-
Chen, Y.-L.; Liu, Y.-H.; Ho, W.-L.: ¬A text mining approach to assist the general public in the retrieval of legal documents (2013)
0.03
0.028404122 = product of:
0.056808244 = sum of:
0.056808244 = product of:
0.085212365 = sum of:
0.018446079 = weight(_text_:h in 521) [ClassicSimilarity], result of:
0.018446079 = score(doc=521,freq=2.0), product of:
0.111999914 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.045080382 = queryNorm
0.16469726 = fieldWeight in 521, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.046875 = fieldNorm(doc=521)
0.066766284 = weight(_text_:l in 521) [ClassicSimilarity], result of:
0.066766284 = score(doc=521,freq=4.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.37262368 = fieldWeight in 521, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=521)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
-
Vaughan, L.; Chen, Y.: Data mining from web search queries : a comparison of Google trends and Baidu index (2015)
0.02
0.023293754 = product of:
0.04658751 = sum of:
0.04658751 = product of:
0.06988126 = sum of:
0.039342407 = weight(_text_:l in 1605) [ClassicSimilarity], result of:
0.039342407 = score(doc=1605,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.2195706 = fieldWeight in 1605, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=1605)
0.03053885 = weight(_text_:22 in 1605) [ClassicSimilarity], result of:
0.03053885 = score(doc=1605,freq=2.0), product of:
0.15786383 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045080382 = queryNorm
0.19345059 = fieldWeight in 1605, 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=1605)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- Journal of the Association for Information Science and Technology. 66(2015) no.1, S.13-22
-
Ku, L.-W.; Chen, H.-H.: Mining opinions from the Web : beyond relevance retrieval (2007)
0.02
0.02036044 = product of:
0.04072088 = sum of:
0.04072088 = product of:
0.06108132 = sum of:
0.021738913 = weight(_text_:h in 605) [ClassicSimilarity], result of:
0.021738913 = score(doc=605,freq=4.0), product of:
0.111999914 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.045080382 = queryNorm
0.1940976 = fieldWeight in 605, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.0390625 = fieldNorm(doc=605)
0.039342407 = weight(_text_:l in 605) [ClassicSimilarity], result of:
0.039342407 = score(doc=605,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.2195706 = fieldWeight in 605, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=605)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
-
Tu, Y.-N.; Hsu, S.-L.: Constructing conceptual trajectory maps to trace the development of research fields (2016)
0.02
0.02036044 = product of:
0.04072088 = sum of:
0.04072088 = product of:
0.06108132 = sum of:
0.021738913 = weight(_text_:h in 3059) [ClassicSimilarity], result of:
0.021738913 = score(doc=3059,freq=4.0), product of:
0.111999914 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.045080382 = queryNorm
0.1940976 = fieldWeight in 3059, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.0390625 = fieldNorm(doc=3059)
0.039342407 = weight(_text_:l in 3059) [ClassicSimilarity], result of:
0.039342407 = score(doc=3059,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.2195706 = fieldWeight in 3059, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=3059)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Abstract
- This study proposes a new method to construct and trace the trajectory of conceptual development of a research field by combining main path analysis, citation analysis, and text-mining techniques. Main path analysis, a method used commonly to trace the most critical path in a citation network, helps describe the developmental trajectory of a research field. This study extends the main path analysis method and applies text-mining techniques in the new method, which reflects the trajectory of conceptual development in an academic research field more accurately than citation frequency, which represents only the articles examined. Articles can be merged based on similarity of concepts, and by merging concepts the history of a research field can be described more precisely. The new method was applied to the "h-index" and "text mining" fields. The precision, recall, and F-measures of the h-index were 0.738, 0.652, and 0.658 and those of text-mining were 0.501, 0.653, and 0.551, respectively. Last, this study not only establishes the conceptual trajectory map of a research field, but also recommends keywords that are more precise than those used currently by researchers. These precise keywords could enable researchers to gather related works more quickly than before.
-
Jäger, L.: Von Big Data zu Big Brother (2018)
0.02
0.018635003 = product of:
0.037270006 = sum of:
0.037270006 = product of:
0.055905007 = sum of:
0.031473927 = weight(_text_:l in 5234) [ClassicSimilarity], result of:
0.031473927 = score(doc=5234,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.17565648 = fieldWeight in 5234, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.03125 = fieldNorm(doc=5234)
0.02443108 = weight(_text_:22 in 5234) [ClassicSimilarity], result of:
0.02443108 = score(doc=5234,freq=2.0), product of:
0.15786383 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045080382 = queryNorm
0.15476047 = fieldWeight in 5234, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=5234)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 22. 1.2018 11:33:49
-
Budzik, J.; Hammond, K.J.; Birnbaum, L.: Information access in context (2001)
0.02
0.018359791 = product of:
0.036719583 = sum of:
0.036719583 = product of:
0.11015875 = sum of:
0.11015875 = weight(_text_:l in 3835) [ClassicSimilarity], result of:
0.11015875 = score(doc=3835,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.6147977 = fieldWeight in 3835, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.109375 = fieldNorm(doc=3835)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Chowdhury, G.G.: Template mining for information extraction from digital documents (1999)
0.01
0.014251463 = product of:
0.028502926 = sum of:
0.028502926 = product of:
0.08550878 = sum of:
0.08550878 = weight(_text_:22 in 4577) [ClassicSimilarity], result of:
0.08550878 = score(doc=4577,freq=2.0), product of:
0.15786383 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045080382 = queryNorm
0.5416616 = fieldWeight in 4577, 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=4577)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 2. 4.2000 18:01:22
-
KDD : techniques and applications (1998)
0.01
0.012215539 = product of:
0.024431078 = sum of:
0.024431078 = product of:
0.07329323 = sum of:
0.07329323 = weight(_text_:22 in 6783) [ClassicSimilarity], result of:
0.07329323 = score(doc=6783,freq=2.0), product of:
0.15786383 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045080382 = queryNorm
0.46428138 = fieldWeight in 6783, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=6783)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Footnote
- A special issue of selected papers from the Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD'97), held Singapore, 22-23 Feb 1997
-
Methodologies for knowledge discovery and data mining : Third Pacific-Asia Conference, PAKDD'99, Beijing, China, April 26-28, 1999, Proceedings (1999)
0.01
0.009179896 = product of:
0.018359791 = sum of:
0.018359791 = product of:
0.055079374 = sum of:
0.055079374 = weight(_text_:l in 3821) [ClassicSimilarity], result of:
0.055079374 = score(doc=3821,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.30739886 = fieldWeight in 3821, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=3821)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Editor
- Zhou, L.
-
Zhou, L.; Chaovalit, P.: Ontology-supported polarity mining (2008)
0.01
0.009179896 = product of:
0.018359791 = sum of:
0.018359791 = product of:
0.055079374 = sum of:
0.055079374 = weight(_text_:l in 1343) [ClassicSimilarity], result of:
0.055079374 = score(doc=1343,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.30739886 = fieldWeight in 1343, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=1343)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Kong, S.; Ye, F.; Feng, L.; Zhao, Z.: Towards the prediction problems of bursting hashtags on Twitter (2015)
0.01
0.009179896 = product of:
0.018359791 = sum of:
0.018359791 = product of:
0.055079374 = sum of:
0.055079374 = weight(_text_:l in 2338) [ClassicSimilarity], result of:
0.055079374 = score(doc=2338,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.30739886 = fieldWeight in 2338, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=2338)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Maaten, L. van den: Learning a parametric embedding by preserving local structure (2009)
0.01
0.009179896 = product of:
0.018359791 = sum of:
0.018359791 = product of:
0.055079374 = sum of:
0.055079374 = weight(_text_:l in 3883) [ClassicSimilarity], result of:
0.055079374 = score(doc=3883,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.30739886 = fieldWeight in 3883, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=3883)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Maaten, L. van den: Accelerating t-SNE using Tree-Based Algorithms (2014)
0.01
0.009179896 = product of:
0.018359791 = sum of:
0.018359791 = product of:
0.055079374 = sum of:
0.055079374 = weight(_text_:l in 3886) [ClassicSimilarity], result of:
0.055079374 = score(doc=3886,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.30739886 = fieldWeight in 3886, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=3886)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Matson, L.D.; Bonski, D.J.: Do digital libraries need librarians? (1997)
0.01
0.008143693 = product of:
0.016287386 = sum of:
0.016287386 = product of:
0.04886216 = sum of:
0.04886216 = weight(_text_:22 in 1737) [ClassicSimilarity], result of:
0.04886216 = score(doc=1737,freq=2.0), product of:
0.15786383 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045080382 = queryNorm
0.30952093 = fieldWeight in 1737, 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=1737)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22.11.1998 18:57:22
-
Lusti, M.: Data Warehousing and Data Mining : Eine Einführung in entscheidungsunterstützende Systeme (1999)
0.01
0.008143693 = product of:
0.016287386 = sum of:
0.016287386 = product of:
0.04886216 = sum of:
0.04886216 = weight(_text_:22 in 4261) [ClassicSimilarity], result of:
0.04886216 = score(doc=4261,freq=2.0), product of:
0.15786383 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045080382 = queryNorm
0.30952093 = fieldWeight in 4261, 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=4261)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 17. 7.2002 19:22:06
-
Amir, A.; Feldman, R.; Kashi, R.: ¬A new and versatile method for association generation (1997)
0.01
0.008143693 = product of:
0.016287386 = sum of:
0.016287386 = product of:
0.04886216 = sum of:
0.04886216 = weight(_text_:22 in 1270) [ClassicSimilarity], result of:
0.04886216 = score(doc=1270,freq=2.0), product of:
0.15786383 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045080382 = queryNorm
0.30952093 = fieldWeight in 1270, 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=1270)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Information systems. 22(1997) nos.5/6, S.333-347
-
Leydesdorff, L.; Persson, O.: Mapping the geography of science : distribution patterns and networks of relations among cities and institutes (2010)
0.01
0.007868482 = product of:
0.015736964 = sum of:
0.015736964 = product of:
0.047210887 = sum of:
0.047210887 = weight(_text_:l in 3704) [ClassicSimilarity], result of:
0.047210887 = score(doc=3704,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.26348472 = fieldWeight in 3704, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3704)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Dang, X.H.; Ong. K.-L.: Knowledge discovery in data streams (2009)
0.01
0.007868482 = product of:
0.015736964 = sum of:
0.015736964 = product of:
0.047210887 = sum of:
0.047210887 = weight(_text_:l in 3829) [ClassicSimilarity], result of:
0.047210887 = score(doc=3829,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.26348472 = fieldWeight in 3829, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3829)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Biskri, I.; Rompré, L.: Using association rules for query reformulation (2012)
0.01
0.007868482 = product of:
0.015736964 = sum of:
0.015736964 = product of:
0.047210887 = sum of:
0.047210887 = weight(_text_:l in 92) [ClassicSimilarity], result of:
0.047210887 = score(doc=92,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.26348472 = fieldWeight in 92, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=92)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Maaten, L. van den; Hinton, G.: Visualizing non-metric similarities in multiple maps (2012)
0.01
0.007868482 = product of:
0.015736964 = sum of:
0.015736964 = product of:
0.047210887 = sum of:
0.047210887 = weight(_text_:l in 3884) [ClassicSimilarity], result of:
0.047210887 = score(doc=3884,freq=2.0), product of:
0.17917885 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045080382 = queryNorm
0.26348472 = fieldWeight in 3884, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3884)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
