ding, Y.; Zhang, G.; Chambers, T.; Song, M.; Wang, X.; Zhai, C.: Content-based citation analysis : the next generation of citation analysis (2014)
0.00
7.153805E-4 = product of:
0.0085845655 = sum of:
0.0085845655 = product of:
0.025753696 = sum of:
0.025753696 = weight(_text_:22 in 1521) [ClassicSimilarity], result of:
0.025753696 = score(doc=1521,freq=2.0), product of:
0.11094003 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03168059 = queryNorm
0.23214069 = fieldWeight in 1521, 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=1521)
0.33333334 = coord(1/3)
0.083333336 = coord(1/12)
- Date
- 22. 8.2014 16:52:04
