J. Blustein's Publications

Corrections to Tools for Converting Text to Hypertext by W. J. Blustein (1994)

Overview

In revisiting the experiments described in my MSc. thesis I discovered that I had made some errors in the computations I had reported. The errors are, to my mind, minor because they do not affect the concept of the type of evaluation I was demonstrating. The concept is as sound as ever. The errors should be corrected nonetheless.

The changes affect Tables 4.1, 4.2 and 4.3 and the minor conclusion in section 5.3.

Corrections

Corrected Table 4.1 (page 37)

  Idf                      
    Finite Paths  Finite
    Correlation         
  1 -0.7869        0.17%
  2 -0.5357        1.45%   
  3 -0.1271       47.12%  
  4 -0.1430       78.45%  
  5 -0.1627       88.72% 

Corrected Table 4.2 (page 37)

  Entropy      
    Finite Paths  Finite
    Correlation    
  1 -0.8099        0.18%
  2 -0.5888        0.95% 
  3 -0.1840       29.97%
  4 -0.1483       69.49%
  5 -0.1638       81.24%

Corrected Table 4.3 (page 38)

  GfIdf        
    Finite Paths
    Correlation   Finite
  1 -0.8050        0.17%
  2 -0.6771        0.88%
  3 -0.1735       29.49%
  4 -0.1544       69.78%
  5 -0.1820       84.30%

Section 5.3 (pages 42 to 43)

The conclusion in Section 5.3 `Which Method Is Best' is withdrawn. These corrections do not affect the concept of the type of evaluation.

Further Work

The IP&M paper I wrote with Bob Webber and Jean Tague-Sutcliffe is mostly about the concept of using a graph to evaluate hypertext link quality.