Search (7 results, page 1 of 1)

  • × author_ss:"Jansen, B.J."
  • × language_ss:"e"
  • × year_i:[2010 TO 2020}
  1. Coughlin, D.M.; Jansen, B.J.: Modeling journal bibliometrics to predict downloads and inform purchase decisions at university research libraries (2016) 0.02 
    0.019354446 = product of:
  0.03870889 = sum of:
    0.029653627 = weight(_text_:management in 3094) [ClassicSimilarity], result of:
      0.029653627 = score(doc=3094,freq=2.0), product of:
        0.15925534 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.047248192 = queryNorm
        0.18620178 = fieldWeight in 3094, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3094)
    0.009055263 = product of:
      0.018110527 = sum of:
        0.018110527 = weight(_text_:science in 3094) [ClassicSimilarity], result of:
          0.018110527 = score(doc=3094,freq=2.0), product of:
            0.124457374 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.047248192 = queryNorm
            0.1455159 = fieldWeight in 3094, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3094)
      0.5 = coord(1/2)
  0.5 = coord(2/4)
    Abstract
    University libraries provide access to thousands of online journals and other content, spending millions of dollars annually on these electronic resources. Providing access to these online resources is costly, and it is difficult both to analyze the value of this content to the institution and to discern those journals that comparatively provide more value. In this research, we examine 1,510 journals from a large research university library, representing more than 40% of the university's annual subscription cost for electronic resources at the time of the study. We utilize a web analytics approach for the creation of a linear regression model to predict usage among these journals. We categorize metrics into two classes: global (journal focused) and local (institution dependent). Using 275 journals for our training set, our analysis shows that a combination of global and local metrics creates the strongest model for predicting full-text downloads. Our linear regression model has an accuracy of more than 80% in predicting downloads for the 1,235 journals in our test set. The implications of the findings are that university libraries that use local metrics have better insight into the value of a journal and therefore more efficient cost content management.
    Source
    Journal of the Association for Information Science and Technology. 67(2016) no.9, S.2263-2273
  2. Ortiz-Cordova, A.; Yang, Y.; Jansen, B.J.: External to internal search : associating searching on search engines with searching on sites (2015) 0.01 
    0.007413407 = product of:
  0.029653627 = sum of:
    0.029653627 = weight(_text_:management in 2675) [ClassicSimilarity], result of:
      0.029653627 = score(doc=2675,freq=2.0), product of:
        0.15925534 = queryWeight, product of:
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.047248192 = queryNorm
        0.18620178 = fieldWeight in 2675, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3706124 = idf(docFreq=4130, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2675)
  0.25 = coord(1/4)
    Source
    Information processing and management. 51(2015) no.5, S.718-736
  3. Jansen, B.J.; Rieh, S.Y.: ¬The seventeen theoretical constructs of information searching and information retrieval (2010) 0.00 
    0.002716579 = product of:
  0.010866316 = sum of:
    0.010866316 = product of:
      0.021732632 = sum of:
        0.021732632 = weight(_text_:science in 3690) [ClassicSimilarity], result of:
          0.021732632 = score(doc=3690,freq=2.0), product of:
            0.124457374 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.047248192 = queryNorm
            0.17461908 = fieldWeight in 3690, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=3690)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.8, S.1517-1534
  4. Ortiz-Cordova, A.; Jansen, B.J.: Classifying web search queries to identify high revenue generating customers (2012) 0.00 
    0.002716579 = product of:
  0.010866316 = sum of:
    0.010866316 = product of:
      0.021732632 = sum of:
        0.021732632 = weight(_text_:science in 279) [ClassicSimilarity], result of:
          0.021732632 = score(doc=279,freq=2.0), product of:
            0.124457374 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.047248192 = queryNorm
            0.17461908 = fieldWeight in 279, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=279)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.7, S.1426-1441
  5. Jansen, B.J.; Liu, Z.; Simon, Z.: ¬The effect of ad rank on the performance of keyword advertising campaigns (2013) 0.00 
    0.0022638158 = product of:
  0.009055263 = sum of:
    0.009055263 = product of:
      0.018110527 = sum of:
        0.018110527 = weight(_text_:science in 1095) [ClassicSimilarity], result of:
          0.018110527 = score(doc=1095,freq=2.0), product of:
            0.124457374 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.047248192 = queryNorm
            0.1455159 = fieldWeight in 1095, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1095)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Journal of the American Society for Information Science and Technology. 64(2013) no.10, S.2115-2132
  6. Coughlin, D.M.; Campbell, M.C.; Jansen, B.J.: ¬A web analytics approach for appraising electronic resources in academic libraries (2016) 0.00 
    0.0022638158 = product of:
  0.009055263 = sum of:
    0.009055263 = product of:
      0.018110527 = sum of:
        0.018110527 = weight(_text_:science in 2770) [ClassicSimilarity], result of:
          0.018110527 = score(doc=2770,freq=2.0), product of:
            0.124457374 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.047248192 = queryNorm
            0.1455159 = fieldWeight in 2770, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2770)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Journal of the Association for Information Science and Technology. 67(2016) no.3, S.518-534
  7. Liu, Z.; Jansen, B.J.: ASK: A taxonomy of accuracy, social, and knowledge information seeking posts in social question and answering (2017) 0.00 
    0.0022638158 = product of:
  0.009055263 = sum of:
    0.009055263 = product of:
      0.018110527 = sum of:
        0.018110527 = weight(_text_:science in 3345) [ClassicSimilarity], result of:
          0.018110527 = score(doc=3345,freq=2.0), product of:
            0.124457374 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.047248192 = queryNorm
            0.1455159 = fieldWeight in 3345, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3345)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.2, S.333-347

Authors

Themes