Search (14 results, page 1 of 1)

  • × year_i:[2010 TO 2020}
  • × theme_ss:"Retrievalalgorithmen"
  1. Jiang, X.; Sun, X.; Yang, Z.; Zhuge, H.; Lapshinova-Koltunski, E.; Yao, J.: Exploiting heterogeneous scientific literature networks to combat ranking bias : evidence from the computational linguistics area (2016) 0.02
    0.015766267 = product of:
      0.031532533 = sum of:
        0.031532533 = product of:
          0.06306507 = sum of:
            0.06306507 = weight(_text_:x in 3017) [ClassicSimilarity], result of:
              0.06306507 = score(doc=3017,freq=4.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.32989708 = fieldWeight in 3017, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3017)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  2. Fu, X.: Towards a model of implicit feedback for Web search (2010) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 3310) [ClassicSimilarity], result of:
              0.053512476 = score(doc=3310,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 3310, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3310)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Efron, M.: Linear time series models for term weighting in information retrieval (2010) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 3688) [ClassicSimilarity], result of:
              0.053512476 = score(doc=3688,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 3688, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3688)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Common measures of term importance in information retrieval (IR) rely on counts of term frequency; rare terms receive higher weight in document ranking than common terms receive. However, realistic scenarios yield additional information about terms in a collection. Of interest in this article is the temporal behavior of terms as a collection changes over time. We propose capturing each term's collection frequency at discrete time intervals over the lifespan of a corpus and analyzing the resulting time series. We hypothesize the collection frequency of a weakly discriminative term x at time t is predictable by a linear model of the term's prior observations. On the other hand, a linear time series model for a strong discriminators' collection frequency will yield a poor fit to the data. Operationalizing this hypothesis, we induce three time-based measures of term importance and test these against state-of-the-art term weighting models.
  4. Liu, X.; Turtle, H.: Real-time user interest modeling for real-time ranking (2013) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 1035) [ClassicSimilarity], result of:
              0.053512476 = score(doc=1035,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 1035, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1035)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  5. Zhang, W.; Yoshida, T.; Tang, X.: ¬A comparative study of TF*IDF, LSI and multi-words for text classification (2011) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 1165) [ClassicSimilarity], result of:
              0.053512476 = score(doc=1165,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 1165, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1165)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  6. Li, H.; Wu, H.; Li, D.; Lin, S.; Su, Z.; Luo, X.: PSI: A probabilistic semantic interpretable framework for fine-grained image ranking (2018) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 4577) [ClassicSimilarity], result of:
              0.053512476 = score(doc=4577,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 4577, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4577)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  7. Walz, J.: Analyse der Übertragbarkeit allgemeiner Rankingfaktoren von Web-Suchmaschinen auf Discovery-Systeme (2018) 0.01
    0.013378119 = product of:
      0.026756238 = sum of:
        0.026756238 = product of:
          0.053512476 = sum of:
            0.053512476 = weight(_text_:x in 5744) [ClassicSimilarity], result of:
              0.053512476 = score(doc=5744,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27992693 = fieldWeight in 5744, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5744)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    x
  8. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.01
    0.012267244 = product of:
      0.024534488 = sum of:
        0.024534488 = product of:
          0.049068976 = sum of:
            0.049068976 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
              0.049068976 = score(doc=1431,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.30952093 = fieldWeight in 1431, 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=1431)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 8.2014 17:05:18
  9. Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014) 0.01
    0.012267244 = product of:
      0.024534488 = sum of:
        0.024534488 = product of:
          0.049068976 = sum of:
            0.049068976 = weight(_text_:22 in 1484) [ClassicSimilarity], result of:
              0.049068976 = score(doc=1484,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.30952093 = fieldWeight in 1484, 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=1484)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    13. 9.2014 14:45:22
  10. Liu, X.; Zheng, W.; Fang, H.: ¬An exploration of ranking models and feedback method for related entity finding (2013) 0.01
    0.011148433 = product of:
      0.022296866 = sum of:
        0.022296866 = product of:
          0.044593733 = sum of:
            0.044593733 = weight(_text_:x in 2714) [ClassicSimilarity], result of:
              0.044593733 = score(doc=2714,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.23327245 = fieldWeight in 2714, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2714)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  11. Zhu, J.; Han, L.; Gou, Z.; Yuan, X.: ¬A fuzzy clustering-based denoising model for evaluating uncertainty in collaborative filtering recommender systems (2018) 0.01
    0.011148433 = product of:
      0.022296866 = sum of:
        0.022296866 = product of:
          0.044593733 = sum of:
            0.044593733 = weight(_text_:x in 4460) [ClassicSimilarity], result of:
              0.044593733 = score(doc=4460,freq=2.0), product of:
                0.19116588 = queryWeight, product of:
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.045271195 = queryNorm
                0.23327245 = fieldWeight in 4460, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.2226825 = idf(docFreq=1761, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4460)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  12. Ravana, S.D.; Rajagopal, P.; Balakrishnan, V.: Ranking retrieval systems using pseudo relevance judgments (2015) 0.01
    0.010842814 = product of:
      0.021685628 = sum of:
        0.021685628 = product of:
          0.043371256 = sum of:
            0.043371256 = weight(_text_:22 in 2591) [ClassicSimilarity], result of:
              0.043371256 = score(doc=2591,freq=4.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.27358043 = fieldWeight in 2591, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2591)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    20. 1.2015 18:30:22
    18. 9.2018 18:22:56
  13. Baloh, P.; Desouza, K.C.; Hackney, R.: Contextualizing organizational interventions of knowledge management systems : a design science perspectiveA domain analysis (2012) 0.01
    0.0076670274 = product of:
      0.015334055 = sum of:
        0.015334055 = product of:
          0.03066811 = sum of:
            0.03066811 = weight(_text_:22 in 241) [ClassicSimilarity], result of:
              0.03066811 = score(doc=241,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.19345059 = fieldWeight in 241, 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=241)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    11. 6.2012 14:22:34
  14. Soulier, L.; Jabeur, L.B.; Tamine, L.; Bahsoun, W.: On ranking relevant entities in heterogeneous networks using a language-based model (2013) 0.01
    0.0076670274 = product of:
      0.015334055 = sum of:
        0.015334055 = product of:
          0.03066811 = sum of:
            0.03066811 = weight(_text_:22 in 664) [ClassicSimilarity], result of:
              0.03066811 = score(doc=664,freq=2.0), product of:
                0.15853201 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045271195 = queryNorm
                0.19345059 = fieldWeight in 664, 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=664)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2013 19:34:49