Document (#37058)

Author

Thelwall, M.
Sud, P.
Wilkinson, D.

Title

Link and co-inlink network diagrams with URL citations or title mentions

Source

Journal of the American Society for Information Science and Technology. 63(2012) no.4, S.805-816

Year

2012

Abstract

Webometric network analyses have been used to map the connectivity of groups of websites to identify clusters, important sites or overall structure. Such analyses have mainly been based upon hyperlink counts, the number of hyperlinks between a pair of websites, although some have used title mentions or URL citations instead. The ability to automatically gather hyperlink counts from Yahoo! ceased in April 2011 and the ability to manually gather such counts was due to cease by early 2012, creating a need for alternatives. This article assesses URL citations and title mentions as possible replacements for hyperlinks in both binary and weighted direct link and co-inlink network diagrams. It also assesses three different types of data for the network connections: hit count estimates, counts of matching URLs, and filtered counts of matching URLs. Results from analyses of U.S. library and information science departments and U.K. universities give evidence that metrics based upon URLs or titles can be appropriate replacements for metrics based upon hyperlinks for both binary and weighted networks, although filtered counts of matching URLs are necessary to give the best results for co-title mention and co-URL citation network diagrams.

Theme

Informetrie

Similar documents (author)

1. Thelwall, M.; Wilkinson, D.: Graph structure in three national academic Webs : power laws with anomalies (2003) 5.54

   5.54445 = sum of:
     5.54445 = sum of:
       1.8287488 = weight(author_txt:thelwall in 2681) [ClassicSimilarity], result of:
         1.8287488 = score(doc=2681,freq=1.0), product of:
           0.52900064 = queryWeight, product of:
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.076511785 = queryNorm
           3.4569879 = fieldWeight in 2681, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.5 = fieldNorm(doc=2681)
       3.715701 = weight(author_txt:wilkinson in 2681) [ClassicSimilarity], result of:
         3.715701 = score(doc=2681,freq=1.0), product of:
           0.8486214 = queryWeight, product of:
             1.2665691 = boost
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.076511785 = queryNorm
           4.3785143 = fieldWeight in 2681, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.5 = fieldNorm(doc=2681)
   

2. Thelwall, M.; Wilkinson, D.: Finding similar academic Web sites with links, bibliometric couplings and colinks (2004) 5.54

   5.54445 = sum of:
     5.54445 = sum of:
       1.8287488 = weight(author_txt:thelwall in 3571) [ClassicSimilarity], result of:
         1.8287488 = score(doc=3571,freq=1.0), product of:
           0.52900064 = queryWeight, product of:
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.076511785 = queryNorm
           3.4569879 = fieldWeight in 3571, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.5 = fieldNorm(doc=3571)
       3.715701 = weight(author_txt:wilkinson in 3571) [ClassicSimilarity], result of:
         3.715701 = score(doc=3571,freq=1.0), product of:
           0.8486214 = queryWeight, product of:
             1.2665691 = boost
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.076511785 = queryNorm
           4.3785143 = fieldWeight in 3571, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.5 = fieldNorm(doc=3571)
   

3. Thelwall, M.; Wilkinson, D.: Public dialogs in social network sites : What is their purpose? (2010) 5.54

   5.54445 = sum of:
     5.54445 = sum of:
       1.8287488 = weight(author_txt:thelwall in 314) [ClassicSimilarity], result of:
         1.8287488 = score(doc=314,freq=1.0), product of:
           0.52900064 = queryWeight, product of:
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.076511785 = queryNorm
           3.4569879 = fieldWeight in 314, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.5 = fieldNorm(doc=314)
       3.715701 = weight(author_txt:wilkinson in 314) [ClassicSimilarity], result of:
         3.715701 = score(doc=314,freq=1.0), product of:
           0.8486214 = queryWeight, product of:
             1.2665691 = boost
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.076511785 = queryNorm
           4.3785143 = fieldWeight in 314, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.5 = fieldNorm(doc=314)
   

4. Wilkinson, D.; Thelwall, M.: Social network site changes over time : the case of MySpace (2010) 5.54

   5.54445 = sum of:
     5.54445 = sum of:
       1.8287488 = weight(author_txt:thelwall in 106) [ClassicSimilarity], result of:
         1.8287488 = score(doc=106,freq=1.0), product of:
           0.52900064 = queryWeight, product of:
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.076511785 = queryNorm
           3.4569879 = fieldWeight in 106, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.5 = fieldNorm(doc=106)
       3.715701 = weight(author_txt:wilkinson in 106) [ClassicSimilarity], result of:
         3.715701 = score(doc=106,freq=1.0), product of:
           0.8486214 = queryWeight, product of:
             1.2665691 = boost
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.076511785 = queryNorm
           4.3785143 = fieldWeight in 106, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.5 = fieldNorm(doc=106)
   

5. Wilkinson, D.; Thelwall, M.: Trending Twitter topics in English : an international comparison (2012) 5.54

   5.54445 = sum of:
     5.54445 = sum of:
       1.8287488 = weight(author_txt:thelwall in 1375) [ClassicSimilarity], result of:
         1.8287488 = score(doc=1375,freq=1.0), product of:
           0.52900064 = queryWeight, product of:
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.076511785 = queryNorm
           3.4569879 = fieldWeight in 1375, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.9139757 = idf(docFreq=119, maxDocs=44421)
             0.5 = fieldNorm(doc=1375)
       3.715701 = weight(author_txt:wilkinson in 1375) [ClassicSimilarity], result of:
         3.715701 = score(doc=1375,freq=1.0), product of:
           0.8486214 = queryWeight, product of:
             1.2665691 = boost
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.076511785 = queryNorm
           4.3785143 = fieldWeight in 1375, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.757029 = idf(docFreq=18, maxDocs=44421)
             0.5 = fieldNorm(doc=1375)
   

Similar documents (content)

1. Thelwall, M.: ¬A comparison of link and URL citation counting (2011) 0.17

   0.166755 = sum of:
     0.166755 = product of:
       0.833775 = sum of:
         0.09785636 = weight(abstract_txt:link in 533) [ClassicSimilarity], result of:
           0.09785636 = score(doc=533,freq=8.0), product of:
             0.096987925 = queryWeight, product of:
               1.1701035 = boost
               5.707506 = idf(docFreq=400, maxDocs=44421)
               0.0145226875 = queryNorm
             1.008954 = fieldWeight in 533, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.707506 = idf(docFreq=400, maxDocs=44421)
               0.0625 = fieldNorm(doc=533)
         0.09156493 = weight(abstract_txt:hyperlink in 533) [ClassicSimilarity], result of:
           0.09156493 = score(doc=533,freq=1.0), product of:
             0.18556999 = queryWeight, product of:
               1.6185247 = boost
               7.894805 = idf(docFreq=44, maxDocs=44421)
               0.0145226875 = queryNorm
             0.4934253 = fieldWeight in 533, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.894805 = idf(docFreq=44, maxDocs=44421)
               0.0625 = fieldNorm(doc=533)
         0.073269196 = weight(abstract_txt:citations in 533) [ClassicSimilarity], result of:
           0.073269196 = score(doc=533,freq=3.0), product of:
             0.12694801 = queryWeight, product of:
               1.6395476 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0145226875 = queryNorm
             0.57715905 = fieldWeight in 533, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=533)
         0.051558897 = weight(abstract_txt:analyses in 533) [ClassicSimilarity], result of:
           0.051558897 = score(doc=533,freq=1.0), product of:
             0.14485088 = queryWeight, product of:
               1.7513448 = boost
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.0145226875 = queryNorm
             0.35594466 = fieldWeight in 533, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.0625 = fieldNorm(doc=533)
         0.5195256 = weight(abstract_txt:counts in 533) [ClassicSimilarity], result of:
           0.5195256 = score(doc=533,freq=10.0), product of:
             0.39518458 = queryWeight, product of:
               4.090968 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0145226875 = queryNorm
             1.3146403 = fieldWeight in 533, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0625 = fieldNorm(doc=533)
       0.2 = coord(5/25)
   

2. Thelwall, M.; Sud, P.: ¬A comparison of methods for collecting web citation data for academic organizations (2011) 0.14

   0.13780656 = sum of:
     0.13780656 = product of:
       0.6890328 = sum of:
         0.04892818 = weight(abstract_txt:link in 626) [ClassicSimilarity], result of:
           0.04892818 = score(doc=626,freq=2.0), product of:
             0.096987925 = queryWeight, product of:
               1.1701035 = boost
               5.707506 = idf(docFreq=400, maxDocs=44421)
               0.0145226875 = queryNorm
             0.504477 = fieldWeight in 626, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.707506 = idf(docFreq=400, maxDocs=44421)
               0.0625 = fieldNorm(doc=626)
         0.059824042 = weight(abstract_txt:citations in 626) [ClassicSimilarity], result of:
           0.059824042 = score(doc=626,freq=2.0), product of:
             0.12694801 = queryWeight, product of:
               1.6395476 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0145226875 = queryNorm
             0.47124836 = fieldWeight in 626, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=626)
         0.1749234 = weight(abstract_txt:mentions in 626) [ClassicSimilarity], result of:
           0.1749234 = score(doc=626,freq=2.0), product of:
             0.25958166 = queryWeight, product of:
               2.3444884 = boost
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.0145226875 = queryNorm
             0.67386657 = fieldWeight in 626, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.0625 = fieldNorm(doc=626)
         0.12080129 = weight(abstract_txt:title in 626) [ClassicSimilarity], result of:
           0.12080129 = score(doc=626,freq=3.0), product of:
             0.19500194 = queryWeight, product of:
               2.3463886 = boost
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.0145226875 = queryNorm
             0.61948764 = fieldWeight in 626, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.0625 = fieldNorm(doc=626)
         0.28455585 = weight(abstract_txt:counts in 626) [ClassicSimilarity], result of:
           0.28455585 = score(doc=626,freq=3.0), product of:
             0.39518458 = queryWeight, product of:
               4.090968 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0145226875 = queryNorm
             0.7200581 = fieldWeight in 626, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0625 = fieldNorm(doc=626)
       0.2 = coord(5/25)
   

3. Vaughan, L.; Shaw , D.: Bibliographic and Web citations : what Is the difference? (2003) 0.13

   0.1301898 = sum of:
     0.1301898 = product of:
       0.650949 = sum of:
         0.06411055 = weight(abstract_txt:citations in 176) [ClassicSimilarity], result of:
           0.06411055 = score(doc=176,freq=3.0), product of:
             0.12694801 = queryWeight, product of:
               1.6395476 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0145226875 = queryNorm
             0.5050142 = fieldWeight in 176, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0546875 = fieldNorm(doc=176)
         0.10480086 = weight(abstract_txt:hyperlinks in 176) [ClassicSimilarity], result of:
           0.10480086 = score(doc=176,freq=1.0), product of:
             0.25407186 = queryWeight, product of:
               2.3194733 = boost
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.0145226875 = queryNorm
             0.4124851 = fieldWeight in 176, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.0546875 = fieldNorm(doc=176)
         0.108228326 = weight(abstract_txt:mentions in 176) [ClassicSimilarity], result of:
           0.108228326 = score(doc=176,freq=1.0), product of:
             0.25958166 = queryWeight, product of:
               2.3444884 = boost
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.0145226875 = queryNorm
             0.41693366 = fieldWeight in 176, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.0546875 = fieldNorm(doc=176)
         0.08630461 = weight(abstract_txt:title in 176) [ClassicSimilarity], result of:
           0.08630461 = score(doc=176,freq=2.0), product of:
             0.19500194 = queryWeight, product of:
               2.3463886 = boost
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.0145226875 = queryNorm
             0.44258335 = fieldWeight in 176, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.0546875 = fieldNorm(doc=176)
         0.2875047 = weight(abstract_txt:counts in 176) [ClassicSimilarity], result of:
           0.2875047 = score(doc=176,freq=4.0), product of:
             0.39518458 = queryWeight, product of:
               4.090968 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0145226875 = queryNorm
             0.72752005 = fieldWeight in 176, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0546875 = fieldNorm(doc=176)
       0.2 = coord(5/25)
   

4. Barjak, F.; Li, X.; Thelwall, M.: Which factors explain the Web impact of scientists' personal homepages? (2007) 0.13

   0.12532781 = sum of:
     0.12532781 = product of:
       0.78329885 = sum of:
         0.08011931 = weight(abstract_txt:hyperlink in 1073) [ClassicSimilarity], result of:
           0.08011931 = score(doc=1073,freq=1.0), product of:
             0.18556999 = queryWeight, product of:
               1.6185247 = boost
               7.894805 = idf(docFreq=44, maxDocs=44421)
               0.0145226875 = queryNorm
             0.43174714 = fieldWeight in 1073, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.894805 = idf(docFreq=44, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1073)
         0.23415442 = weight(abstract_txt:inlink in 1073) [ClassicSimilarity], result of:
           0.23415442 = score(doc=1073,freq=3.0), product of:
             0.26301312 = queryWeight, product of:
               1.9268777 = boost
               9.398883 = idf(docFreq=9, maxDocs=44421)
               0.0145226875 = queryNorm
             0.89027655 = fieldWeight in 1073, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               9.398883 = idf(docFreq=9, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1073)
         0.1815204 = weight(abstract_txt:hyperlinks in 1073) [ClassicSimilarity], result of:
           0.1815204 = score(doc=1073,freq=3.0), product of:
             0.25407186 = queryWeight, product of:
               2.3194733 = boost
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.0145226875 = queryNorm
             0.7144451 = fieldWeight in 1073, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.5425844 = idf(docFreq=63, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1073)
         0.2875047 = weight(abstract_txt:counts in 1073) [ClassicSimilarity], result of:
           0.2875047 = score(doc=1073,freq=4.0), product of:
             0.39518458 = queryWeight, product of:
               4.090968 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0145226875 = queryNorm
             0.72752005 = fieldWeight in 1073, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1073)
       0.16 = coord(4/25)
   

5. Costas, R.; Zahedi, Z.; Wouters, P.: ¬The thematic orientation of publications mentioned on social media : large-scale disciplinary comparison of social media metrics with citations (2015) 0.11

   0.11133349 = sum of:
     0.11133349 = product of:
       0.55666745 = sum of:
         0.10677816 = weight(abstract_txt:metrics in 3598) [ClassicSimilarity], result of:
           0.10677816 = score(doc=3598,freq=4.0), product of:
             0.12951595 = queryWeight, product of:
               1.3521569 = boost
               6.595522 = idf(docFreq=164, maxDocs=44421)
               0.0145226875 = queryNorm
             0.82444024 = fieldWeight in 3598, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.595522 = idf(docFreq=164, maxDocs=44421)
               0.0625 = fieldNorm(doc=3598)
         0.04230199 = weight(abstract_txt:citations in 3598) [ClassicSimilarity], result of:
           0.04230199 = score(doc=3598,freq=1.0), product of:
             0.12694801 = queryWeight, product of:
               1.6395476 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0145226875 = queryNorm
             0.33322293 = fieldWeight in 3598, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=3598)
         0.051558897 = weight(abstract_txt:analyses in 3598) [ClassicSimilarity], result of:
           0.051558897 = score(doc=3598,freq=1.0), product of:
             0.14485088 = queryWeight, product of:
               1.7513448 = boost
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.0145226875 = queryNorm
             0.35594466 = fieldWeight in 3598, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.0625 = fieldNorm(doc=3598)
         0.123689525 = weight(abstract_txt:mentions in 3598) [ClassicSimilarity], result of:
           0.123689525 = score(doc=3598,freq=1.0), product of:
             0.25958166 = queryWeight, product of:
               2.3444884 = boost
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.0145226875 = queryNorm
             0.47649562 = fieldWeight in 3598, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.0625 = fieldNorm(doc=3598)
         0.23233888 = weight(abstract_txt:counts in 3598) [ClassicSimilarity], result of:
           0.23233888 = score(doc=3598,freq=2.0), product of:
             0.39518458 = queryWeight, product of:
               4.090968 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0145226875 = queryNorm
             0.58792496 = fieldWeight in 3598, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0625 = fieldNorm(doc=3598)
       0.2 = coord(5/25)